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How do you connect an amplifier to the Flex-6500? I'm using an AL-811H
John Betner
Member
Hello, I am trying to get my AL-811H connected to the Flex 6500 however not able to get the radio to key the amp. Help?
2
Answers
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Maybe this is just a **** question but I haven't been able to figure it out lol0
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There is an RCA jack (actually 3) on the rear panel that serve as relay outputs to switch external devices, like amplifiers. Connect to the PTT in on your amp, and you'll be good. One warning, make sure the voltage and current you're switching is within the range the relay will handle, especially if your amp has a mechanical relay that might "feature" a voltage spike from th coil.1
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Also set up the TX Relay parameters in Radio Setup->Transmit for your radio too.0
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the transmit set up : Thanks Tim0
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John , the best way to connect the Ameritron 811H is to use a rig buffer like the Ameritron ARB-704. The amplier you are using is a tube job, the transmitter is an expensive transistorized transceiver. For 60 bucks you can't go wrong. Follow the instructions from Ameritron and you will be good to go.1
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You really should be reading the MANUAL 811H PDF pages 2, and 5. In the Amp instructions there is your answer The keying circuit is 12DC @ .100 ma .0
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For MINE, i use the Heil FS-2 for the EXACT same set-up, there is 2 wire on the pedal, 1 for the amp, 1 for the radio. The pedal KEY the Ameritron few milisecond BEFORE it key the radio !!!, this also permit the use of the TUNE BUTTON on the flex without keying the amp. so my LDG automatic tuner work at low power, when antennas is tuned, you just press the pedal and adjust the load and plate of the amp. few second later you are good to go :-)
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