Technical data

Transducers - Other frequencies
Transducer
Part number
Frequency Power
Rating
Beam
Angle
Housing
Type
Plug
Type
Mount
Type
Cable
Length
Compatible Models
CV102 24 kHz 10kW 9 x 10 Rubber
Coated
NP Tank 30
Meter
FCV10
CA28TID-S261
(w/temp + HSFB)
28kHz 1kW 23 x 32 SS NP TH 10
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA28BL-6HR 28kHz 2kW 22 x 32 FRP NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA28BL-12HR 28kHz 3kW 16 x
21.5
FRP NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA28F-18 28kHz 2kW 17 x 18 Rubber
Coated
NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA28F-24H 28kHz 3kW 18 x 24 Rubber
Coated
NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA28F-38M 28kHz 5kW 14 Rubber
Coated
NP Tank 30
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA28f-72 28kHz 10kW 12 x 16 Rubber
Coated
NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA28F-8 28kHz 1kW 31 x 34 Rubber
Coated
NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA33B-6 33kHz Net Sounder
Use Only
Rubber
Coated
NP Tank 30
Meter
Net Sounder Use Only
CA38BL-9HR 38kHz 2kW 20.5 x
20.5
FRP NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA38BL-15HR 38kHz 3kW 12.5 x
21
FRP NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA40B-6B 40kHz Net Sounder
Use Only
Rubber
Coated
NP Tank 30
Meter
Net Sounder Use Only
CA88F-126H 88kHz 5kW 4 x 5 Rubber
Coated
NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA88B-10 88kHz 2kW 8 Rubber
Coated
NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA88B-8 88kHz 1kW 11 Rubber
Coated
NP Tank 15
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
CA100B-10R 107kHz 3kW 8 x 13 Rubber
Coated
NP Tank 10
Meter
DFF3, FCV295, FCV1150, FCV1200 and BB
Models
Notice the difference in returns between
the 600 watt output ( left, with 525ST-
MSD) and 1,000 watt output ( right, with
525T-HDD) from the GP7000F fish finder.
710
Although the vast majority of fish finders operate at the 50/200kHz, there are many other frequencies available that are utilized
almost exclusively in commercial applications. These include 15, 28, 33, 38, 40, 88 and 107kHz. The following is a list of Furuno
transducers that operate within these frequencies.
Commercial transducers such as these are generally mounted in tanks or sea chests that are custom-built into the ships hull.
Some transducers are designed exclusively for use with Net Sounders, while others are used by commercial fishermen or other
high seas vessels that require the most reliable depth sounders available.
Output wattage and performance
Higher output power equates to greater depth range, as well as stronger returns on your fish finder
screen. The actual depths you can reach with your fish finder will vary depending on a number of
factors including salinity, temperature and frequency as well as the quality of the transducer. The
following maximum depths are general guidelines:
100W = 400' Max Depth
200W = 500' Max Depth
300W = 600' Max Depth
600W = 800'- 1200' Max Depth
1KW = 1800' - 2500' Max Depth
2KW = 2500' - 4000' Max Depth
As we can see in the image at right, your fish finder can benefit from
being matched to a transducer rated for a higher output wattage,
but remember that the output wattage must always be less than
or equal to the wattage of the transducer. If the echosounder has
more output wattage than the transducer is capable of handling, the
transducer will be damaged.
When to use a matching box
Most recreational fish finders have a single connection for your transducer. Because a standard
transducer contains one vibrating element that alternates transmission frequency across a single
line, only one line is required to send the electrical signal from the fish finder to the transducer and
back. Multiple-element transducers always have separate signals for each frequency, and so some
high-performance transducers come with a device called a diplexer installed inside the hous-
ing. A diplexer takes the electrical signal from the fish finder and distributes it to the individual
50/200kHz arrays. It then combines the returning 50/200kHz signals so that they can be trans-
mitted together across a single line. The result is a high-performance transducer that is able to
connect directly to a recreational fish finder, and one that will outperform a standard transducer
matched to an identical fish finder.
Not all high-performance transducers contain an internal
diplexer. Matching a high-performance transducer and a
recreational fish finder will sometimes require a diplexer-
like device called a matching box. This is a simple device that
separates and recombines the electrical signal. The result is
a lower-wattage recreational fish finder capable of operating
with the sensitivity and resolution of a more powerful com-
mercial machine.
Broadband Technology
“Broadband” is a term used to describe a method for increasing the available bandwidth (range of
frequency) of a transducer element without lessening performance. Increased bandwidth allows
for the faster rise and fall times of the acoustic pulse, the by product of which is referred to as ring.
This decreased ringing presents a much crisper image on the fish finder screen, allowing for better
discrimination of individual bait fish as well as an increase in the ability of the fish finder to differ-
entiate between the sea floor and fish suspended very near to the bottom. Broadband technology is
available in select transducers.
The
MB1100 Matching Box
allows for the use of high
performance transducers
with your recreational
Furuno fish finder.