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Re: [softrock40] First Impressions: HF-3dBSDR Receiver

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  • Larry Dighera
    Hello Garry, The information you provided confirms that you have a Rev.A HF-3dBSDR receiver too. Like you, I also found 5V on my Si570. What I want to know
    Message 1 of 27 , Sep 9, 2013
    • 0 Attachment
      Hello Garry,

      The information you provided confirms that you have a Rev.A HF-3dBSDR receiver
      too. Like you, I also found 5V on my Si570. What I want to know is, did yours
      work like that, with 5V on the Si570? Or did you have to route 3.3 VDC to the
      Si570 to get it to work?

      You should find this message I received from 3dB today interesting (below).

      I don't know if I should go through the trouble of sending mine back for
      exchange for a Rev.2 board, or just cut and jumper.

      Thanks for your help.

      Best regards,
      Larry



      ============= Begin 3dB message =============================
      To: Larry@...
      Subject: Re: HF-3dBSDR Support documents
      From: Sam Ammons <sam@...>
      Date: Mon, 9 Sep 2013 17:13:43 -0400

      I talked with the builder and he said that an error in the schematic is the
      cause of the improper voltage. This was fixed in revision 2 of the board so
      I am assuming you have revision 1. We have the next batch of revision 2
      boards coming in in a week and it will be a day or three to build one. If
      you like, we can swap it out for free. Just return it to us at the address
      sent earlier. Your rma number is XX. look on the back of yours and see if
      you have a serial number sticker. If you dont have a serial number sticker
      it means you managed to buy a prototype, possibly my own personal sdr. If
      you do have a serial number I would like to contact the serial numbers
      close to it to see if they have the same problem. There were 50 Rev 1
      boards made.

      The builder says he knew of the over voltage but didnt see any performance
      problems so he passed the quality check on them and changed the board
      design. I dont know if a shortened life cycle will be a result of this or
      if it results in more noise, but I will certainly test a rev 2 board vs a
      rev 1 board and tell you what I find.

      Sam


      On Mon, Sep 9, 2013 at 3:17 PM, Larry Dighera <Larry@...> wrote:

      >
      > Hello Sam,
      >
      > Thank you for your offer of support, and suggestions regarding SDR
      > software/driver installation.
      >
      > In response to a member of the Softrock40 Yahoo group, I have generated the
      > information below.
      >
      > The cause of the issue I'm experiencing with the HF-3dBSDR receiver may be
      > related to the 4.76 VDC I measured on pin 6 of the Si570 chip. The Silicon
      > Labs Si57X data sheet specifies a maximum of 3.63 VDC. This 1.13 voltage
      > in
      > excess of the manufacturer's specified maximum represents a 34%
      > over-voltage.
      >
      > Are you able to explain this discrepancy from the HF-3dBSDR schematic?
      >
      > Can you issue me an RMA for a replacement board?
      >
      > Thank you for your assistance.
      >
      > Best regards,
      > Larry
      >
      > =====================================================================
      > Messages From CFGSR:
      >
      > General tab:
      > Green light in lower left hand corner
      > "USB AVR Si570 connected V15.14" message at bottom
      >
      > USB tab:
      > USB VID and PID correct
      > Manufacturer: www.obdev.at
      > Product: DG8SAQ-I2C (device in Printers and Faxes also)
      > Serial Number: PE0FKO-0 Box: 0
      > Auto Connect: checked
      > DevNum: -1 (becomes '1' when device selected in table)
      > Table: www.obdev.at/DG8SAQ-I2C/PE0FKO-0 bus-0
      > \\.\libsub0-0001--0x16c0-0x05dc
      >
      > Si570 tab:
      > i2c addr: 0x55
      > Freq range: 3 160
      > Startup: 40.001MHz
      > VFO: 10.00025 MHz
      > Smooth: 3500
      > @VFO: +- 35 KHz
      > Si570: Grade C
      > DCO min: 0%
      > Dco max: 0%
      > Index: [blank]
      >
      > LO tab:
      > LO: Total:
      > Multiply: 4
      > Offset: 0 MHz
      > LO: DLL
      > Multiply: 4
      > Offset: 0 MHz
      > LO: Firmware
      > Multiply: 1
      > Offset: 0
      > There are three filters (0, 1, 2, and 3)
      > Filter Band 0: 0 ... 4 MHz
      > Filter Band 1: 4 ... 8 MHz
      > Filter Band 2: 8 ... 16 MHz
      > Filter Band 3: 16 ... > MHz
      >
      > Tune tab:
      > load freq box: unchecked
      > Requested frequency: 10.000250
      > mouse wheel: first box: 10, second box: 1 KHz
      > Set frequency: 40.001000
      > Si570 output frequency: 40.001000
      > Band: 2
      > Filter: 2
      >
      > ABPF tab:
      > Enable filter [ABPF]: Box checked
      > Manual filter: Box empty
      > RX Freq SET Freq Calculation Filter
      > ------- -------- ----------- ------
      > 0 ... 4 0 ... 16 none 0
      > 4 ... 8 16 ... 32 none 1
      > 8 ... 16 32 ... 64 none 2
      > 16 ... inf 54 ... inf none 3
      > (in operation filter LEDs do change depending on Freq.)
      >
      > Calibrate tab:
      > Factory startup frequency: 56.32 MHz
      > Tuned Real Diff
      > ----- ---- ----
      > 10.00025 10.00025 0.0 KHz
      > Bottom of tab: 114.285000 MHz
      >
      > Test tab:
      > Crystal frequency [sic]: 114.285000 MHz
      > Startup: 40.0001 MHz
      > LO Calculation: 0-1;0-1;0-1;0-1;
      > Si570 Reg [7:12] ?? RX Power down ?? (what is that?)
      > C, 4850:5670,0
      > Si570 Dividers: Smooth tune 3500 ppm
      > Si570 RFREQ: blue bar under 4.85 at left end of slider
      > Si570 frequency [sic]:
      > Set frequency [sic]: 40.001000 MHz
      > 3.3V dull-red until Get button pushed, then bright-red
      > P1/PTT: dull-red
      > P2/CW: Bright-green
      > CW2: Bright-green
      > PTT: grayed-out
      > Repeat: box unchecked
      >
      > Init tab:
      > Softrock RX V9.0 [BPF]: radio-button selected
      > Softrock TXRX V6.3: radio-button unselected
      > Ensemble RX: radio-button unselected
      > Ensemble RX II VHF (2m): radio-button unselected
      > Ensemble RX II (4m,6m): radio-button unselected
      > Ensemble RX II LF/HF(LF): radio-button unselected
      > Ensemble RX II LF/HF(HF): radio-button unselected
      > Ensemble RXTX: radio-button unselected
      > Other: radio-button unselected
      >
      > Mobo tab:
      > TX Filter tab:
      > all blank. Message at bottom: Not supported in this firmware.
      > PA Bias tab:
      > all blank. Message at bottom: Not supported in this firmware.
      > Status tab:
      > all blank. Message at bottom: Not supported in this firmware.
      >
      > About tab:
      > Configuration tool for the SoftRock Si570
      > Version: 2.6, build 602
      > Created by Fred, pe0fko.
      > Upper-left "light" gray, lower left light: green
      >
      >
      > Si57X Chip:
      > Marking: Si570 CAC000141G DIXJZ315+
      > The 570 designation indicates this is not a member of the programmable
      > family.
      > The first 'C' indicates this is a CMOS part with Vdd specified 3.3 VDC.
      > The 'A' indicates this part temperature stability is 50 ppm.
      > The 2nd 'C' indicates a frequency range: 10 to 160 MHz [1.2 to 40 MHz]
      > Voltage measured between pins 3 (GND) and 6 (Vdd) of the Si570 chip: 4.76
      > VDC(!), not the 3.3 VDC specified on the schematic and data sheet!
      > THIS MAY BE THE CAUSE OF MY FRUSTRATION!!!!!
      >
      > JP1 and JP2 are closed on my HF-3dB SDR.
      > 3.28 VDC measured across C9 at the output pin 5 of U4.
      >
      > While the Si570 doesn't seem to be warm with the higher than maximum
      > specified
      > voltage on it, I noted that you suggested that the HF-3dB SDR should be
      > returned to 3dB for replacement, as the chip life may have been degraded
      > 50% as
      > a result of the high Vdd supply voltage.
      >
      > I'm CCing 3dB on this message. Hopefully they'll stand behind their new
      > product.
      >
      > Now if I could just get some sort of compensation for the frustration I've
      > experienced and tens of hours I've wasted....
      >
      > Thank you very much for your kind assistance, Alan.
      >
      > Best regards,
      > Larry
      >
      >
      >
      >
      >
      > On Mon, 9 Sep 2013 12:12:25 -0400, Sam Ammons <sam@...> wrote:
      >
      > >The support documents are on the 3dbsdr.com web site, I can also email
      > the
      > >installation guide that is there to you if you cant find it on the
      > website.
      > >We cant learn every program out there because they conflict if installed
      > on
      > >the same machine, try removing all the sdr software and then reinstall
      > >hdsdr. Then read the installation instructions again, specifically the
      > >portion about the DLL installation with HDSDR. If it does not tune, the
      > DLL
      > >is not installed as the installation guide details.
      > >
      > >I personally use HDSDR and wrote the installation guide for that so you
      > >should be able to get it going, or have a friend with a second opinion
      > read
      > >the guide. Sometimes a second viewpoint helps.
      > >
      > >We are not setup for software support here but if you find an innacuracy
      > in
      > >the installation guide we need to know about it.
      > >
      > >Sincerely,
      >

