Boat Forum / Electronics / July 2004

I am looking to download a New York area map file of the water ways  for a
lowrance gps. The file extensions are .usr or .lcm.
Any help would be appreciated.  If anyone has one you can email it to me at
mlarkin2@optonline.net     Thank you             mike

Is DC lighting more efficient than AC???  The reason I ask is as a
result of looking at navigation lamp specs.  All the lamps output 40
candelas.  However, the 12v and 24v lamps are only 25 watts, whilst
the 110v lamp is 47W and 240v lamp is 53W.  All nav lights have the

Larry W4CSC wrote:
"I've never met anyone so full of pure bullshit in my entire life as
you, Gary.  It's simply incredible.
One hopes noone in their right mind will hire you as an engineer and

I'm trying to narrow down my choices. I told that greyscale works just
fine and that color lcd ,while nice, isn't nessasary. Any comments
from people who have used both? Would they think the extra money well
spent or should I get a bigger

14 yr. old Impulse combined fish finder, depth sounder and Loran unit
kept  turning itself off after I would start it.. After several cycles
of this, it emitted a loud squealing noise which only quit when I
clicked the off button.  Now it will not start at all.  Has ;it breathed

HELP
This has likely been covered before.
I want to purchase some affordable 2 way radios so that I can leave 1
at the cottage, and take the other in the boat so we can communicate

I am a newbie to the group, so ask your indulgence if I offend any protocols
here.
I have a Magellan 5000 GPS unit given to me. I think it is about ten years
old but it works very well. It requires either 6 dry alkaline AA batteries

Does anyone have a site to download map files?

My old AM/FM/CD is acting wierd, probably because it's not a marine
radio. I found a brand called "Boss" on eBay and wonder if they are any
good. Anyone have any experience with them comparerd to Jensen, Clarion,
etc.?

I have a 25 watt VHF that when it is turned from side to side or
flopped over and over, the transmisson breaks up. In order to isloate
any antenna and lead problems could I screw on one of those short
range CB antennas and key the mike for short periods for a check? I

Greets all... I've been working on a method to convert NOAA ENC charts to
work with my Garmin GPS.  I've gotten the process to a point where the
maps are pretty much usable.  I have a bit more information, some
screenshots, and a sample map at:

I have a magellan sportrax handheld gps and would like to install a larger
screen to flush mount in my boat.  Before I open this unit up, I would like
to see what would be involve to achieve this?    Have anyone done this and
if so, would you please give me a step by step info on ...

I currently have Direct TV and TIVO at my residence but am living on the
boat this summer and would like very much to have an equivalent setup on the
boat by bring my TIVO unit and 2nd receiver box to boa tan connecting them.
The object is to be able to record a program on the TIVO ...

Does anyone out there have a Raymarine Navcenter 600? Mine has strange
behavior. It turns itself off after 20-30 minutes of operation. I don't see
a pattern. At first I thought there might be an "idle timeout" where it
turns itself off after a certain amount of inactivity. Today, at ...

an my friend have an old console: ATARI 2600.
So, he don't have founded the original power supply, and we ignored the
ignored the voltage. The voltage value isn't writed on case.
Everybody remember the correct voltage for regolar use? And the polarity?