Jim,
Thank you. And thanks to the others who
replied on and off list.
As much as I would like to have a larger
array for the house, that's not for this
QTH and a smaller unit is what I need to
find for my camping needs and I'll be QRP
(most likely barefoot), in the future when
out with the camper so lower wattage is
what's on the griddle. Looking at
Genasun's higher powered controller for
12V lead acid, 140W is the max it can deal
with. While it would be nice to have two
100W panels, I don't think that'll really
matter and 140W is plenty.
As it's known to be quiet, I'll order that
one and now I'll look for the most
efficient and competitive panel that will
suit my camping and home QRP needs.
Thanks for the helpful answers and the
time you all took to reply.
73,
Gary
KA1J
Slowly slogging into the 21st century...
> On 8/14/2019 9:57 AM, Gary Smith wrote:
> > As I'll be buying this sight unseen from
> > the web, any suggestions of an inexpensive
> > controller and panel that is known to be
> > essentially RFI clean & reliable?
>
> YES, and some installation advice. First, panels are not noisy, but
> charge controllers are notoriously noisy. The only ones I know of that
> are not are the MPPT controllers made by Genasun. They are only made
> for relatively small systems like the one you are probably thinking
> of. They have several models, designed for different panel voltages,
> charge currents, battery voltages, and battery type. I use them in my
> home station and for portable operation on FD, CQP, and 7QP county
> expeditions.
>
> The installation part consists of 1) using only twisted pair for the
> entire circuit consisting of battery(ies) and panel(s); 2) carrying
> both conductors through each part of that series circuit, breaking on
> conductor to add the series element; and 3) if antennas are very close
> to this wiring, adding a serious common mode choke, following the
> recommendations in
>
> http://k9yc.com/2018Cookbook.pdf for #12 THHN or NM wire for the bands
> where the antennas are very close.
>
> You will also want a good choke on the output of the generator.
> There's a design for a very good one on page 23 of the Jan 2019
> revision of k9yc.com/RFI-Ham.pdf
>
> 73, Jim K9YC
>
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