Dual Depth sounders on boat?
 

Will two 192Khz depth sounders interfere with each other? I have an old
Eagle Ultra II Plus and Ultra and would like to use one up on the bridge.
Is it possible to share the transducers between the two? (I know one would
have to be turned off).

Yes but, you have to buy a switch box from LEI to turn one off and the
other on.

Rick

Mark wrote:
Will two 192Khz depth sounders interfere with each other? I have an old
Eagle Ultra II Plus and Ultra and would like to use one up on the bridge.
Is it possible to share the transducers between the two? (I know one would
have to be turned off).

They will no interfere with each other is what I meant to say.

Mark wrote:

Will two 192Khz depth sounders interfere with each other? I have an old
Eagle Ultra II Plus and Ultra and would like to use one up on the bridge.
Is it possible to share the transducers between the two? (I know one would
have to be turned off).

On Tue, 24 Aug 2004 17:51:14 -0400, "Mark"
wrote:

Will two 192Khz depth sounders interfere with each other? I have an old
Eagle Ultra II Plus and Ultra and would like to use one up on the bridge.
Is it possible to share the transducers between the two? (I know one would
have to be turned off).

As far as interference with each other is concerned, it
depends on the depth. If the two tranducers are the same
frequency, and you reach a depth at which the cones overlap,
they WILL interfere with each other.

As noted, a switch box will allow you to use one tranducer
with both units, or mount both transducers, and only have
one on at a time.

In article ,
says...
On Tue, 24 Aug 2004 17:51:14 -0400, "Mark"
wrote:

Will two 192Khz depth sounders interfere with each other? I have an old
Eagle Ultra II Plus and Ultra and would like to use one up on the bridge.
Is it possible to share the transducers between the two? (I know one would
have to be turned off).

As far as interference with each other is concerned, it
depends on the depth. If the two tranducers are the same
frequency, and you reach a depth at which the cones overlap,
they WILL interfere with each other.

As noted, a switch box will allow you to use one tranducer
with both units, or mount both transducers, and only have
one on at a time.



I'm new to this and am just asking, why can't the signal from one
transponder just be split into two feeds? I know there would be some
bridging loss but not a lot. In other words is the transponder unique to
a specific receiver?

Just curious
--
MikeG
Heirloom Woods
www.heirloom-woods.net

On Wed, 25 Aug 2004 23:18:21 -0400, MikeG
wrote:


I'm new to this and am just asking, why can't the signal from one
transponder just be split into two feeds? I know there would be some
bridging loss but not a lot. In other words is the transponder unique to
a specific receiver?

Just curious

A depth sounder transmits a brief ultrasonic pulse, then listens for
its echo, using the same transducer.

If two sounders were connected to the same transducer, the
high-powered transmitted pulse from one sounder would overload, and
probably damage, the sensitive receiver in the other.


--
Peter Bennett VE7CEI
email: peterbb4 (at) interchange.ubc.ca
GPS and NMEA info and programs: http://vancouver-webpages.com/peter/index.html
Newsgroup new user info: http://vancouver-webpages.com/nnq

In article ,
lid says...
On Wed, 25 Aug 2004 23:18:21 -0400, MikeG
wrote:


I'm new to this and am just asking, why can't the signal from one
transponder just be split into two feeds? I know there would be some
bridging loss but not a lot. In other words is the transponder unique to
a specific receiver?

Just curious

A depth sounder transmits a brief ultrasonic pulse, then listens for
its echo, using the same transducer.

If two sounders were connected to the same transducer, the
high-powered transmitted pulse from one sounder would overload, and
probably damage, the sensitive receiver in the other.



Ah, so the pulse is generated in the unit not the transponder. Thanks
much. That answers that one.

--
MikeG
Heirloom Woods
www.heirloom-woods.net

I have two Raymarine depth sounders, same frequency, one each in the bows of
my catamaran, and they don't interfere at any depth.
Previously, I had two Datamarines, same frequency, in our old cat, no
interference.
Technicians with the mfgs suggested there would be the problem you mention,
but I found it not to be the case.

"George Pinson" wrote in message
...
As far as interference with each other is concerned, it
depends on the depth. If the two tranducers are the same
frequency, and you reach a depth at which the cones overlap,
they WILL interfere with each other.

As noted, a switch box will allow you to use one tranducer
with both units, or mount both transducers, and only have
one on at a time.