Latest from South Carolina

Terry Fox wb4jfi at
Fri Oct 27 23:32:33 CDT 2006

BTW, I also received two sound cards:  a Delta 44(PCI) and an Extigy (USB).
If we do the sound card testing, they can be added into the mix.

If we do that testing, we also need to track the number of inputs & outputs,
plus maximum voltages in and out.  These become important for feeding the
proper levels in and out from the hardware to the SDR software.


----- Original Message ----- 
From: "Terry Fox" <tfox at>
To: <tacos at>
Sent: Friday, October 27, 2006 11:22 PM
Subject: Latest from South Carolina

> Well gang, here's the latest report:
> On Wednesday I received a beta kit from Tony Parks for the Soft Rock
> single-board RXTX unit.  It is for 40 meters.  I finished putting it
> together today, and tested it out.  LO leakage seems a little high, Tony
> his design team are addressing this.  Otherwise, it looks good.  It works
> with PowerSDR software, a special version right now.  I am presently
> listening to W1AW code practice on it.  I think Tony and others are doing
> fantastic job pushing this new technology down to a very cost-effective
> price-point.
> I have a second kit that Mel (W4MEL) bought, I plan to build it once the
> correct component values are figured out.
> I just about finished building three more AD9850-based DDS units to use as
> LOs for the soft rocks.  Waiting for amplifiers to come in.
> No news on antennas.  Things seem to be working OK, but I haven't been on
> the air, exept with the soft rock kits.  I am ready for 40 meter contacts,
> if someone wants to try.
> I am testing Hal's SDR-1000.  It is an early unit without a board that
> things better.  Lots of spurs and other garbage from what I am seeing.
> there may be power supply mods and other things to help it out.
> I still believe the SDR stuff is very much worth pursuing.  Mel is working
> with various Linux SDR software packages.  He has made great progress
> figuring out how they work.
> I am also pursuing my own SDR hardware design as I get time.  Lots of
> maybe some will make it onto a breadboard.
> The smaller alligator (5ft) was across the lake all day today.  He was
> "resting" on the bank, and barely moved the whole day.
> Have you ever seen a bird that swims completely underwater, and
> occassionally sticks his head an neck out?  Well, I thought I was seeing a
> small version of the Loch Ness monster the first time.  It turns out the
> Anhinga (SP?) does just that.  And we have two that show up regularly
> now.  It flies in, and lands across the lake.  Then, while sunning itself,
> it watches the water.  Next thing you know, it dives into the water and
> disappears.  Then you see just the head and neck come up as it swims
> It will then go underwater again, only to pop-up elsewhere a minute or so
> later.
> Man, that's one neat bird!  It flies, it walks, it swims, it goes
> underwater.  It quacks like a duck (not really).  I have it on tape.
> I'm sure more happened, but those are the highlights.  Have fun at Tacos!
> 73s
> Terry
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