RUNNING TWO
TRANSDUCERS OR SONAR
UNITS AT THE SAME TIME
S
ome anglers may want to
make use of two different
transducers or sonar units on
their boat – this is because different
transducers and units can offer
different capabili es and func ons.
For example: some may read well at
shallow depths and have wide
coverage areas, and some may be
be er suited to deeper waters and
have narrow coverage areas. Some
units may offer a structure view
whereas other offer CHIRP sonar
view.
Most of today's transducers offer
you dual frequency – so you can set
each unit on a different frequency to
avoid interference.
If you are limited to using the same
transducer frequency on each unit,
you will have to run one at a me to
avoid interference.
So how do you run both units at
the same time?
If both transducers are using the
same frequency (e.g. 83 kHz, 50 kHz
or 200 kHz), they will interfere with
each other once you reach a water
depth that allows the two sonar
beams to cross. When this happens,
you will not get a decent sonar
display on your screen.
Two transducers using the same
frequency may work well together in
shallow water, but only if they are
mounted far enough apart. Be
careful with moun ng one
transducer on either side of your
boat transom though, because the
prop wash may affect one of the
sonar readings (in SA most props
turn from le to right, so we usually
suggest that you mount all transom
transducer/s on the right of the
starboard motor).
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If you have any ques ons regarding your
installa on, don't hesitate to call our technical
manager John Minnie on 082 44 36 738.