Airmar TM275LHW Transducer

Airmar TM275LHW Wide-beam Chirp-ready Transom Mount

Get more coverage under your boat with Airmar’s unique 1kW wide-beam, low and high-frequency, Chirp-ready Airmar TM275LHW. The high band operates across a frequency range of 150 to 250 kHz and has a fixed 25° beam for all frequencies which results in superior resolution. The constantly wide beam provides twice the coverage and clear fish arches on the display compared to most high-frequency, narrow-beam transducers.

The high wide is the ideal choice for both inshore and pelagic fishing, where resolution and maximum coverage are essential down to 152 m (500′). The low-frequency band and 1 kW of power also support great deep-water performance. Get the best of both worlds with Airmar’s Chirp-ready transducer with wide-beam coverage.

Features:

• Depth and fast-response water-temperature sensing
• 1 kW of power for great deep-water performance from the low frequency
• Low frequency: 42 to 65 kHz
  • 25° to 16° beamwidth
  • Maximum depth of 914 m (3000′)
• High frequency: 150 to 250 kHz
  • 25° constant beamwidth
  • Maximum depth of 152 m (500′)
• 123 kHz of total bandwidth from one transducer
• Covers popular fishing frequencies of 50 and 200 kHz plus everything else in the bandwidth
• High frequency delivers superior shallow-water performance, bottom detail, and fish-target separation
• High wide beamwidth yields more coverage for detecting fish in the upper-water column
• Stainless steel, kick-up bracket locks in the “up” position and will not damage the transom
• SEALCAST^™, seamless, urethane housing for long life in the water
• Also available as thru-hull (B275LHW) and pocket (PM275LHW) mounts Patented Xducer ID^® technology

The Benefits of AIRMAR’s Chirp-ready Transducers

• One broadband transducer covers up to 117 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 structures/wrecks
• Amazing detail – recognize haloclines and thermoclines
• Improved signal-to-noise ratio – find fish and track bottom at high boat speeds

Benefits of Transom Mount Transducers

Transom models are best suited for small and trailered vessels where a thru-hull installation is not practical. Perfect for freshwater boat styles and centre consoles. Simple to install and ideal for small trailered vessels where a thru-hull may interfere with loading.
• Simple installation on the transom of the boat
• Great performance at boat speeds below 30 knots
• Easy maintenance and low-cost replacement

Why does Frequency Matter?

Selecting the best frequency for your specific application is very important. The good news is that once you know what frequency will work best for the type of fishing you do, there’s an AIRMAR transducer designed to maximize the performance of your sounder.
AIRMAR Chirp transducers are available in various frequency combinations:

Low Frequency = Greater Depth (ex. 42-65 kHz)

• Sound waves will not present as clear a picture of the bottom on the display but will sound down in very deep areas where high-frequency sound waves cannot reach
• Provides greater depth range, wider beamwidth, and ultimately more coverage under the boat
• Chirp signal processing technology used with AIRMAR broadband, Chirp-ready transducers provide more detail at greater depths and are less susceptible to noise
• Great for operating at high boat speeds

High Frequency = Greater Detail (ex. 130-210 kHz)
• More sensitive to small targets and will send back detailed information which will display as crisp, high-resolution images on the echosounder screen
• Best for shallower water and is popular with anglers fishing at depths less than 1500 feet

Medium Frequency = The Best of Both Worlds (ex. 80-130 kHz)
• Provides the ability to sound deeper than the high frequency, along with better resolution than the low frequency
• Wider beam than the high frequency, achieving more coverage under the boat and greater opportunity to find fish
• Clear images at higher boat speeds

Brochure