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[aprssig] D700 GPS connection

Stephen H. Smith wa8lmf2 at aol.com
Tue Oct 3 19:41:00 UTC 2006


cak at dimebank.com wrote:
>
> Those Astrodyne DC/DC units are very sweet looking! Any idea how well
> they deal with the wide voltage swings in old generator/regulator
> vehicles? My "battery" voltage sometimes dips to 9V, which plays
> havoc with a few things that want "12V" in.
>
> 73 de chris K6DBG
>
> _______________________________________________
>   

Many of the Astrodyne units are available in wide-input-range versions 
for a few bucks more that can tolerate an input that varies over a 2:1 
range.  I am currently using several 9-18 VDC input/ 12 VDC out 
(isolated - no common ground) and 9-18 VDC-in/5 VDC-out  units in my 
mobile SSTV LiveCAM installation.  A 1-watt 9-18in/5 VDC out unit  
powers my permanently-installed car  "house GPS" (by contrast with 
portable or mouse-type units I might temporarily place on the dash)  It 
which supplies 4 different devices with data with excellent results.  
The GPS never hiccups, even on voltage sags when I crank my Jetta's  TDI 
turbo-diesel engine.



--

Stephen H. Smith    wa8lmf (at) aol.com
EchoLink Node:      14400    [Think bottom of the 2M band]
Home Page:          http://wa8lmf.com


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