[Elecraft] How to demo P3/K3?

[Don Wilhelm]

Dave,

You don't have to build that mixer to shift the ham band down to the 
audio range, a Softrock receiver will do that.
For that matter, you don't need the I and Q channels, so any DC receiver 
without audio filtering after the mixer will do that job too.
Turning it back into RF is the bigger problem.  You need an SSB 
generator followed by a wide band filter for that unless you want to 
tolerate the carrier and the opposite sideband as well.

73,
Don W3FPR

David Gilbert wrote:
> Of course, it would always be possible to build a simple mixer that 
> shifted a ham band down to lower than 200 Khz and record that with a 
> decent computer sound card, and then mix it back up to feed it into the K3.
>
>