zsmith3rd(at)earthlink.ne
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 Posted: Wed Jul 04, 2007 7:45 am Post subject: GPS off topic |
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do not archive
Paul,
Comments excellent, however I would add one bit: Never buy a portable GPS that does not have provision for an external antenna and external power.
Most have a female BNC which makes it really easy to connect the outside antenna, even if the antenna is just attached with Velcro atop the instrument panel looking up through the windshield.
We've installed many permanent-mount units in commercial vehicles....there are several styles of mounts available including L-brackets, 3/4" hole, etc for the antenna. Lots of them are centered on top of the dash against the windshield and are therefore not subject to weather-related problems.
Point is, the separate "external" antenna doesn't necessarily have to be outside in the weather, but it does offer a better view of the sky than a rubber ducky, and with the length of coax supplied, you are free to move the portable GPS around in the cockpit for better viewing in glare situations. Most antennas we've installed were about 2" square and less than 1" tall; a compact package.
Regards to all
Zed/701/R912/90+%/etc
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