[Amps] Overdrive protection

Michael Tope W4EF at dellroy.com
Fri Jul 27 06:13:23 PDT 2012


On 7/26/2012 11:49 AM, Jim Barber wrote:
>
> Perhaps a bad attitude, but I for one appreciate lower drive
> requirements for
> high(er) duty-cycle modes. (RTTY, SSTV, AM ...) Let's not give that up
> for fear of
> overdrive damage - a front-panel mode switch with a 3dB 50+ watt
> attenuator could
> serve both needs.
>
> 73,
> Jim N7CXI
>

With an extra SO-239 on the rear panel and a coax jumper, the amp 
manufacturer could provide a "loop-thru" for an external power 
attenuator. This would allow the user
to tailor the drive requirements of the amplifier to their transceiver 
output characteristics by selecting the appropriate attenuator value.

73, Mike W4EF.....................



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