[AK-VHF] New UHF amp

Edward R Cole kl7uw at acsalaska.net
Sat Nov 26 17:28:21 EST 2016


Yesterday, I received a RF Concepts 4-310 linear amp in the 
mail.  Its used but amp works fine on UHF.  With 30w drive from the 
venerable FT-736R I'm getting 100w on 432.200 and 130w* on 
446.00.  *Turning down drive to keep at 100w.

The internal preamp does not appear to work and only adding more 
noise but the is non-issue with the fine receiver in the FT-736R and 
the fact I have 432 preamps for use with yagi's once I fix SWR issue.

Current using the ARX-270 11 dBd base vertical antenna.  I have a 
11-element yagi at 58-feet but line has high SWR somewhere.

Running 100w should make UHF doable with stations in Anch. and valley.

73, Ed - KL7UW
http://www.kl7uw.com
     "Kits made by KL7UW"
Dubus Mag Business e-mail:
     dubususa at gmail.com 



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