A combination
thru-hull and transom mount transducer. Smaller than the Model 201.
Housing material is cast bronze.
Options:
Temperature Sensor.
Dual frequency, single element, 50/200 kHz
Dual beam (degrees):
14 & 38 @ 120 kHz
9 & 19 @ 200 kHz
Weight:
2.6 lbs.
Specifications:
FREQUENCY (kHz)
BEAM WIDTH
(degrees @ -3db)
ELEMENT SIZE
(inches)
ELEMENT SIZE
(millimeters)
CAPACITANCE
(pf)
NOTE (1)
IMPEDANCE
(ohms)
NOTE (2)
TRANSMIT
RESPONSE
(db)
NOTE (3)
RECEIVE
RESPONSE
(-db)
NOTE (4)
POWER RATING,
RMS (watts)
REMARKS
200
18
1.1
28
965
550
157
-189
300
200
12
1.45
37
1265
480
161
-182
300
200
11
1.7
43
1900
300
163
-185
600
Dual
frequency, 200 & 50 kHz
200
9
2.0
50
2185
385
165
-186
600
160
20
1.1
28
885
750
158
-189
300
160
11
2.0
50
1750
550
164
-183
600
120
38
1.0
25
1050
500
167
-181
300
120
14
2.0
50
1725
320
164
-171
600
50
45
1.7
43
1600
440
156
-173
600
Dual
frequency, 200 & 50 kHz
NOTES: (1)
with standard length cable. (2) equivalent
series R in water. (3) the source level
generated by one watt input. (4) the open
circuit RMS voltage generated by a pressure of one microbar.