Two units, one transducer?

Anyone have any information on how I can use the two Eagle 320's with only
one transducer? Guess I want them to both show the same thing/avoid pinging
each other/etc...

"Charles B. Summers" wrote in
:

Anyone have any information on how I can use the two Eagle 320's with
only one transducer? Guess I want them to both show the same
thing/avoid pinging each other/etc...






If I were gonna try to do something like that, I'd try to provide a
duplicate screen, rather than to have two full functioning units. This
way, you have one master unit and a slave screen that replicates the screen
on the master. You'd probably need to capture the harness that the LCD
plugs into, T off of it, install some drivers, and run a cable to the other
LCD. If there is any on-board programming on a non-OEM LCD module, as
opposed to a simple standalone LCD, all bets would be off.

Unless I miss my guess, the signal that excites the transducer probably
rides on the same wires a the signal coming back from the transducer. You
might be able to find the driver chips that excite the transducer on one
units and cut the traces, and hope that whatever synchronization that times
when the signal should be coming back is in place is very forgiving. I
wouldn't hold my breath.


--
Scott
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"Charles B. Summers" wrote in message
...
Anyone have any information on how I can use the two Eagle 320's with only
one transducer? Guess I want them to both show the same thing/avoid
pinging
each other/etc...

I'd rather have two locators and two transducers. I want to know if there's
something different going on in the front of the boat vs. the back.

Why don't you check and see if you can connect them with a NEMA cable if you
want to do something like that? I believe that you can do that with
Lowrance units, Eagle might be similar.
--
Steve @ OutdoorFrontiers
http://www.outdoorfrontiers.com
G & S Guide Service and Custom Rods
http://www.herefishyfishy.com

Charles

You might contact the manf. - see if they have a "T" switch that will
also you to do what you want.

I know for my Vexilar flasher, there is such a gizmo available.

Jim

On Mon, 15 May 2006 16:14:22 -0500, "Charles B. Summers"
wrote:

Anyone have any information on how I can use the two Eagle 320's with only
one transducer? Guess I want them to both show the same thing/avoid pinging
each other/etc...

I had that set up on a boat - had a switch under th console to switch
the tranducer from a paper graph to a flasher in the console. Hated it.
Where are the two depthfinders located?

"Charles B. Summers" wrote in message
...
Anyone have any information on how I can use the two Eagle 320's with only
one transducer? Guess I want them to both show the same thing/avoid
pinging
each other/etc...


Hi Charles,

I ran into this problem a year or two ago. Checking with Lowrance, I was
informed that you can use 2 units on the same transducer provided only one
of them is turned on. They provided me with a switch which I will be happy
to give to you, if you want it, as I replaced all my electronics with a
retirement gift certificate for another brand.

Jack

From what I have read, the Transducer produces too much data to ship
over the Lowrance-Net, so they say that is why you need the separate
transducer for each unit. I actually now have my boat prewired for the
Lowrance-Net, just waiting on my second graph to come in. One
transducer on the trolling motor, and another on the transom.

Sorry Charles, I know that doesn't answer your question, just throwing
in my 2 cents about the NEMA.

Chris
Steve @ OutdoorFrontiers wrote:
"Charles B. Summers" wrote in message
...
Anyone have any information on how I can use the two Eagle 320's with only
one transducer? Guess I want them to both show the same thing/avoid
pinging
each other/etc...

I'd rather have two locators and two transducers. I want to know if there's
something different going on in the front of the boat vs. the back.

Why don't you check and see if you can connect them with a NEMA cable if you
want to do something like that? I believe that you can do that with
Lowrance units, Eagle might be similar.

Chris Rennert wrote in news:4469fd27$0$76686$39cecf19
@news.twtelecom.net:

From what I have read, the Transducer produces too much data to ship
over the Lowrance-Net, so they say that is why you need the separate
transducer for each unit. I actually now have my boat prewired for the
Lowrance-Net, just waiting on my second graph to come in. One
transducer on the trolling motor, and another on the transom.


A fair enough description. If you think about what sonar is, a sound pulse
is sent off using a piezo element (or an array of elements), reflections
come back and are "transduced" by the same piezo device, so the wires that
activate the element and the wires that record the echo are often the same.
This happens at a pretty fast rate.

So, the onboard computer needs to reconstruct the signal coming back. It
needs to know what this signal is, and it needs to know what time the
activation signal was sent. I just don't see that a second unit would ever
know what time the first unit sent the activation pulse, and both units
would get garbled if the other unit weren't accounted for.

It would require major engineering to do what you want to do. It would
require semi-major engineering to just have a slave screen duplicate the
image on a second console. The cheapest, fastest approach would be to use
a cheap camera to take a picture of one unit and view it on a cheap monitor
on the other side of the boat.

Lowrance-net lets you send and receive data from many devices on the net
using one central computer. What the OP is trying to do is control one
device with two computers.

Unless you can buy a system like this off the shelf (and I'm pretty sure
you can't) I'd give up on the idea.

--
Scott
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Jim Laumann wrote in
:

I know for my Vexilar flasher, there is such a gizmo available.



If its the device I can find on the web, it lets you plug two transducers
into one unit, not one transducer into two units

--
Scott
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Scott Seidman wrote in
. 1.4:

Unless you can buy a system like this off the shelf (and I'm pretty sure
you can't) I'd give up on the idea.

Of course, if you only need to use one unit at a time, a switch box would
be a fairly easy solution, but you'd never be able to use both units at the
same time.

--
Scott
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