Very good Stan!!? Glad the little receiver is
working for you.
?
73,
Tony KB9YIG
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----- Original Message -----
Sent: Thursday, September 29, 2005 5:37
PM
Subject: RE: [softrock40] Not working:
HELP
??? Finally got it.? NICE RECEIVER!!??
Went through touching up pins on the IC's and the filter again. Hooked it up
and VOILA !!
?
?
Stan Rife
W5EWA
Houston, TX
K2 S/N
4216
?
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
>
>
>
>
>
>
>
