Re: [IRCA] DC Operation of General Coverage Receivers

["Doug Pifer - KE6GMM" <oregon4wd@xxxxxxxxxxx>]

Rick,
Thanks for the tips. This is good info.  Your right about getting a deep 
cycle battery- makes all sense.  I really haven't done any of the electrical 
math yet on what kind of power /amp/ draw requirements my receiver / loop is 
going to need. I don't intend to power up anything else.  Getting a couple 
of all night sessions out of one charge would be quite nice.

I could see that running a DC set-up in a remote location would help one to 
quickly develop an efficient arrangement.

One other advantage of being away from the house, is my oldest son won't be 
able to surprise me by turning on the microwave right at the ToH (any hour), 
hi.- he has such great timing... it's incredible or should I say the noise 
is incredible!
73- Doug

> You might want to re-think the choice of a car battery for your 12 V
> power source. Car batteries are not designed for deep-cycle use and in
> as few as 12 full discharge cycles you'll have a shot battery. Grab a
> good deep-cycle battery instead. They are designed for the type of
> charge/discharge cycles you'll be using. Most of them have nice carrying
> handles on them too.
>
> I realize that you aren't going to be pulling a lot of power from the
> battery with just your receiver, loop, and a few accessories, but if you
> have to purchase the battery it might be lots cheaper in the long run to
> get a battery designed for your application. The price differential is
> almost negligible.
>
> You're probably not going to need to charge the battery during use. You
> should have plenty of battery capacity for your listening sessions.
>
> I used a setup similar to the one you're thinking about for years in a
> very remote listening location in Michigan's Upper Peninsula, way way
> off the grid. I charged the battery from the trailer connector charging
> terminal on the pickup truck on my runs into town. I got many days of
> use from a single charge.
>
> Now talk about a low noise floor...
>
> Rick Kunath

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