Boat Forum / Electronics / March 2005

I'm posting to this topic because:
-- this forum seems to have the brightest and best, and
-- the radio log is partially on-topic here
The other night a group of us got into a discussion of whether there was a

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I am trying to locate gyro compass repeaters. They do not have to be Sperry,
but Sperry is preferred. The repeaters can be 1x synchro, 24v step (180 is
preferred format) or NMEA (RS 422 is preferred). Any help would be
appreciated. I require both a panel mount and a gimballed ...

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I'm selling the HP iPAQ Pocket PC H2210 in excellent condition on eBay. I'm
only selling it because I rarely use it anymore and my tightwad husband has
been getting on my case about my spending habits and I need to prove to him
that I can take responsibility for my actions. Here is ...

I'm installing a new 20A intelligent shore powered battery charger.
The charger is located about 15 feet (wire run length) from the
battery box, separated by a bulkhead.
On which end of the wire run should the overcurrent protection go?

I need to replace my sail boat depth sounder. Just want a straightforward
how deep is it with ability to set warning at certain depth.
Any suggestions on models, prices, where to buy.
Thanks

Hi, guys;
Instead of using the display unit from the Navman depth 2100, i try to
design my own display unit for the transducer of depth 2100.
Anyone have any idea how to interface with this depth transducer by

I want to design a display unit for Navman depth 2100 transducer b
using the PIC microcontroller. I found that RCA jack cable is used wit
this transducer.
I dont have any idea to interface with this type of cable.

Can anyone give me some first hand comments on their experience using
Fugawi Marine navigation software. I have been a long time user of  The Capn
and would like to take advantage of the S57 vector charts. I tried a Demo of
Figawi at home and found some of the functions less than ...

Has anyone got a circuit to make up one of these for Steel canal boat
please. I have been recommended to go for about 70 amps.

I've got a Lowrance LMS320 and I've been thinking about buying some of
these Navonics charts for it.  Unfortunately, I would need the lakes
and coastline of Texas.  That's 2 sets I think.  $$
Anyway, my question is regarding the level of detail that these maps

I am searching for cheap Automatic Identification Systems, suitable for
small boates. I found some on the internet, but all of theme were on
the websites of dealers. What I want to know is some of the
manufactores of the systems. Does anybody here know some website of the

Hello! I'm performing maintenance on several HF whips.  The directions
call for megging the HF antennas to make sure the resistance to ground
is greater than 200 M Ohms.  How critical is this measurement.
Sometimes, the Meg reading has gone down to 86 K ohms, before being

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