I prefer to have the unselected ports grounded to minimize any static =
charge build up on the antennas during rain or snow from getting to the =
rig when any particular port is selected. Also when the power is off =
all the antennas are grounded at the tower for a poor mans version of =
lighting protection. (Fortunately ---- lighting in this area is very =
infrequent)=20
Operators who wish to use the switch in stacked arrays can still do so =
by applying the control voltage to more then one relay at a time leaving =
all the others grounded. I have never used the relay in this =
configuration so can't vouch for its effectiveness. In the operators =
manual the manufacturer describes this configuration for the switch. =
One would merely have to place a jumper across the appropriate terminals =
a the back of the shack control unit to do this. i.e if the two =
antennas were connected to ports 1 and 2 on the relay box at the tower =
-- then a jumper from terminal 1 to terminal 2 on the control unit (the =
easiest place to put it.) will bring up both relays when the switch is =
powered up with the selector knob on either position 1 or 2.
73 Frank VO1HP
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