Airmar B75 High 12 Degree Thru-Hull Tilted Element 8-Pin [B75C-12-H-8G]
- Free worldwide shipping
- In stock, ready to ship
- Inventory on the way
B75 High 12 Degree Thru-Hull Tilted Element 8-Pin
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
30-Day Returns & Fast Shipping
Most eligible items may be returned within 30 days of delivery. Items must be unused, uninstalled, and returned in their original condition with all original packaging, accessories, hardware, and components.
Returns caused by ordering the wrong item, incorrect vehicle or product fitment, incorrect size or quantity, accidental purchase, change of mind, or other customer error are subject to a minimum 20% restocking fee. Depending on the condition of the returned product, packaging, missing components, or other factors affecting resale value, the restocking fee may be increased up to a maximum of 50% of the product price. Customer-error returns may also be subject to return shipping costs.
Restocking fees do not apply when we verify that the wrong item was shipped by us or that the product arrived damaged or defective through no fault of the customer. Please contact 4Falcons before returning any item so we can provide return authorization and instructions.
Orders are processed and shipped as quickly as possible. Delivery dates are estimates and may be affected by carrier delays, weather, holidays, incorrect addresses, or other circumstances outside our control. Tracking information will be provided when available.
Please verify vehicle, RV, marine, or equipment compatibility before placing your order. Installed, used, modified, damaged, incomplete, or otherwise non-resalable products may receive a reduced refund or may not be eligible for return.
