How to Key ALS-500M Amp with FlexRdio 6300

Bill Taylor

ALS-500M Amp with FlexRdio 6300

Mike va3mw

Essentially it is a 1 wire connection.  How far did you get?

Well, 2 if you count the Coax.  

Connect the Relay out of the amp to the amp keying line on the 6300 with an RCA cable.

Use a shielded audio type cable with standard male phono (RCA) connectors to connect the RLYjack of the ALS-500M to the transceiver or transmitter normally open amplifier relay terminal. 

This connection has 12 volts open circuit and supplies less than 100 mA of current when pulled to ground.

Mike va3mw

Bill Taylor

Mike:
That is exactly how I connected the 6300 to the AMP.  
6300 Phono connection TX to AMP Phono connection RLY.
6300 will Not Key the AMP.
To make sure the Cable is ok, I unpluged the 6300 end and sorted it and that keyed the AMP.
Just an't figure out the problem???
Tnx & 73, Bill  K8TBW

James T. Whitehead

Dear Bill - with the latest software I have to enable the TX port that you are using on the radio each time.

John n0snx

Start SSDR..... click on settings.....click on radio setup.....click on transmit.....click on RCA TX1 to enable hit enter on the keyboard and that's it...

Bill Taylor

Did that and 6300 now keying AMP.
Tnx & 73,  Bill  K8TBW

John n0snx

GOOD glad it worked for you... Now you can really enjoy radioing with the new Flex