When I first started with SDRs, I had a Softrock that had substantial
hum(p) around the center frequency. I added a pair of Triad sub-mini
isolation transformers, ones with good high-frequency response, and
found that instead of the hum(p) I now had a very narrow hole at the
center freq.
73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.
On 10/12/2013 9:40 PM, Nicklas Johnson wrote:
I had a lot of trouble until I put a ground-loop isolator between the KX3
and the PC. The grounding at my QTH is a bit less-than-perfect, and I was
getting a 60Hz+harmonics buzz by connecting the PC to the KX3. Not saying
it is the case with you, but it's just another one of those things.
You might try disconnecting the KX3 from your ground and running it off
batteries to see if it matters as far as the SDR is concerned... it's easy
to rule out a ground loop that way.
On 12 October 2013 18:20, Tom <[email protected]> wrote:
I think I'll be looking at the cables, I seem to be picking up some 60 hz
on the kx3, fairly low level but this is on the battery so it must be
coming from a connection somewhere. ThTs probably why there's always a log
spur at the center frequently .
I seem to have hdsdr working acceptably except for the spur. I'll also try
rockey.
Thanks for the suggestions
Tom
-------- Original message --------
From: WB4JFI <[email protected]>
Date: 12/10/2013 20:49 (GMT-05:00)
To: Tom <[email protected]>
Cc: Barry LaZar <[email protected]>,[email protected]
Subject: Re: [Elecraft] SDR software for KX3?
Hello Tom.
I have had success with using several SDR software programs (and sound
cards) with my KX3. It shouldn't be that hard. I've used Rocky, hDSDR, a
few variants of PowersDR, SDRsharp, and a few others, on various Windows
and Apple (iPad, iPhone) computers.
Most programs have internal adjustments for phase and gain differences, so
you don't need to adjust those with External mixer controls. Try Rocky
first, it's probably the easiest to set up and use. It can also
automatically adjust for your sound card and rig differences.
If you are having so many problems, be sure to check your cables. I have
had a couple of commercially made cables that were defective, with partial
shorts between the various connections. I had trouble with I/Q balancing
until I found they were bad.
Good luck. 73, Terry, WB4JFI
Sent from tfox iPad
On Oct 12, 2013, at 7:27 PM, Tom <[email protected]> wrote:
Hi
Well I just bought a new outboard sound card and removed all previous
cards. I'm now running an emu2020 and I can adjust the levels between the
channels. I can minimize the images but as soon as you move up or down a
while the images are back. I also have lots of spurious peaks making it
impossible to distinguish between cw and spurs. There is no adjustment in
software for the inputs but I can adjust the levels on the outside. The
images look nowhere like what you see on YouTube.
Getting pretty frustrated here
Tom
-------- Original message --------
From: Barry LaZar <[email protected]>
Date: 12/10/2013 17:28 (GMT-05:00)
To: [email protected]
Subject: Re: [Elecraft] SDR software for KX3?
Guys,
The one that really works well is NaP3. It was originally set up
for the K3, but the latest iteration does a great job on the KX3. I've
been running with the software for about a year or so, and I now don't
know how function without it.
73,
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