[Elecraft] [K2] Lost 80m recieve.

Don Wilhelm w3fpr at embarqmail.com
Tue Sep 6 08:56:33 EDT 2011


Alan,

That sounds like you tuned down from 40 meters to the 80 meter band, and 
the VFO could go no lower than 11038 MHz.  If so, it is easy to fix - 
just do a direct frequency entry to any frequency in the 80 meter band.

If that does not fix it, then check the soldering on RF Board C72.  
Another possibility is a bad relay at K13, but if all other bands are 
OK, then the relay is quite low on the suspect list - but check the 
soldering at K13 pin 4 since that pin only switches in C72,

73,
Don W3FPR

On 9/6/2011 8:33 AM, Alan Davenport wrote:
> Good Morning Don,
>   
>       Well it certainly looks like it is a VCO issue. On all bands except 80m, it is working correctly however on 80m here are the results:
>   
> 3.5 MHz = 11038.61 MHz
> 4.0 MHz = 11038.51 MHz
>   
> Subtracting 4913 KHz gives me  ~ 6125.6 KHz.
>   
> No wonder 80m isn't working. What surprises me is that this issue is confined to just one band. What is your suggestion on what to check?
>   
>      Thank you again Don,
>       73 de Al, W2GZN
>
>
>


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