Garmin
AIRMAR® R109LHW
£3,880.00
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010-12182-20
The Garmin R109LHW is a 2 kW CHIRP thru-hull transducer with a 38-75 kHz low band and a 150-250 kHz high wide band that holds a constant 25 deg beam for broad coverage. It pairs with the Garmin GSD 26 sonar module.
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Collection or delivery in 1-2 weeks
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin R109LHW is a high-power CHIRP thru-hull transducer that combines a 38 to 75 kHz low band with a 150 to 250 kHz high wide band, giving 137 kHz of total bandwidth from one 16-element broadband ceramic array. Where most CHIRP transducers narrow their beam as frequency rises, the wide high band holds a fixed 25 degree beam across the whole range, putting far more coverage beneath the boat and revealing more fish in the water column.
With 2 kW of transmit power the low band sounds to 6,000 ft while the wide high band gives broad, detailed returns to 500 ft. The urethane housing installs as an external thru-hull with a High-Performance Fairing and suits fibreglass, wood or metal hulls up to 22 degrees deadrise on vessels of 12 m and above. An integral depth and fast-response temperature sensor is included. The transducer terminates in bare wires and requires the Garmin GSD 26 CHIRP sonar module, which connects to networked GPSMAP chartplotters.
PRODUCT DETAILS
- Broadband CHIRP transducer with a 38-75 kHz low band and a 150-250 kHz high wide band
- High wide band holds a fixed 25 deg beam across the whole frequency range for maximum coverage under the boat
- 2 kW of transmit power with 137 kHz of total bandwidth from a single 16-element ceramic array
- Low band sounds to 6,000 ft; the wide high band gives broad, detailed coverage to 500 ft
- External thru-hull mount with High-Performance Fairing, for fibreglass, wood or metal hulls up to 22 deg deadrise on boats 12 m (40 ft) and above
- Integral depth and fast-response water-temperature sensor
- Requires the Garmin GSD 26 CHIRP sonar module and connects to networked GPSMAP chartplotters
- R109LHW thru-hull transducer with 49 ft (15 m) bare-wire cable
- High-Performance Fairing
- Installation instructions
No exploded diagram available for this product.
No compatible transducers listed for this product.
No spares or accessories listed for this product.
Sonar
| Sonar type | Broadband CHIRP, dual-band Low and High Wide-Beam |
| Frequency – Low band | 38 to 75 kHz |
| Frequency – High Wide band | 150 to 250 kHz |
| Total bandwidth | 137 kHz from one transducer |
| Transmit power | 2 kW |
| Maximum depth | 8,000 ft (Garmin rated). Low band to 1,829 m (6,000 ft); high wide band to 152 m (500 ft) |
Beam
| Beamwidth – Low band | 19 to 10 degrees port-starboard, 10 to 5 degrees fore-aft |
| Beamwidth – High Wide band | 25 degrees constant across the band (wide beam for maximum coverage) |
Mounting
| Mount type | Thru-hull, external mount with High-Performance Fairing |
| Supported deadrise | Hulls up to 22 degrees deadrise (dealer/Garmin list 0 to 25 degrees with fairing) |
| Recommended boat size | 12 m (40 ft) and above |
| Hull / engine suitability | Fibreglass, wood or metal hulls; inboard, outboard or I/O engines |
Physical
| Housing material | Urethane/plastic transducer housing with High-Performance Fairing |
| Element configuration | 16 internal broadband ceramic assemblies |
| Temperature sensor | Yes – depth and fast-response water-temperature sensor |
Connectivity
| Connector | Bare wires (terminates to the Garmin GSD 26 sonar module) |
| Cable length | 49 ft (15 m) |
Compatibility
| Sonar module required | Requires the Garmin GSD 26 CHIRP sonar module (R109 high-power family). Connects to networked GPSMAP chartplotters via the Garmin Marine Network. |
General
| In the box | R109LHW thru-hull transducer with 49 ft (15 m) bare-wire cable, High-Performance Fairing and installation instructions |
No videos available for this product.
What makes the R109LHW a wide-beam transducer?
Its high band sweeps 150 to 250 kHz and holds a fixed 25 degree beam across the whole range, rather than narrowing as frequency rises. This puts more coverage beneath the boat and reveals more of the water column.
What frequencies and power does the R109LHW use?
It is a dual-band CHIRP transducer covering 38 to 75 kHz (low) and 150 to 250 kHz (high wide), with 137 kHz of total bandwidth and 2 kW of transmit power.
Does the R109LHW need a sonar module?
Yes. It is a 2 kW bare-wire CHIRP transducer that requires the Garmin GSD 26 CHIRP sonar module, which connects to networked GPSMAP chartplotters.
How deep can the R109LHW sound?
It is rated to 8,000 ft overall. The low band reaches approximately 6,000 ft and the wide high band approximately 500 ft, depending on water conditions.
How is the R109LHW mounted?
It is an external thru-hull transducer fitted with a High-Performance Fairing, for fibreglass, wood or metal hulls up to 22 degrees deadrise on boats of 12 m (40 ft) and above.
