The Motorola Micor Station with the battery charging / float option has a built-in 'beep' circuitry that beeps when the station is running on battery.
When you hear that tell-tale 'beep' during every transmission, you know you are on battery. You could use a CTCSS tone instead - the only time the tone is transmitted is when the station is on battery. There, you have two suggestions, Hope this helps, Neil - WA6KLA Steve Grantham wrote: > > Sounds like that kind of duty cycle would just help the battery run down > more quickly. You might consider that type of automatic signal may not be > appropriate for the service. Maybe you just need a beep after repeater > activity? Maybe something with a 555 timer could be built up? > > Steve > > ----- Original Message ----- > From: "Kevin Bednar" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Sunday, October 17, 2004 9:22 PM > Subject: [Repeater-Builder] Power monitor question > > > > > > > Hey guys, quick question for you. I'm sure someone has done this before. I > > had to make an emergency call to a mountaintop repeater site this evening > > for one of the local EMS squads because the link system stopped working. > It > > turns out the power supply breaker popped due to a surge and they have > been > > running on battery backup for the last 3 days and they finally died. What > > I'm looking for is some type of stand alone power monitor to let me know > > when the repeater is on battery backup. The controllers I use for my ham > > gear have this built in, as do most ham controllers, and will change the > > courtesy tone if it is on battery backup. However, this system is using a > > couple of Motorola mobiles and a RICK unit. What I am looking for is > > something I can interface into the 16 pin accy connector that will key one > > of the radios like once a minute and send a beep out so the listeners > would > > be made aware the system has lost AC power for some reason. Anyone know of > > any devices like that? TIA to all. > > > > Kevin > > K2KMB > > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
