There are two errors in my previous posting regarding the RCS-4 remote
antenna switch.
1) The default (off, no power) antenna position is ANT4. The ANT1
position is the one that is activated by the AC control voltage.
2) I mistyped the RFC/choke value. The value of the RFC in the remote
switch box measured with an AADE L/C Meter IIB is 70uH in circuit. It is
probably the same as the RFC in the control box that measures ~100uH.
Also note that the current version being sold by MFJ/Ameritron uses the
three-relay circuit with a modified layout of the connectors, which I
assume is to minimize any impedance bumps.
The two-relay version I mentioned in the previous post has provision for
jumpers that ground the unselected ANTx connector center conductors.
Neither of the three-relay version support this feature.
Gus Hansen
KB0YH
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