Boat Forum / Electronics / January 2004

In my 1978 Swan 411 there is an old NECO autopilot.  I recently fixed
some minor faulty circuitry and it now works as it is supposed to do.
Too bad that it is a vintage device and, for example, does not have a
NMEA input, the course is set on an absolute 360 deg dial and there is

Can anyone tell me how beneficial a "dual beam 24/60 would be vs. a single
24deg?
Also, any opinion on the Hummingbird Matrix 17/20/25 finders?
Thanks,

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Does anyone have suggestions on how to provide NMEA  data to several
"listeners" for example autohelm and radar. Here is the setup: I feed
several NMEA enabled instruments output to a laptop via a NMEA multiplexer
then, feed the NMEA data stream to an autopilot and radar using the ...

Well, now that my SSB is up and running, I have one more minor problem ( I
think). Whenever I key up the mike to talk, some of the electronics go nuts,
like the Link 20 (near the grounding foil), the VHF goes blank and one of
those "touch" 110 lamps goes on and off. The radio tech ...

For some reason my earlier message last week on this topic was never
posted.  If the Moderator removed it, PLEASE do not remove, this is a
boat electronics item.
Looking for a solid bronze battery post connector.  I purchased some

Does anyone know where I can get replacment pins for my stern light?
Thw two little pins that fit between the light pole and the bottom of
the assemble fell out.
Thanks!

There has to be a cheaper way to interconnect electronics.. I thought
Raymarine was expensive and difficult to deal with, then I upgraded from a
1720 to 1721 Furuno radar.. $35 to $50 for a NMEA or Compass cable.. The
only cable that is interchangeable is the power cable.

I am installing an " Acugauge" by Snake River Mfg. on my holding tank.
Is it necessary or "good practice" to use some kind of corrosion
protection on the exterior contact strips, and if so, what?

I have a 13.5 Boston Whaler with 40hp Yamaha that I used mostly in the
saltwater streams and marshes on the coast of South
Carolina.  I know absolutely nothing about them. This is my first
inquiry. What

I just installed an omni-directional TV antenna using RG59U coax, but the
picture on some channels is fuzzy.  During a test before permanent
installation, I used normal TV coax (black stuff) and the picture was fine
on all the channels.  Is RG59U the right ohm cable???

Can anyone suggest where this guy went wrong!
http://www.officeclips.com/clips/barge1.mpg

I have a Garmin GPSMAP 185 sounder and am trying to get the Waypoints and
tracks from the unit to the Pc. I have the proper connection from the unit
to the Computer and have tried to use easygps and flexgps to get the
waypoints and tracks to edit and save .Anybody out there who can ...

Need NAVI-SAILOR (TRANSAS) have sea charts World Wide (ARC Charts / C-Map)
If any able to help pls mail
Thanks in advance

Just watched us land, again, on Mars.  2.5G.  Very soft.  Lander's
made for 40G.  Looks like we rolled up, after all the bouncing, and
are on our side.
Simply amazing engineering masterpieces.  Too bad the Realvideo feed