I just rec'd a 15' extension cable for my Eagle Fishmark 320
fishfinder. The instructions say that I must attach 12v power and
ground to the power/ground wires that branch off of the extension
cable's connector that plugs into the main unit. I was expecting that
I would be able to simply connect my existing cable (which has 12v
power and ground feeding it)into the extension cable and I'd be good to
go, but now with a cable that was 15' longer.

The latter setup above is was what I was hoping for as I would
sometimes like to simply extend the cable that currently comes out of
my dash so that I could locate the finder away from the dash when I am
trolling (I face towards the back of the boat when I troll; sitting in
a plastic patio chair which I put in between the two front facing
lounge seats, and in front of the middle part of the split in the
windshield that swings open so you can crawl out onto the closed bow of
my 17' I/0 runabout.)

Does anyone know why Eagle would not "extend" the power/ground that
comes into the original cable down through the extension cable, and
instead wants you to attach power/ground to the power/ground wires that
come off of the extension cable's main unit connector?

Thanks!

I would guess the bulk of the users of an extension need a longer cable from
the dash to the transducer, they are not intending to make the dash unit
more 'portable'. You could extend the power lines yourself and bundle them
with the extension.

"Bob" wrote in message
...

I just rec'd a 15' extension cable for my Eagle Fishmark 320
fishfinder. The instructions say that I must attach 12v power and
ground to the power/ground wires that branch off of the extension
cable's connector that plugs into the main unit. I was expecting that
I would be able to simply connect my existing cable (which has 12v
power and ground feeding it)into the extension cable and I'd be good to
go, but now with a cable that was 15' longer.

The latter setup above is was what I was hoping for as I would
sometimes like to simply extend the cable that currently comes out of
my dash so that I could locate the finder away from the dash when I am
trolling (I face towards the back of the boat when I troll; sitting in
a plastic patio chair which I put in between the two front facing
lounge seats, and in front of the middle part of the split in the
windshield that swings open so you can crawl out onto the closed bow of
my 17' I/0 runabout.)

Does anyone know why Eagle would not "extend" the power/ground that
comes into the original cable down through the extension cable, and
instead wants you to attach power/ground to the power/ground wires that
come off of the extension cable's main unit connector?

Thanks!

Yea, that's what I figured I'd end up having to do. I am concerned
though, that bundling the power lines with the transducer extension
cable might cause some kind of interference problem that would mess up
the transducer signal. I'm not sure how sensitive the transducer
signal is to that sort of thing. Also, I'd want a good quality,
easy-to-use quick connect/disconnect plug/connector for connecting the
extended power lines when I wanted to use the extension cable...any
ideas on something I could use for that?


Lawrence James wrote:
:I would guess the bulk of the users of an extension need a longer cable from
:the dash to the transducer, they are not intending to make the dash unit
:more 'portable'. You could extend the power lines yourself and bundle them
:with the extension.
:
:"Bob" wrote in message
...
:
: I just rec'd a 15' extension cable for my Eagle Fishmark 320
: fishfinder. The instructions say that I must attach 12v power and
: ground to the power/ground wires that branch off of the extension
: cable's connector that plugs into the main unit. I was expecting that
: I would be able to simply connect my existing cable (which has 12v
: power and ground feeding it)into the extension cable and I'd be good to
: go, but now with a cable that was 15' longer.
:
: The latter setup above is was what I was hoping for as I would
: sometimes like to simply extend the cable that currently comes out of
: my dash so that I could locate the finder away from the dash when I am
: trolling (I face towards the back of the boat when I troll; sitting in
: a plastic patio chair which I put in between the two front facing
: lounge seats, and in front of the middle part of the split in the
: windshield that swings open so you can crawl out onto the closed bow of
: my 17' I/0 runabout.)
:
: Does anyone know why Eagle would not "extend" the power/ground that
: comes into the original cable down through the extension cable, and
: instead wants you to attach power/ground to the power/ground wires that
: come off of the extension cable's main unit connector?
:
: Thanks!
:
: