Mike Are you sure on the +20 dBm intercept. At about +17-18 dBm the mixer saturates and starts putting out 5 V P-P square waves. +20 dBm at this same point...
72325
FRANCIS CARCIA
wa1gfz
Feb 19, 2013 6:40 pm
I measured just over 100db dynamic range with rock 4 interfaced to HPSDR Janus. I think I reduced the gain of the op amps. (MDS = NF + 3dB delivered audio...
72326
KF4BQ
mikecol2
Feb 19, 2013 9:43 pm
... Hi Warren, Yes, I am sure on the +20dBm IP3. This is a calculated value based on the 2 tone input levels and the resulting IMD products. You normally...
72327
Angus
angu57oung
Feb 20, 2013 1:58 am
I have a similar problem to this guy, however I am not reading any current anywhere. My voltages look good: 11.6V at D1 and 5V at R11. I am running a power...
72328
max4object
Feb 20, 2013 4:26 am
إذا كنت تخاف من الارتفعات، ننصحك بأن لا تدخل ! <http://mt2tm.com/wp/if-you-are-afraid-of-heights-do-not-look/> If you are...
72329
Alan
alanzfq
Feb 20, 2013 6:16 am
... Subject: [softrock40] Re: Softrock Lite II - Power Supply Test Fail ... If you have 5V it must be taking current. Only a few mA, but a test meter should be...
72330
g3vnc
Feb 20, 2013 3:48 pm
... Thank you Mike. Do you think that using the EMU1212M you were seeing the noise floor of the Ensemble Rx? I guess if its a 24 bit card then you should do. ...
72331
Nick Norman
nick_norman2002
Feb 20, 2013 3:54 pm
... OK all, A follow up: The original Si570 was broken The replacement is 100%, Finally got round to finished the assembly and it works in RX mode - not tried...
72332
George Boudreau
grboudreau2000
Feb 20, 2013 5:52 pm
http://www.montessorieaglesinternational.com/qaw/k.ujo?96m2agjrd5l George Boudreau 2/20/2013 6:52:11 PM siyy jwa f glghhk...
72333
Jasmine Strong
h_e_r_o_i_c
Feb 20, 2013 6:04 pm
... You don't have to use Windows! I use a Mac exclusively for my SoftRock, it works perfectly with DSP Radio once the calibration has been set up (for which...
72334
Robert Bajuk
s57aw
Feb 20, 2013 7:58 pm
Hi, For sale: Softrock Ensemble RX II inside the KM5H enclosure, Softrock_40_r (built for 40m), Softrock Ensemble 2m I had this kit built & tested by myself,...
72335
g1ivg
Feb 20, 2013 8:22 pm
Help!!! I have been using my Softrock Ensemble RXTX successfully for over a year and have made many contacts on SSB using PowerSDR. However over the last few...
72336
Alan
alanzfq
Feb 20, 2013 8:47 pm
... Subject: [softrock40] WSPR TX problem on Ensemble RXTX with Delta 44 ** Help ** ... Colin I do not understand this bit ... WSPR uses no Line In. Well, just...
72337
jejesson
Feb 20, 2013 9:06 pm
Are you sync'ing time to the network clock? WSPR transmit is fussy as far as being within a second or two... otherwise the errors are excessive. Joe...
72338
g1ivg
Feb 20, 2013 9:24 pm
Hi Joe, Yes I use Dimension 4 v5.3 to sync the PC clock. The WSPR 2.1 software goes into TX (Yellow TX box on bottom right of screen) but no RF is...
72339
John Williams
jswillms
Feb 20, 2013 9:35 pm
Are you running direct I/Q version or using PSDR with VAC? John ... -- John Williams KE5SSH - ham since 2007 WQKA523 - GMRS for family use on the farm...
72340
g1ivg
Feb 20, 2013 9:45 pm
Alan, Sorry Alan, I meant the Line Out (it's been a long day!!!) My PC has the Delta 44 in it. I then use one of Tony's small Delta 44 Interface boards where...
72341
g1ivg
Feb 20, 2013 9:49 pm
Yes, I have also set USB CAT for PTT Regards Colin G1IVG...
72342
Pascal
pascalv29
Feb 20, 2013 9:54 pm
Nice job, Ed, we wait for your files 73/Pascal...
72343
John Williams
jswillms
Feb 20, 2013 10:28 pm
Are you frequency agile? I.E. are you able to receive on multiple bands. Can you put a meter on S12V and see if the transmitter is actually being set to xmit?...
72344
warrenallgyer
Feb 20, 2013 11:05 pm
Hi Colin I find when I start WSPR I often must de-select then re-select the band that I desire, even if it is sitting on the proper band at startup. Similarly,...
72345
KQ8M
Feb 20, 2013 11:36 pm
Warren, Unless you set the SI570 to default to the frequency you start WSPR on then it goes to the 570 default. WSPR Does not send the frequency to the...
72346
dljones60
Feb 21, 2013 1:24 am
I just ran into this thread again and was wondering if there had been any progress. For what it's worth, I'm more in favor of 6/4/2 meter version of the...
72347
Jerry Haigwood
w5jhjerry
Feb 21, 2013 4:18 am
Hi All, I am just about finished building my Ensemble II RX. I am having trouble with the USB connector. It appears to be very intermittent. I can wiggle it...
72348
Alan
alanzfq
Feb 21, 2013 6:12 am
... Subject: [softrock40] USB Connector ... Jerry, I do not think this is a common fault. If your cable and solder joints are good then maybe you do have a bad...
72349
Alan
alanzfq
Feb 21, 2013 6:12 am
... From: "warren Subject: [softrock40] Re: WSPR TX problem on Ensemble RXTX with Delta 44 ** Help ** ... Yes, there are two ways of looking at this. Joe...
72350
Pascal
pascalv29
Feb 21, 2013 9:33 am
A common version for 2 or more bands would be great also ! 73/Pascal...
72351
Jerry Haigwood
w5jhjerry
Feb 21, 2013 4:32 pm
Alan, I found my jeweler's screw drivers and using the smallest one, have tried bending the contacts on the connector. It has temporarily fixed the ...
72352
g3vnc
Feb 21, 2013 4:36 pm
Just did some careful measurements of the 2 Tone Dynamic Range of my Softrock Ensemble Rx and Delta 44 sound card. Used pairs of 10dB and 20db pads at the...
72353
chris
oz1bxn
Feb 21, 2013 10:54 pm
Hello I posted this in powersdrIQ without luck. How is the timing/sequencing working in pwrsdr IQ? This it important for QRO PA relays , especially in CW mode....