      --
      Sam Ammons

      =========================== End of 3dB Message ===============================

      On Sun, 1 Sep 2013 04:16:38 +0100 (BST), Gerry Huss <gerryhombre007@...>
      wrote:

      >Larry,
      >when I switched on the power supply on my 3dB first nothing happened.
      >I found JP5 open, soldered it and signals were coming in.
      >there is one USB ground for the SI570 and another ground for the QSD, bandswitching is effected  by optocouplers.
      >However you have to connect these 2 grounds in order to switch on the red LED to show the unit is powered up.
      >QSD power is from USB 5 V via a Mosfet, thus resulting QSD ICs to be powered by 4,4V only.
      >SI570 pin 6 however is powered with 5 V direct from USB. (see datasheet ! )
      >D4 could not be found on board,
      >6 -15V supply is not populated and somewhat unclear.
      >I have asked the producers some questions, no reply so far has been received. QSE would have been nice.
      >Functionality is limited to receive.
      >Gerry, OE6HGG
      >
      >
      >________________________________
      > Von: Larry Dighera <larry@...>
      >An: softrock40@yahoogroups.com; sdr-radio-com@yahoogroups.com
      >Gesendet: 1:41 Sonntag, 1.September 2013
      >Betreff: [softrock40] First Impressions: HF-3dBSDR Receiver
      >
      >First Impressions: HF-3dBSDR Receiver posted here:
      ><http://forum.3dbsdr.com/viewtopic.php?f=2&t=16#p33>
      >
      >
    • KF5ULI
      I would exchange for a new one Angi ... -- Angi Amatuer Radio Operator call sign:* KF5ULI* *Trained SKYWARN weather spotter* *SpotterNet weather spotter*
      Message 2 of 27 , Sep 10, 2013
      • 0 Attachment
        I would exchange for a new one


        Angi



        On Mon, Sep 9, 2013 at 6:00 PM, Larry Dighera <larry@...> wrote:
         



        Hello Garry,

        The information you provided confirms that you have a Rev.A HF-3dBSDR receiver
        too. Like you, I also found 5V on my Si570. What I want to know is, did yours
        work like that, with 5V on the Si570? Or did you have to route 3.3 VDC to the
        Si570 to get it to work?

        You should find this message I received from 3dB today interesting (below).

        I don't know if I should go through the trouble of sending mine back for
        exchange for a Rev.2 board, or just cut and jumper.

        Thanks for your help.

        Best regards,
        Larry

        ============= Begin 3dB message =============================
        To: Larry@...
        Subject: Re: HF-3dBSDR Support documents
        From: Sam Ammons <sam@...>
        Date: Mon, 9 Sep 2013 17:13:43 -0400

        I talked with the builder and he said that an error in the schematic is the
        cause of the improper voltage. This was fixed in revision 2 of the board so
        I am assuming you have revision 1. We have the next batch of revision 2
        boards coming in in a week and it will be a day or three to build one. If
        you like, we can swap it out for free. Just return it to us at the address
        sent earlier. Your rma number is XX. look on the back of yours and see if
        you have a serial number sticker. If you dont have a serial number sticker
        it means you managed to buy a prototype, possibly my own personal sdr. If
        you do have a serial number I would like to contact the serial numbers
        close to it to see if they have the same problem. There were 50 Rev 1
        boards made.

        The builder says he knew of the over voltage but didnt see any performance
        problems so he passed the quality check on them and changed the board
        design. I dont know if a shortened life cycle will be a result of this or
        if it results in more noise, but I will certainly test a rev 2 board vs a
        rev 1 board and tell you what I find.

        Sam

        On Mon, Sep 9, 2013 at 3:17 PM, Larry Dighera <Larry@...> wrote:

