[NLRS] RA30H2127M FET RF Module Idle Current?

Scott acepilot at bloomer.net
Thu Dec 25 22:29:18 EST 2008


Thinking about whipping up a medium power amplifier for 222 MHz.  
Thinking about using the RA30H2127M RF Module.  It looks like at 
(basically) minimum power output, the module draws an Idd of about 5A 
and about 6.5A at maximum output.  So, if I want to use this as a 
linear, should I adjust Vgg to get 5A with no RF drive?  I am guessing 
that might be the way to set it for linear operation, based on the 3W 10 
GHz PA I just built.  It uses a FET as well and I set idle current to 2A 
with no drive and it draws about 2.5A at max power out, so it appears 
the Idd at idle is not too far from Idd at max power to make it linear.

-- 
Scott N0EDV
http://corbenflyer.tripod.com/
Flying Corben Junior Ace - Building RV-4
Gotta Fly or Gonna Die




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