be careful using inverters.  I've used several, on two different trucks in
my span here,
and burned out the alternator in short order in both trucks.  One was a Jeep
Grand Cherokee, the latest a Ford Expedition with the high output
alternator....

Running too many amps through the inverters puts a REALLY heavy load on the
alternator...

I've used an inverter in the past to power laptop, trango, canopy,
routerboard and tranzeo setups in varying degrees.

I'm convinced that frequent usage of the inverters kills the alternator.

Now, I just leave with a laptop fully charged and a couple of charged dewalt
18V batteries that power my radio setup.  The dewalts last from 1 to 2 hours
which is more
than enough time.   If we're surveying at a customer's home, we use their
power to 
power the radios and recharge my laptop :)

R

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mark Nash - Lists
Sent: Sunday, October 29, 2006 11:53 PM
To: WISPA General List
Subject: Re: [WISPA] Powering 12-volt CPE via battery for site surveys

I use a 100 watt inverter that plugs right into the cigarette lighter power
port.  May not power the laptop (haven't tested) but the CPE will stay on
for much longer for an hour.

Mark Nash
Network Engineer
UnwiredOnline.Net
350 Holly Street
Junction City, OR 97448
http://www.uwol.net
541-998-5555
541-998-5599 fax
----- Original Message -----
From: "KyWiFi LLC" <[EMAIL PROTECTED]>
To: "WISPA List" <wireless@wispa.org>
Sent: Sunday, October 29, 2006 2:29 AM
Subject: [WISPA] Powering 12-volt CPE via battery for site surveys


> What is the best way to power a 12-volt radio for 30 - 60 minutes
> before requiring a re-charge? (solution must be re-chargeable via auto
> adapter)
>
> We are wanting to use an actual CPE radio with a 19dBi panel
> antenna, connected to an iPAQ/Axim so we are needing a re-chargeable
> power source for the radio.
>
> BTW, we tried a 9-volt battery but it only kept the radio powered up
> for 5 - 10 minutes.
>
> Would something like http://tinyurl.com/vgm4n work?
>
>
> Shannon D. Denniston, Co-Founder
> KyWiFi, LLC - Mt. Sterling, Kentucky
> "Your Hometown Broadband Provider"
> http://www.KyWiFi.com
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> ===========================
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