Just monitor the voltage across the feedline to the antenna,


Use a diode + capacitor + 100K-ohm resistor + microammeter.


It doesn't matter what the actual voltage is. If it changes from normal
then something is wrong.


Or just keep an eye on the DC milliammeter in the final amplifier circuit.
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Regards from Reg, G4FGQ
For Free Radio Design Software go to
http://www.btinternet.com/~g4fgq.regp
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