        >
        > Hello Sam,
        >
        > Thank you for your offer of support, and suggestions regarding SDR
        > software/driver installation.
        >
        > In response to a member of the Softrock40 Yahoo group, I have generated the
        > information below.
        >
        > The cause of the issue I'm experiencing with the HF-3dBSDR receiver may be
        > related to the 4.76 VDC I measured on pin 6 of the Si570 chip. The Silicon
        > Labs Si57X data sheet specifies a maximum of 3.63 VDC. This 1.13 voltage
        > in
        > excess of the manufacturer's specified maximum represents a 34%
        > over-voltage.
        >
        > Are you able to explain this discrepancy from the HF-3dBSDR schematic?
        >
        > Can you issue me an RMA for a replacement board?
        >
        > Thank you for your assistance.
        >
        > Best regards,
        > Larry
        >
        > =====================================================================
        > Messages From CFGSR:
        >
        > General tab:
        > Green light in lower left hand corner
        > "USB AVR Si570 connected V15.14" message at bottom
        >
        > USB tab:
        > USB VID and PID correct
        > Manufacturer: www.obdev.at
        > Product: DG8SAQ-I2C (device in Printers and Faxes also)
        > Serial Number: PE0FKO-0 Box: 0
        > Auto Connect: checked
        > DevNum: -1 (becomes '1' when device selected in table)
        > Table: www.obdev.at/DG8SAQ-I2C/PE0FKO-0 bus-0
        > \\.\libsub0-0001--0x16c0-0x05dc
        >
        > Si570 tab:
        > i2c addr: 0x55
        > Freq range: 3 160
        > Startup: 40.001MHz
        > VFO: 10.00025 MHz
        > Smooth: 3500
        > @VFO: +- 35 KHz
        > Si570: Grade C
        > DCO min: 0%
        > Dco max: 0%
        > Index: [blank]
        >
        > LO tab:
        > LO: Total:
        > Multiply: 4
        > Offset: 0 MHz
        > LO: DLL
        > Multiply: 4
        > Offset: 0 MHz
        > LO: Firmware
        > Multiply: 1
        > Offset: 0
        > There are three filters (0, 1, 2, and 3)
        > Filter Band 0: 0 ... 4 MHz
        > Filter Band 1: 4 ... 8 MHz
        > Filter Band 2: 8 ... 16 MHz
        > Filter Band 3: 16 ... > MHz
        >
        > Tune tab:
        > load freq box: unchecked
        > Requested frequency: 10.000250
        > mouse wheel: first box: 10, second box: 1 KHz
        > Set frequency: 40.001000
        > Si570 output frequency: 40.001000
        > Band: 2
        > Filter: 2
        >
        > ABPF tab:
        > Enable filter [ABPF]: Box checked
        > Manual filter: Box empty
        > RX Freq SET Freq Calculation Filter
        > ------- -------- ----------- ------
        > 0 ... 4 0 ... 16 none 0
        > 4 ... 8 16 ... 32 none 1
        > 8 ... 16 32 ... 64 none 2
        > 16 ... inf 54 ... inf none 3
        > (in operation filter LEDs do change depending on Freq.)
        >
        > Calibrate tab:
        > Factory startup frequency: 56.32 MHz
        > Tuned Real Diff
        > ----- ---- ----
        > 10.00025 10.00025 0.0 KHz
        > Bottom of tab: 114.285000 MHz
        >
        > Test tab:
        > Crystal frequency [sic]: 114.285000 MHz
        > Startup: 40.0001 MHz
        > LO Calculation: 0-1;0-1;0-1;0-1;
        > Si570 Reg [7:12] ?? RX Power down ?? (what is that?)
        > C, 4850:5670,0
        > Si570 Dividers: Smooth tune 3500 ppm
        > Si570 RFREQ: blue bar under 4.85 at left end of slider
        > Si570 frequency [sic]:
        > Set frequency [sic]: 40.001000 MHz
        > 3.3V dull-red until Get button pushed, then bright-red
        > P1/PTT: dull-red
        > P2/CW: Bright-green
        > CW2: Bright-green
        > PTT: grayed-out
        > Repeat: box unchecked
        >
        > Init tab:
        > Softrock RX V9.0 [BPF]: radio-button selected
        > Softrock TXRX V6.3: radio-button unselected
        > Ensemble RX: radio-button unselected
        > Ensemble RX II VHF (2m): radio-button unselected
        > Ensemble RX II (4m,6m): radio-button unselected
        > Ensemble RX II LF/HF(LF): radio-button unselected
        > Ensemble RX II LF/HF(HF): radio-button unselected
        > Ensemble RXTX: radio-button unselected
        > Other: radio-button unselected
        >
        > Mobo tab:
        > TX Filter tab:
        > all blank. Message at bottom: Not supported in this firmware.
        > PA Bias tab:
        > all blank. Message at bottom: Not supported in this firmware.
        > Status tab:
        > all blank. Message at bottom: Not supported in this firmware.
        >
        > About tab:
        > Configuration tool for the SoftRock Si570
        > Version: 2.6, build 602
        > Created by Fred, pe0fko.
        > Upper-left "light" gray, lower left light: green
        >
        >
        > Si57X Chip:
        > Marking: Si570 CAC000141G DIXJZ315+
        > The 570 designation indicates this is not a member of the programmable
        > family.
        > The first 'C' indicates this is a CMOS part with Vdd specified 3.3 VDC.
        > The 'A' indicates this part temperature stability is 50 ppm.
        > The 2nd 'C' indicates a frequency range: 10 to 160 MHz [1.2 to 40 MHz]
        > Voltage measured between pins 3 (GND) and 6 (Vdd) of the Si570 chip: 4.76
        > VDC(!), not the 3.3 VDC specified on the schematic and data sheet!
        > THIS MAY BE THE CAUSE OF MY FRUSTRATION!!!!!
        >
        > JP1 and JP2 are closed on my HF-3dB SDR.
        > 3.28 VDC measured across C9 at the output pin 5 of U4.
        >
        > While the Si570 doesn't seem to be warm with the higher than maximum
        > specified
        > voltage on it, I noted that you suggested that the HF-3dB SDR should be
        > returned to 3dB for replacement, as the chip life may have been degraded
        > 50% as
        > a result of the high Vdd supply voltage.
        >
        > I'm CCing 3dB on this message. Hopefully they'll stand behind their new
        > product.
        >
        > Now if I could just get some sort of compensation for the frustration I've
        > experienced and tens of hours I've wasted....
        >
        > Thank you very much for your kind assistance, Alan.
        >
        > Best regards,
        > Larry
        >
        >
        >
        >
        >
        > On Mon, 9 Sep 2013 12:12:25 -0400, Sam Ammons <sam@...> wrote:
        >
        > >The support documents are on the 3dbsdr.com web site, I can also email
        > the
        > >installation guide that is there to you if you cant find it on the
        > website.
        > >We cant learn every program out there because they conflict if installed
        > on
        > >the same machine, try removing all the sdr software and then reinstall
        > >hdsdr. Then read the installation instructions again, specifically the
        > >portion about the DLL installation with HDSDR. If it does not tune, the
        > DLL
        > >is not installed as the installation guide details.
        > >
        > >I personally use HDSDR and wrote the installation guide for that so you
        > >should be able to get it going, or have a friend with a second opinion
        > read
        > >the guide. Sometimes a second viewpoint helps.
        > >
        > >We are not setup for software support here but if you find an innacuracy
        > in
        > >the installation guide we need to know about it.
        > >
        > >Sincerely,
        >

        --
        Sam Ammons

        =========================== End of 3dB Message ===============================

        On Sun, 1 Sep 2013 04:16:38 +0100 (BST), Gerry Huss <gerryhombre007@...>
        wrote:

        >Larry,
        >when I switched on the power supply on my 3dB first nothing happened.
        >I found JP5 open, soldered it and signals were coming in.
        >there is one USB ground for the SI570 and another ground for the QSD, bandswitching is effected  by optocouplers.
        >However you have to connect these 2 grounds in order to switch on the red LED to show the unit is powered up.
        >QSD power is from USB 5 V via a Mosfet, thus resulting QSD ICs to be powered by 4,4V only.
        >SI570 pin 6 however is powered with 5 V direct from USB. (see datasheet ! )
        >D4 could not be found on board,
        >6 -15V supply is not populated and somewhat unclear.
        >I have asked the producers some questions, no reply so far has been received. QSE would have been nice.
        >Functionality is limited to receive.
        >Gerry, OE6HGG
        >
        >
        >________________________________
        > Von: Larry Dighera <larry@...>
        >An: softrock40@yahoogroups.com; sdr-radio-com@yahoogroups.com
        >Gesendet: 1:41 Sonntag, 1.September 2013
        >Betreff: [softrock40] First Impressions: HF-3dBSDR Receiver
        >
        >First Impressions: HF-3dBSDR Receiver posted here:
        ><http://forum.3dbsdr.com/viewtopic.php?f=2&t=16#p33>
        >
        >




        --
        Angi
        Amatuer Radio Operator
        call sign: KF5ULI
        Trained SKYWARN weather spotter
        SpotterNet weather spotter
        CoCoRaHS weather station AR-SR-6

        FRBG Breeding Services, Specalizing in the problem and hard to breed does, In Arkansas and Missouri
        AI services for Caprine, Cervid, Cattle, Sheep,
        AI Classes in Caprine, In Ar and surrounding states

         
          
      • boydsoftprez
        Hello Larry, Did you get the new board working? Was curious haven t heard anything back from you. The board I shipped you ran on my desk for 2 days and I used
        Message 3 of 27 , Oct 4, 2013
        • 0 Attachment

           Hello Larry,


          Did you get the new board working? Was curious haven't heard anything back from you. The board I shipped you ran on my desk for 2 days and I used it to listen to many stations before we shipped to out to you. 


          J.J. Boyd

          http://3dbsdr.com



          ---In softrock40@yahoogroups.com, <softrock40@yahoogroups.com> wrote:

          I would exchange for a new one


          Angi



          On Mon, Sep 9, 2013 at 6:00 PM, Larry Dighera <larry@...> wrote:
           



          Hello Garry,

          The information you provided confirms that you have a Rev.A HF-3dBSDR receiver
          too. Like you, I also found 5V on my Si570. What I want to know is, did yours
          work like that, with 5V on the Si570? Or did you have to route 3.3 VDC to the
          Si570 to get it to work?

          You should find this message I received from 3dB today interesting (below).

          I don't know if I should go through the trouble of sending mine back for
          exchange for a Rev.2 board, or just cut and jumper.

