Overview

SSB Electronic AS-304 Four Port Mast Mount Antenna Switch

SSB Electronic AS-304 Four Port Mast Mount Antenna Switch can be used on all frequencies up to 600 MHz and is electrically operated using a control cable and an optional control console. The weatherproof housing allows the mast-mounted switch to be installed as close to the antennas as possible with the connectors facing downward to keep connections dry. Equipped with heavy duty relays, the AS-304 is recommended for a variety of tasks due to its wide frequency coverage, low insertion loss and high power capability. Ratings are dependent upon the selected connector version, UHF or Type-N, as detailed below.

The control of the AS-304 provides a no-voltage default selection of Antenna 1, with 13.8 VDC applied to one of three pins of the chassis 4-pin DIN connector to select Antennas 2, 3 and 4, with the fourth pin ground. The mating connector is supplied for the user supplied four conductor control cable. This type of 1-of-3 antenna port selection is handled with the optional DXE-CC-4 Four Position Control Console featuring a large rotary switch and 4 indicator LEDs, or with another third-party control device, or a user supplied rotary switch.

Technical Data for the SSB Electronic AS-304 4 Port Mast Mount Antenna Switch

- Frequency range: DC – 600 MHz

- Antenna ports: 4

- Insertion loss: < 0.2 dB up to 500 MHz

- Standing Wave Ratio: <1.2 : 1

- RF Power Handling for AS-304 UHF (SO-239) Connectors:
Up to 30 MHz: 1.5 KW PEP/1 kW CW/500W Digital
144 MHz: 1 KW PEP/500W CW/250W Digital
432 MHz: 600 W PEP/300W CW/150W Digital

RF Power Handling for AS-304 N (Type-N) Connectors:
Up to 30 MHz: 800 W PEP/400 W CW/200W Digital
144 MHz: 800 W PEP/400 W CW/200W Digital
432 MHz: 600 W PEP/300W CW/150W Digital

- Relay Power: 12 -14 V at 80mA max.

- Mast diameter, max.: 2.283 in. (58 mm)

Documentation

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