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[aprssig] GPS OEM modules

Gerry Creager N5JXS gerry.creager at tamu.edu
Sat Dec 25 22:43:28 UTC 2004


At least the Laipak, Garmin, Motorola and Trimble units provide DC to 
the antenna...

I've had stellar results with the Motorola.  I've not used the current 
version of the Lassen, but my results with regard to positional noise 
with the older Lassen receivers was "not consistent with published 
Trimble results" on several receivers.  Limited Laipak and Garmin 
experience...

gerry

Robbie - WA9INF wrote:
> Scott,
> 
> Might I suggest providing power to the antenna since these antennas 
> offer superior reception, of course you already thought of that???
> 
> <g>
> 
> Robbie
> 
> Scott Miller wrote:
> 
>> I'm looking for GPS module suggestions for a new TNC/tracker design -
>> something that can be plugged in easily as a daughter card and will 
>> provide
>> an SMA connector for an external antenna, since it'll be in a steel box.
>> There are some nice solderable modules, but I'd prefer a user-installable
>> drop-in option.  Does anyone have any suggestions, or comments on any of
>> these?
>>
>> Motorola M12+ Oncore
>> Trimble Lassen LP
>> Laipac TF-10 or UV-40
>> Garmin GPS 15L
>> u-blox SBR-LS or RCB-LJ
>> Others?
>>
>> The Laipac TF10 is looking like one of the best options so far - it's 
>> small,
>> has a simple pin header connection, and provides a straight SMA out 
>> the back
>> for an active antenna.  Haven't used one before, though - I'll have to 
>> pick
>> up a sample or two.
>>
>> Scott
>> N1VG
>>
>>
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>>
> 
> 
> 
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-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Page: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843




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