I just brought the Flex-6300 , I would like to run it on it on my Ameritron AS 572 tube amp need help on how to interface them

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Hugo Escalante

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Posted 2 years ago

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Mike va3mw

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It is the same as most amplifiers.  You need at least one RCA cable for PTT.  It goes from the keying line on the AMP to the TX line on the 6300.  

If you use ALC, then you'll need a second cable RCA cable.

Other than the obvious jumper RF Jumper cable, you are ready to go.

Mike va3mw
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Hugo Escalante

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Mike,

Not sure what jumper cables you talking about, can you share.

Thanks

Hugo
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George Molnar, KF2T, Elmer

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Just confirm the switching voltage and current are within the range the Flex can handle. You may need a small interface relay box.
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Ray Andrews, K9DUR, Elmer

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George,

I use an AL-572 with my 6700.  The switching requirements are definitely within the safe limits for direct keying.

73, Ray, K9DUR
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Hugo Escalante

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George,
Can you tell me what cables you using and connecting them?

Thanks 
Hugo
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Ray Andrews, K9DUR, Elmer

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The cables you need are:
1.  Coax jumper between radio and amplifier.
2.  Cable with male RCA phono plug on each end between the TX1 jack on rear panel of radio to the RLY jack on the rear of the amplifier.  Be certain to enable RCA TX1 in the transmit settings form in SmartSDR. 
3. (Optional)  Cable with male RCA phono plug on each end between the ALC jack on rear panel of radio to the ALC jack on the rear of the amplifier.  This cable is needed only if you wish to use ALC.  I do not.

73, Ray, K9DUR
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Hugo Escalante

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Thanks

Ray
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Mike va3mw

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Ameritron keying lines are 12V @ 100ma, well within Flex's relay limits.

file:///C:/Users/840G1/Downloads/AL-5...
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Mike va3mw

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Ameritron keying lines are 12V @ 100ma, well within Flex's relay limits.

file:///C:/Users/840G1/Downloads/AL-572.pdf