SKU: 35606440490

Airmar B75 High 20 Degree CHIRP Transducer 8-Pin f/Garmin

Sale price$418.50 Regular price$465.00
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Description

Airmar B75 High 20 Degree CHIRP Transducer 8-Pin f/GarminB75 High 20 Degree CHIRP Transducer 8 Pin for Garmin Airmars Broadband CHIRP transducers represent the next generation of technology that will allow fishermen to unlock secrets in fishfinding. Echosounder operation away from the traditional 50 kHz and 200 kHz has proven that different fish species return better signals at various frequencies. Airmars Broadband Transducers are capable of operating over a wide (or Broad) frequency band ranging from 25

B75 High 20 Degree CHIRP Transducer 8-Pin for Garmin

Airmar’s Broadband/CHIRP transducers represent the next generation of technology that will allow fishermen to unlock secrets in fishfinding. Echosounder operation away from the traditional 50 kHz and 200 kHz has proven that different fish species return better signals at various frequencies. Airmar’s Broadband Transducers are capable of operating over a wide (or “Broad”) frequency band ranging from 25 kHz to 60 kHz and from 130 kHz to 210 kHz.

Traditional fishfinders transmit a pulse at a single frequency (50 kHz or 200 kHz), which is often referred to as a “tone burst”. Better deep-water and bottom detection is obtained by transmitting a longer pulse, because the fishfinder is delivering more energy to the transducer. However, the drawback of a long pulse is that it provides reduced target resolution. For example, if a fishfinder transmits a pulse that is 500 microseconds in duration, it has a pulse length of 0.7 m (2.4’). With a tone burst, no targets can be resolved that are closer to one another than the pulse length. Fish less than 0.7 m (2.4’) apart, or less than 0.7 m (2.4’) from the bottom, can not be detected. Fish schools will appear in this case as a single large mass, while fish close to the bottom will appear attached to the sea bed and will be difficult or impossible to detect.

With CHIRP, the transmission pulses are typically very long and may start at 40 kHz and end at 60 kHz. By comparing the shape of the stored transmission pulse with the received echoes from the transducer, it is possible to find echoes in the noise and precisely determine their range with astounding accuracy. 

Using CHIRP, it is now possible to obtain:

  • Much greater range because very long pulses can be used.
  • Much better resolution because the sonar pulse is swept across a frequency band (from 40 kHz to 60 kHz, for example).
  • Enables targets to be precisely located within inches on the display using pattern-matching techniques.
  • Closely spaced fish and fish lying on the bottom can be accurately detected and displayed as distinct targets.

Because weak fish and bottom echoes can be resolved within the noise (the ‘snow’ on a conventional fishfinder display), it is possible both to detect targets at far greater depths than before and track the bottom at higher boat speeds.

Features:

  • 12 m (40’) cable
  • Depth and fast-response water-temperature sensor
  • Same elements and performance as the B765LH/LM offered in a low-profile housing
  • Bronze transducer housing
  • Boat Size: Up to 8 m (25’)
  • Hull Type: Fiberglass or wood
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35606440490

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Brittney Oliver
Cuba, US
★★★★★ 5
Great Quality
My son Loves this Jacket. He specifically asked for one for Christmas and this one met his every expectation. It is great quality. It is thick and warm without being too bulky. I sized up for him since he is a growing teenager and it still fits great and he will be able to wear it next winter too if he wants.
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Reviewed in the United States on February 20, 2026
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Ridwan Omar
Natrona Heights, US
★★★★★ 4
Cotton as Stylish as Snow
So far, after only wearing it a handful of days, I have already fallen deeply in love with this jacket. With its quality fleece jean material and stylish look, it's arguably climbed at record speed to being my favorite winter jacket thus far. It won't exactly cut it for the days of extreme cold, but it's practically perfect for those high 30s to low 50s degree Fahrenheit weather! The cotton on the inside is both soft and warm, and the overall fit of it hits a perfect sweet spot of being weighty without feeling too hefty or dragging on the body. The pockets aren't the deepest in the world, but with four of them, they'll be more than able to carry an decently sized arsenal of your everyday items. It lays on nicely, and is able to be worn with an extra layer or two underneath, in case a bit of extra warmth is needed. The only caveat that I could give it, hence why I gave it 4 stars instead of 5, is that if you choose to dawn on clothes that are rather lint susceptible, this jacket will be a direct enemy to it. But that is where the criticisms start and end, and is why I wish there were a way to give a product a 4.5 stars review here on Amazon. Otherwise, this is a must buy for anyone looking for a winter jacket that packs a bit more visual finesse than a typical puffer jacket. If only I had the sense to buy a winter jean jacket such as this one sooner rather than later!
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Reviewed in the United States on February 21, 2026
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Monica Hastie
Whiting, US
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️
Size: X-Large, Color: Black-grey Lined
Perfect fit. Color and quality were great! Awesome jacket for the money
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Reviewed in the United States on January 9, 2026
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Prajina
Lake Worth, US
★★★★★ 5
Absolutely loved this
First of all, I loved that it came in a nice transparent bag. And it is the perfect fit. The inside is lined sherpa fleece, which is really warm in freezing temperature. The outside is denim material. It's not stretchy but is soft from inside. The color I got is dark brown.
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Reviewed in the United States on December 30, 2025
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Indiana homestead
Fort Morgan, US
★★★★★ 3
Runs small if you are wearing layers
Runs small
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Reviewed in the United States on January 21, 2026

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