[Elecraft] Elecraft] K3 - getting a sub receiver - filter suggestions + dvr

[Edward R Cole]

Joe,

You have gotten several replies.  I ordered my k3 with the sub-Rx and 
have installed just the duplicate of my 2.8-KHz SSB filter.  That 
permits me to run diversity reception on CW, digital, or 
SSB.  Bandwidth can be set using the DSP independent of the roofing 
filter.  I would guess you might consider what modes you will use 
regarding filter (s) for the Sub-Rx.  I originally had a 1.3-KHz 
filter in the sub-Rx to utilize the radio in wideband diversity 
reception.  Therefore, I sold the extra 1.3 KHz filter as I only need 
the main-RX for FM (I do not run diversity Rx on FM).

Primary use of the sub-Rx is running dual-polarity reception on 
2m-eme where I tap off the IF into two LP-Pan and running special sw 
on my computer to resolve the polarization angle of the received 
signal.  But with the 2.8-KHz filter I can run diversity Rx on any 
band the K3 tunes, should I later desire to.

73, Ed - KL7UW