[K3] [Elecraft] It have to work better!

[Bill W4ZV]

Alexander Ponomarenko-5 wrote:
> 
> Hi for all K3-users,
> 
> Some weeks we searched for the reason of bad K3's sound and high level
> IMD.
> We tried to replace resistors on the "line-out board". But it is 
> ineffectual.
> Fortunately, Vlad UN7GZ has found out the problem.
> Vlad has analysed the K3-scheme and has found some discrepancy on the 
> RF-board.
> This problem in poor-quality assembly.
> 

Priwet Alex!

I believe you are referring to this picture posted by UN7GZ:

http://forum.cqham.ru/download.php?id=32295

Was this W16 jumper cable completely missing or was it just poorly soldered?

I also noticed some references on the list about the KXV3 RX ANT isolation
problem.  I assume you know this is covered on the K3 Enhancements and
Application Notes page under "Receive Antenna TX Isolation Improvement (RXA
Mod Kit for the KXV3)".  This mod is not required for units with the KXV3
"Rev  B" Main Board.

http://www.elecraft.com/K3/k3_app_notes.htm

73,  Bill  W4ZV

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