Re: multiple vehicles tracking each other
- From: John <jlwsecure-usenet5@xxxxxxxxx>
- Date: Sun, 08 Jan 2006 03:45:48 GMT
"Gerard M Foley" <gfoley@xxxxxxxxxxxxxxx> wrote in
news:SWXvf.12695$tR5.10217@xxxxxxxxxxxxxxxxxxxxxx:
>
> "Eric Anderson" <eganders@xxxxxxxxx> wrote in message
> news:1135023486.332374.207490@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> Is there a product that uses GPS and wireless (say, Wi-Fi) to allow
>> several vehicles to track each other on a screen so they can see
>> themselves and a couple of other vehicles with the same equipment?
>
> Amateur radio uses a system called APRS which does this:
>
> http://www.cave.org/aprs/
>
> It should be possible to adapt this to other radio services, such as
> FRS and GMRS.
Negative. GMRS regulations forbid this type of communication. Data
communication is forbidden by regulation. The *only* exception is a
waiver granted Garmin for its GPS/GMRS units.
GMRS regulations forbid any non voice communication See sections (e) and
(f) below::
-------------------------------------------------------------------------
-----
Sec. 95.631 Emission types.
(a) A GMRS transmitter must transmit only emission types A1D, F1D,
G1D, H1D, J1D, R1D, A3E, F3E, G3E, H3E, J3E or R3E. A non-voice emission
is limited to selective calling or tone-operated squelch tones to
establish or continue voice communications. See Sec. 95.181 (g) and
(h).
(b) An R/C transmitter may transmit any appropriate non-voice
emission which meets the emission limitations of Sec. 95.633.
(c) A CB transmitter may transmit only emission types A1D, H1D, J1D,
R1D, A3E, H3E, J3E, R3E. A non-voice emission is limited to selective
calling or tone-operated squelch tones to establish or continue voice
communications. See Sec. 95.412 (b) and (c).
(d) An FRS unit may transmit only emission type F3E or F2D. A non-
voice emission is limited to selective calling or tone-operated squelch
tones
to establish or continue voice communications, digital data transmission
of location information or text messaging.
(e) No GMRS or CB transmitter shall employ a digital modulation or
emission.
(f) No GMRS, CB or R/C transmitter shall transmit non-voice data.
---------------------------------
Evidently, FRS will allow this type of emission.
.
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