          Thanks for your help.

          Best regards,
          Larry

          ============= Begin 3dB message =============================
          To: Larry@...
          Subject: Re: HF-3dBSDR Support documents
          From: Sam Ammons <sam@...>
          Date: Mon, 9 Sep 2013 17:13:43 -0400

          I talked with the builder and he said that an error in the schematic is the
          cause of the improper voltage. This was fixed in revision 2 of the board so
          I am assuming you have revision 1. We have the next batch of revision 2
          boards coming in in a week and it will be a day or three to build one. If
          you like, we can swap it out for free. Just return it to us at the address
          sent earlier. Your rma number is XX. look on the back of yours and see if
          you have a serial number sticker. If you dont have a serial number sticker
          it means you managed to buy a prototype, possibly my own personal sdr. If
          you do have a serial number I would like to contact the serial numbers
          close to it to see if they have the same problem. There were 50 Rev 1
          boards made.

          The builder says he knew of the over voltage but didnt see any performance
          problems so he passed the quality check on them and changed the board
          design. I dont know if a shortened life cycle will be a result of this or
          if it results in more noise, but I will certainly test a rev 2 board vs a
          rev 1 board and tell you what I find.

          Sam

          On Mon, Sep 9, 2013 at 3:17 PM, Larry Dighera <Larry@...> wrote:

          >
          > Hello Sam,
          >
          > Thank you for your offer of support, and suggestions regarding SDR
          > software/driver installation.
          >
          > In response to a member of the Softrock40 Yahoo group, I have generated the
          > information below.
          >
          > The cause of the issue I'm experiencing with the HF-3dBSDR receiver may be
          > related to the 4.76 VDC I measured on pin 6 of the Si570 chip. The Silicon
          > Labs Si57X data sheet specifies a maximum of 3.63 VDC. This 1.13 voltage
          > in
          > excess of the manufacturer's specified maximum represents a 34%
          > over-voltage.
          >
          > Are you able to explain this discrepancy from the HF-3dBSDR schematic?
          >
          > Can you issue me an RMA for a replacement board?
          >
          > Thank you for your assistance.
          >
          > Best regards,
          > Larry
          >
          > =====================================================================
          > Messages From CFGSR:
          >
          > General tab:
          > Green light in lower left hand corner
          > "USB AVR Si570 connected V15.14" message at bottom
          >
          > USB tab:
          > USB VID and PID correct
          > Manufacturer: www.obdev.at
          > Product: DG8SAQ-I2C (device in Printers and Faxes also)
          > Serial Number: PE0FKO-0 Box: 0
          > Auto Connect: checked
          > DevNum: -1 (becomes '1' when device selected in table)
          > Table: www.obdev.at/DG8SAQ-I2C/PE0FKO-0 bus-0
          > \\.\libsub0-0001--0x16c0-0x05dc
          >
          > Si570 tab:
          > i2c addr: 0x55
          > Freq range: 3 160
          > Startup: 40.001MHz
          > VFO: 10.00025 MHz
          > Smooth: 3500
          > @VFO: +- 35 KHz
          > Si570: Grade C
          > DCO min: 0%
          > Dco max: 0%
          > Index: [blank]
          >
          > LO tab:
          > LO: Total:
          > Multiply: 4
          > Offset: 0 MHz
          > LO: DLL
          > Multiply: 4
          > Offset: 0 MHz
          > LO: Firmware
          > Multiply: 1
          > Offset: 0
          > There are three filters (0, 1, 2, and 3)
          > Filter Band 0: 0 ... 4 MHz
          > Filter Band 1: 4 ... 8 MHz
          > Filter Band 2: 8 ... 16 MHz
          > Filter Band 3: 16 ... > MHz
          >
          > Tune tab:
          > load freq box: unchecked
          > Requested frequency: 10.000250
          > mouse wheel: first box: 10, second box: 1 KHz
          > Set frequency: 40.001000
          > Si570 output frequency: 40.001000
          > Band: 2
          > Filter: 2
          >
          > ABPF tab:
          > Enable filter [ABPF]: Box checked
          > Manual filter: Box empty
          > RX Freq SET Freq Calculation Filter
          > ------- -------- ----------- ------
          > 0 ... 4 0 ... 16 none 0
          > 4 ... 8 16 ... 32 none 1
          > 8 ... 16 32 ... 64 none 2
          > 16 ... inf 54 ... inf none 3
          > (in operation filter LEDs do change depending on Freq.)
          >
          > Calibrate tab:
          > Factory startup frequency: 56.32 MHz
          > Tuned Real Diff
          > ----- ---- ----
          > 10.00025 10.00025 0.0 KHz
          > Bottom of tab: 114.285000 MHz
          >
          > Test tab:
          > Crystal frequency [sic]: 114.285000 MHz
          > Startup: 40.0001 MHz
          > LO Calculation: 0-1;0-1;0-1;0-1;
          > Si570 Reg [7:12] ?? RX Power down ?? (what is that?)
          > C, 4850:5670,0
          > Si570 Dividers: Smooth tune 3500 ppm
          > Si570 RFREQ: blue bar under 4.85 at left end of slider
          > Si570 frequency [sic]:
          > Set frequency [sic]: 40.001000 MHz
          > 3.3V dull-red until Get button pushed, then bright-red
          > P1/PTT: dull-red
          > P2/CW: Bright-green
          > CW2: Bright-green
          > PTT: grayed-out
          > Repeat: box unchecked
          >
          > Init tab:
          > Softrock RX V9.0 [BPF]: radio-button selected
          > Softrock TXRX V6.3: radio-button unselected
          > Ensemble RX: radio-button unselected
          > Ensemble RX II VHF (2m): radio-button unselected
          > Ensemble RX II (4m,6m): radio-button unselected
          > Ensemble RX II LF/HF(LF): radio-button unselected
          > Ensemble RX II LF/HF(HF): radio-button unselected
          > Ensemble RXTX: radio-button unselected
          > Other: radio-button unselected
          >
          > Mobo tab:
          > TX Filter tab:
          > all blank. Message at bottom: Not supported in this firmware.
          > PA Bias tab:
          > all blank. Message at bottom: Not supported in this firmware.
          > Status tab:
          > all blank. Message at bottom: Not supported in this firmware.
          >
          > About tab:
          > Configuration tool for the SoftRock Si570
          > Version: 2.6, build 602
          > Created by Fred, pe0fko.
          > Upper-left "light" gray, lower left light: green
          >
          >
          > Si57X Chip:
          > Marking: Si570 CAC000141G DIXJZ315+
          > The 570 designation indicates this is not a member of the programmable
          > family.
          > The first 'C' indicates this is a CMOS part with Vdd specified 3.3 VDC.
          > The 'A' indicates this part temperature stability is 50 ppm.
          > The 2nd 'C' indicates a frequency range: 10 to 160 MHz [1.2 to 40 MHz]
          > Voltage measured between pins 3 (GND) and 6 (Vdd) of the Si570 chip: 4.76
          > VDC(!), not the 3.3 VDC specified on the schematic and data sheet!
          > THIS MAY BE THE CAUSE OF MY FRUSTRATION!!!!!
          >
          > JP1 and JP2 are closed on my HF-3dB SDR.
          > 3.28 VDC measured across C9 at the output pin 5 of U4.
          >
          > While the Si570 doesn't seem to be warm with the higher than maximum
          > specified
          > voltage on it, I noted that you suggested that the HF-3dB SDR should be
          > returned to 3dB for replacement, as the chip life may have been degraded
          > 50% as
          > a result of the high Vdd supply voltage.
          >
          > I'm CCing 3dB on this message. Hopefully they'll stand behind their new
          > product.
          >
          > Now if I could just get some sort of compensation for the frustration I've
          > experienced and tens of hours I've wasted....
          >
          > Thank you very much for your kind assistance, Alan.
          >
          > Best regards,
          > Larry
          >
          >
          >
          >
          >
          > On Mon, 9 Sep 2013 12:12:25 -0400, Sam Ammons <sam@...> wrote:
          >
          > >The support documents are on the 3dbsdr.com web site, I can also email
          > the
          > >installation guide that is there to you if you cant find it on the
          > website.
          > >We cant learn every program out there because they conflict if installed
          > on
          > >the same machine, try removing all the sdr software and then reinstall
          > >hdsdr. Then read the installation instructions again, specifically the
          > >portion about the DLL installation with HDSDR. If it does not tune, the
          > DLL
          > >is not installed as the installation guide details.
          > >
          > >I personally use HDSDR and wrote the installation guide for that so you
          > >should be able to get it going, or have a friend with a second opinion
          > read
          > >the guide. Sometimes a second viewpoint helps.
          > >
          > >We are not setup for software support here but if you find an innacuracy
          > in
          > >the installation guide we need to know about it.
          > >
          > >Sincerely,
          >

