Tony,
I sent you an email to your personal address. Yes, I could certainly use some
realtime help.
?
?
Stan Rife
W5EWA
Houston, TX
K2 S/N
4216
?
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Hi Stan,
After
building over forty of the little SoftRock receivers I have seen what
you
are talking about several times. With no signal at all getting through,
it
usually is associated with the oscillator signal not being divided down
to
clock the QSD quad switch.? Check carefully for open pins on the IC's and
solder bridges between IC pins.? Most of the time when a SoftRock
does not
play right for me it is associated with a soldering
problem.
The usual things of making sure the right components are in
the right
locations is fundamental.? Also check IC orientation.?
U1 for example has
its pin 1 in the lower left corner of the IC when the
printing on the IC
reads upright from left to right.
One time with
no signal getting thourgh I had a bad crystal which may have
gone bad by
too much heat in soldering the grounding wire to the crystal
case.?
Another time with no signal getting through the coax connector on the
end
of the antenna coax had an internal short.
On the plus side, all
SoftRock40 units I have built have worked properly,
some with extra
effort, with a baseline noise level of about -137 dBm when
the unit is
calibrated for S9 (50 uV RMS) at -73 dBm.
I would be happy to chat on
the phone with you if you would like additional
help.
73,
Tony
KB9YIG
----- Original Message -----
From: "Stan Rife"
To:
Sent:
Thursday, September 29, 2005 10:12 AM
Subject: [softrock40] Not working:
HELP
> I finished the SoftRock last night and I plugged it in to
one of my
> USB hubs...no green light from the LED. I put it back on the
bench and
> verified everything and all looked ok. After messing with it
for a while
> and
> still not getting a green LED from my USB
hub, I decided to plug it in to
> the USB on the back of the
computer...GREEN LIGHT. Wondering why the USB
> hub
> doesn't put
out 5 volts, but will worry about that later. I thought that
>
the
> 5 volts daisy chained from device to device.
> So, it lit
up, but I am not receiving anything. The latest binary
> was acting
really weird on my computer, so I reinstalled PowerSDR and then
>
unzipped the binary's from August in to the SDR install. It appears to
> work
> ok now, I think. I have no way of verifying that. All I
get is a little
> background noise (I got this before though) and a
solid S-9 carrier at
> 7.056, but this is ALL I ever got from the
software whenever I would start
> it up with NO hardware. So, I hope
this is making sense, the SR-40 is
> either
> not working
properly, or the software is not working.
> I can play the canned .wav
files and that works, but nothing from
> the SR-40. Made sure my LINE-IN
port on the soundcard was selected, and
> checked that the volume was up
sufficiently. I don't know what else to
> check, or how to check it. I
am electronically challenged, sorry guys.
> Plus
> it is hard to
get back behind the PC to do anything. I don't have a 5 volt
> power
supply. Can I use a 6 volt wall wart?? I didn't see a 5 volt
>
regulator
> on the SR-40.
> Can someone tell me where to start?
And what about the S-9 carrier
> at 7.056?? Is that supposed to be
there?? I do have an XG-1 signal source,
> but I'm not getting anything
to the software.
>
> Thanks,
>
> Stan Rife
>
W5EWA
> Houston, TX
> K2 S/N
4216
>
>
>
>
>
>
> Yahoo! Groups
Links
>
>
>
>
>
>
>
