[AMPS] High-SWR protection

[measures]

>
>Tom Rauch wrote:
>> 
>> > 2. use the SWR alarm relay to apply cutoff ALC voltage to the exciter;
>> > this method protects the amplifier's relays, so it's better than just
>> > de-keying the amp.
>> 
>> If the relays in the amp are properly sequenced, dropping the relay
>> line won't hurt a thing.
>
>By 'properly sequenced' I presume you mean that the output relay closes 
>before
>the input relay and opens after it.  But even in this case, dropping the amp
>relay line hot-switches the input relay.  I am afraid the 50-100 watts 
>from the
>exciter could damage the small input relay.
>
€  Good point, Vic.  

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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