PowerGenius XL - PTT Options?

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  • Updated 2 years ago
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I plan on using a Palstar AT-Auto tuner between my antennas and the PowerGenius.  It will be used mainly for 40 meters to flatten the SWR.

Will it be possible to use the traditional PTT via the RCA jack along with the ethernet control connection?

I want the PTT to be interupted when the Palstar's motors are churning towards their predetermined position.

Thanks in advance.

Rich - N5ZC
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Rich - N5ZC

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Posted 3 years ago

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Steve - N5AC, VP Engineering / CTO

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Official Response
There are two basic ways to do what you are trying to do. 1) keep PTT from keying the AMP while the tuner is tuning.  2) Prevent the flow of RF from the radio while the tuner is tuning.  Most people go to the first idea first, but the issue here is that the radio can still put out 40-50W which will go through the amplifier if it's PTT is not enabled.  I think the better way of doing this is to run a line from the Palstar to the FLEX-6000 TXREQ input line.  You will have to enable the input and set the polarity in SmartSDR or the Maestro.  Then when you key the radio, it will assert PTT which will tell everyone you want to transmit, but no RF will be emitted until the TXREQ line is released.  

The same goes for a SteppIR or anything that potentially is adjusting and needs to have RF held up until it is finished tuning. This is also how amplifiers can hold off RF if they need a longer time to key after receiving PTT.