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[aprssig] Wanted: small battery powered non-display GPS

William McKeehan mckeehan at mckeehan.homeip.net
Tue Nov 27 22:35:13 UTC 2007


Personally, I'd like to see something like this "Freedom Mini GPS":

<http://www.freedominput.com/site/index.php?page=shop.product_details&category_id=2&flypage=shop.flypage&product_id=9&option=com_virtuemart&Itemid=88&vmcchk=1>

with a bluetooth receiver that would strap to the side/back/bottom of the
TH-D7 allowing you to use the D7 without too much hassle. It would be nice if
it could be made to work with several receivers, so I'd wear the GPS, have a
receiver on my D700 in the truck, when I'm in the truck, it would receive data
from the GPS, when I leave the truck and take the D7, it would receive the
data from the GPS.
-- 
William McKeehan
KI4HDU
http://mckeehan.homeip.net

On Tue, November 27, 2007 3:24 pm, Stephen H. Smith wrote:
> Chris Kantarjiev wrote:
>> Thanks. I know about the 201, and I'd really like to spend less than
>> that. All I'm after is a GPS input for the D7; if I want a display,
>> I'll use my eTrex.
>>
>> chris
>
>
> It's extremely unlikely you will find what you are asking for since
> faceless devices, almost by definition, are used with external devices
> (and therefore with external power sources).  The self-contained
> battery-powered devices are intended for stand-alone operation, and
> therefor have local displays.
>
> The Foretrex is very similar functionally to the eTrex (I think it
> actually uses essentially the same firmware and displays), but it is
> much smaller and lighter than the eTrex which is why I suggested it.
>
> I suppose you could screw or Velcro a Garmin GPS18 or similar to the top
> of a 4-cell AA battery box and then place 4 MNiH rechargeable AA cells
> in it.  4 x 1.25 VDC per cell would produce 5.0 VDC which would be a
> direct match for the GPS-18 without inefficient regulators.    The GPS18
> only draws about 80-100 mA once it boots and locks so 2000-2500 mAH AA
> cells should easily power the device for 10-15 hours at a time.   [Don't
> try this with normal non-rechargeable alkalines since you would be
> producing 4 x 1.5 VDC for a total of 6VDC or higher out!]
>
>
>
>
>
> --
>
> Stephen H. Smith    wa8lmf (at) aol.com
> EchoLink Node:      14400    [Think bottom of the 2M band]
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>
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