          --
          Sam Ammons

          =========================== End of 3dB Message ===============================

          On Sun, 1 Sep 2013 04:16:38 +0100 (BST), Gerry Huss <gerryhombre007@...>
          wrote:

          >Larry,
          >when I switched on the power supply on my 3dB first nothing happened.
          >I found JP5 open, soldered it and signals were coming in.
          >there is one USB ground for the SI570 and another ground for the QSD, bandswitching is effected  by optocouplers.
          >However you have to connect these 2 grounds in order to switch on the red LED to show the unit is powered up.
          >QSD power is from USB 5 V via a Mosfet, thus resulting QSD ICs to be powered by 4,4V only.
          >SI570 pin 6 however is powered with 5 V direct from USB. (see datasheet ! )
          >D4 could not be found on board,
          >6 -15V supply is not populated and somewhat unclear.
          >I have asked the producers some questions, no reply so far has been received. QSE would have been nice.
          >Functionality is limited to receive.
          >Gerry, OE6HGG
          >
          >
          >________________________________
          > Von: Larry Dighera <larry@...>
          >An: softrock40@yahoogroups.com; sdr-radio-com@yahoogroups.com
          >Gesendet: 1:41 Sonntag, 1.September 2013
          >Betreff: [softrock40] First Impressions: HF-3dBSDR Receiver
          >
          >First Impressions: HF-3dBSDR Receiver posted here:
          ><http://forum.3dbsdr.com/viewtopic.php?f=2&t=16#p33>
          >
          >




          --
          Angi
          Amatuer Radio Operator
          call sign: KF5ULI
          Trained SKYWARN weather spotter
          SpotterNet weather spotter
          CoCoRaHS weather station AR-SR-6

          FRBG Breeding Services, Specalizing in the problem and hard to breed does, In Arkansas and Missouri
          AI services for Caprine, Cervid, Cattle, Sheep,
          AI Classes in Caprine, In Ar and surrounding states

           
            
        • boydsoftprez
          JP5 is for balanced unbalanced antenna. It is not required for a balanced antenna system this is why we ship them with JP5 un jumpered.. ---In
          Message 4 of 27 , Oct 4, 2013
          • 0 Attachment

             JP5 is for balanced unbalanced antenna. It is not required for a balanced antenna system this is why we ship them with JP5 un jumpered.. 



            ---In softrock40@yahoogroups.com, <gerryhombre007@...> wrote:

            Larry,
            when I switched on the power supply on my 3dB first nothing happened.
            I found JP5 open, soldered it and signals were coming in.
            there is one USB ground for the SI570 and another ground for the QSD, bandswitching is effected  by optocouplers.
            However you have to connect these 2 grounds in order to switch on the red LED to show the unit is powered up.
            QSD power is from USB 5 V via a Mosfet, thus resulting QSD ICs to be powered by 4,4V only.
            SI570 pin 6 however is powered with 5 V direct from USB. (see datasheet ! )
            D4 could not be found on board,
            6 -15V supply is not populated and somewhat unclear.
            I have asked the producers some questions, no reply so far has been received. QSE would have been nice.
            Functionality is limited to receive.
            Gerry, OE6HGG


            Von: Larry Dighera <larry@...>
            An: softrock40@yahoogroups.com; sdr-radio-com@yahoogroups.com
            Gesendet: 1:41 Sonntag, 1.September 2013
            Betreff: [softrock40] First Impressions: HF-3dBSDR Receiver

             
            First Impressions: HF-3dBSDR Receiver posted here:
            <http://forum.3dbsdr.com/viewtopic.php?f=2&t=16#p33>


          • Larry Dighera
            Hi Jim, Yes, the version 1A updated replacement HF-3dBSDR receiver board for the defective one I ordered on August 24, 2013, and returned on September 11, 2013
            Message 5 of 27 , Oct 11, 2013
            • 0 Attachment
              Hi Jim,

              Yes, the version 1A updated replacement HF-3dBSDR receiver board for the
              defective one I ordered on August 24, 2013, and returned on September 11, 2013
              did arrive, and I have made a preliminary test. Without question, this new
              board works significantly better than the original defective one I received.

              Sam Ammons:
              We received your SDR and it is "not right".

              In the interim, while I was waiting for you to ship a functional board, I
              purchased a FiFi SDR receiver with preselector and integrated sound card in an
              aluminum case here for nearly the same price here:
              <http://www.box73.de/product_info.php?products_id=2425&XTCsid=aaa7d4318d1fd3249320963e68491f9f>.

              Best regards,
              Larry



              On 04 Oct 2013 11:59:11 -0700, <boydsoftprez@...> wrote:

