[Elecraft] K2 Transmitter alignment

[Don Wilhelm]

The 'broadness' of the peaks in the bandpass filter will vary a bit from
band to band.
This is due in part to the LC combinations chosen for the design and the
degree of coupling - all chosen to give a proper spread over the bandwidth
required for each band selection while attenuating spurious responses.

These are 'bandpass' filters as opposed to a single frequency peaked tuned
circuit.  One could actually 'play' with the tuning to achieve the flattest
response over the band of interest, but that would require a lot of trial
and error adjustment (or an RF spectrum analyzer with a tracking sweep
generator) - usually peaking near midband is all that is required.

73,
Don W3FPR

----- Original Message ----- 

> How sharp a peak should I see when tuning L1, L2. I am not having any
> difficulty getting plenty of rf out. The tuning on L1 and L2 seems really
> broad.
>