Description
UHF antenna 420-460 MHz — “`html CX-UHF3-ML, Marine and Land Based UHF Antenna. Tx/Rx. 220W 3 dBd. N-Female. Packed in a tube The CX-UHF3-ML UHF Antenna (420–460 MHz) is a high-performance omnidirectional antenna with a 220W power rating and 3 dBd gain . Built for marine and land.
CX-UHF3-ML Marine UHF Antenna
The CX-UHF3-ML marine UHF antenna is a professional 3 dBd omnidirectional antenna for marine and land-based UHF communications across the 420–460 MHz range. It is suited to offshore utility vessels, coastal operations, support fleets, vessel coordination, and commercial marine RF systems.
Built with marine-grade fibreglass construction, an N-Female connector, IP68 protection, DC grounding, and 220W power handling, the CX-UHF3-ML delivers dependable lower-frequency UHF performance for demanding coastal and offshore communication environments.
Datasheets:
CX-UHF3-ML Datasheet
Marine Catalogue
CX-UHF3-ML Marine UHF Antenna for Offshore Coastal Communications
The CX-UHF3-ML marine UHF antenna is designed for professional marine and land-based communication systems operating across the 420–460 MHz commercial UHF range. With 3 dBd gain, omnidirectional coverage, and a 220W power rating, it is well suited to offshore support vessels, coastal utility fleets, workboats, survey vessels, marine logistics teams, and shore-based communication infrastructure.
This antenna is particularly useful where operators require reliable lower-frequency UHF performance for practical offshore and coastal communication networks. Its 420–460 MHz operating range supports dependable vessel-to-vessel and vessel-to-shore communication where broader propagation behaviour and robust marine RF performance are required.
Offshore Coastal Utility Installation
The CX-UHF3-ML is positioned for offshore and coastal utility communication systems where reliable UHF links are needed between workboats, marine support fleets, offshore assets, coastal stations, and operational field teams.
Its lower commercial UHF frequency range makes it suitable for marine communication systems where practical coverage, vessel coordination, and operational reliability are more important than dense port infrastructure or high-frequency industrial networking.
420–460 MHz Marine Commercial Allocation
The CX-UHF3-ML supports multiple frequency options across the 420–460 MHz commercial UHF range. This makes it useful for RF planning where offshore coverage, coastal diffraction, channel allocation, licensing, antenna height, and vessel operating area must all be considered.
Coastal Offshore Operations Coordination Network
Offshore and coastal operations often involve multiple vessels, shore facilities, offshore platforms, remote assets, and utility teams working together. The CX-UHF3-ML supports this type of marine RF architecture by providing balanced 3 dBd omnidirectional UHF coverage across operational coastal and offshore environments.
Professional Marine RF Installation
Correct installation remains essential for reliable UHF performance. The antenna should be mounted with clear line of sight where practical and kept suitably separated from radar scanners, satellite domes, navigation antennas, high-power transmitters, and other major RF noise sources.
- Marine UHF Antenna Mounting Guide
- Marine UHF Antenna Frequency Guide
- Marine UHF Antenna Gain Explained
- Marine UHF Antenna SWR Troubleshooting
- UHF Antenna Cable Loss Explained
- Marine RF Interference Explained
CX-UHF3-ML Technical Specifications
| Product Group | UHF |
| Design | Collinear coaxial dipole |
| Pattern | Omnidirectional |
| Frequency Range | A: 420.0–450.0 MHz B: 420.0–455.0 MHz C: 420.0–460.0 MHz |
| Bandwidth | A: 30 MHz B: 35 MHz C: 40 MHz |
| Nominal Impedance | 50 Ohm |
| Maximum Input Power | 220W |
| Gain | 3 dBd / 5.15 dBi / 6 Marine dB |
| VSWR | A: <1.5:1 B: <2.0:1 C: <2.5:1 |
| Polarisation | Vertical |
| Connector | N-Female |
| DC Shorted | Yes |
| DC Grounded | Yes |
| Length | 1.42m / 4.66ft |
| Sections | 1 |
| Weight | 0.65kg / 1.45lbs |
| Survival Wind Speed | 200 km/h / 55 m/s / 124 mph |
| Wind Area | 0.0214 m² / 0.2304 ft² |
| Wind Load @ 160 km/h | 31 N |
| Material | Fibreglass |
| Colour | White |
| Ingress Protection | IP68 |
| Thread | 1″ 14TPI male |
| Mounting | Mounting excluded |
| Operating Temperature | -55°C to +70°C / -67°F to +158°F |
Datasheets
Download CX-UHF3-ML Datasheet
View AC Antennas Marine Catalogue
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For UHF antenna 420-460 MHz supply or replacement enquiries, confirm the exact model or part reference against the equipment already installed. Installation requirements for the UHF antenna 420-460 MHz should be checked against the vessel or shore-side system before ordering.
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