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Re: Installing Softrock Ensemble II and Rocky 3.6

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  • schillingtrain@yahoo.com
    Roger that. Thank you for the write up. The system is up and running, and it is great fun. I especially appreciate the lesson about the local oscillator.
    Message 1 of 39 , Nov 27, 2010
    • 0 Attachment
      Roger that.

      Thank you for the write up. The system is up and running, and it is great fun.

      I especially appreciate the lesson about the local oscillator.

      Cheers

      --- In softrock40@yahoogroups.com, "R. R. (Robby) Robson" <rrrobson@...> wrote:
      >
      > It appears that we may be assuming more SDR background on your part than you
      > have.
      >
      > Do what the guys are suggesting about getting your software set up first.
      >
      > Once you have done that, when you get back to Winrad, please consider the
      > following:
      >
      > (1) The "low" you are referring to is probably Winrad's "LO" (for Local
      > Oscillator. That setting establishes the "center frequency" of the display.
      >
      > (2) The "TUNE" setting. This allows you to tune to a frequency that is
      > either above or below the "LO" ("center") frequency.
      >
      > (3) The bandwidth around the selected "center frequency" is determined by
      > your sound card's sampling rate. A 48 kHz sampling rate will give you a
      > tuning range of approximately +/- 24 kHz centered on the "center
      > frequency". The LO setting causes the Si570 Local Oscillator to produce an
      > output that causes the Ensemble RX to donw-convert a 48 kHz (or 96 kHz or
      > 192 kHz, depending upon your soundcard) chunk of spectrum centered on the LO
      > frequency value.
      >
      > (4) Winrad uses the "LO" setting to calibrate the gradations in the spectrum
      > display, producing values that represent offsets from the center ("LO")
      > frequency. Thus, assuming you have a 48 kHz soundcard, if the "LO" is set
      > to 7.200 MHz, then the display will show that as the center frequency and
      > will display 7.21, 7.215, 7.220, etc. to the right of the center frequency,
      > and 7.190, 7.185, 7.180, ... to the left of the center frequency.
      >
      > (4) The "center frequency" represents zero in the midpoint of the "chunk"
      > of downconverted spectrum; this zero point is "invisible" to the SDR program
      > and the program usually kicks out a sharp peak at the center frequency. If
      > there were any signals at that exact frequency, the SDR program would not be
      > able to decode them. Thus, if you wanted to tune into a station at 7.056
      > MHz, your center frequency must NOT be exactly 7.056 MHz; you would set it
      > so that the center frequency is a few kHz either side of the desired signal.
      >
      > (5) You may also see some spikes at either end of the spectrum. These are
      > usually artifacts of the sound card.
      >
      > The process is, then, set your "LO" to a center frequency that is (1) able
      > to return a "chunk" of spectru that contains the signals you want to see;
      > and (2) Is not exactly on any desired listening frequency (since the
      > software would never get it. Then, (3) Use the "TUNE" to tun around within
      > the bounds of that "chunk" of spectrum.
      >
      > It may help to review the Theory section of my build
      > notes<http://www.wb5rvz.com/sdr/ensemble_rx_ii/index.htm#theory>
      > .
      >
      >
      >
      >
      > On Fri, Nov 26, 2010 at 4:25 PM, <schillingtrain@...> wrote:
      >
      > >
      > >
      > > Roger that. Thank You
      > >
      > >
      > > --- In softrock40@yahoogroups.com <softrock40%40yahoogroups.com>, "g8voip"
      > > <g8voi.reeves59@> wrote:
      > > >
      > > >
      > > > Hi,
      > > >
      > > > Please download a copy of the 'Firmware User Guide' from:
      > > >
      > > > http://home.ict.nl/~fredkrom/pe0fko/g8voi/
      > > >
      > > > and follow the instructions on configuring hte program. It does not
      > > matter which version of Winrad, WinradHD, WinradF or WRPlus you use.
