Switching power supplies generally use radio frequencies to manage the voltage and amperage exchange. I assume that good ones have decent filters to keep the...
58691
Dave
g8kbv
Nov 2, 2011 2:39 pm
Take care trying to use old cellphone wall-wart's as "PSU's". Many are not PSU's as such, but Chargers. As such, they do not regulate well (if at all) with a...
58692
dxradio33
Nov 2, 2011 3:20 pm
This radio supports 40,30,20 meters. I am sorry I certainly should have indicated that in the first place....
58693
andrea montefusco
a.montefusco
Nov 2, 2011 5:36 pm
Maybe it is a little bit off topic, but I would like to suggest the manual of the Cute SDR program written by Moe Wheatley, AE4JY: ...
58694
dxradio33
Nov 2, 2011 8:07 pm
Radio has been sold. I am sorry that I was not clear on the frequency range to begin with. Thanks.. Joe...
58695
Jeff Kelly
jeffreypkelly
Nov 2, 2011 9:58 pm
Cleaning the Shack. USRP1 early serial # - No Case w/BasicRX, BasicTX, and one DBSRX. $500 FunDongle $150. Softrock 6.2 rxtx built $65. Softrock 6.0 SDR...
58696
ak4jr
Nov 2, 2011 10:15 pm
Just assembled the circuit board, connected to MAC, started DSP Radio, set the input/output signal polarity and audio ports, and it worked immediately. My...
58697
Alan
alanzfq
Nov 3, 2011 10:38 am
... From: "Jose Subject: Re: [softrock40] SoftRock RXTX 6.1 Local AM only ... not si570. Jose, Yes, I missed the fact it was an early model. But my comments...
58698
Eric Tv
astro4565t
Nov 3, 2011 11:02 am
I keep seeing folks who are using a Softrock or other radio to monitor a selected receiver's IF output. I'm not sure how this works or the advantage? For...
58699
la3jj
Nov 3, 2011 11:12 am
Hi all, I am quite active on WSPR and have recently built a few Ensembles for use on that mode. Runs nicely on Windows XP, Vista and 7, but as I have quite a...
58700
Alan
alanzfq
Nov 3, 2011 11:19 am
... Subject: [softrock40] SoftRock IF Lite II Combined Receiver- how does this work? ... It basically gives you a cheap SDR. Depending on the radio and how...
58701
Peter Johnson
m1bcv2002
Nov 3, 2011 11:59 am
Hi Jon To use usbsoftrock this is what you want. *cd ~ cd usbsoftrock-1.0.2 ./configure make sudo make install* *sudo groupadd softrock sudo usermod -a -G...
58702
vk7oo
Nov 3, 2011 12:05 pm
Hi Group My 2m RX Ensemble is up and running. It seems to work quite well, which is pleasing. Now for the interesting stuff. SSTV is my passion & I want to use...
58703
netnovel2005
Nov 3, 2011 12:10 pm
Hello, I am interested in signal from planet. The EARTH is singing on around 300kHz. It is called Dawn Chorus. I am making SDR receiving LF waves now. 73...
58704
Alan
alanzfq
Nov 3, 2011 12:18 pm
... Subject: [softrock40] 6m/4m/2m RX Ensemble ... Steve, You may find that SDRadio is best for satellites. Simon has recently added the Funcube Dongle and...
58705
Ethan Miller K8GU
k8gu
Nov 3, 2011 12:42 pm
Eric, There are really only three good reasons to do this: 1. You have a very high-end (RX/AGC spec's exceed SoftRock) single-signal radio to which you'd like...
58706
Sid Boyce
priddix
Nov 3, 2011 12:52 pm
... If you get a complaint about no "softrock group", "sudo groupadd softrock" to create a softrock group. or change the line to GROUP="dialout" ... This is...
58707
ak3f
Nov 3, 2011 1:03 pm
hello all. i am putting together an IF Lite II for use as a panadapter for my ic-736. i have a couple of questions. i'm building it for the first IF (9 mhz)...
58708
William Dillon
hpux735
Nov 3, 2011 2:12 pm
One thing I've done with the softrock while receiving satellites (though it's all linux stuff) is use hamlib's rigctld server (which allows tuning changes...
58709
Edson Pereira
ewpereira
Nov 3, 2011 3:09 pm
This is by far the best document about the implementation of SDR (the software) I have seen. Very well written using clear language and real life examples. An...
58710
Pete MI0VAX
p3te102
Nov 3, 2011 5:16 pm
Just got the rx section of my RXTX Ensemble built, after testing I was a little disappointed with the performance, so decided to get the sig gen out to have a...
58711
vbifyz
Nov 3, 2011 5:55 pm
-123dBm is excellent. The filter is lowpass, so it is expected to get worse at the high end, both form the filtering and the reduced mixer gain. My REAL MDS...
58712
Orin
orinem
Nov 3, 2011 6:32 pm
... I've come across similar with T80-6 toroids (I know these are T37s), ending up with inductance 20% high! I'd measure their actual inductance at the...
58713
la3jj
Nov 3, 2011 6:43 pm
Thanks Peter and Sid, vy good info, I have now got usbsoftrock working ;-)...
58714
Alan
alanzfq
Nov 3, 2011 6:53 pm
... From: "Pete Subject: [softrock40] Poor sensitivity on RXTX Ensemble during testing ... I don't know what to expect but I'd think it should be more even. ...
58715
Edson Pereira
ewpereira
Nov 3, 2011 7:48 pm
Hi Jon, I think I have seen you on my wspr screen many times! There is a small bug in usbsofrock. A few weeks back I've found that the buffer used to store the...
58716
Chris van Lint
chrisvanlint
Nov 3, 2011 8:38 pm
Hello Ethan, The possibility of using the SoftRock IF Lite II combined as a Panadapter is the application which interests me most where can I find information...
58717
John Williams
jswillms
Nov 3, 2011 8:56 pm
Thanks for this thread! I had tried WSPR on linux a while ago and it did not work. I pulled the latest SVN, installed libhamlib and was on the air RX on 20M in...
58718
Alan
alanzfq
Nov 3, 2011 9:06 pm
... From: "Chris Subject: Re: [softrock40] SoftRock IF Lite II Combined Receiver- how does this work? ... Chris, <http://www.wu2x.com/sdr.html> 73 Alan G4ZFQ...
58719
Pete MI0VAX
p3te102
Nov 3, 2011 9:58 pm
As has already been said, these components are selected for the bands required. Therefore I would have expected peak sensitivity to be at somewhere between the...
