Navigation > AIS > VHF Antenna Splitter
EM-TRAK SR300
EM-TRAK SR300 is a zero-loss active VHF/AIS antenna splitter by EM-TRAK, allowing a single marine VHF antenna to be shared safely between a VHF DSC radio, AIS transceiver, and AM/FM stereo.
Product
EM-TRAK SR300
EM-TRAK SR300 is a zero-loss active VHF/AIS antenna splitter by EM-TRAK, allowing a single marine VHF antenna to be shared safely between a VHF DSC radio, AIS transceiver, and AM/FM stereo.
The EM-TRAK SR300 by EM-TRAK eliminates the expense and mast clutter of installing a second dedicated AIS antenna. Using patented zero-loss pre-amplification and fail-safe VHF priority switching, it ensures full transmit/receive range for both your VHF radiotelephone and Class B AIS transceiver, even if power is lost.
Dual-Channel Parallel AIS Processing
Monitors 161.975 MHz (AIS 1) and 162.025 MHz (AIS 2) simultaneously fo…
Zero Insertion Loss & VHF Priority
Amplifies AIS and VHF signals while guaranteeing fail-safe VHF radio p…
Plug-and-Play NMEA 2000 & NMEA 0183
Integrates effortlessly with all major chartplotters, radars, ECDIS, a…
Built-In Antenna Diagnostics
LED status indicators continuously monitor VHF antenna health and powe…
Rugged Waterproof Marine Housing
Engineered to withstand vibration, extreme temperatures, and wet bilge…
Key Features
Key Features & Operational Capabilities
Engineered by EM-TRAK for professional maritime reliability, compliance, and seamless shipboard integration.
- Dual-Channel Parallel AIS Processing
- Zero Insertion Loss & VHF Priority
- Plug-and-Play NMEA 2000 & NMEA 0183
- Built-In Antenna Diagnostics
- Rugged Waterproof Marine Housing
Where It Is Used
Maritime Applications & Vessel Types
Discover how the EM-TRAK SR300 supports critical operations across commercial fleets, workboats, and leisure vessels.
Technical Specifications
At a Glance
AIS Class / Function
Active VHF/AIS Antenna Splitter
Frequency Range
156.025 – 162.025 MHz (AIS CH87B / CH88B)
Interfaces
NMEA 2000, NMEA 0183, USB
GNSS Receiver
N/A (RF Splitter)
Power Supply
12 V / 24 V DC (9.6 – 31.2 V DC)
Ingress Protection
IP67 / IPX7 Waterproof
Standards
IEC 62287-1 / IEC 62287-2 / ITU-R M.1371
Need help finding the right solution?
Our team of marine electronics experts is here to assist you.