[Elecraft] K3 K144XV spurious signal on 144,414.1

[David Pratt]

Yes, Sverre, something similar here, but in my case the frequency is 144411.09 kHz which is even closer to your beacon.  I think this requires a response from Wayne, Paul or Ron, etc.

73 de David G4DMP


David Pratt on his Asus Nexus 7 tablet.
On 19 Apr 2015 08:25, "Sverre Holm (LA3ZA)" <LA3ZA at nrrl.no> wrote:
>
> I would appreciate it if other owners of the K3-K144XV would check for this 
> signal. 
>
> It appears as if it is a regular input signal, i. e. it tunes normally. But 
> it is still there even if the 2m antenna is disconnected or the input is 
> shorted, so it seems to be internally generated. 
>
> I have tried all the tricks I know such as moving of internal cables in the 
> K3. I also updated the K144XV firmware and that got rid of the spur at the 
> 36th harmonic of the 4 MHZ K144XV processor crystal at 144,005. 
>
> But the 144,414.1 spur remains, close to the SK4MPI beacon at 144,412 which 
> is one of the main indicators of propagation here.