Garmin
Garmin GHC 20 Marine Autopilot Control Display
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010-01141-00
The Garmin GHC 20 is a dedicated marine autopilot helm control with a bright 4 in. bonded colour display. It engages, steers and configures compatible Garmin autopilots and draws power from the NMEA 2000 network.
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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 GHC 20 is the helm control for Garmin marine autopilot systems, giving you a single, easy-to-read interface for engaging, steering and configuring the autopilot. Its bonded 4 in. colour screen is glass-treated to resist glare and condensation, with a wide 170 degree viewing angle and LED backlighting that adapts from bright daylight to dim night running using selectable colour schemes.
The unit connects to and is powered by the NMEA 2000 network, so a separate power feed is not required, and it shares backlight and colour settings across compatible Garmin displays. The GHC 20 works with newer Garmin autopilots and legacy GHP corepacks alike, on both powerboats and sailboats, and supports steering patterns and GPS route following. It can also be paired with the Reactor wireless autopilot remote. The fully-gasketed polycarbonate housing is rated to IPX7 and can be flush or flat mounted for a tidy glass-helm finish.
PRODUCT DETAILS
- Bright 4 in. bonded colour display with anti-glare glass lens and 170 degree viewing angle
- Dedicated helm control for engaging, steering and configuring a Garmin marine autopilot
- Compatible with newer Garmin autopilots as well as legacy GHP systems on power and sail vessels
- Powered by the NMEA 2000 network, so no separate power connection is required (LEN 6)
- Day and night colour modes with selectable high-contrast, red/black and green/black night schemes
- Flush or flat mount to preserve a clean glass-helm appearance
- Steering patterns and GPS routes, plus pairing with the Reactor wireless remote
- Rugged, fully-gasketed polycarbonate case rated to IPX7
- GHC 20 autopilot control display
- Flush mount gasket and hardware
- NMEA 2000 drop cable
- Documentation
No exploded diagram available for this product.
No compatible transducers listed for this product.
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No compatible products found.
Display
| Display size | 4 in. (bonded colour screen) |
| Display type | Colour, glass-bonded with anti-glare treatment, LED backlight |
| Viewing angle | 170 degrees |
Physical
| Dimensions (H x W x D) | 110 x 115 x 30 mm (4.34 x 4.53 x 1.19 in.) |
| Weight | 247 g (8.71 oz.) |
| Case material | Fully-gasketed polycarbonate; glass lens with anti-glare treatment |
| Water rating | IEC 60529 IPX7 |
| Operating temperature range | -15 to 70 C (5 to 158 F) |
| Compass-safe distance | 209 mm (8.25 in.) |
Electrical
| NMEA 2000 input voltage | 9 to 16 Vdc |
| Power usage | 2.5 W max. |
| NMEA 2000 LEN | 6 (300 mA) |
Connectivity
| Network interface | NMEA 2000 (powered by network); NMEA 0183 via data cable |
| Mounting | Flush mount or flat mount |
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Does the GHC 20 need its own power supply?
No. The GHC 20 is powered by the NMEA 2000 network and does not require a separate power connection. Its NMEA 2000 LEN is 6 (300 mA).
How big is the GHC 20 display?
It has a bonded 4 in. colour screen with an anti-glare glass lens and a 170 degree viewing angle for clear reading at a distance and in bright sunlight.
Is the GHC 20 waterproof?
Yes. The fully-gasketed polycarbonate case is rated to IEC 60529 IPX7, meaning it withstands incidental immersion in up to 1 m of water for up to 30 minutes.
Can the GHC 20 be used with both powerboats and sailboats?
Yes. It is compatible with newer Garmin autopilots and legacy GHP systems on both power and sail vessels, and supports heading hold, steering patterns and GPS route following.
Can I control the autopilot remotely?
Yes. The GHC 20 can be paired with the Garmin Reactor wireless autopilot remote control so you can engage and steer the autopilot away from the helm.
How is the GHC 20 mounted?
It can be flush mounted or flat mounted in the dashboard, preserving a clean glass-helm appearance. The included template and hardware are used for installation.