              >
              > Hello Larry,
              >
              >Did you get the new board working? Was curious haven't heard anything back from you. The board I shipped you ran on my desk for 2 days and I used it to listen to many stations before we shipped to out to you.
              >
              >J.J. Boyd
              >
              >http://3dbsdr.com
              >
              >---In softrock40@yahoogroups.com, <softrock40@yahoogroups.com> wrote:
              >
              >I would exchange for a new one
              >Angi
              >
              >On Mon, Sep 9, 2013 at 6:00 PM, Larry Dighera <larry@...> wrote:
              >
              >Hello Garry,
              >
              >The information you provided confirms that you have a Rev.A HF-3dBSDR receiver
              >too. Like you, I also found 5V on my Si570. What I want to know is, did yours
              >work like that, with 5V on the Si570? Or did you have to route 3.3 VDC to the
              >Si570 to get it to work?
              >
              >You should find this message I received from 3dB today interesting (below).
              >
              >I don't know if I should go through the trouble of sending mine back for
              >exchange for a Rev.2 board, or just cut and jumper.
              >
              >Thanks for your help.
              >
              >Best regards,
              >Larry
              >
              >
              >============= Begin 3dB message =============================
              >To: Larry@...
              >Subject: Re: HF-3dBSDR Support documents
              >From: Sam Ammons <sam@...>
              >Date: Mon, 9 Sep 2013 17:13:43 -0400
              >
              >
              >I talked with the builder and he said that an error in the schematic is the
              >cause of the improper voltage. This was fixed in revision 2 of the board so
              >I am assuming you have revision 1. We have the next batch of revision 2
              >boards coming in in a week and it will be a day or three to build one. If
              >you like, we can swap it out for free. Just return it to us at the address
              >sent earlier. Your rma number is XX. look on the back of yours and see if
              >you have a serial number sticker. If you dont have a serial number sticker
              >it means you managed to buy a prototype, possibly my own personal sdr. If
              >you do have a serial number I would like to contact the serial numbers
              >close to it to see if they have the same problem. There were 50 Rev 1
              >boards made.
              >
              >
              >The builder says he knew of the over voltage but didnt see any performance
              >problems so he passed the quality check on them and changed the board
              >design. I dont know if a shortened life cycle will be a result of this or
              >if it results in more noise, but I will certainly test a rev 2 board vs a
              >rev 1 board and tell you what I find.
              >
              >
              >Sam
              >
              >
              >On Mon, Sep 9, 2013 at 3:17 PM, Larry Dighera <Larry@...> wrote:
              >
              >
              >>
              >> Hello Sam,
              >>
              >> Thank you for your offer of support, and suggestions regarding SDR
              >> software/driver installation.
              >>
              >> In response to a member of the Softrock40 Yahoo group, I have generated the
              >> information below.
              >>
              >> The cause of the issue I'm experiencing with the HF-3dBSDR receiver may be
              >> related to the 4.76 VDC I measured on pin 6 of the Si570 chip. The Silicon
              >> Labs Si57X data sheet specifies a maximum of 3.63 VDC. This 1.13 voltage
              >> in
              >> excess of the manufacturer's specified maximum represents a 34%
              >> over-voltage.
              >>
              >> Are you able to explain this discrepancy from the HF-3dBSDR schematic?
              >>
              >> Can you issue me an RMA for a replacement board?
              >>
              >> Thank you for your assistance.
              >>
              >> Best regards,
              >> Larry
              >>
              >> =====================================================================
              >> Messages From CFGSR:
              >>
              >> General tab:
              >> Green light in lower left hand corner
              >> "USB AVR Si570 connected V15.14" message at bottom
              >>
              >> USB tab:
              >> USB VID and PID correct
              >> Manufacturer: www.obdev.at
              >> Product: DG8SAQ-I2C (device in Printers and Faxes also)
              >> Serial Number: PE0FKO-0 Box: 0
              >> Auto Connect: checked
              >> DevNum: -1 (becomes '1' when device selected in table)
              >> Table: www.obdev.at/DG8SAQ-I2C/PE0FKO-0 bus-0
              >> \\.\libsub0-0001--0x16c0-0x05dc
              >>
              >> Si570 tab:
              >> i2c addr: 0x55
              >> Freq range: 3 160
              >> Startup: 40.001MHz
              >> VFO: 10.00025 MHz
              >> Smooth: 3500
              >> @VFO: +- 35 KHz
              >> Si570: Grade C
              >> DCO min: 0%
              >> Dco max: 0%
              >> Index: [blank]
              >>
              >> LO tab:
              >> LO: Total:
              >> Multiply: 4
              >> Offset: 0 MHz
              >> LO: DLL
              >> Multiply: 4
              >> Offset: 0 MHz
              >> LO: Firmware
              >> Multiply: 1
              >> Offset: 0
              >> There are three filters (0, 1, 2, and 3)
              >> Filter Band 0: 0 ... 4 MHz
              >> Filter Band 1: 4 ... 8 MHz
              >> Filter Band 2: 8 ... 16 MHz
              >> Filter Band 3: 16 ... > MHz
              >>
              >> Tune tab:
              >> load freq box: unchecked
              >> Requested frequency: 10.000250
              >> mouse wheel: first box: 10, second box: 1 KHz
              >> Set frequency: 40.001000
              >> Si570 output frequency: 40.001000
              >> Band: 2
              >> Filter: 2
              >>
              >> ABPF tab:
              >> Enable filter [ABPF]: Box checked
              >> Manual filter: Box empty
              >> RX Freq SET Freq Calculation Filter
              >> ------- -------- ----------- ------
              >> 0 ... 4 0 ... 16 none 0
              >> 4 ... 8 16 ... 32 none 1
              >> 8 ... 16 32 ... 64 none 2
              >> 16 ... inf 54 ... inf none 3
              >> (in operation filter LEDs do change depending on Freq.)
              >>
              >> Calibrate tab:
              >> Factory startup frequency: 56.32 MHz
              >> Tuned Real Diff
              >> ----- ---- ----
              >> 10.00025 10.00025 0.0 KHz
              >> Bottom of tab: 114.285000 MHz
              >>
              >> Test tab:
              >> Crystal frequency [sic]: 114.285000 MHz
              >> Startup: 40.0001 MHz
              >> LO Calculation: 0-1;0-1;0-1;0-1;
              >> Si570 Reg [7:12] ?? RX Power down ?? (what is that?)
              >> C, 4850:5670,0
              >> Si570 Dividers: Smooth tune 3500 ppm
              >> Si570 RFREQ: blue bar under 4.85 at left end of slider
              >> Si570 frequency [sic]:
              >> Set frequency [sic]: 40.001000 MHz
              >> 3.3V dull-red until Get button pushed, then bright-red
              >> P1/PTT: dull-red
              >> P2/CW: Bright-green
              >> CW2: Bright-green
              >> PTT: grayed-out
              >> Repeat: box unchecked
              >>
              >> Init tab:
              >> Softrock RX V9.0 [BPF]: radio-button selected
              >> Softrock TXRX V6.3: radio-button unselected
              >> Ensemble RX: radio-button unselected
              >> Ensemble RX II VHF (2m): radio-button unselected
              >> Ensemble RX II (4m,6m): radio-button unselected
              >> Ensemble RX II LF/HF(LF): radio-button unselected
              >> Ensemble RX II LF/HF(HF): radio-button unselected
              >> Ensemble RXTX: radio-button unselected
              >> Other: radio-button unselected
              >>
              >> Mobo tab:
              >> TX Filter tab:
              >> all blank. Message at bottom: Not supported in this firmware.
              >> PA Bias tab:
              >> all blank. Message at bottom: Not supported in this firmware.
              >> Status tab:
              >> all blank. Message at bottom: Not supported in this firmware.
              >>
              >> About tab:
              >> Configuration tool for the SoftRock Si570
              >> Version: 2.6, build 602
              >> Created by Fred, pe0fko.
              >> Upper-left "light" gray, lower left light: green
              >>
              >>
              >> Si57X Chip:
              >> Marking: Si570 CAC000141G DIXJZ315+
              >> The 570 designation indicates this is not a member of the programmable
              >> family.
              >> The first 'C' indicates this is a CMOS part with Vdd specified 3.3 VDC.
              >> The 'A' indicates this part temperature stability is 50 ppm.
              >> The 2nd 'C' indicates a frequency range: 10 to 160 MHz [1.2 to 40 MHz]
              >> Voltage measured between pins 3 (GND) and 6 (Vdd) of the Si570 chip: 4.76
              >> VDC(!), not the 3.3 VDC specified on the schematic and data sheet!
              >> THIS MAY BE THE CAUSE OF MY FRUSTRATION!!!!!
              >>
              >> JP1 and JP2 are closed on my HF-3dB SDR.
              >> 3.28 VDC measured across C9 at the output pin 5 of U4.
              >>
              >> While the Si570 doesn't seem to be warm with the higher than maximum
              >> specified
              >> voltage on it, I noted that you suggested that the HF-3dB SDR should be
              >> returned to 3dB for replacement, as the chip life may have been degraded
              >> 50% as
              >> a result of the high Vdd supply voltage.
              >>
              >> I'm CCing 3dB on this message. Hopefully they'll stand behind their new
              >> product.
              >>
              >> Now if I could just get some sort of compensation for the frustration I've
              >> experienced and tens of hours I've wasted....
              >>
              >> Thank you very much for your kind assistance, Alan.
              >>
              >> Best regards,
              >> Larry
              >>
              >>
              >>
              >>
              >>
              >> On Mon, 9 Sep 2013 12:12:25 -0400, Sam Ammons <sam@...> wrote:
              >>
              >> >The support documents are on the 3dbsdr.com web site, I can also email
              >> the
              >> >installation guide that is there to you if you cant find it on the
              >> website.
              >> >We cant learn every program out there because they conflict if installed
              >> on
              >> >the same machine, try removing all the sdr software and then reinstall
              >> >hdsdr. Then read the installation instructions again, specifically the
              >> >portion about the DLL installation with HDSDR. If it does not tune, the
              >> DLL
              >> >is not installed as the installation guide details.
              >> >
              >> >I personally use HDSDR and wrote the installation guide for that so you
              >> >should be able to get it going, or have a friend with a second opinion
              >> read
              >> >the guide. Sometimes a second viewpoint helps.
              >> >
              >> >We are not setup for software support here but if you find an innacuracy
              >> in
              >> >the installation guide we need to know about it.
              >> >
              >> >Sincerely,
              >>
              >
              >
              >--
              >Sam Ammons
              >
              >
              >=========================== End of 3dB Message ===============================
              >
              >
              >On Sun, 1 Sep 2013 04:16:38 +0100 (BST), Gerry Huss <gerryhombre007@...>
              >wrote:
              >
              >
              >>Larry,
              >>when I switched on the power supply on my 3dB first nothing happened.
              >>I found JP5 open, soldered it and signals were coming in.
              >>there is one USB ground for the SI570 and another ground for the QSD, bandswitching is effected by optocouplers.
              >>However you have to connect these 2 grounds in order to switch on the red LED to show the unit is powered up.
              >>QSD power is from USB 5 V via a Mosfet, thus resulting QSD ICs to be powered by 4,4V only.
              >>SI570 pin 6 however is powered with 5 V direct from USB. (see datasheet ! )
              >>D4 could not be found on board,
              >>6 -15V supply is not populated and somewhat unclear.
              >>I have asked the producers some questions, no reply so far has been received. QSE would have been nice.
              >>Functionality is limited to receive.
              >>Gerry, OE6HGG
              >>
              >>
              >>________________________________
              >> Von: Larry Dighera <larry@...>
              >>An: softrock40@yahoogroups.com; sdr-radio-com@yahoogroups.com
              >>Gesendet: 1:41 Sonntag, 1.September 2013
              >>Betreff: [softrock40] First Impressions: HF-3dBSDR Receiver
              >>
              >>First Impressions: HF-3dBSDR Receiver posted here:
              >><http://forum.3dbsdr.com/viewtopic.php?f=2&t=16#p33>
              >>
              >>
              >
              >
              >
              >
              >
              >
              >--
              >AngiAmatuer Radio Operatorcall sign: KF5ULITrained SKYWARN weather spotterSpotterNet weather spotter CoCoRaHS weather station AR-SR-6
              >FRBG Breeding Services, Specalizing in the problem and hard to breed does, In Arkansas and MissouriAI services for Caprine, Cervid, Cattle, Sheep, AI Classes in Caprine, In Ar and surrounding states
              >
              >
              >
              >
            • Gerry Huss
              Larry, I also use a FiFi with Bonito Spectroscope, the best I have seen so far, check the bonito FiFi software, 73, Gerry, OE6HGG
              Message 6 of 27 , Oct 11, 2013
              • 0 Attachment
                Larry,
                I also use a FiFi with Bonito Spectroscope, the best I have seen so far, check the bonito FiFi software,
                73, Gerry, OE6HGG


