[AMPS] High-SWR protection

[measures]

>
>
>> So, Chuck, your "mindless parroting" wasn't so far off base.  I haven't
>> looked to be sure, but my AL-1200 acts like it does not have sequenced
>> relays (there seems to be just one T/R relay that is just marginally fast
>> enough), so the ALC approach (and the PTT approach) might make sense for
>> that application.  When I put a VFD or WinWatt between my 756PRO and the
>> AL-1200, I get a momentary VSWR alarm as the AL-1200 T/R relay pulls in. 
>
>Pull in time is about 10 mS. This is typical of amps that don't use 
>vacuum relays....like the TL-922, Heathkits, Drakes, Dentrons, etc.
>
The TL-922 relay is closer to 20mS.  

>The relay is sequenced, 

One relay, sequenced -- [guffaw]. 
.....

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


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