[Alexandria Radio Club Reflector] Handheld Radios -> QRO

Ken brmara at ke2n.us
Wed Dec 29 23:19:54 EST 2010


Not sure if anyone is interested - but these units keep appearing on eBay at
a really low price

 

#300509511068

 


"900MHz 300 Watt Linear Power Amplifier MRF897/MRF899"

	

They actually don't safely make 300 watts, but they sure do make 200 watts -
with 5 watts of drive.

You'll need a DPDT coax relay and a 24-26 volt power supply  rated for 20
amps to put it on the air.

 

To put them on 902, the mods required are quite simple - to go above 903
you'll need to remove the output circulators and replace them with a small
piece of coax. This is something I have not tried yet (W4BRM input is on
902.625)

73

Ken

KE2N



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