Comar AS300 AIS Class B Antenna Splitter

Description

AS300 AIS Class B marine band VHF Antenna Splitter

AS300 AIS Class B Antenna Splitter

The Comar AS300 splitter is a new product that allows VHF radios, AIS Class B transponders, and FM radios to be connected to one VHF antenna.

The AS300 is designed for operation with marine VHF radios and AIS transponders.  The great advantage of this splitter is that the radio operates normally when the splitter is switched off which means that it can be conveniently operated on the same circuit.  When the comar CSB200 class B AIS transpoder and comar AST300 splitter are switched the splitter suppresses transmission from the comar CSB200 class B AIS transpoder also if it detects a voice transmission on the VHF radio the actions are reversed – therefore in an emergency voice transmission takes precedence.

Designed to operate with the majority of AIS transponders we have carried out trials and found the unit gives excellent operation with the Comar CSB200 transponder and a marine VHF antenna.  This option allows the advantage of having the AIS antenna at the masthead giving significantly extra transmission and receiving range.

• Simple and quick to install, using a single VHF antenna for both AIS and VHF operation saves installation cost and time.
• Failsafe operation ensures priority to VHF voice and DSC even if the splitter power supply fails.
• Minimal in circuit insertion loss
• Additional output available for FM radio antenna connection
• Simple LED indicators show when VHF voice radio or AIS is transmitting or receiving.
• Includes RF leads for connection with AIS transponder, VHF radio, and a power lead.
• Operation from 12/24 VDC

 

OVERVIEW

The AS300 Antenna Splitter from Comar Systems is designed to allow an AIS Class ‘B’ Transponder or an AIS Receiver to share the main VHF Antenna used by the VHF Radiotelephone, which removes the need and expense of installing an additional VHF antenna. Comar Antenna Splitters are built to the highest standards to ensure that the performance of the connected AIS and VHF Radio equipment is not compromised.

SPECIAL FEATURES

Automatic signal routing to a single VHF antenna  Works with an AIS Transponder (Class ‘B’) or AIS Receiver VHF transmissions have priority over AIS  Equipped with an FM Antenna Connection for receiving Public Radio Broadcasts

APPLICATIONS

• Enables AIS to be used with an existing installed antenna
• Removes the need and expense of installing a second antenna

ACCESSORIES

• AV100 – Stainless Steel Whip Antenna
• AV400 – Heavy Duty Commercial GRP Antenna

RELATED PRODUCTS

CSB200 – Class B AIS Transponder
CSB200S – Class B AIS Transponder with internal splitter

PHYSICAL

Weight: 600 g  Dimensions: L 140 x W 120 x H 50 mm Mounting: To flat surface with case brackets  Connections: Power: 1 m 2-core captive cable Antenna: SO239 UHF Connector VHF Radiotelephone: SO239 UHF Connector AIS Transponder / Receiver: BNC Connector FM Radio: RCA Phono Socket  Finish: Grey aluminium housing; black end plates

ELECTRICAL

Power Supply: 12 / 24 V dc  Operating Current: AIS / VHF Transmit: 135 mA (typical) AIS / VHF Receive: 65 mA (typical)  Antenna Impedance: AIS / VHF / Antenna: 50 Ω; FM Radio: 75 Ω

OPERATIONAL

Frequency Range: 156.025 MHz to 162.025 MHz  Sensitivity: < -112 dBm  Display: 3 Indicator LEDs (ON; AIS TX; VHF TX) Switching Time: From Receive to AIS TX or VHF TX: 20 microseconds

ENVIRONMENTAL

IP rating: IP40  Operating temp: -15°C to +55°C  Storage temp: -20°C to +70°C  Operating Humidity: Up to 93%  Compass: Safe Distance 50 cm

APPROVALS IEC 60945

ADDITIONAL INFORMATION

Supplied: AS300 Splitter with Bracket Mount, VHF Patch lead; 1 m; with 2x PL259 male connectors AIS Patch lead; 1 m; with 2x BNC male connectors FM Radio: RCA Phono Plug (no cable)

Required: 4x M4 mounting screws

Shares an existing antenna between a VHF Radio Telephone and an AIS Transponder

 

Need more help then please contact us anytime for help, advise and information regarding this product

Document

Product Datasheet v06r01

External Links

Comar Home Page: comarsystems.com

 

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