HF230L-N
The HF230L-N is a compact HF antenna for naval applications operating over a frequency range of 1.6 to 30 MHz. It is designed to provide superior Near Vertical Incident Skywave (NVIS) performance at distances from 0 to 500 km compared to a 10 m whip and allows continuous communications in ground-wave, NVIS and skywave applications.
The HF230L-N is a magnetic dipole antenna which can be placed at any appropriate top-side position on the ship. The magnetic characteristics of the antenna means the antenna has a far superior signal-to-noise ratio compared to whip antennas as it decoupled from the near field electrostatic noise sources.
This compact antenna is recommended for multiple antenna top-side applications, both because of its small size and because it reduces co-site interference with all V/UHF whip antennas.
The HF230L-N has been designed to give superior performance and easier installation at a far lower cost compared to other naval HF NVIS antennas.
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| Frequency Range | 1.6-30 MHz |
|---|---|
| Impedance | 1 to 1000 Ω 50 Ω nominal |
| Power Rating | 500 W PEP and average |
| Gain | -10 dBi @ 3.5 MHz -4 dBi @ 10 MHz |
| Radiation Pattern | See Charts Tab |
| Power Supply | 18-32 VDC, normally supplied from power amplifier |
| Connector | 10 mm stud for RF MIL-C-5015, 7pin for interface to ATU and supply voltage |
| Interface | The antenna has two digital inputs and one output, and a RS485 serial port. Software is then configured depending on radio system |
| Design | Double 20 mm aluminium radiating element with 8 support rods. Enclosure made from fibreglass. |
|---|---|
| Size | Enclosure: 80 x 40 cm (H x W) Radiating loop: 2 x2 m |
| Weight | Total: < 40 kg |
| Wind Rating | 55 m/s = 201 km/h |
| Finish | Polyurethane lacquer, normally grey |
| Environmental | Test Method: Per MIL-STD-810F Shock and Vibration: Ship Water Resistance: IP67 Temperature Range: – 40°C to + 71°C |
| Installation | See Datasheet |
