[Elecraft] K2 TX audio

Geert Jan de Groot pe1hzg at ymbk.nl
Tue Dec 21 17:24:48 EST 2021


On 21/12/2021 21:30, elecraft-request at mailman.qth.net wrote:
> The SSBCAPKT was released November 2004.??? KSB2 kits built before that
> had a 2.1 khz filter.
> Look at? your KSB2 board.? If CB and CN positions are populated, you
> have the narrow 2.1 khz filter width.

On my Rev-A K2, I've changed crystals, changed the filter capacitors for 
2.6kHz, and made the drive modifications from KI6WX (I'm driving 
transverters on 10m).

People complain that the audio doesn't sound right, and the Spectrogram 
grapth is far from flat. I'm OK with RX audio but people complain about 
my TX audio.
Is there any way to make the passband flatter, or to make the audio 
"fuller"?

I am aware that TX and RX can use different filters and adjusted for 
that. I just worry about the TX reports I am getting.

Geert Jan



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