[NLRS] Bringing my upgraded solar charged van tomorrow

[tom ring]

I'm sorry I can't tell you much about inverter noise although I know some can 
be very noisy.

I wouldn't be running the inverter while on the air (12 volt direct feed) so I 
only care about charge controller noise.  Which is huge.  S8 on 20m with the 
front end pad turned on on my FT817.  So I have added a switch to the panel hot 
line so I can turn the whole system off when I want to listen.

The good thing is that I can recharge the current AGM UPS battery in around 4 
hours from flat dead, which it will never see.  It's a 66.7 AH glass mat $300 
super performance UPS battery.  Got it for free brand new 7 years ago and still 
acts like new.  I may replace it, or parallel it, with a group 36 or 37 AGM.  
That would see me at roughly 150 to 160 AH at 12 volts, with 80 AH of useful 
charge.  That's a kilowatt-hour for the overnight which is a lot when camping 
in a VW Westphalia Vanagon.

tom

On 14 Jul 2012 at 8:12, John tf wrote:

> 
> Tom ,
> More info on the inverter would be nice , looking to see which ones are noisy 
> or not ?
> John
> KD0CAC
> 
> On Fri, Jul 13, 2012 at 9:10 PM, tom ring <taring at taring.org> wrote:
> 
> 
> I upgraded the solar system on my VW Vanagon.
> 
> I now have 180 watts of panels and an MPPT charge controller giving 95 to 97%
> charge efficiency. As opposed to PWM controllers at 50 to 60% efficiency or
> analog controllers at even less.
> 
> I will have it at breakfast tomorrow if anyone is interested in looking at the
> installation.
> 
> I also changed out my old inverter for a 90% efficient pure sine wave inverter,
> 
> And the bad thing is it makes lots of noise at HF. I've attempted to address
> the problem with lots of ferrite and capacitors and have gotten the noise down
> by about 1 S unit.
> 
> tom
> K0TAR
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