The Garmin Cortex™ H1 Tethered Handset (Part Number: 010-02816-00) is a rugged, multi-station remote station handset designed for full operational control of the Cortex™ VHF and AIS smart system hub. Featuring a bright, sunlight-readable 4-inch color touchscreen display paired with dedicated physical buttons and a click-wheel, it provides intuitive one-handed access to Class A-style AIS target tracking, VHF communications, and real-time vessel monitoring data. Engineered for demanding marine environments, the unit is IPX8 waterproof, includes a high-powered 85 dBA speaker for crisp audio clarity in noisy helm conditions, and features an optically bonded display that functions reliably with wet hands or gloves. Powering directly via its hardwired coiled tether cable, the H1 handset acts as a seamless command station for bridge wings, flybridges, or interior helms, allowing mariners to initiate direct DSC calls to AIS targets with a single touch and manage onboard alerts from anywhere on the vessel.

In the Box

H1 Tethered Handset
H1 Handset Cradle

Technical Specification

General
Unit size	164.8 x 71.8 x 21.4 mm (6 1/2″ x 2 13/16″ x 7/8″)
Weight	H1: 285 g (0.63 lb) H1P: 235 g (0.52 lb)
Operating voltage	12-24V compatible
Water rating	IPX8 (water submersion rating to 10’)
Display Type	color TFT LCD, capacitive touch
Display Size	4″ (102 mm)
Display Resolution	640 x 800 pixels
Auto dimming	✓
Battery life	H1P only: Lithium polymer, 2 hour full charge, > 10 hours nominal operation
Operating temperature	-25°C to +55°C (-13°F to 131°F)
Backlight	600 cd/m2

VHF Features
Audio record and playback	✓
Auto squelch	✓
Dual/Tri watch	✓
Presets watch	✓
Loud hailer	✓
Loud Hailer listen-back	✓
AIS target display	✓
AIS collision and MOB alarms	✓