Garmin
Garmin GT56UHD-THP
£1,189.99
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010-02732-11
The Garmin GT56UHD-THP is a matched pair of 12-pin stainless steel thru-hull transducers offering three frequencies: High-Wide CHIRP traditional sonar plus Ultra High-Definition ClearVu and SideVu. Joined by a Y-cable, the pair suits hulls of up to 25 degrees deadrise.
✓
Collection or delivery in 1-2 weeks
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Garmin GT56UHD-THP is a matched port-and-starboard pair of 12-pin thru-hull transducers offering the ultimate scanning versatility from three frequencies. The High-Wide traditional CHIRP element (150 to 240 kHz, 350 W) reads to 800 ft, while the 500 W ClearVu and SideVu elements run 455, 800 and Ultra High-Definition 1,000 kHz for resolution and range, giving high-resolution images below the boat (ClearVu to 400 ft) and to the sides (SideVu to 500 ft). Splitting SideVu across two hull-mounted transducers keeps clear side coverage on hulls of up to 25 degrees deadrise. Two fairing blocks, isolation plates and bushings are included, with at least one anti-rotation bolt required per transducer, plus a built-in fast-response water temperature sensor. The two transducers join via the included Y-cable to a Garmin sonar black box (GCV 20 or GSD 25) and compatible 12-pin chartplotters; the Ultra High-Definition modes require a UHD-capable display path.
PRODUCT DETAILS
- Matched pair of three-frequency thru-hull transducers: High-Wide CHIRP plus UHD ClearVu and SideVu
- High-Wide traditional CHIRP at 350 W to 800 ft; scanning sonar at 500 W
- ClearVu and SideVu run 455, 800 and Ultra High-Definition 1,000 kHz for resolution and range
- Two fairing blocks support hulls of up to 25 degrees deadrise
- Joined by a Y-cable to a Garmin sonar black box; built-in temperature sensor
- 12-pin connection to compatible Garmin chartplotters and the GCV 20 or GSD 25 black box
- Two GT56UHD thru-hull transducers with stainless steel stems
- Two fairing blocks
- Y-cable
- Isolation plates and bushings
- Mounting hardware (including anti-rotation bolts)
- Documentation
No exploded diagram available for this product.
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Sonar
| Sonar types | Traditional High-Wide CHIRP plus Garmin ClearVu and Garmin SideVu scanning sonar (including Ultra High-Definition); three frequencies in one transducer |
| Traditional frequency | CHIRP High-Wide 150 to 240 kHz |
| ClearVu / SideVu frequency | 455 kHz (425-485 kHz), 800 kHz (790-850 kHz) and UHD 1,000 kHz (940-1100 kHz) |
| Traditional power | 350 W |
| ClearVu / SideVu power | 500 W |
| Maximum depth | Traditional CHIRP 800 ft; ClearVu 400 ft; SideVu 500 ft |
Beam
| Traditional beamwidth | 24 to 16 degrees |
| ClearVu / SideVu beamwidth | 0.52 x 52 degrees at 1,000 kHz; 0.64 x 35 degrees at 800 kHz; 1.1 x 52 degrees at 455 kHz |
Mounting
| Mount type | Thru-hull pair (port and starboard) with cuttable fairing blocks; supported deadrise 0 to 25 degrees |
| Fairing block | Fairing block included; maximum cut angle 25 degrees; a fairing block should be used where deadrise exceeds 5 degrees |
| Installation | Must be installed with one or more included anti-rotation bolts; metal hulls use the included isolation plate and bushings |
| Anti-fouling | Apply water-based anti-fouling paint every six months; never use ketone-based paint |
Physical
| Housing material | Stainless steel stem |
| Temperature sensor | Built-in fast-response water temperature sensor |
Connectivity
| Connector | 12-pin |
| Cable length | 7.6 m (25 ft) |
Compatibility
| Compatible devices | Connects via a 12-pin sonar port to compatible Garmin chartplotters and sonar black boxes including the STRIKER, ECHOMAP UHD2 and ECHOMAP Ultra 2 series, GPSMAP 8600xsv and 9000xsv series, GPSMAP 7x3/9x3/12x3/16x3 xsv series, and the GCV 20 and GSD 25 sonar black boxes. Ultra High-Definition ClearVu and SideVu require a UHD-capable display path (a 12-pin UHD chartplotter or the GCV 20). Some combinations require an adapter cable. |
General
| In the box | Two GT56UHD thru-hull transducers with stainless steel stems, two fairing blocks, Y-cable, isolation plates and bushings, mounting hardware and documentation |
No videos available for this product.
Why is the GT56UHD-THP supplied as a pair?
Splitting SideVu across two hull-mounted transducers, one angled to each side, lets the GT56UHD-THP keep clear side coverage on hulls of up to 25 degrees deadrise. The two transducers join to a sonar black box via the included Y-cable.
What sonar does the GT56UHD-THP provide?
Three frequencies: High-Wide CHIRP traditional sonar (150 to 240 kHz, 350 W, to 800 ft) plus Garmin ClearVu and SideVu scanning sonar at 455, 800 and Ultra High-Definition 1,000 kHz (500 W; ClearVu to 400 ft, SideVu to 500 ft).
What do I need to display its sonar?
It uses 12-pin connectors joined by a Y-cable to a Garmin sonar black box (GCV 20 or GSD 25) and compatible 12-pin chartplotters. The Ultra High-Definition modes require a UHD-capable display path; some combinations require an adapter cable.
Does it read water temperature?
Yes, it has a built-in fast-response water temperature sensor.
