2MLDPA doesn't power up

Doug

Mike-VA3MW

Doug

Thanks - did that.  Also hoping for a reply from someone who is using this amp with remote config and perhaps SmartSDR v3.0.27.

John WA7UAR

So with my unit I ordered the “remote control” option which includes an accessory port plug in — with one line going to a USB dongle (that plugs into the back of the Flex) and another wire that I soldered to an RCA type jack that I plugged into one of the TX female ports on the back of the Flex. Both are needed. The SmartSDR software is told about the USB Cable type (LDPA as you mentioned) but it is my understanding that the RCA jack carries the Flex signal back through the 2MLDPA accessory port which triggers the device to power on.

It receives its power-on signal as long as the Flex is showing a 2m frequency. And when it is powered off it will default to pass-through any other IF signal along to another amp (for example the Q5 440MHz amp.)

This is all from memory at the moment but I think this is correct. There is no “power switch” because power is applied (via an internal relay) only when a correct frequency is entered. It was working using 2.4.9 and it is still good for me with 3.1.7.

Can someone give a better explanation for Doug?
Cheers to all.

Doug