[BC] Freq agile AM transmitters

[RichardBJohnson@comcast.net]

They exist. Try 
http://www.kandelelectronics.com/manufacturers/582/  (Amplifier 
Research). You can use
any frequency synthesized signal generator with an external AM 
modulation input for the signal source. When choosing power, remember 
that 1 kW is really 4 kW peak, 5 kW if you want 125% modulation.

--
Cheers,
Richard B. Johnson


  -------------- Original message ----------------------
From: WFIFeng at aol.com
 >
 > By "Frequency Agile", I mean something where you flick a thumbwheel to the
 > required frequency, and press the "ON" button. You're there. *Not* 
something
 > that requires changing coils (or taps on coils) and tweaking 
various variable
 > caps... just like the modern Ham rigs: Just spin the VFO dial, and 
you're on a
 > new frequency. (seconds, not hours.)
 >
 > The idea being that you can just toss the unit into the back of the car and
 > trundle it to a sister station as an instant backup. Dial up their 
freq, hook
 > it up, and press the button. It would be even better in a 
multi-station setup,
 > where moving the input , output, and changing the freq would be all that's
 > required to get a failed station back on the air in mere minutes.
 >
 > Willie...