                Von: Larry Dighera <larry@...>
                An: softrock40@yahoogroups.com
                Gesendet: 17:00 Freitag, 11.Oktober 2013
                Betreff: Re: [softrock40] First Impressions: HF-3dBSDR Receiver

                 

                Hi Jim,

                Yes, the version 1A updated replacement HF-3dBSDR receiver board for the
                defective one I ordered on August 24, 2013, and returned on September 11, 2013
                did arrive, and I have made a preliminary test. Without question, this new
                board works significantly better than the original defective one I received.

                Sam Ammons:
                We received your SDR and it is "not right".

                In the interim, while I was waiting for you to ship a functional board, I
                purchased a FiFi SDR receiver with preselector and integrated sound card in an
                aluminum case here for nearly the same price here:
                <http://www.box73.de/product_info.php?products_id=2425&XTCsid=aaa7d4318d1fd3249320963e68491f9f>.

                Best regards,
                Larry

                On 04 Oct 2013 11:59:11 -0700, <boydsoftprez@...> wrote:

                >
                > Hello Larry,
                >
                >Did you get the new board working? Was curious haven't heard anything back from you. The board I shipped you ran on my desk for 2 days and I used it to listen to many stations before we shipped to out to you.
                >
                >J.J. Boyd
                >
                >http://3dbsdr.com
                >
                >---In softrock40@yahoogroups.com, <softrock40@yahoogroups.com> wrote:
                >
                >I would exchange for a new one
                >Angi
                >
                >On Mon, Sep 9, 2013 at 6:00 PM, Larry Dighera <larry@...> wrote:
                >
                >Hello Garry,
                >
                >The information you provided confirms that you have a Rev.A HF-3dBSDR receiver
                >too. Like you, I also found 5V on my Si570. What I want to know is, did yours
                >work like that, with 5V on the Si570? Or did you have to route 3.3 VDC to the
                >Si570 to get it to work?
                >
                >You should find this message I received from 3dB today interesting (below).
                >
                >I don't know if I should go through the trouble of sending mine back for
                >exchange for a Rev.2 board, or just cut and jumper.
                >
                >Thanks for your help.
                >
                >Best regards,
                >Larry
                >
                >
                >============= Begin 3dB message =============================
                >To: Larry@...
                >Subject: Re: HF-3dBSDR Support documents
                >From: Sam Ammons <sam@...>
                >Date: Mon, 9 Sep 2013 17:13:43 -0400
                >
                >
                >I talked with the builder and he said that an error in the schematic is the
                >cause of the improper voltage. This was fixed in revision 2 of the board so
                >I am assuming you have revision 1. We have the next batch of revision 2
                >boards coming in in a week and it will be a day or three to build one. If
                >you like, we can swap it out for free. Just return it to us at the address
                >sent earlier. Your rma number is XX. look on the back of yours and see if
                >you have a serial number sticker. If you dont have a serial number sticker
                >it means you managed to buy a prototype, possibly my own personal sdr. If
                >you do have a serial number I would like to contact the serial numbers
                >close to it to see if they have the same problem. There were 50 Rev 1
                >boards made.
                >
                >
                >The builder says he knew of the over voltage but didnt see any performance
                >problems so he passed the quality check on them and changed the board
                >design. I dont know if a shortened life cycle will be a result of this or
                >if it results in more noise, but I will certainly test a rev 2 board vs a
                >rev 1 board and tell you what I find.
                >
                >
                >Sam
                >
                >
                >On Mon, Sep 9, 2013 at 3:17 PM, Larry Dighera <Larry@...> wrote:
                >
                >
                >>
                >> Hello Sam,
                >>
                >> Thank you for your offer of support, and suggestions regarding SDR
                >> software/driver installation.
                >>
                >> In response to a member of the Softrock40 Yahoo group, I have generated the
                >> information below.
                >>
                >> The cause of the issue I'm experiencing with the HF-3dBSDR receiver may be
                >> related to the 4.76 VDC I measured on pin 6 of the Si570 chip. The Silicon
                >> Labs Si57X data sheet specifies a maximum of 3.63 VDC. This 1.13 voltage
                >> in
                >> excess of the manufacturer's specified maximum represents a 34%
                >> over-voltage.
                >>
                >> Are you able to explain this discrepancy from the HF-3dBSDR schematic?
                >>
                >> Can you issue me an RMA for a replacement board?
                >>
                >> Thank you for your assistance.
                >>
                >> Best regards,
                >> Larry
                >>
                >> =====================================================================
                >> Messages From CFGSR:
                >>
                >> General tab:
                >> Green light in lower left hand corner
                >> "USB AVR Si570 connected V15.14" message at bottom
                >>
                >> USB tab:
                >> USB VID and PID correct
                >> Manufacturer: www.obdev.at
                >> Product: DG8SAQ-I2C (device in Printers and Faxes also)
                >> Serial Number: PE0FKO-0 Box: 0
                >> Auto Connect: checked
                >> DevNum: -1 (becomes '1' when device selected in table)
                >> Table: www.obdev.at/DG8SAQ-I2C/PE0FKO-0 bus-0
                >> \\.\libsub0-0001--0x16c0-0x05dc
                >>
                >> Si570 tab:
                >> i2c addr: 0x55
                >> Freq range: 3 160
                >> Startup: 40.001MHz
                >> VFO: 10.00025 MHz
                >> Smooth: 3500
                >> @VFO: +- 35 KHz
                >> Si570: Grade C
                >> DCO min: 0%
                >> Dco max: 0%
                >> Index: [blank]
                >>
                >> LO tab:
                >> LO: Total:
                >> Multiply: 4
                >> Offset: 0 MHz
                >> LO: DLL
                >> Multiply: 4
                >> Offset: 0 MHz
                >> LO: Firmware
                >> Multiply: 1
                >> Offset: 0
                >> There are three filters (0, 1, 2, and 3)
                >> Filter Band 0: 0 ... 4 MHz
                >> Filter Band 1: 4 ... 8 MHz
                >> Filter Band 2: 8 ... 16 MHz
                >> Filter Band 3: 16 ... > MHz
                >>
                >> Tune tab:
                >> load freq box: unchecked
                >> Requested frequency: 10.000250
                >> mouse wheel: first box: 10, second box: 1 KHz
                >> Set frequency: 40.001000
                >> Si570 output frequency: 40.001000
                >> Band: 2
                >> Filter: 2
                >>
                >> ABPF tab:
                >> Enable filter [ABPF]: Box checked
                >> Manual filter: Box empty
                >> RX Freq SET Freq Calculation Filter
