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Thru-Hull1 kWFM & ChirpTunable Broadband

Fishing Applications• Tuna, marlin, and in-shore game fi sh

• Bottom and wreck fi shing down to 800 m (2,625’)

• Commercial fi shing

Features• Designed for next generation FM and Chirp tunable sounders

• Operates at any frequency between 42 kHz to 65 kHz and 130 kHz to 210 kHz

• Depth and fast-response water-temperature sensor

• Bronze housing

• Four separate wires for low and high frequencies

• Interfaces to any 600 W or 1 kW echosounder

• Recommended for sportfi shing boats above 9 m (30’) and small to mid-size commercial fi shing boats

• Optionally available as B265LM, low and medium-frequency (85 kHz to 135 kHz)

The Next FrontierImagine knowing what exact frequencies work the best at detecting specifi c fi sh species: Bluefi n Tuna—60 kHz, Squid—133 kHz, and Cod—175 kHz. Now imagine tuning your fi shfi nder to these frequencies, marking the fi sh precisely on the screen, then catching them! With the B265LH transducer connected to a tunable fi shfi nder, you too can have a log book like a commercial fi sherman. This powerhouse transducer delivers extreme target detail, bottom discrimination, and bait and game fi sh separation at all depths down to 914 m (3,000’). The Broadband B265LH is the industry’s fi rst, fully-tunable,1 kW, thru-hull transducer. As tunable fi shfi nders become more common in the sportfi shing market, captains will adjust the fi shfi nder and transducer frequency based on the fi shing conditions and target species.

Fully TunableThe B265LH is packed with a seven-element, low-frequency array that operates at anywhere between 42 kHz and 65 kHz. It has a wide, 25° beam that will adjust by several degrees as the frequency is tuned up or down the band. The single, high-frequency ceramic operates at any frequency between 130 kHz and 210 kHz and has a narrow, 6° beam that is adjustable by several degrees. The included High-Performance Fairing will give you broadband performance at speeds over 30 knots (34 MPH). We will leave it up to you to discover the rest of the secrets that can be unlocked with tunable, Broadband Transducer Technology.

B265LHPreliminary

Technical Information

©Airmar Technology Corporation B265LH_rA 08/25/10

As Airmar constantly improves its products, all specifi cations are subject to change without notice. All Airmar products are designed to provide high levels of accuracy and reliability, however they should only be used as aids to navigation and not as a replacement for traditional navigation aids and techniques. Xducer ID® is a registered trademark of Airmar Technology Corporation. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affi liated with Airmar.9001:20089001:2008

• RE

GISTERED TO •

ISOISO

B265LH

MAXIMUM DEPTH RANGE

Low-Frequency High-Frequency

529 m to 735 m 206 m to 294 m

(1,800’ to 2,500’) (700’ to 1,000’)

SPECIFICATIONS

Weight: 7.3 kg (16 lb)

Hull Deadrise: Up to 20° with fairing

Acoustic Window: Urethane

DIMENSIONS

Figure of MeritThe graphs show that the B265LH can run optimally at a wide range of frequencies.

50°

60°

70°

80°90°

50°

60°

70°

80°90°

180°170°170° 160°150°140°140°150°160°

0° 10°20°10°20°30°30°

40°40°

50 kHz -3 dB Beamwidth25°

-10 dB

-20 dB

-30 dB

-40 dB

180°170°170° 160°150°140°140°150°160°

50°

60°

70°

80°90°

50°

60°

70°

80°90°

0° 10°20°10°20°30°30°

40°40°

130 kHz -3 dB Beamwidth11°

-10 dB

-20 dB

-30 dB

-40 dB

50°

60°

70°

80°90°

50°

60°

70°

80°90°

180°170°170° 160°150°140°140°150°160°

0° 10°20°10°20°30°30°

40°40°

160 kHz -3 dB Beamwidth8°

-10 dB

-20 dB

-30 dB

-40 dB

50°

60°

70°

80°90°

50°

60°

70°

80°90°

180°170°170° 160°150°140°140°150°160°

0° 10°20°10°20°30°30°

40°40°

210 kHz -3 dB Beamwidth6°

-10 dB

-20 dB

-30 dB

-40 dB

Directivity Patterns

0

-10

-20

-30

-40

40 45 50 55Frequency (kHz)

dB

(3)

60

0

-10

-20

-30

-40

120 140 160 180Frequency (kHz)

dB

(3)

220200

42-65 kHz 130-210 kHz

Elements

Pulse Power* 1 kW 1 kW

Nominal TVR 167 dB 166 dB

Nominal RVR -180 dB -186 dB

Nominal FOM -13 dB -20 dB

Impedance 100 - 250 Ω 100 - 250 Ω

*The power rating is for conventional tone burst operation at 1% duty cycle. For longer duty cycle, Chirp, and FM operation and power rating for Broadband Transducers, contact Airmar.

554 mm(21.81”)

24

4 m

m(9

.59

”)1

33

mm

(5.2

5”)

11

4 m

m(4

.50

”)

216 mm(8.50”)

13

0 m

m(5

.13

”)

1”-11 1/2 NPS

66 mm(2.59”)

ø 33 mm (1.30”)

Transducer and High-Performance Fairing

11

4 m

m(4

.50

”)

ø 69 mm(2.75”)

216 mm(8.50”)

1”-11 1/2 NPS threads

17

8 m

m(7

.00

”)6

6 m

m(2

.59

”)

B265 Transducer

198 mm (7.80”)

Preliminary