Strange behaviour of K144XV :-((

[Oliver Dröse]

Hi guys,

after getting the missing cables today (thanks Elecraft) I immediately started
installing the K144XV into my K3. Everything went together smoothly, no
problems, at least hardware-wise.

But, I have hundreds of birdies throughout the whole 2 m band. :-(( It does not
matter if antenna connected or not, or connected to a dummyload, so I suspect
these are internally and some of them are really annoying. Already checked all
the TMP cable connections, everything seems okay.

Furthermore when switching down to 28 MHz I now have strange noise when tuning
the VFO between 28.002 and 28.007 sounding like synthesizer noise which was
definitely not there before. :-((

Any ideas what the reasons are and how to solve the problem(s)?

As I do not have the KRX3 module I tried to put the 12 V wire going to the other
side of the mainboard to power the K144XV like shown in the manual but as the
wire is so long it is laying on the mainboard. Could that be the reason, some
pickup there?

Thanks in advance!

73, Olli - DH8BQA




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[Oliver Dröse]

One addition:
The s-meter also shows S5-6 level without a signal source (in all cases: no
antenna, dummyload or antenna connected), while all other bands are okay with no
s-meter movement without a signal.


----- Original Message -----
From: "Oliver "Olli" Dröse" <[hidden email]>
To: <[hidden email]>
Sent: Tuesday, August 24, 2010 1:00 AM
Subject: Strange behaviour of K144XV :-((

> Hi guys,
>
> after getting the missing cables today (thanks Elecraft) I immediately started
> installing the K144XV into my K3. Everything went together smoothly, no
> problems, at least hardware-wise.
>
> But, I have hundreds of birdies throughout the whole 2 m band. :-(( It does
> not matter if antenna connected or not, or connected to a dummyload, so I
> suspect these are internally and some of them are really annoying. Already
> checked all the TMP cable connections, everything seems okay.
>
> Furthermore when switching down to 28 MHz I now have strange noise when tuning
> the VFO between 28.002 and 28.007 sounding like synthesizer noise which was
> definitely not there before. :-((
>
> Any ideas what the reasons are and how to solve the problem(s)?
>
> As I do not have the KRX3 module I tried to put the 12 V wire going to the
> other side of the mainboard to power the K144XV like shown in the manual but
> as the wire is so long it is laying on the mainboard. Could that be the
> reason, some pickup there?
>
> Thanks in advance!
>
> 73, Olli - DH8BQA
>
>
>
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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Please help support this email list: http://www.qsl.net/donate.html