Batboard

Hi all,
I've been running all M branded mobile radios for last 20 years and they all came equipped for ignition sense so no problem. Now I'm looking to add a amateur 2m radio that I'd also like to follow ignition sense but I'm only working with B+ and B- leads. I was thinking of running the constant B+ off my M radios leads that I would put on a relay and then switch the relay with cars broadcast radio ignition sensed power lead. There a better way ? Anyone make a module to accomplish ignition sensed on/off ?

You can obtain relays from an auto store. Just don't use a horn relay. They are not made for continuous on service like your looking for. Then run the ignition on fed source to pull the relay coil on. Just remember to fuse the ignition feed wire going to the relay. Then fuse the 12 volt feed wire the radio will use before going to the relay contacts. Make sure your fuse going to the relay is slightly larger than what the radio requires.

Jim

Thanks