      > > >
      > > > You must download a copy of Fred Pe0FKO's supporting dll file called
      > > 'ExtIO_Si570.dll' and put a copy in the folder you are running Winrad from
      > > in order to have USB control of the frequency.
      > > >
      > > > You can get the dll file from:
      > > >
      > > > http://home.ict.nl/~fredkrom/pe0fko/ExtIO_Si570/
      > > >
      > > > 73, Bob G8VOI
      > > >
      > > > --- In softrock40@yahoogroups.com <softrock40%40yahoogroups.com>,
      > > schillingtrain@ wrote:
      > > > >
      > > > > I'm having trouble tuning WINRad.
      > > > >
      > > > > When it first opens up, the spectrum is confined to a window between
      > > 6,976 to 7024 kHz. In that window, I can easily tune to 4 or 5 Morse code
      > > broadcasts. Once in a while, a Ham broadcast appears. Great fun.
      > > > >
      > > > > So, now I try to tune into another band altogether.
      > > > >
      > > > > At the top of the window are two places where I can use the mouse to
      > > tune up and down. One place says "tune" and the other says "Low". When I use
      > > the mouse to adjust any of the two, the waterfall doesn't change at all.
      > > So...let's say I click on the spectrum and tune into a Ham station at, say
      > > 7,000 kHz. I then click on "Low" and change that number to, lets say,
      > > 15,000kHz. The same Ham station comes in loud and clear, but, when clicking
      > > on its peak in the spectrum, the marker adjacent to the click point says the
      > > frequency for that station is at an entirely different frequency than
      > > before.
      > > > >
      > > > > For the life of me I can't figure out what I'm doing wrong.
      > > > >
      > > > > --- In softrock40@yahoogroups.com <softrock40%40yahoogroups.com>,
      > > schillingtrain@ wrote:
      > > > > >
      > > > > >
      > > > > > I'm inching along. It turns out I had the polarity reversed on the
      > > power supply to Softrock. WINRAD seems to be functioning, except, no matter
      > > which frequency I tune to, the waterflow pattern looks basically the same
      > > with two main features all the time: a solid blue streak right down the
      > > middle (the spectrum shows a sharp minimum there) and, just to the left of
      > > that a red/yellow pattern corresponding to a little peak above background.
      > > > > >
      > > > > > The soundcard in WINRad seems to be selected okay: "Microphone / line
      > > in".
      > > > > >
      > > > > > The PC is a Dell Studio running on Vista.
      > > > > >
      > > > > > I'm getting exasperated.
      > > > > >
      > > > > > --- In softrock40@yahoogroups.com <softrock40%40yahoogroups.com>,
      > > "Alan" <alan4alan@> wrote:
      > > > > > >
      > > > > > >
      > > > > > > ----- Original Message -----
      > > > > > > From:
      > > > > > > Subject: [softrock40] Re: Installing Softrock Ensemble II and Rocky
      > > 3.6
      > > > > > >
      > > > > > >
      > > > > > >
      > > > > > > >
      > > > > > > > My PC has a "mic in" jack and two headphone jacks. I hear what
      > > you say
      > > > > > > > about the microphone input possibly being mono, but I cant find
      > > any other
      > > > > > > > jack that says "line in".
      > > > > > > >
      > > > > > >
      > > > > > > What PC is it? maybe someone can help.
      > > > > > > You are obviously not getting the mixer settings correct, even a
      > > mono mic
      > > > > > > input should show something.
      > > > > > > What do the SDR programs show in their soundcard selection?
      > > > > > >
      > > > > > > 73 Alan G4ZFQ
      > > > > > >
      > > > > >
      > > > >
      > > >
      > >
      > >
      > >
      >
      >
      >
      > --
      > Cheers,
      > Robby
      >
      > Richard R. (Robby) Robson
      > Amateur Radio Station WB5RVZ
      > www.wb5rvz.com
      >
    • schillingtrain@yahoo.com
      Roger that. Thank you for the write up. The system is up and running, and it is great fun. I especially appreciate the lesson about the local oscillator.
      Message 39 of 39 , Nov 27, 2010
      • 0 Attachment
        Roger that.

