Topband: TX/ RX Antenna Switching

[Tom W8JI]

> It sounds like the DX and MFJ are out because of Watt limitations (200W?).
>

You are misinterpreting the ratings.

The ratings are for power from the transceiver sent out THROUGH the device, 
not transmitter power to some other system not directly connected to the 
device.

The switches go between the radio and amplifier. This means unless you have 
a radio with more than 200 watts driving your amplifier, they are fine in 
the intended application.

If you use them as a receiver line limiter or disconnect, and do not intend 
to transmit through them, the power rating does not apply at all because it 
is an external system. In that case, the power rating would depend on mutual 
coupling between transmitting and receiving antennas and impedances of the 
receiving antenna system.
A "power" rating would be impossible to define because systems vary so much, 
but it would be many kilowatts even with close antennas.

73 Tom