[Elecraft] K3 AM & FM Proble Firmware 2.67

[Don Wilhelm]

John,

Compression on AM is not currently permitted because the same algorithm 
used for SSB creates distortion in AM - I believe Lyle has promised to 
develop a new AM compression algorithm, but I don't know when.

I have no clue about your FM problems - what deviation do you have set?  
Check the FM DEV setting in the menu - the default is 5.0 kHz.

73,
Don W3FPR

John Petters wrote:
> Merry Christmas everybody,
> I've just updated my firmware to 2.67.
> I now have no compressor available on AM and the audio sounds very 
> thin and low - very similar to that on FM.
>
> The modulation appears to decrease the carrier power. This second 
> problem has been an issue for some months.
>
> The FM has always sounded dreadful. Is anyone else using their K3 in 
> anger on either of these modes? If so are you noticing the same things?
>
> Altering the TX eq does not solve the problem.
>
> By comparison my IC706mk2 in AM mode gives lots of upward modulation 
> with compression, which is required under noisy conditions. The same 
> radio on FM narrow gives very good audio as well.
>
> Having done a super job with SSB and CW, I'm hoping we can get a 
> really top quality AM and FM transmit as well.
>
> Thanks in anticipation
> 73
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