[Elecraft] combining so2r and main rx o/p

[stephen pearce]

1/
With regard to combining signals from different antennas ..
phased verticals feed by the same tx are used to provide directional
control of tx signal ..
could one phase combine signals from the 2nd receiver and signals from
the first ...
connected to different antennas .. (are the local oscillators fed from
the same clock ?) to produce a similar phased directional control on
receive
2/The reference input port on the k3 has a blank in it and I cannot
see any infomation on installation of the external reference
connection .. where does one find informatin on this ?

Tnx
-- 
Stephen Pearce
zl1any
Whangarei