General Category > How to
How to -- SHTF emergency power
GDP:
All the radios in my shack are operated on a solar power system exclusively.
asatrur:
Once I find my dual-band mobile unit and get it running, my next step is backup solar power for my rigs.
Fat Clyde:
http://www.tractorsupply.com/15-watt-solar-12v-battery-charger-kit-with-7-amp-charge-controller-8500020 I'd considered this with deep cycle marine batteries. Not sure what kind of talk/receive time I'd get out of it.
GDP:
--- Quote from: Fat Clyde on February 15, 2012, 07:03:44 PM ---http://www.tractorsupply.com/15-watt-solar-12v-battery-charger-kit-with-7-amp-charge-controller-8500020 I'd considered this with deep cycle marine batteries. Not sure what kind of talk/receive time I'd get out of it.
--- End quote ---
You would probably get a few hours of listen/talk from a full charge in the batteries. However, with that size solar panel, it would take a loooooooooooong time to recharge the batteries. For every minute you transmitted at 100 watts, it would take over six minutes of maximum sunlight to replace the energy, and that's not including any losses. In the real world, you can't "neglect friction" as many physics problems instruct. ;)
KF7QGM:
Every ham radio I have is powered with 12v, I have 3 deep cycle batteries and a solar charger.
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