-----Original Message-----
From: softrock40@... [mailto:softrock40@...] On Behalf Of John Melton
Sent: Thursday, September 29, 2005 11:51 AM
To: softrock40@...
Subject: Re: [softrock40] Not working: HELP

If you want to run from a 6 volt wall wart you should consider the
changes by N1RX to substitute a 7805 for Q1 (see


I have used a USB extension cable to get the device on the bench for
testing.

If I tune my Kenwood TH-F7E to the 3 frequencies and hold the antenna
within an inch or two of the board I get an S9+ signal.

If there is no clock signal then you should carefully check C6 and C7
are correct (labelled 101J).? If you mistakenly switched C6/C7 with
C12/C13 then the clock will not run.

Recheck T1 connections - if either 3nad 5 or 4 and 6 are swapped then it
will not work.

-- John? g0orx/n6lyt



Stan Rife wrote:
> John,
>???? I do not hear a carrier at any of those freqs. I double checked my
> method by sniffing the XG1 and I hear it at 7.040. What level would the
> clock frequencies be at? I just have a peice of coax on my K2 and
> holding it near the SR-40. The XG1 was pretty loud, but that is a
> 50microvolt sig. I didn't check it at 1microvolt. I have a scope here,
> but am not very well versed at using it. That is something I have been
> hoping to rectify since I aquired it. Maybe this is my chance. Hi Hi
>???? Do I need exactly 5 volts to power the SR-40, or could I use
> something like a 6 volt wall wart? That is the only way I am going to be
> able to get this thing out on the bench where I can get to it.
>?
>?
> Appreciate the help, John,
>
> Stan Rife
> W5EWA
> Houston, TX
> K2 S/N 4216
>?
>
>???? -----Original Message-----
>???? *From:* softrock40@...
>???? [mailto:softrock40@...] *On Behalf Of *John Melton
>???? *Sent:* Thursday, September 29, 2005 10:48 AM
>???? *To:* softrock40@...
>???? *Subject:* Re: [softrock40] Not working: HELP
>
>???? Hi Stan,
>
>???? the S9 carrier at 7.056 is normal (even without the device powered).
>
>???? If you have a scope you can should check the clock signals that are
>???? shown on the schematic (QSD Timing Diagram) and also check that they
>???? are
>???? all getting to U5.
>
>???? If you do not have a scope you could tune a receiver to the 28.224,
>???? 14.112 and 7.056 clock frequencies to check that they are being
>???? generated but you will not be able to check that they are getting to U5.
>
>???? If the clocks are OK I would check the wiring of T1.? I have 2
>???? SoftRock40's? and when I built the first one I did not get the
>???? wiring of
>???? T1 correct and all looked OK but no signals.
>
>???? Hope that is of some help.
>
>???? Regards,
>
>???? John? g0orx/n6lyt
>
>
>
>
>???? Stan Rife wrote:
>????? >?????? 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
>????? >
>????? >
>????? >
>????? >
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