[Elecraft] [K2] Lost 80m recieve.

[Don Wilhelm]

Alan,

Additional information:
The fact that it failed at one point earlier, and "fixed itself" for a 
while strongly suggests a bad solder connection in the PLL/VCO area.  It 
works one time and not another is usually an intermittent solder 
connection problem.

73,
Don W3FPR

On 9/5/2011 8:40 PM, Alan Davenport wrote:
> Hello,
>   
> I have lost 80m receive on my K2 S/N:7012. I had this problem during the build but it "fixed itself" by the time I sorted out some other problems. 80m was working just fine for 6-7 months. The problem has returned.
>   
> Injecting a signal starting at the antenna, I get nothing on either side of K8, nothing if I inject at W1, and very weak signal if I inject at the output of relay K2. Strangely, it will TRANSMIT on 80m with normal power levels but it outputs a signal at approximately 3712 and that does not change when the VFO is changed. The VFO digits change as expected as the dial is rotated.
>   
> I re-soldered all connections for 80m from in the band pass and the low pass filters. I temporarily removed the ATU to remove that from the equation with no effect on the results.
>   
> It seems significant to me that it will transmit and that the transmit frequency is fixed at an incorrect value. Honestly though I am at a loss and need some advice as to how to proceed. Any help will be greatly appreciated.
>   
> 73 de Al, W2GZN
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>