Description
High Performance 2.7m Fibreglass VHF Antenna for Yachts and Workboats
CELmar3-1 Marine VHF Antenna from AC Antennas is a high-performance 2.70m fibreglass VHF antenna designed for sailboats, cruising yachts, workboats and commercial vessels. Covering the marine VHF frequency range of 156–162.5 MHz, the CELmar3-1 provides reliable omnidirectional communications with 3 dBd / 6 Marine dB gain.
Built for demanding marine environments, this lightweight marine VHF antenna features a collinear coaxial dipole design, white fibreglass construction, IP66 protection, a pre-installed 6m RG58 coaxial cable and a standard 1″-14 TPI female ferrule for compatibility with common marine antenna mounts.
- 2.70m fibreglass marine VHF antenna
- 156–162.5 MHz marine VHF frequency coverage
- 3 dBd gain / 6 Marine dB
- 100W maximum input power
- Omnidirectional radiation pattern
- Pre-installed 6m RG58 coaxial cable
- 1″-14 TPI female ferrule mounting thread
- IP66 marine weather protection
- Suitable for sailboats, cruising yachts, workboats and commercial vessels
CELmar3-1 Marine VHF Antenna is designed for vessel owners who want stronger VHF performance than a compact short antenna can usually provide. Its 2.70m fibreglass body and 3 dBd gain make it suitable for primary marine VHF installations where range, reliability and clear omnidirectional coverage are important.
CELmar3-1 Marine VHF Antenna for Longer Range Boat Communications
The CELmar3-1 Marine VHF Antenna is positioned as a higher-performance option within the CELmar family. Compared with shorter compact antennas, its longer 2.70m construction and 3 dBd gain provide a stronger operating profile for yachts, sailboats and workboats needing dependable VHF communication across coastal and working marine environments.
This makes it suitable for:
- Cruising yachts and sailing vessels
- Workboats and harbour craft
- Commercial marine vessels
- Coastal and nearshore operating areas
- Primary VHF radio installations
- Installations where improved range is preferred over compact antenna size
Key Features
- AC Antennas CELmar3-1 marine and land-based VHF antenna
- 3 dBd / 5.15 dBi / 6 Marine dB gain
- 156.0–162.5 MHz VHF frequency range
- 100W maximum input power
- Omnidirectional radiation pattern
- 2.70m white fibreglass construction
- Pre-installed 6m RG58 coaxial cable
- 1″-14 TPI female ferrule
- IP66 ingress protection
- 200 km/h survival wind speed
- DC shorted design
- Brass radiating elements
Technical Specifications
The CELmar3-1 Marine VHF Antenna combines a 2.70m fibreglass antenna body, 3 dBd gain and omnidirectional coverage for reliable everyday marine VHF communications.
| Manufacturer | AC Antennas |
|---|---|
| Model | CELmar3-1 |
| Product Number | 130000-P |
| Product Group | VHF |
| Design | Collinear coaxial dipole |
| Pattern | Omnidirectional |
| Frequency Range | 156.0–162.5 MHz |
| Bandwidth | 6.5 MHz |
| Nominal Impedance | 50 Ohm |
| Maximum Input Power | 100W |
| Gain | 3 dBd / 5.15 dBi / 6 Marine dB |
| VSWR | <1.5:1 |
| Polarisation | Vertical |
| DC Shorted | Yes |
| DC Grounded | No |
| Cable | 6m / 20ft RG58 cable supplied |
| Length | 2.70m / 8.86ft |
| Sections | 1 |
| Weight | 0.90kg / 2.00lbs |
| Survival Wind Speed | 200 km/h / 55 m/s / 124 mph |
| Wind Area | 0.0365m² / 0.3929ft² |
| Wind Load @ 160km/h | 53N |
| Material | Fibreglass |
| Colour | White |
| Ingress Protection | IP66 |
| Thread | 1″-14 TPI female ferrule |
| Operating Temperature | -40°C to +60°C |
Mounting and Installation
The CELmar3-1 Marine VHF Antenna uses a standard 1″-14 TPI female ferrule, making it suitable for common marine antenna mounts. The 2.70m antenna length should be considered when selecting a mounting position, especially on smaller vessels or installations exposed to movement, vibration and wind loading.
