Topband: Voltage along coax feeder
km1h at jeremy.mv.com
Wed Mar 27 11:31:39 EDT 2013
Check the Ameritron RCS-4 circuit. Selects 4 antennas with voltages over the
coax. Requires relays with excellent isolation for Beverages, the RCS-4 is
poor and I eventually built my own with DIP size microwave relays. No
problem with intermittent contacts or lightning....yet.
----- Original Message -----
From: "David Cole" <g3rcq at yahoo.co.uk>
To: <topband at contesting.com>
Sent: Tuesday, March 26, 2013 4:48 PM
Subject: Topband: Voltage along coax feeder
Could anyone please point me in the direction of a circuit to feed +12 -12
and AC along the feeder to my beverages to switch 3 relays - thanks all from
Dave in the UK
All good topband ops know fine whiskey is a daylight beverage.
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