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[aprssig] Garmin GPS-18 power saving.

scott at opentrac.org scott at opentrac.org
Fri Apr 28 18:45:53 UTC 2006


The cigarette lighter plug?  I'd just skip it and build a 5-volt supply
myself.  The LVC model doesn't come with any regulator at all.

Don't forget the SNSRCFG utility - you can set some parameters there that
might save some more power.

Scott
N1VG 

> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org 
> [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Robert Bruninga
> Sent: Friday, April 28, 2006 11:37 AM
> To: aprssig at lists.tapr.org
> Subject: [aprssig] Garmin GPS-18 power saving.
> 
> I just reduced the 60 mA of my GPS-18 to 40 mA
> by clipping out the LED in the cigarette lighter plug.
> 
> Thats a power saving of 33% and is significant
> in our ocean going APRS buoy we will be deploying
> soon.  I was amazed. (now I hope that the LED
> is not somehow otherwise involved in the circuit.
> We'll see.
> 
> Bob, WB4APR
> 
> 
> 
> 
> 
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