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AC ANTENNA antenna CX-4
NegotiableUpdate on 05/17
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Overview
The AC ANTENNA CX-4 antenna is an omnidirectional dipole VHF antenna produced by the Danish company AC Antennas, with a frequency coverage of 146.0-162.5 MHz, a power of 150W, and a gain of 0 dBd (2.15 dBi). It uses brass radiating elements and fiberglass cover, UHF female head (SO259), a length of 1.26m, a weight of 0.5kg, and is compatible with 1 "14TPI and 1 1 1/4" 11 specification installation threads. It has the characteristics of corrosion resistance, vibration resistance, and resistance to 200km/h strong winds
Product Details
AC ANTENNA antenna CX-4
AC ANTENNA antenna CX-4
1、 Product performance
AC ANTENNA CX-4 is an omnidirectional dipole VHF antenna produced by AC Antennas in Denmark, with excellent core performance. The frequency coverage is 146.0-162.5 MHz, suitable for VHF FM maritime communication and terrestrial VHF signal transmission, with a power capacity of up to 150W, which can meet the requirements of conventional communication transmission. Gain of 0 dBd (2.15 dBi), vertical polarization, 360 ° omnidirectional radiation, and uniform signal coverage. The standing wave ratio (VSWR) is below 1.5:1, ensuring efficient signal transmission, and DC short circuit and grounding can effectively protect equipment. The structure is sturdy, resistant to vibration and corrosion, and can withstand strong winds of 200km/h. It has an IP66 protection level and is suitable for harsh outdoor environments such as sea and land. The temperature range is -55 ℃ to+60 ℃.
2、 Materials used
Radiation element: made of brass material, with good conductivity and can prevent galvanic corrosion, suitable for high salt spray environments such as the ocean.
Outer cover: made of glass fiber (glass fiber), with insulation and mechanical strength, anti-aging and impact resistance.
Coating: The surface is covered with white polyurethane paint to further enhance corrosion resistance and UV resistance.
Interface: Equipped with UHF female head (SO259), stable connection, compatible with commonly used RF cables.
3、 Parameter Table
| parameter category | specific parameters |
|---|---|
| Electrical parameters | Frequency range: 146.0-162.5 MHz Power capacity: 150W Gain: 0 dBd (2.15 dBi) Impedance: 50 Ω Standing wave ratio:<1.5:1 Polarization mode: Vertical polarization Interface type: UHF female head (SO259) DC characteristics: DC short circuit, DC grounding |
| mechanical parameters | Length: 1.26m (4.13ft) Weight: 0.5kg (1.1lbs, excluding installation parts) Installation thread: compatible with 1'14TPI and 1 1/4'11 specifications Wind resistance: 200km/h Protection level: IP66 Temperature range: -55 ℃ to+60 ℃ |
4、 Model number
Basic model: CX-4 (product code ACM CX4), as well as derivative models such as CX4-11 that are compatible with different installation threads. The core performance is consistent, with only differences in installation compatibility.
5、 Purpose:
Maritime field: adapted to ship AIS system, VHF FM very high frequency wireless telephone, used for communication between ships and between ships and shore to ensure navigation safety.
Land applications: can be used for receiving and transmitting VHF signals in land VHF communication base stations, emergency communication vehicles, etc., suitable for security, rescue and other scenarios.
Other: It can also be used for VHF frequency band signal transmission of some industrial equipment to meet specific wireless communication needs.
6、 Packaging
The standard packaging usually includes the CX-4 antenna body, N240F mounting accessories, and some versions may come with an adapted mounting base (such as N171F). The packaging is made of impact resistant materials, which can effectively protect the antenna from damage during transportation, and comes with product manuals, quality certificates, and other documents.
7、 Instructions for use
Installation preparation: Check the appearance of the antenna for any damage, prepare suitable installation brackets, 50 Ω coaxial cables (such as RG-58, RG-8X, etc.), and connection joints.
Installation steps: Select an open and unobstructed installation location (such as a ship mast or land communication tower), and fix the antenna according to the corresponding thread specifications; Connect one end of the coaxial cable to the UHF female antenna and the other end to a VHF radio or communication equipment; Ensure the connection is tight and perform waterproof sealing treatment (waterproof tape can be used to wrap the interface).
Usage guidelines: Avoid power input exceeding 150W during use to prevent damage to the antenna; Regularly check the antenna fixation, cable connection status, and surface coating to avoid affecting communication quality due to looseness or corrosion; Thunderstorm weather requires attention to lightning protection, which can be combined with overall lightning protection measures for equipment.
Maintenance points: Clean the surface dust and salt spray of the antenna daily, wipe it with a dry cloth, and avoid using corrosive cleaning agents.
