[ICOM] True phase-locked diversity

Theo Bellamy theo.bellamy at spirittelecom.com
Fri May 18 17:07:36 EDT 2007


Bill Tippett wrote:

>         Theo the Elecraft K3 is the only rig I know
> of that will allow true *phase-locked* diversity (as
> was possible on the FT-1000D with an aftermarket mod).
> 

Interesting ... I will check it out. I had a '1000D back in the early 
90s that I used on 160. I had some beverage antennas for receiving and 
it was the most amazing thing to listen to weak stations in diversity 
mode with the beverages on the sub-rx and the full sized vert on the 
main. I think our brains can do some incredible "cranial noise 
reduction" when the signal is heard from one receiver in one ear, and 
the other receiver in the other ear. It give the sound a third dimension 
that lets you listen "around" the noise.

There were many times that solid copy could only be achieved in this 
way, and either receiver alone only produced an unreadable signal buried 
in  noise.

I found it quite incredible. Having a dual diversity system with two 
good receivers and phase-locked tuning is, to me, the Holy Grail of Low 
Band receiving set ups.

73 - Theo K4MO



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