Gareth,
Since you are using DM780, yes you can see the 100 Hz subcarrier. I
usually use the Spectrogram 'scope display and that subcarrier is there
but it is a low amplitude and becomes "lost" in low frequency 'trash'
like any 60 Hz noise in the computer soundcard and the zero frequency spur.
Thanks Don
Since sending that email, I'd come across Wayne's article on the mechanics of
CAL FIL. That opened my eyes to something I'd read, but clearly not absorbed:
i.e. when a modified BFO is saved, the K2 re-calculates the value of VCO needed
to obtain the same AF tone as before. Although th
Gareth,
That is NOT correct.
You must do things in order and all will work out properly.
First, the 100 Hz WWV subcarrier should be outside the passband of the
SSB filters, so it will have a very low amplitude.
It is better to use the alternating 500 and 600 Hz as well as the 'on
the minute' t
Unfortunately the shift in dial calibration between filter settings is due to
the limited resolution of the DAC converters that control the BFO. It is a
design compromise, not much you can do about it.
If you adjust the reference oscillator, eg. by using Wayne’s procedure, then
you need to run
I realise this is close to becoming an obsession, but I really want to
understand what's going on.
Once I'd gone through my modified version of Wayne's process for adjusting
the VCO (i.e. adjusting the VFO to have the WWV 100Hz sub-carrier on
100Hz), I realised that this applied only to LSB FIL1.
uild! 73, curt
- Original Message
From: Nick Henwood <[EMAIL PROTECTED]>
To: elecraft@mailman.qth.net
Sent: Friday, March 16, 2007 6:20:04 AM
Subject: [Elecraft] K2 Filter settings
Thrilled to get my K2 working on 7 MHz receive but I seem to have a problem
with filter set
I'll be the third to chime in on how useful the spectrogram method of
aligning filters is. The first time around (without spectogram) I
noticed similar results as you did, then I did the spectrogram
alignment and it got *much* better, but it still wasn't right. Third
time, it got even better. I'll
And the Spectrogram marker you've set to your preferred
CW note (offset) will enable you to center the passbands
on that frequency
73! Ken Kopp - K0PP
[EMAIL PROTECTED]
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Nick,
I wholeheartedly second this. I followed the manual and noticed the same thing
you did. When I hooked up Spectrogram I could clearly see that the narrower
filters were off center. I adjusted while watching the Spectrogram screen and
things sound *much* better.
Craig AC6NN
--
Nick,
Sometimes the filters (particularly the narrower ones) do not respond well
to the initial numbers in the manual because the filter center may be
shifted a bit due to the particular set of matched crystals supplied. I
don't think you have a problem.
There is a solution, and that is called '
Thrilled to get my K2 working on 7 MHz receive but I seem to have a problem
with filter settings.
Everything has checked out according to the book - no problems at all (even my
home-wound coils seem to work!!)
I have set up the filters exactly according to pages 88 and 89. On Filter 1 the
rx sou
I was able to obtain K2Z both the program and the documentation from
archive.org.
Unfortunately, the source code does not appear to be available.
I'd be happy to provide the files I got to anyone who needs them; I
haven't tried it, though.
Leigh / WA5ZNU
Ken K3IU wrote:
Unfortunately, the l
Unfortunately, the links to K2Z on the Elecraft website no longer
work and Tony passed away a while back.
73,
Ken K3IU
~~
At 02:42 PM 8/3/2005, you wrote:
Hi Chuck,
I did see your original post and I believe the program that you
are looking for is "K2Z" by Tony W
The hotlinks on the Elecraft website for K2Z are no longer valid it
appears.
73 Jim W4ATK
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Hi Chuck,
I did see your original post and I believe the program that you are
looking for is "K2Z" by Tony Wells G7IGG. You can find it on the
Elecraft website: http://www.elecraft.com/ . Click on "K2 Software".
PA0AKV's e-mail is pa0akv(at)noord.bart.nl (according to QRZ.com)
73
Please excuse me as this is a repeat of a previous post requesting assistance
for a Database Application that will record and store K2 Filter Settings. I
got a reply back from Andre Koopman PA0AKV. Andre was working on a VB.net
program that reads and stores the K2 filter settings in an MS Acce
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