Industry Solutions · Marine & Offshore
Seaworthy RF
From Vessel to Offshore
D&G Antennas — trading as Xtend Communications — manufactures and distributes IP67/IP68 marine-grade RF antennas for vessel telemetry, offshore platform monitoring, and coastal IoT infrastructure in Australia. We are a manufacturer and distributor — we do not perform vessel installations. Our antennas feature UV-stable FRP radomes, salt-spray tested construction, and 50Ω precision impedance. Primary product: DG850MB-CT (IP67/68, 800–900 MHz, 3 dBi, 5m RG58 pre-terminated). High-gain option: DG900MB-HG (+6 dBi, 700–2700 MHz, IP65) for shore-link uplinks. Custom cable assemblies to any length and connector type. B2B supply from 50 units.
Ingress Protection
IP67 / IP68 — tidal & spray zone rated
Radome
UV-stable FRP — no yellowing, no cracking
Corrosion
Salt-spray tested to marine standards
Cable
Pre-terminated 5m RG58 cable runs available
Pattern
Stable radiation pattern in vessel motion
Testing
Every unit tested on Anritsu Site Master
— Applications
Built for Water
Any Environment
Vessel Telemetry
AIS gateway uplinks, engine monitoring, and hull sensor telemetry require antennas that maintain pattern stability across the horizon regardless of vessel motion or heel angle.
Offshore Platform Monitoring
Spray zones and tidal environments demand IP68-rated components. UV-stable FRP radomes prevent the cracking and signal absorption that degrade standard fiberglass in offshore conditions.
Coastal IoT Infrastructure
LoRa and 4G gateway antennas deployed in coastal environments face continuous salt air, UV exposure, and high-humidity conditions. Only marine-grade construction survives long-term.
— Recommended Products
Specified for
Marine Environments
800 – 900 MHz
DG850MB-CT
Cable-Terminated Marine Omni
Primary marine antenna. Hull-mount, deck-mount, or parapet installation. 5m RG58 cable pre-terminated. SMA and N-Type variants available — specify on order.
Full Specs & Datasheet700–960 / 1700–2700 MHz
DG900MB-HG
High-Gain Multiband Omni
Shore-link and gateway uplink. +6 dBi gain maintains link budget over water where signal scattering degrades omni performance on standard gain antennas.
Full Specs & DatasheetDC – 6 GHz
Custom Cable
Custom RF Cable Assembly
Custom-length interconnect runs from antenna to below-deck radio equipment. Any length, N/SMA/TNC/BNC terminations. UV-stable PE jacket.
Full Specs & Datasheet— Aqua Series
Marine-Grade Construction.
No Compromise.
The Aqua Series is engineered specifically for salt-air and submersion environments where standard IP ratings fail. UV-stable FRP radomes eliminate the yellowing and micro-cracking that degrades fiberglass signal absorption over time in coastal and offshore deployments.
IP67 / IP68 Rated
UV-Stable FRP Radome
Salt-Spray Certified
Custom Cable Lengths
— Get a Quote
Procurement
Made Simple
Submit your requirements below. Our engineering team responds within 1 business day with pricing and lead times.
Why quote through Xtend?
D&G Antennas — OEM supplier to ADT, JCI, Cardtronics, and Elsema. Direct to your project.
Direct to the Manufacturer
D&G Antennas makes the product. Your quote goes to the source — not a distributor or call centre.
200–500 Units Is Our Normal
Strategic pricing at 50+ units. Volume orders are our standard business — we won't blink at your quantity.
Custom Assemblies to Spec
Non-catalogue cable runs, frequency-tuned antennas, custom connector types. Quoted against your system drawings.
1-Day Response
We supply ADT, JCI, and Cardtronics — we understand what a procurement deadline means. Response within 1 business day.
50+ Units
Strategic discount applies automatically at 50 units per line item. Account pricing available for ongoing procurement.