[Elecraft] K1 calibration question.

[Don Wilhelm]

Gil,

You cannot do both 20 meters and 10 meters on the 4 band board.  The Low 
pass filter for the 2 higher frequency bands is shared, so if the LPF 
were to pass 10 meters, the 2nd harmonic of 20 meters would not be 
suppressed.

If you use the 2 band board, the Low Pass Filter is dedicated to a 
single band, so that shared problem does not occur.

The 2nd problem with 10 meters on the K1 is finding a fundamental mode 
crystal that will operate at 36 MHz.

73,
Don W3FPR

On 6/16/2012 8:26 AM, Gil G. wrote:
> Thank you Mike.
>
> I would get the four band module if it had 10m (I might still). I have a PAR end-fed dipole for 40/20/10, so it would be great to use the same antenna for three bands. I have seen that 10m can be done on the K1. I guess that with a wire and ATU I could cover four bands...
>
> Gil.
> --
> http://radiopreppers.com
>
>