[Elecraft] [Elecraft_K3] Who said anything about removing diversity? That would *never* happen...

[Terry Posey]

The list "din" over relocating the VFO LINK function off of the SUB RX
button seems to have subsided...  The following comments are about LINK, and
not about the fabulous DIVERSITY function:

I am VERY pleased that Elecraft has relocated the VFO LINK function off of
the SUB button.  Accidental LINK of VFO A/B during at least three major
DXpeditions has been a serious problem, which has probably cost numerous
DXpedition QSOs.  During the heat of DXpedition operations, it is very easy
for even a well-seasoned K3 operator to get the critical hold timing on the
SUB button wrong enough to enable LINK.  Then as the DXpedition operator
tunes his SPLIT QSX frequency looking for callers, his own TX frequency
moves up and down the band in step per the command of VFO LINK.  The pileup
becomes totally confused, the QSO rate goes to ZERO, and the DXpedition op
does not realize what is happening.  Most DXpedition ops are looking at
their QSX pileup frequency, not at their TX frequency, and the little
blinking decimal point is unnoticed.

I have mulled over this K3  LINK function for quite some time.  In my 43
years of ham radio operating, I can only think of one situation where I
wanted to LINK my TX and RX VFOs:  Early AMSAT OSCAR satellites with linear
cross-band transponders.  But, for those who can find a need for LINK, I am
glad that Elecraft has retained that functionality - just not on the SUB
button

73,
Terry K4RX

+++++
Subject: Re: [Elecraft] [Elecraft_K3] Who said anything about removing
diversity? That would *never* happen...

In diversity mode, the main and sub RX synthesizers are guaranteed to be
phase-locked to each other if the crystal filters selected for main and sub
both have exactly the same frequency offset. The offset for all 8-pole
filters is 0.00. The offset for 5-pole filters varies, and can be ordered in
matched sets for main/sub. 

Wayne
N6KR