[aprssig] Tesla Field Day mode (versus the rules)

Gregg Wonderly gregg at wonderly.org
Tue Mar 19 21:06:37 EDT 2019

Has anyone investigated using some of those 30 farad car stereo capacitors for power surge management out of a large battery w/solar or even a Tesla or other EV?

Seems like some of those caps with some resistor current controls such as large incandescent bulbs etc.


Sent from my iPhone

> On Mar 1, 2019, at 7:02 PM, Nick Waterman <tapr at noseynick.com> wrote:
> Robert Bruninga wrote:
>> As to power, it looks like operating at more than 150 Watts divides all
>> scores in half, and so generally  it is unlikely that many stations haul
>> out kW linears to Field.
> That might explain why our score went UP in the last few years despite (or presumably BECAUSE OF) losing a kilowatt station. He used to score a lot more than any of the rest of us, but not more than the rest of us ALL ADDED TOGETHER   :-D   - we also lost one of the main sources of cross-band splatter of course!
>> A plugin hybrid with 20 times the battery capacity has been demonstrated
>> to run a poertable operation for 6 hours and still only used half the
>> battery capacity without an engine start.
> Yeah Pat's Outlander was 17hrs to use 80%, at which point the engine/generator kicks in for about 20 mins to recharge it. Didn't last the whole weekend though.
>> So it looks like this topic is worthy of a closer look to all the details
>> and nuances against the variety of rules to optimize the solution.
> We're one of those "have fun" FDs rather than point-pinching. It was fun to prove we COULD operate at least 2 stations and a shelter for 17hrs on a PHEV battery alone, and an estimated 10 days on a PHEV with a full tank of gas.
> -- 
> "Nosey" Nick Waterman, VA3NNW/G7RZQ, K2 #5209.
> use Std::Disclaimer;    sig at noseynick.net
> I can please only one person per day. Today is not your day.
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