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Author Topic: Cost of Solar Powered QRP operation; rough estimat  (Read 848 times)
KB0KOQ
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« on: June 28, 2002, 03:11:30 PM »

   I read somewhere (think it was Gordon West) who stated that the cost of solar-powered equipment would run about $100.00/AMP.

   My question is, for running 9 Volts or less  for CW  Transmission & Reception, about how many Amps or fraction thereof is typical for operating on the HF bands?  -Thanks
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WB0E
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« Reply #1 on: July 11, 2002, 06:24:55 PM »

I don't know about typical, but a 100 watt HF rig typically uses a 20 A power supply
so if you divide directly for 5 watts that would give 1 A and that sounds about right to my rusty EE ears.

KAC
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KB0KOQ
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« Reply #2 on: July 13, 2002, 05:37:35 PM »

WB0E:

   Got that. Thanks.  Now I can plan to set up Solar Charging accordingly. Thanks for your help. -Bruce
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N0XAS
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« Reply #3 on: July 16, 2002, 03:54:05 PM »

I know my OHR-400 four-bander with a KC2 keyer/display draws around 1.3A in transmit at 5W.  It's not a paticulrly low power rig, drawing about 300-400mA on receive.  I understand some rigs are a lot more thrifty on battery power, but it's not a concern for me since I don't backpack it.

I have another QRP rig at home, an OHR Sprint 40 with a DC receiver and a couple of Watts out.  I'll try to remember to throw a meter on it while transmitting some time.  Both of them run on 13.8VDC from a linear power supply, by the way, though I have run them from SLA batteries as well.  No solar or wind power (yet).

72,
Dale
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