Whew! I nearly gave up on this project several times. I can’t believe how long it took before I finally got it working right, but the EchoLink project is on the air and functioning the way it should. The audio is still a little low. Maybe we can find a way to boost it a little more.
I always seem to get tripped up by the less than obvious solutions. For example, the audio delivered back through the Internet to the end user was terribly distorted and I couldn’t figure out why. The solution? Turn the volume slider on the microphone input all the way down. I would have thought that would eliminate the audio altogether, but no! Instead it took out all the distortion. Go figure!
Anyway, there’s still more to do. As you can see, it still needs some tidying up! LOL
How did you go about getting the receive audio from the Maxtrac to the Line In on the computer? That is the issue I have had with my UHF Maxtrac with setting up an Echolink node.
Hi Jacob! I used this cable http://www.ebay.com/itm/Cable103-Motorola-16-pin-Maxtrac-GM300-VHF-UHF-Repeater-/120350836867?hash=item1c05780883:m:m0xsju7kmrQ1LbOyj858E2Q and programmed the radio to put all the necessary signals on the rear accessory connector. Of course you need a 16 pin radio to do that. Also you have to set JU551 on the radio’s logic board to position B so that the receive audio on pin 11 of the accessory jack is muted when no signal is received. Hope this helps and good luck with building your node!
Wow, that connector is much cheaper than buying the parts off Mouser and building one myself. I am building a couple 440 repeaters using Radiuses and GM300s, so I am going to need a few of those.
Thanks!
AD0JA
Glad I could help! I’ll be interested in hearing your experiences in building the repeaters. I’m interested in constructing one here too!