[UK-CONTEST] [CDXC] K3

[Ian White GM3SEK]

Don Beattie wrote:
>Apologies for cross posting this to two reflectors, but I am seeking a 
>bit of advice.
>
>I pressed my K3 into use for the ARRL 160 contest overnight, and this 
>morning, got a report of a bad spurious +/- 18 kHz from the wanted 
>signal. I've checked, and it's there, about 30-40 dB down.
>
>Has anyone experienced this, and is there a known fix ? I suspect 
>imbalance somewhere in the first mixer/DSP.
>
>Does anyone have any advice (other than to write to Elecraft !) By the 
>way, as far as I can see, it is there on all bands.
>

A known problem with a known fix. A batch of PA boards went out with a 
chip capacitor that shouldn't have been there.

It's a 5 minute job to remove it:

http://www.elecraft.com/K3/mods/K3%20Technical%20Alert%201.pdf



-- 

73 from Ian GM3SEK