If I'm reading this correctly, on receive, you're drawing 240 to 280 watts.
At 12 watts, you're drawing 360 to 420 watts.
For 50 watts out, you need more than 800 watts in.
Someone else suggested that a 60 amp-hour car battery would probably run
the rig for a day. If I'm reading this correctly, you'd do no more than
3 hours if you did not transmit.
For lead-acid batteries, you don't want to exceed the 10 hour rate, so
the smallest acceptable battery would be over 200 amp-hours, and only
for just-receive.
Something seems a little off.
-- Lynn
On 3/4/2014 2:41 PM, Paul Grigorieff wrote:
My K3, on receive, with the KAT500 in-line, the P3, and my massive 70A
Astron p.s. powering the K3, drew about 20A DC. Putting the K3 in
transmit mode, with just under 12W drive (so as not to kick in the
100w amp) required about 30A DC. Boosting the output to 50W drew
about 70A DC. Running it "wide open," at 100W out, required about 80A
DC. And finally, turning on the KPA-500, with 15W drive to yield 300W
out, required 150A DC.
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