Andrew:
This is exactly what we do at Field Day every year. We "search and
pounce", so our transmit duty cycle is relatively low, but after
operating all afternoon, the 7 Ahr battery used with the QRP K2 is
almost fully charged (assuming sunny weather, of course). We use two 5
Watt solar panels in parallel, each costing less than $40, hooked up to
an inexpensive gelcell charger, to keep the battery from overcharging
(probably not necessary with these solar panels).
73's,
John AA0VE
Paul wrote:
Andrew,
When reading the other posts and seeing those large Solar Panel
wattages, I think they are using a K2 but with the 100W option. I
can't imagine needing a 33W solar panel to power the base K2 model. On
a nice day, I guessing you could hook up a 7 Ahr gel cell and have it
charged with a 5-10 Watt panel and work for a long time. The battery
supplies the TX power when you need it and during the RX cycle the
Solar Panel is catching it for power used.
You might try posting your question on the Yahoo QRPSolarPower newsgroup.
73,
Paul
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