[Elecraft] Low Serial Numbered K3

[Jim Brown]

On Tue,9/23/2014 5:41 AM, Mike K2MK wrote:
> The DSP board upgrade is considered very important by many K3 owners and it
> is not listed with the other K3 mods on the mods and notes page. You can
> find it only on the spare parts page. It is called K3DSPUPGD.

I'm an audio geek, and I see no need for RX audio below 300 Hz in a ham 
RX. Rolloff above 4 kHz is a good thing, but not worth $110 to me. :) 
Now, if you want to use your K3 to listen to AM broadcasts including 
music, that's a different story. BUT -- $110 comes close to getting you 
one of the excellent Tecsun consumer AM/FM/Shortwave/Aircraft band 
receivers like the PL660 ($120) or PL880 ($180). The PL880 was recently 
reviewed in QST. I own a PL660 and the much smaller PL380, which is my 
"hotel" radio.

73, Jim K9YC