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[aprssig] more kayak and aprs

Jan T. Pharo la2bba at jpharo.net
Thu Aug 28 14:26:18 UTC 2008


jimlux <jimlux at earthlink.net>, Thu, 28 Aug 2008 05:42:45 -0700

>So, another approach to the desire to
>a) know the position of the kayak
>b) get it to something like FindU
>
>is to get a marine VHF radio with DSC (which can send a GPS position) 
>for the kayak, and set up a DSC receiver in the car, tied to a APRS 
>transmitter.

You will probably have the same problem with the marine VHF (160 MHZ)
as with your 145 MHz amateur equipment: same frequency (2m), same wave
distribution properties.

The signals from a 5W handheld marine trx won't reach your car unless
the 5W handheld amateur trx does the same.

calls with position om marine channel 70 will probably reach the
coastal station, but won't be retransmitted from there unless it's a
distress signal (AFAIK from being a marine VHF user). So there might
be practical issues in addition to the possible legal ones.
In the area you're talking about, is there a hilltop digi which cover
the area where you will be navigating? In that case, your amateur APRS
signals will be digied from there and reach (1) your car; (2) all APRS
stations within hearing range of the digi, most probably also some
Igate.

-- 
73 de Jan, LA2BBA
Hvaler, Norway




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