        Thank you for the write up. The system is up and running, and it is great fun.

        I especially appreciate the lesson about the local oscillator.

        Cheers

        --- In softrock40@yahoogroups.com, "R. R. (Robby) Robson" <rrrobson@...> wrote:
        >
        > It appears that we may be assuming more SDR background on your part than you
        > have.
        >
        > Do what the guys are suggesting about getting your software set up first.
        >
        > Once you have done that, when you get back to Winrad, please consider the
        > following:
        >
        > (1) The "low" you are referring to is probably Winrad's "LO" (for Local
        > Oscillator. That setting establishes the "center frequency" of the display.
        >
        > (2) The "TUNE" setting. This allows you to tune to a frequency that is
        > either above or below the "LO" ("center") frequency.
        >
        > (3) The bandwidth around the selected "center frequency" is determined by
        > your sound card's sampling rate. A 48 kHz sampling rate will give you a
        > tuning range of approximately +/- 24 kHz centered on the "center
        > frequency". The LO setting causes the Si570 Local Oscillator to produce an
        > output that causes the Ensemble RX to donw-convert a 48 kHz (or 96 kHz or
        > 192 kHz, depending upon your soundcard) chunk of spectrum centered on the LO
        > frequency value.
        >
        > (4) Winrad uses the "LO" setting to calibrate the gradations in the spectrum
        > display, producing values that represent offsets from the center ("LO")
        > frequency. Thus, assuming you have a 48 kHz soundcard, if the "LO" is set
        > to 7.200 MHz, then the display will show that as the center frequency and
        > will display 7.21, 7.215, 7.220, etc. to the right of the center frequency,
        > and 7.190, 7.185, 7.180, ... to the left of the center frequency.
        >
        > (4) The "center frequency" represents zero in the midpoint of the "chunk"
        > of downconverted spectrum; this zero point is "invisible" to the SDR program
        > and the program usually kicks out a sharp peak at the center frequency. If
        > there were any signals at that exact frequency, the SDR program would not be
        > able to decode them. Thus, if you wanted to tune into a station at 7.056
        > MHz, your center frequency must NOT be exactly 7.056 MHz; you would set it
        > so that the center frequency is a few kHz either side of the desired signal.
        >
        > (5) You may also see some spikes at either end of the spectrum. These are
        > usually artifacts of the sound card.
        >
        > The process is, then, set your "LO" to a center frequency that is (1) able
        > to return a "chunk" of spectru that contains the signals you want to see;
        > and (2) Is not exactly on any desired listening frequency (since the
        > software would never get it. Then, (3) Use the "TUNE" to tun around within
        > the bounds of that "chunk" of spectrum.
        >
        > It may help to review the Theory section of my build
        > notes<http://www.wb5rvz.com/sdr/ensemble_rx_ii/index.htm#theory>
        > .
        >
        >
        >
        >
        > On Fri, Nov 26, 2010 at 4:25 PM, <schillingtrain@...> wrote:
        >
        > >
        > >
        > > Roger that. Thank You
        > >
        > >
        > > --- In softrock40@yahoogroups.com <softrock40%40yahoogroups.com>, "g8voip"
        > > <g8voi.reeves59@> wrote:
        > > >
        > > >
        > > > Hi,
        > > >
        > > > Please download a copy of the 'Firmware User Guide' from:
        > > >
        > > > http://home.ict.nl/~fredkrom/pe0fko/g8voi/
        > > >
        > > > and follow the instructions on configuring hte program. It does not
        > > matter which version of Winrad, WinradHD, WinradF or WRPlus you use.
        > > >
        > > > You must download a copy of Fred Pe0FKO's supporting dll file called
        > > 'ExtIO_Si570.dll' and put a copy in the folder you are running Winrad from
        > > in order to have USB control of the frequency.
        > > >
        > > > You can get the dll file from:
        > > >
        > > > http://home.ict.nl/~fredkrom/pe0fko/ExtIO_Si570/
        > > >
        > > > 73, Bob G8VOI
        > > >
        > > > --- In softrock40@yahoogroups.com <softrock40%40yahoogroups.com>,
        > > schillingtrain@ wrote:
        > > > >
        > > > > I'm having trouble tuning WINRad.
        > > > >
        > > > > When it first opens up, the spectrum is confined to a window between
        > > 6,976 to 7024 kHz. In that window, I can easily tune to 4 or 5 Morse code
        > > broadcasts. Once in a while, a Ham broadcast appears. Great fun.
        > > > >
        > > > > So, now I try to tune into another band altogether.
        > > > >
        > > > > At the top of the window are two places where I can use the mouse to
        > > tune up and down. One place says "tune" and the other says "Low". When I use
        > > the mouse to adjust any of the two, the waterfall doesn't change at all.
        > > So...let's say I click on the spectrum and tune into a Ham station at, say
        > > 7,000 kHz. I then click on "Low" and change that number to, lets say,
        > > 15,000kHz. The same Ham station comes in loud and clear, but, when clicking
        > > on its peak in the spectrum, the marker adjacent to the click point says the
        > > frequency for that station is at an entirely different frequency than
        > > before.
        > > > >
        > > > > For the life of me I can't figure out what I'm doing wrong.
        > > > >
        > > > > --- In softrock40@yahoogroups.com <softrock40%40yahoogroups.com>,
        > > schillingtrain@ wrote:
        > > > > >
        > > > > >
        > > > > > I'm inching along. It turns out I had the polarity reversed on the
        > > power supply to Softrock. WINRAD seems to be functioning, except, no matter
        > > which frequency I tune to, the waterflow pattern looks basically the same
        > > with two main features all the time: a solid blue streak right down the
        > > middle (the spectrum shows a sharp minimum there) and, just to the left of
        > > that a red/yellow pattern corresponding to a little peak above background.
        > > > > >
        > > > > > The soundcard in WINRad seems to be selected okay: "Microphone / line
        > > in".
        > > > > >
        > > > > > The PC is a Dell Studio running on Vista.
        > > > > >
        > > > > > I'm getting exasperated.
        > > > > >
        > > > > > --- In softrock40@yahoogroups.com <softrock40%40yahoogroups.com>,
        > > "Alan" <alan4alan@> wrote:
        > > > > > >
        > > > > > >
        > > > > > > ----- Original Message -----
        > > > > > > From:
        > > > > > > Subject: [softrock40] Re: Installing Softrock Ensemble II and Rocky
        > > 3.6
        > > > > > >
        > > > > > >
        > > > > > >
        > > > > > > >
        > > > > > > > My PC has a "mic in" jack and two headphone jacks. I hear what
        > > you say
        > > > > > > > about the microphone input possibly being mono, but I cant find
        > > any other
        > > > > > > > jack that says "line in".
        > > > > > > >
        > > > > > >
        > > > > > > What PC is it? maybe someone can help.
        > > > > > > You are obviously not getting the mixer settings correct, even a
        > > mono mic
        > > > > > > input should show something.
        > > > > > > What do the SDR programs show in their soundcard selection?
        > > > > > >
        > > > > > > 73 Alan G4ZFQ
        > > > > > >
        > > > > >
        > > > >
        > > >
        > >
        > >
        > >
        >
        >
        >
        > --
        > Cheers,
        > Robby
        >
        > Richard R. (Robby) Robson
        > Amateur Radio Station WB5RVZ
        > www.wb5rvz.com
        >
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