The manual with my Garmin GPS48 states that it will drive 4 listeners. I
have it connected to the autopilot NMEA input, VHF DSC input, computer
input, and Pactor IIe input. Works OK.All devices get and process the
GPS NMEA sentences.
Kelton
s/v Isle Escape

Rodney Myrvaagnes wrote:
On Mon, 16 Aug 2004 19:50:12 +0200, "Steve Lusardi"
wrote:


Lisa,
NMEA interfaces are slow and bit serial (EIA RS-232). The protocol is very
basic and there is no provision for either addressing or data collisions. As
you stated, your solution is incorrect, the device to use is called a
statmux or statistical multiplexor in general. Specifically, there are
multiplexors available for this purpose that prevent data collisions and
allow orderly sentence broadcast. Contact a qualified nav equipment dealer
for further info. These devices are inexpensive and available.
Steve


Since Lisa was only proposing a single "talker" a mux is superfluous.
No collisions could occur. The only issue is whether the two loads
would reduce the signal too much.

But, since you mention it, where are there inexpensive muxes? I had
one once until it was hit by lightning, but it was very expensive at
the time.

Thanks




Rodney Myrvaagnes NYC J36 Gjo/a


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