[Elecraft] [K2] What happens above 28.8 MHz ?

[Geoffrey Mackenzie-Kennedy]

Steve,

I have not measured the roll-off of the the K2's bandpass and low pass 
filters above 28.8 MHz, and I cannot help you at the moment because I do not 
have my test equipment here..

My K2/100's receiver did have a couple of fairly strong birdies near the top 
end of ten, which IIRC were due to some harmonic of the BFO being heard by 
the desired response or a spurious response of the receiver e.g. BFO x 6 = 
approx 29.479 MHz in my K2.

73,
Geoff
GM4ESD


On Thursday, April 07, 2011 at 11:07 PM, Steve Kavanagh wrote:

>I was just pondering if I could use my K2 for transverter operation at 29.4 
>MHz, despite the specified upper frequency limit on 10m being 28.8 MHz.  On 
>my unit, at least, the VCO still works.  I can hear signals but it seems 
>they are probably a bit attenuated.  Does anyone have real data on how much 
>the bandpass and low pass filters roll off above 28.8 MHz ?  Are there any 
>nasty spurious signals to be aware of ?
>
> 73,
> Steve VE3SMA