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Hello Folks,

I just got my Softrock40 kit assembled. I also wrote a GNURadio
program to tune around the +-24khz BW. I plugged in the board and the
green LED glows, but do not hear anything. The coax is not connected
to the antenna. I checked the signals on clocks with my scope (which
cannot accurately measure the frequency at the moment, but there is a
signal there).

Since I do not run Windows at home, and since I do not want to have
too many variables, I am at another place which has a WinXP machine. I
installed all the software (rocky, powerSDR, powedSDRconsole,
sdradio). Currently I am using sdradio to see whether some signal is
coming out. I just cannot hear anything other than the carrier at
7056000, which happens to be there even when I take the audio cable
out of the soundcard input.

I do not have any other signal generator like the XG1 being used by
many of you. Is there some way I can verify that the hardware is
working?

The noise floor is at around -100dbm on SDradio.

When I touch the down portion of the PCB near oscillator, the noise
floow rises to -50 dbm. But I still cannot hear any stations. Again, I
haven't connected an antenna to the cable.

On teh software side, thanks to Cecil and others, I have afew sample
files, which I hope to make use to test my gnuradio script. If it
works with the files, it should work without any issues with
softrock40 too.

I searched the email archives, looks like Stan has faced similar
problem too. I will be touching up all the solder joints again and
trying and will also try to tune my main rig to oscillator frequencies
to see if it is working fine.

--
73 - Ramakrishnan, VU3RDD

I don't see how you expect to hear any stations without an antenna
connected. You must get some kind of signal into the radio in order
to hear something. Do you have a transmitter that you could connect
to a dummy load? If so, set your transmitter to 7.050 Mhz, or
somewhere near there. Transmit a CW signal into the dummy load, and
see if you can pick it up with the softrock. You will still have to
connect some kind of antenna to the SR. Even a piece of wire of a
few feet in length should do for this test.

GL,

Bruce N1RX

--- In softrock40@..., Ramakrishnan Muthukrishnan
<vu3rdd@g...> wrote:

Hello Folks,

I just got my Softrock40 kit assembled. I also wrote a GNURadio
program to tune around the +-24khz BW. I plugged in the board and

the

green LED glows, but do not hear anything. The coax is not

connected

to the antenna. I checked the signals on clocks with my scope

(which

cannot accurately measure the frequency at the moment, but there

is a

signal there).

Since I do not run Windows at home, and since I do not want to have
too many variables, I am at another place which has a WinXP

machine. I

installed all the software (rocky, powerSDR, powedSDRconsole,
sdradio). Currently I am using sdradio to see whether some signal

is

coming out. I just cannot hear anything other than the carrier at
7056000, which happens to be there even when I take the audio cable
out of the soundcard input.

I do not have any other signal generator like the XG1 being used by
many of you. Is there some way I can verify that the hardware is
working?

The noise floor is at around -100dbm on SDradio.

When I touch the down portion of the PCB near oscillator, the noise
floow rises to -50 dbm. But I still cannot hear any stations.

Again, I

haven't connected an antenna to the cable.

On teh software side, thanks to Cecil and others, I have afew

sample

files, which I hope to make use to test my gnuradio script. If it
works with the files, it should work without any issues with
softrock40 too.

I searched the email archives, looks like Stan has faced similar
problem too. I will be touching up all the solder joints again and
trying and will also try to tune my main rig to oscillator

frequencies

to see if it is working fine.

--
73 - Ramakrishnan, VU3RDD

On 10/15/05, Leon Heller <leon.heller@...> wrote:

----- Original Message -----

Check the coil connections Those are the most likely cause of the problem if
all the solder joints are OK.

If you have a 40m Tx you could use that for testing, or make a simple test
oscillator if you have a suitable crystal.

I soldered all the connections again and my gnuradio software seem to
pickup something from the little board. There is heavu QRM here in
VU-land now. I connected a long wire as the antenna. Have to check
again tomorrow morning. Thanks a lot folks. Will have to refine the
software. It's not release-worthy yet. Will keep the list updated.

I need to build a test oscillator or get an XG1 next.

--
73 - Ramakrishnan, VU3RDD