Suitable mounting options may include mast mounts, rail mounts, deck mounts and ratchet mounts depending on the vessel layout. For best performance, mount the antenna as high and as clear as practical, away from metal obstructions, radar scanners, other antennas and sharp cable bends.
For installation support, see our Marine VHF Antenna Mounting Guide, Marine Antenna Thread Sizes Guide and Marine Antenna Mount Compatibility Guide.
How Antenna Height Improves VHF Range
The CELmar3-1 combines a 2.70m antenna length with 3 dBd gain to provide strong marine VHF performance. However, antenna mounting height remains one of the most important factors affecting communication range. Installing the antenna as high as practical can significantly improve line-of-sight communications and increase the usable radio horizon.
For more detail, read our guides on VHF Antenna Height vs Range and Marine VHF Antenna Range.
3 dBd Gain for Stronger Marine VHF Performance
A 3 dBd antenna such as the CELmar3-1 offers more gain than compact 0 dBd marine VHF antennas. This can help improve signal strength in suitable installations, especially when combined with good antenna height, clear placement and a sound coaxial cable route.
For a practical comparison of gain options, see our guide: 3dB vs 6dB Marine VHF Antennas.
Cable and Connection Guidance
The CELmar3-1 is supplied with a pre-installed 6m RG58 cable. The datasheet does not specify a fitted radio-end connector, so connector requirements should be checked against the vessel’s VHF radio and installation route before fitting.
For longer cable runs or installations with higher cable loss risk, see our Marine VHF Antenna Cable Guide.
Suitable Vessel Applications
The CELmar3-1 Marine VHF Antenna is a strong option for vessels where dependable range and performance are more important than the smallest possible antenna size. It is particularly relevant for cruising yachts, workboats and commercial vessels requiring a durable marine VHF antenna for primary radio communications.
- Cruising yachts requiring a higher-performance VHF antenna
- Sailboats needing dependable mast or rail-mounted communications
- Workboats needing robust day-to-day VHF radio performance
- Commercial vessels operating in coastal or harbour environments
- Primary fixed VHF radio installations
Downloads and Manufacturer Information
Download CELmar3-1 Datasheet (PDF)
Additional manufacturer information is available from AC Antennas.
Related Guides
- Marine VHF Antennas Information
- Marine VHF Antenna Range
- VHF Antenna Height vs Range
- 3dB vs 6dB Marine VHF Antennas
- Marine VHF Antenna Cable Guide
- Marine VHF Antenna Mounting Guide
- Marine Antennas Explained
CELmar3-1 Marine VHF Antenna FAQs
Who should choose the CELmar3-1 Marine VHF Antenna?
The CELmar3-1 Marine VHF Antenna is suitable for boat owners who need a higher-performance fibreglass VHF antenna for cruising yachts, sailboats, workboats or commercial vessels.
What gain does the CELmar3-1 provide?
The CELmar3-1 provides 3 dBd gain, equivalent to 5.15 dBi or 6 Marine dB.
How long is the CELmar3-1 antenna?
The antenna is 2.70m long, which is approximately 8.86ft.
What cable is supplied with the CELmar3-1?
The CELmar3-1 is supplied with 6m / 20ft of RG58 coaxial cable.
What mount thread does the CELmar3-1 use?
The antenna uses a standard 1″-14 TPI female ferrule, making it compatible with many marine antenna mounts using the same thread standard.
Is the CELmar3-1 suitable for workboats?
Yes. Its 2.70m fibreglass construction, 3 dBd gain and rugged marine design make it suitable for workboats and commercial vessels requiring dependable VHF communication.
Does antenna height affect VHF range?
Yes. VHF communication is strongly affected by line of sight. Mounting the CELmar3-1 higher and clear of obstructions will generally improve usable communication range.
The CELmar3-1 Marine VHF Antenna is an excellent choice for vessel owners seeking a higher-performance 3 dBd fibreglass antenna for reliable marine VHF communication.
Related F&C Marine guide
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