                >> ------- -------- ----------- ------
                >> 0 ... 4 0 ... 16 none 0
                >> 4 ... 8 16 ... 32 none 1
                >> 8 ... 16 32 ... 64 none 2
                >> 16 ... inf 54 ... inf none 3
                >> (in operation filter LEDs do change depending on Freq.)
                >>
                >> Calibrate tab:
                >> Factory startup frequency: 56.32 MHz
                >> Tuned Real Diff
                >> ----- ---- ----
                >> 10.00025 10.00025 0.0 KHz
                >> Bottom of tab: 114.285000 MHz
                >>
                >> Test tab:
                >> Crystal frequency [sic]: 114.285000 MHz
                >> Startup: 40.0001 MHz
                >> LO Calculation: 0-1;0-1;0-1;0-1;
                >> Si570 Reg [7:12] ?? RX Power down ?? (what is that?)
                >> C, 4850:5670,0
                >> Si570 Dividers: Smooth tune 3500 ppm
                >> Si570 RFREQ: blue bar under 4.85 at left end of slider
                >> Si570 frequency [sic]:
                >> Set frequency [sic]: 40.001000 MHz
                >> 3.3V dull-red until Get button pushed, then bright-red
                >> P1/PTT: dull-red
                >> P2/CW: Bright-green
                >> CW2: Bright-green
                >> PTT: grayed-out
                >> Repeat: box unchecked
                >>
                >> Init tab:
                >> Softrock RX V9.0 [BPF]: radio-button selected
                >> Softrock TXRX V6.3: radio-button unselected
                >> Ensemble RX: radio-button unselected
                >> Ensemble RX II VHF (2m): radio-button unselected
                >> Ensemble RX II (4m,6m): radio-button unselected
                >> Ensemble RX II LF/HF(LF): radio-button unselected
                >> Ensemble RX II LF/HF(HF): radio-button unselected
                >> Ensemble RXTX: radio-button unselected
                >> Other: radio-button unselected
                >>
                >> Mobo tab:
                >> TX Filter tab:
                >> all blank. Message at bottom: Not supported in this firmware.
                >> PA Bias tab:
                >> all blank. Message at bottom: Not supported in this firmware.
                >> Status tab:
                >> all blank. Message at bottom: Not supported in this firmware.
                >>
                >> About tab:
                >> Configuration tool for the SoftRock Si570
                >> Version: 2.6, build 602
                >> Created by Fred, pe0fko.
                >> Upper-left "light" gray, lower left light: green
                >>
                >>
                >> Si57X Chip:
                >> Marking: Si570 CAC000141G DIXJZ315+
                >> The 570 designation indicates this is not a member of the programmable
                >> family.
                >> The first 'C' indicates this is a CMOS part with Vdd specified 3.3 VDC.
                >> The 'A' indicates this part temperature stability is 50 ppm.
                >> The 2nd 'C' indicates a frequency range: 10 to 160 MHz [1.2 to 40 MHz]
                >> Voltage measured between pins 3 (GND) and 6 (Vdd) of the Si570 chip: 4.76
                >> VDC(!), not the 3.3 VDC specified on the schematic and data sheet!
                >> THIS MAY BE THE CAUSE OF MY FRUSTRATION!!!!!
                >>
                >> JP1 and JP2 are closed on my HF-3dB SDR.
                >> 3.28 VDC measured across C9 at the output pin 5 of U4.
                >>
                >> While the Si570 doesn't seem to be warm with the higher than maximum
                >> specified
                >> voltage on it, I noted that you suggested that the HF-3dB SDR should be
                >> returned to 3dB for replacement, as the chip life may have been degraded
                >> 50% as
                >> a result of the high Vdd supply voltage.
                >>
                >> I'm CCing 3dB on this message. Hopefully they'll stand behind their new
                >> product.
                >>
                >> Now if I could just get some sort of compensation for the frustration I've
                >> experienced and tens of hours I've wasted....
                >>
                >> Thank you very much for your kind assistance, Alan.
                >>
                >> Best regards,
                >> Larry
                >>
                >>
                >>
                >>
                >>
                >> On Mon, 9 Sep 2013 12:12:25 -0400, Sam Ammons <sam@...> wrote:
                >>
                >> >The support documents are on the 3dbsdr.com web site, I can also email
                >> the
                >> >installation guide that is there to you if you cant find it on the
                >> website.
                >> >We cant learn every program out there because they conflict if installed
                >> on
                >> >the same machine, try removing all the sdr software and then reinstall
                >> >hdsdr. Then read the installation instructions again, specifically the
                >> >portion about the DLL installation with HDSDR. If it does not tune, the
                >> DLL
                >> >is not installed as the installation guide details.
                >> >
                >> >I personally use HDSDR and wrote the installation guide for that so you
                >> >should be able to get it going, or have a friend with a second opinion
                >> read
                >> >the guide. Sometimes a second viewpoint helps.
                >> >
                >> >We are not setup for software support here but if you find an innacuracy
                >> in
                >> >the installation guide we need to know about it.
                >> >
                >> >Sincerely,
                >>
                >
                >
                >--
                >Sam Ammons
                >
                >
                >=========================== End of 3dB Message ===============================
                >
                >
                >On Sun, 1 Sep 2013 04:16:38 +0100 (BST), Gerry Huss <gerryhombre007@...>
                >wrote:
                >
                >
                >>Larry,
                >>when I switched on the power supply on my 3dB first nothing happened.
                >>I found JP5 open, soldered it and signals were coming in.
                >>there is one USB ground for the SI570 and another ground for the QSD, bandswitching is effected by optocouplers.
                >>However you have to connect these 2 grounds in order to switch on the red LED to show the unit is powered up.
                >>QSD power is from USB 5 V via a Mosfet, thus resulting QSD ICs to be powered by 4,4V only.
                >>SI570 pin 6 however is powered with 5 V direct from USB. (see datasheet ! )
                >>D4 could not be found on board,
                >>6 -15V supply is not populated and somewhat unclear.
                >>I have asked the producers some questions, no reply so far has been received. QSE would have been nice.
                >>Functionality is limited to receive.
                >>Gerry, OE6HGG
                >>
                >>
                >>________________________________
                >> Von: Larry Dighera <larry@...>
                >>An: softrock40@yahoogroups.com; sdr-radio-com@yahoogroups.com
                >>Gesendet: 1:41 Sonntag, 1.September 2013
                >>Betreff: [softrock40] First Impressions: HF-3dBSDR Receiver
                >>
                >>First Impressions: HF-3dBSDR Receiver posted here:
                >><http://forum.3dbsdr.com/viewtopic.php?f=2&t=16#p33>
                >>
                >>
                >
                >
                >
                >
                >
                >
                >--
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                >
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