Boat Forum / Electronics / June 2004

Assuming identical setups and a perfectly vertical antenna, what
percentage increase in range would be likely as a result of changing
from a 3db to 6db VHF antenna?

is it possible to link 2 or more car alternators driven from the same engine
to a single battery
thankyou David

Has anyone ever had any experience with or heard of a Nyloc nylon lined
nut backing off a bolt?
Here is the situation:  I import a very good anchor called a Spade from
Tunisia.  They come in two pieces a shank and a fluke which mate

I just bought a 1964 16' wooden boat. It currently has no onboard power.
What is the best way to proceed ?
The boat will mostly be used in daytime and on lakes and local waters.
Should I go with a 1 battery system or 2 ?

Stupid question time...
If I have a 100ah battery how much power can I expect to get out of it... is
100ah the total battery capacity or it's useable/available capacity. My
understanding is that a normal lead acid battery shouldn't be run too flat,

I am shanging the engine in a Bayliner 2985
Orginal engines is two V8 petrol i am putting a yanmarin diesel in it.
My problem is that i dont have the electrical drawings for  this boat
Can anyone help or give me some sugestion where to get them

I just bought a used boat equipped with a Humminbird Wide View but the thing
reads out in metric units (depth in meters). I've read the manual backward &
forward and played with the controls until my finger was black and blue but
for the life of me can't figure out how to get it to ...

I'm just getting back to boating after being away for (a long) while.  Do
you folks who use electronic charts use raster charts or the vector charts.
From what I can see it looks like the raster charts are closer to the
"paper" charts I am used to.

Don't know if this is the right place to post this or not...
I have a job I'm doing for someone on their boat and they have some
LaserPlot ChartNav software.  However, I'm trying to install it on
their new PC and wanted to contact LaserPlot for support.

I've seen quite a few posts on this subject, and would like to add my
$.02.
About 10 years ago, I was involved in the design of a telemetry device
that used NiCADs for backup (up to 23 hrs.).  I was deeply concerned

The LCD display on my 3030 depth sounder (20 years old) is too faded
for reading and Datamarine doesn't carry a replacement part anymore :(
If someone has a broken 3000 or 3030 for resale (LCD are the same...)
just tell me because I will be able to get the LCD from one of those

due to problems with my companys mailserver i have not been able to
receive
the answers to my question. so ill ask it again
After having my boat stored for winter in a garage in northen of

Is Raytheon still making Apelco branded gear? I have a Fishfinder
460, and the display is cracked to the point where it no longer
displays anything. I'm not having any luck tracking down a replacement
display or control head.

I am looking for an inexpensive tranceiver for my sailboat.I am
rapidly running out of money and need a cheap reliable rig.I have just
insulated my backstay(37 feet).aAny ideas? Thanks,Eric.

Just bought a used boat and it has a Autohelp ST50 plus
any one know how to get the speed to read in MPH and not in knots per
hour?
Thanks