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Codan's 411 Terminated Folded Dipole Antenna is a 2-wire antenna designed for broadband operation in fixed stations.

The model of 411 Antenna should be selected to suit the application depending on the required power rating and the maximum amount of available space to install it. As a general rule, the radiation efficiency of the 411 Antenna increases with antenna length so it is recommended to select the longest variant that the installation site can accomodate.

The 411 Antenna can be mounted horizontally between two support systems, or as an inverted “V” using a single central support mast. To optimise the antenna for Near Vertical Incidence Skywave (NVIS) communication, use an inverted V configuration or adjust the installed height above ground.

The 411 Antenna is designed and manufactured with corrosion and UV resistant materials to withstand a wide range of environments.

Codan Hf Ant411 Htermfolddipole Pld

Key Features

Performance

Excellent performance for short to medium distance HF communications. Available in a range of lengths to suit installation requirements.

Easy to install

Supplied completely assembled and ready for installation. A range of coaxial cable lengths and types, and mast options are available but are ordered separately.

Power rating

Up to 1000 W RF power rating. Separate variations are available to support power levels of 125 or 1000 W.

Specifications

  • General
  • Frequency range 2 to 30 MHz
  • Connector UHF-type (150 W), N-type (1000 W)
  • Input impedance 50 ohm
  • VSWR Less than 2.1
  • Power rating 150 W PEP, 100 W CW
    1000 W PEP, 600 W CW
  • Wind rating 160 km/hr

Values noted are typical. Equipment descriptions and specifications subject to change without notice or obligation.

FAQs

How do I choose the best antenna for my HF system?

For mobile applications, we generally recommend the Codan 3040 Automatic Whip Antenna . For more demanding applications, the 3042 tuner and associated whip is recommended. For base station applications, we generally recommend the 411 Terminated Folded Dipole Antenna, or a full Delta Antenna, if sufficient space is available.

Proper antenna selection requires consideration of many parameters including desired range of operation, available frequencies, transmit power levels, space constraints, and type of service being provided (voice / data). Codan offers a wide range of antennas and masts for different requirements.

Please visit our Antennas & Masts page for more information on our range. For assistance with antenna selection, contact Codan.

When do I need to use a Mast in a HF system?

Most base station antennas require a mast. The antenna consists of the wires and transformers used for communication. However, they require a mast for the antenna to be erected in the air. The mast consists of aluminium or fibreglass poles and guy wires which prevent movement of the mast under antenna, wind and ice loading. A mast height is generally between 10 and 15 metres.

Who do I contact for service and support?

Codan has accredited service centres worldwide. For contact information, please visit our Support page.

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