[aprssig] Suggestions for Automatic Power Off/Power On circuit for mobile rigs?
aprs at mulveyfamily.com
Tue Nov 15 14:16:12 CST 2005
Does anyone have any suggestions for an automatic power off circuit, for
a mobile rig?
I'm installing my FT-8500 in my trunk, and would like to be able to have
the rig power off after, say, 10 minutes, and power on when the car is
Having it power on is easy enough - I'm just going to insert a relay
into the cigarette lighter line that energizes the power lines that I've
passed conveniently next to it. ;-) But I'd also like the rig to have
a delayed power off, so that it can get one last posit out.
I'd also like to have my GPS powered off, as well, since it draws about
100ma, and I'd like to keep battery drain to an absolute minimum,
especially when it's -30 degrees out. Therefore, using the rig's
built-in APO is possible, but that doesn't help me with the GPS.
I've seen the APO2 at http://www.aprsworld.com/apo/ , and I'll probably
breadboard one up, but I'm interested in other solutions, as well.
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