The AS300 Antenna Splitter 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. The AIS / VHF Antenna Splitter facilitates smooth operation.
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. This is critical when using an AIS / VHF Antenna Splitter.
Note: This product was previously known as the AST300
FEATURES
- Allows use of a single VHF Antenna installation shared between AIS and VHF Radiotelephone, thanks to the AIS / VHF Antenna Splitter.
- Automatic Routing of AIS or VHF Transmissions
- VHF transmissions have priority over AIS
- Works with an AIS Transponder (Class B) or AIS Receiver
- FM Antenna Connection for receiving Public Radio Broadcasts
- Compact Aluminium Housing
- 12 V dc
APPLICATIONS
- Enables AIS to be used with an existing installed antenna
- Removes the need and expense of installing a second antenna, which an AIS / VHF Antenna Splitter can prevent.
AIS/VHF ANTENNA SPLITTER’S PURPOSE
An AIS/VHF antenna splitter’s purpose is to let your VHF radio and your Automatic Identification System (AIS) receiver or transponder share a single VHF antenna, avoiding the need for a second antenna, saving space, simplifying installation, and reducing cable runs. It automatically switches the antenna’s connection, giving the transmitting device (radio or AIS) exclusive use during transmission while allowing both to receive simultaneously, often with built-in amplification to boost AIS reception and a fail-safe to prioritize the VHF radio.
KEY FUNCTIONS & BENEFITS:
- Single Antenna Use: Connects both your VHF radio (for voice comms) and your AIS device (for ship tracking) to one antenna.
- Simplified Installation: Eliminates the need to mount and run cable for a second antenna, ideal for smaller boats.
- Space & Clutter Reduction: Prevents antenna clutter on vessels with limited space, like sailboats or RIBs.
- Automated Operation: Seamlessly handles switching between transmit and receive modes for both devices.
- Signal Optimization: Modern splitters use amplifiers (gain) for better AIS reception and have “ZeroLoss” or similar technology to minimize signal loss, especially for the primary VHF radio.
- Fail-Safe Protection: Guarantees the VHF radio always has priority and remains functional if the splitter loses power.