Single Band CHIRP-Ready Transducers for FURUNO GP1871F / GP1971F

These dedicated CHIRP transducers for the GP1871F/GP1971F are offered with thru-hull and transom-mount installation options, and are available in many different frequency ranges to accommodate a variety of fishing requirements. Acoustically, the internal design of the transducers are the same, but different mounting options are available.

The Furuno 7-inch GP1871F and the 9-inch GP1971F include powerful, built-in TruEcho CHIRP Fish Finder technology. They incorporate Airmar’s embedded Transducer ID (XiD) Technology to automatically optimize both the output power (300 W to 1 kW)

and frequency of the connected transducer. The units allow selection of one of three different CHIRP transducer frequency bands. Low (40-75 kHz), Medium (95-155 kHz), and High (150-250 kHz) depending on the transducer. This allows you to select the optimum transducer to meet your individual power and frequency fishing requirements.

AIRMAR first launched the revolutionary CHIRP-ready broadband transducer product line with several dual-band offerings in August 2011. We’ve been adding innovative options ever since.

Award Winning Technology Compatible with Single Channel TruEcho CHIRP Sounders

Single Band CHIRP Transducer Comparison

Thru-Hull with Performance Fairing

B285HW Wide Beam1 kW• High Frequency:

150-250 kHz• 25° Constant Beam• Maximum Depth: 152 m (500’)

B285M*

1 kW• Medium Frequency:

85-135 kHz• 16 to 11° Beamwidth• Maximum Depth: 457 m (1500’)

*Available Late 2018

Thru-Hull

Thru-Hull with Performance FairingB785M600 W• Medium Frequency:

80-130 kHz• 24° to 16° Beamwidth• Maximum Depth: 274 m (900')

Thru-HullTransom-Mount

Low profile, Thru-HullB75L300 W• Low Freq.: 40-75 kHz• Also available in Stainless Steel

version• 32° to 21° Beamwidth• Maximum Depth: 366 m (1200’)

B75M600 W• Med Freq.: 80-130 kHz• 24° to 16° Beamwidth• Maximum Depth: 274 m (900')• Also available in Stainless Steel, both

0˚ and 12˚ tilted versions

B75H600 W• High Freq.: 130-210 kHz• 15° to 9° Beamwidth• Maximum Depth: 213 m (700’)• Also available in Stainless Steel, both

0˚ and 12˚ tilted versions

Low profile, Thru-HullB175L1 kW• Low Freq.: 40-60 kHz • 32° to 21° Beamwidth• Maximum Depth: 762 m (2500')

B175H• High Freq.: 130-210 kHz• 10° to 6° Beamwidth• Maximum Depth: 305 m (1000')B175HW Wide Beam• High Freq.: 150-250 kHz• 25° Constant Beam• Maximum Depth: 152 m (500’)• Also available in 12˚ tilted version

B175M*

• Medium Freq.: 85-135 kHz• 16° to 11° Beamwidth• Maximum Depth: 457 m (1500’)• Also available in 12˚ tilted version

*Available Late 2018

5 mm(0.19”)

M70 x 2 mm(0.08”) threads

12

9 m

m(5

.09

”)

ø 9

4 m

m(3

.71

”)

70 mm (2 13/16”) hole size

Spacer washer 1

18

mm

(4.6

7”)

10

7 m

m(4

.23

”)

ø 13

4 m

m(5

.26

”)6 mm(0.25”)

3 3/4-4 UNCthreads

98 mm (3 7/8”)hole size

56 mm (2.20”)

Free Area

6.35 mm(0.25”)

134 mm(5.26”)

95.25 mm(3.75”)

No Draft

56 mm(2.20”)

118 mm (4.67”)

42.3 mm(1.66”)

71 mm(2.80”)

86

mm

(3.3

7”)

124 mm(4.88”)

84 mm3.31"

75 mm2.94"

5 mm0.19"

21 mm0.81

2"-12 THREADS

80 mm3.13"

Transom-MountTM150M300 W• Medium Frequency:

95-155 kHz• 26° to 17° Beamwidth• Maximum Depth: 183 m (600’)

Low profile, Thru-HullB150M300 W• Medium Frequency:

95-155 kHz• 26° to 17° Beamwidth• Maximum Depth: 183 m (600’)

Transom-Mount

TM185HW Wide Beam 1 kW• High Frequency:

150-250 kHz• 25° Constant Beamwidth• Maximum Depth: 152 m (500’)

TM185M*

1 kW• Medium Frequency:

85-135 kHz• 16° to 11° Beamwidth• Maximum Depth: 457 m (1500’)

*Available Late 2018

• Depth & temp.• Includes Transducer ID®

• Depth & temp.• Includes Transducer ID®

• Depth & temp.• Includes Transducer ID®

• Depth & temp.• Includes Transducer ID®

• Depth & temp.• Includes Transducer ID®

• Depth & temp.• Includes Transducer ID®

Transom-Mount Thru-HullThru-Hull

173 mm(6.80”)

349 mm (13.73”)

77 mm(3.05”)

ø 80 mm(3.13”)

76 mm(3.00”)

2.00”-12UN Threads

ø 51 mm(2.00”)

Thru-Hull

137 mm(5.40”)

15

9 m

m(6

.25

”)

108 mm(4.26”)

260 mm(10.23”)

137 mm(5.40”)

15

9 m

m(6

.25

”)

108 mm(4.26”)

260 mm(10.23”)

546 mm (21.50”)

10

7 m

m(4

.20

”)

12

1 m

m(4

.78

”)

178 mm (7.00”)

15

2 m

m(6

.00

”)

10

8 m

m(4

.25

”)

M30-2 threads

51 mm(2.00”)

198 mm (7.80”)

• Depth & temp.• Includes Transducer ID®

©2018 Airmar Technology Corporation SingleBand_Furuno_Brochure_rA 5/03/18

As Airmar constantly improves its products, all specifications 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. Transducer ID® is a registered trademark of Airmar Technology Corporation. FURUNO is a trademark of FURUNO Electric Co.,LTD. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affiliated with Airmar.

www.FurunoUSA.com www.airmar.com

The fish must be in the beam to be represented on the display.As CHIRP technology remains at the forefront of echo sounder development, Airmar continues to add transducers for every installation type. When  performance matters most, we’ve got you covered.

The Benefits of Airmar’s CHIRP-Ready Transducers• One broadband transducer covers up to 100 kHz of bandwidth –

greater opportunities to detect fish in the water column

• Superior resolution – precise separation between baitfish and gamefish represented on the display with crisp images

• Enhanced bottom fishing – resolve targets close to the bottom or near structure/wrecks

• Amazing detail – recognize haloclines and thermoclines

• Improved signal to noise ratio – find fish and track bottom at high boat speeds