K2 question

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K2 question

Mike Sexsmith
Hello all. I am finished with assembly, part II and am doing the testing and
alignment. So far everything checks out ok on voltages, linearization,
menus, ect. But thought that once I had done the amplifier alignment and
heard the internal signal at 7000 kHz ok, that I would be able to hear at
least some stations with a working antenna connected... I tried the 40 meter
band pass filter alignment, but turnig L1 and L2 doesn't seem to change
anything. I am hearing some hiss (good kind), so it seems I am getting some
kind of audio. AF gain works...    Am I mistaken about being able to have
full receive capabilities at this point?



Mike Sexsmith


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RE: K2 question

Don Wilhelm-3
Mike,

Yes, you should have full receiver capability (albiet only on 40 meters) at
Test and Alignment II stage.

Check your components and soldering carefully (at least 3 times) - and don't
forget to check for jumpers W1 and W6.
Then do some 'quick and dirty' troubleshooting - try connecting an antenna
to W6 - if you find signals there, try it at W1 - if you find signals at W6
but not W1, look at the T/R switch area for the problem.  If you find
signals at both W1 and W6 but not at the antenna jack, the problem is in the
Low Pass Filter area.

If you find no results from the tests above, then turn to page 9 of Appendix
E in your manual, build up the test oscillator shown there if you have no
adequate signal generator and proceed with the steps beginning on page 10
through page 12 (but not the transmitter parts).

73,
Don W3FPR

> -----Original Message-----
>
> Hello all. I am finished with assembly, part II and am doing the
> testing and
> alignment. So far everything checks out ok on voltages, linearization,
> menus, ect. But thought that once I had done the amplifier alignment and
> heard the internal signal at 7000 kHz ok, that I would be able to hear at
> least some stations with a working antenna connected... I tried
> the 40 meter
> band pass filter alignment, but turnig L1 and L2 doesn't seem to change
> anything. I am hearing some hiss (good kind), so it seems I am
> getting some
> kind of audio. AF gain works...    Am I mistaken about being able to have
> full receive capabilities at this point?
>
>
>
> Mike Sexsmith
>
>


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Elecraft mailing list
Post to: [hidden email]
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Subscriber Info (Addr. Change, sub, unsub etc.):
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Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com