Amplifier Auto PTT

KL4QG

AUTO PTT KEY START no RCA cable needed AUTO BIAS SWITCH Using a CLASS AB LDMOS MRF1K50H Power Trans Has anyone amplifier on flex Joe Have few questions

KL4QG

Any help please

Thomas Berner

What is your Question/Problem? I am using an old Henry 2K2 with my 6400. Only tx1 relay output is needed to  control the linear amp keying,  works great here.

73
Thomas
DF1TB

KL4QG

I was asking if ok use transmitting sensor - PTT relays on amp -/within out Normal use of RCA cable from radio to amp- Sounds that how your Henry works My amp Class A/B 10-160 amp but works like CB amp Coax from transmit Flex 6400B to Amp

Thomas Berner

I guess you want to use a RF Vox in the amp, this should work. It will be no difference for the TRX.
I used a RF Vox in a RM Italy HF150 with another transceiver, it never worked satisfactorily due to the poor function of the amp. I sold the amp for this reason. Maybe your amp is better.
73
Thomas
DF1TB

KL4QG

it works with rf sense. have circuit that only when you give drive the amplifier start

Thomas Berner

Yes that is a RF Vox.

KL4QG

Ok I’m dumb with these things ? I never had problems using CB amps lots them up to 800 watts 40 chan below Chan 1 about 26405 ssb it was fun for years about 1984 than FCC got mad for some reason fined 50 people in my area NJ My dad and I got lucky-but we both than Got Ham licenses to make it legal we than talked Legally on 28400 ssb all Hams were illegal CBers Operators at one time but they are afraid admit it

KL4QG

I starred a post about Mars transmit and Flex employee made comment and my post was locked up no more posting why, Cannot we speak our minds here if that case please anyone want buy my 6400M I’m not being edited here it was not me posted a comment that got my thread locked - I’ll buy Elecraft K3s and be done with Flex is this the way USA headed offended people rule !!!!