Comrod AT82M Marine Transmitting Antenna

Comrod AT82M Marine Transmitting Antenna

Application

AT82M is a high performance glass-fibre transmitting antenna for marine coastal and HF telephony bands (simplex and duplex SSB). It matches well modern SSB marine telephony transmitters. The antennas can be part of any MF/HF communication system but is specially designed to satisfy the demands of the GMDSS. The AR82M can be supplied as a two or three section antenna. The three section (AT82M-3) has a shipping dimension of under three metres.

Specifications Comrod AT82M Marine Transmitting Antenna

Electrical specifications

• Frequency range: 1.6-30 MHz
• Power rating: 1.5 kW PEP
• Impedance: See separate section
• Polarization: Vertical
• Pattern: Omnidirectional
• Electrical length: 7.5 m (25 ft)

Mechanical specifications

• Design: Self supporting fiberglass rod with plated aluminium mounting hardware.
• Height: 8 m (27 ft) nominal
• Weight:
  º 2-section: 8.2 kg
  º 3-section: 8.3 Kg
• Sections:
  º 2-section:
  * Base: AXB42 Bracket, side feed
  * Top: APB41
  º 3-section:
  * Base: AXB32M-S (with U-Bolts)
  * Middle: ASM25-2
  * Top: APB25
• Wind rating: 55 m/s = 125 mph
• Moment of flexure: 90 kpm at 55 m/s
• Deflection due to wind load: 4.6 m (15 ft) at tip ball at 55 m/s wind load
• Finish: Polyurethane lacquer, white
• Temperature range -55 °C, +55 °C, -67 °F, +131 °F
• Ice build-up: Not affected
• Water Proofing: IP67

Mast/wall mounting – Mounting by means of U-bolts with nuts (included) or directly on wall or steel plate.
Feed Options – The AT82M can be supplied as standard with a side feed or with an optional passive transformer.
Impedance Measurements – Antenna mounted on a 2 m steel pipe over flat steel roof. Feed line 2 m.

Comrod AT82M Datasheet

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