[Elecraft] a/b vfos

[Barry McWilliams]

Todd - try the SUB (sub-receiver button).   It "links" the VFOs.  This 
feature appeared in a software update described as ...

VFO LINKING: Holding the "SUB" switch links/unlinks the two VFOs. When 
linked,
    VFO A is the master; turning it moves both VFOs the same amount. VFO 
B can be
    set to the same frequency by tapping A>B, or it can be offset a 
fixed amount from VFO A.
    Setting them to the same frequency will permit diversity receive 
with the subreceiver.