For these tests I have been using the Realtek analog card inside my MSI Netbook. I have not tested the iMic. As a comparison I just took a look at my Peaberry....
71916
warrenallgyer
Jan 24, 2013 10:13 am
.... and one more point in favor of the Peaberry: With the new firmware I am seeing a device noise floor in the range of -143 to -146 dBm after S9 calibration...
71917
Parks, Tony
kb9yig
Jan 24, 2013 10:32 am
The complex gain of the LT6231 stage is given by (R56/R55)/(1+j6.28*f*R56*C44) where f is the frequency in Hz and j is the sqrt of -1. This results in a...
71918
warrenallgyer
Jan 24, 2013 10:49 am
Awwww.... c'mon Tony. You just love to watch Alan, David, Roger, and me fight.... admit it! Of course we are having fun! I have said it before: Softrocks are...
71919
Robert
wildviewranch
Jan 24, 2013 3:22 pm
I finished the build and things seem to check out. I have a Voltage of 41mVdc across R48 and 40.2mVdc across R49, it's just a bit below the +/- 10mVdc spec and...
71920
KQ8M
Jan 24, 2013 3:28 pm
The bifilar winding will be the same side of the transformer. So if it calls out P1 and P2 then the bifilar are those and the same with S1 S2. 73, Tim Herrick,...
71921
Robert
wildviewranch
Jan 24, 2013 3:42 pm
Has anyone had any luck using the SB live soundboard with Rocky? Without any hardware attached the sound quality is crackly and ratty sounding and not clear at...
71922
Robert
wildviewranch
Jan 24, 2013 3:50 pm
Hey Tim, Yeah I understand that much. It's picking which is p1 or p2 pair that I was wondering about as I mentioned. Since in this case on T4 the primaries are...
71923
R. R. (Robby) Robson
wb5rvz
Jan 24, 2013 4:20 pm
It doesn't matter. As youi noted, they are identical in length and turns (because of the bifilar winding). The important thing is to make sure that the two...
71924
Robert
wildviewranch
Jan 24, 2013 4:46 pm
Tnx Robby that's what I thought, but just wanted to make sure on that part. Thanks again for the great build notes since it was very helpful in completing the...
71925
KQ8M
Jan 24, 2013 5:20 pm
No it doesn't matter which pair is to which set. Just make sure with an ohm meter that you have the windings correct and not crossing. I usually make the...
71926
kd4pqf
Jan 24, 2013 6:11 pm
One last time and I give up.... my 40/30/20.. is running into line in of computer being sent to digital master by virtual cable.. RX is great......... TX...
71927
warrenallgyer
Jan 24, 2013 6:24 pm
Rob Most, me included, have experienced a degree of crackling and popping when using it with Win 7. This is apparently due to Win 7's different audio driver...
71928
kd4pqf
Jan 24, 2013 6:41 pm
Got my SDR back from Tony Today, it had a bad cap... I Still can not get it to transmit...I have tried Rocky, SDR, HDSDR. I have a second sound card modem...
71929
Alan
alanzfq
Jan 24, 2013 6:57 pm
... Subject: [softrock40] 40/30/20 still no transmit ... It keys via the USB controller. To get it to work with DM will be fairly complex, I'm not sure how to...
71930
Robert
wildviewranch
Jan 24, 2013 7:00 pm
Tnx Warren, actually I'm using Rocky on an XP machine and seeing this problem. It must be, it doesn't like my SB live sound board or something, not sure. I'm...
71931
John Greusel
greusel...
Jan 24, 2013 7:01 pm
I would skip the virtual cables, use two sound cards (not ham modems), stick with a softrock compatible version of PowerSDR and take your time reading all you...
71932
Robert
wildviewranch
Jan 24, 2013 7:13 pm
Thanks Tim. Yes, that is what I thought. To identify the pairs, I put ~1/8" colored wire spacers on the p1(blk) p2(red) or s1(blk) s2(red) pairs and would...
71933
Kenneth Hardy
kenahardy
Jan 24, 2013 7:38 pm
Rob  Yes, as Warren comments Rocky tends to be unstable with W7 with a lot of noise on the audio of received and transmitted signals. However with a PC...
71934
Joe Vilardo
jvilardo2000
Jan 24, 2013 7:52 pm
Well I finally got it recognize the softrock ensemble as DG8SAQ-I2C by trying every single USB port on the computer, a total of 6. When I tried the last one,...
71935
Robert
wildviewranch
Jan 24, 2013 8:18 pm
Ken, I'm using an internal sound card on my XP machine and maybe that is my problem. Is it possible to use my USB Signalink for this instead of internal card? ...
71936
David Turnbull
ae9rb
Jan 24, 2013 8:39 pm
The SoftRock uses V-USB. The first bullet point of the features as well as the hardware info about 5V is of interest here. ...
71937
Kenneth Hardy
kenahardy
Jan 24, 2013 10:27 pm
Rob I believe I am correct in that: For receive functions only, Rocky only requires the use of one soundcard which may be internal to the PC or an external...
71938
Parks, Tony
kb9yig
Jan 24, 2013 11:10 pm
Hi Brue, I tried sending the following message directly to your e-mail address but the message was rejected. Very sorry to hear that the RXTX board is not...
71939
warrenallgyer
Jan 25, 2013 2:09 am
I have done some work overnight to try to correlate a WSPR noise level of "0" to an actual noise level on HDSDR. It seems pretty consistent: Using the sound...
71940
Fred Moore
wd8kni
Jan 25, 2013 2:53 am
Signalink is mono only card.. Fred ... Signalink is mono only card.. Fred On Jan 24, 2013 3:18 PM, "Robert" < w7fj@... > wrote: Ken, I'm...
71941
warrenallgyer
Jan 25, 2013 3:40 am
Further to this and, hopefully, my final note on the subject, I have run WSPR on 20 meters this afternoon for a little over an hour, alternating every few...
71942
Bob
k5myj
Jan 25, 2013 7:06 am
What software should a NEWBIE use to test a softrock receiver? I am a highly skilled retired EE and a skilled ham. I Just have never tried one of these simple...
71943
Shirley Márquez D...
mdulcey
Jan 25, 2013 7:13 am
SDR# (sdrsharp.com) is a nice, simple SDR receiver program that works well for most people who have Windows computers. Some hams have also successfully used it...
71944
Alan
alanzfq
Jan 25, 2013 7:24 am
... Subject: Re: [softrock40] Newbie Test Software SDR# (sdrsharp.com) is a nice, simple SDR receiver program that works well for most people who have Windows...
