"Wout B" wrote in
:

Hi,
Talking about "decent" multiplexers, all our NMEA multiplexers have
"automatic GPS back-up switching" (plus many other NMEA sentence
management features). Read about it he
http://brookhouseonline.com/gps_backup_switching.htm . I have
been playing with the idea to add a buzzer to warn the user when it
switches to the backup GPS. As the "no GPS data" detection is already
present, this is very simple to do. If there is sufficient interest,
we'll include it as a standard feature. If you want it NOW, we'll add
a buzzer to the present model for a small charge if you decide to buy
one. Wout
Brookhouse

I'd rather see shielded connectors so I can run shielded pair cables and RF
bypassing of all inputs to keep the HF SSB from screwing all the NMEA crap
attached to it. Shielding everything would also make it so we could HEAR
the HF receiver and get our WEFAXes without the constant drone of NMEA
radiated interference from all the unshielded, unbalanced connections with
just open wires sticking out of things. NMEA needs to get its act together
and enforce some standards on its members....

Of course, we could dump all this proprietary crap and just wire the boat
for Ethernet, negating the need for multiplexers in 1970 serial
connections. Ahhhh....addressable Ethernet instruments all speaking the
SAME language through a good $49 wireless Netgear router to the wireless
laptop in my berth....(c;