MAS-2 HF Multiport Antenna w/RLPA 2-30×2/4-30×2/6-30 MHz 106 ft
Heavyweight multiport (4 Omni, 1 Directional) spiral with 6-30 Mhz RLPA.
- Frequency Range: 2-30, 4-30, 2-30, 2-30, 6-30 MHz
- Gain: 7, 7, 7, 7, 12 dBi
- VSWR: 2.0:1 typical, 2.5:1 typical, 4.0:1 Max, 2.0:1 typical, 2.0:1 typical, 2.0:1 typical
- Polarization: Elliptical, Vertical, Horizontal, Elliptical, Horizontal
- Pattern: Omni, Omni, Omni, Omni, Directional
- Size: 106′ H x 100′ L x 100′ W
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Description
Applications:
The MAS-2 multiport antenna system is designed for installations where space is at a premium and multiple communication circuits are needed. It provides five independent antenna modes. Two of these modes are NVIS modes for short range skywave circuits; two are low angle modes for medium range circuits; and the fifth mode is a high gain rotatable log periodic antenna for long range circuits. The relatively small installation area together with the five independent antenna ports make the MAS-2 ideally suited for congested antenna fields or sites where space is severely limited.
Features:
The MAS-2 multiport antenna system combines the four omnidirectional port capability of the SPQ-330 with the rotatable log periodic array (RLPA) features of the LPH-30 to provide a truly five port antenna system occupying the space normally required for a single antenna. All five ports may be used independently for transmit and receive. The RLPA has high gain, azimuth selection and permits communication between a fixed site and mobile stations such as ships and aircraft. It also features a torque tube and base mounted rotator thereby providing easy accessibility for inspections and maintenance. The spiral is a four arm equiangular design wound on a pyramidal structure formed by the center support tower and four catenaries. It is fed using an AP four-port hybrid and is protected under US Patent 5189434.
Optional Equipment:
Obstruction lights, erection kit, repair kit with winch, safety climbing equipment. Coaxial cable, connector adapters and mating adapters. Computer controller with RS-232 interface. A 230V 50Hz unit is also available.
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