Note: This splitter includes one 2m (6.5ft) long patch cable to go between the splitter and your VHF radio. You will need an additional appropriate length 50 ohm cable with standard PL259 plugs to go between the splitter and your AIS device. This should be ordered separately based on your required length. We have cables in various lengths available here.
AIS VHF Antenna Splitter for AIS Transponders and Receivers
At last An Antenna Splitter with Gain Not Loss
Many AIS splitters introduce significant signal loss, some say no loss but this unique Vesper Marine splitter is the only one that provides signal gain - improving AIS reception and increasing range. This is because the Vesper Marine splitter has a built-in low noise amplifier. This is especially important to increase the receive range from the increasing number of low power AIS SART and MOB devices.
In addition to the amplification provided by this splitter, when used with your existing antenna you can optimize the range of your AIS transponder because the antenna is also mounted as high as possible.
Designed to work with any AIS receiver or transponder* with unique integration features for the AISWatchMate 850 and WatchMate Vision AIS transponders.
To simplify installation you can share an existing VHF antenna by using this splitter. The unit removes the need for a separate VHF antenna for an AIS receiver or transponder and allows a single antenna to be shared with a VHF radio.
This is an excellent solution when it is difficult to install an additional antenna or you wish to share an existing VHF antenna and maximize your AIS range.
This Vesper Marine splitter is specifically designed for use with both AIS receivers and transponders.
You can use this splitter with an existing antenna installation that is in good operating condition. However, for an optimized AIS and VHF antenna system, choose our AIS antenna designed to be shared with VHF radios.
AIS Sensitivity Gain
The SP160 provides amplification to the AIS signal resulting in much higher AIS sensitivity, improving AIS receive range.
Low power consumption
Very low power consumption designed to save your battery power.
No adapters or special patch cords needed for VHF/AIS. Uses standard PL-259 patch cables (1 x 2m (6.5ft) cable included).
Very compact and easy to install with built-in mounting flanges.
LED status indicators
4 status LED's (power, VHF transmit, AIS transmit, antenna quality).
AM and FM radio connection
Provides AM/FM radio connection. An optional cable with a standard "Motorola plug" is available to make installation easy. Plugs directly into almost all car or marine stereos.
VHF-in-use indicator appears on the screen of the AISWatchMate 850 and WatchMate Vision AIS transponders whenever the VHF radio is being used. This unique feature indicates when AIS traffic is delayed due to the antenna being in-use by the VHF radio and is also an excellent indicator if a stuck-mic condition exists.
Fail-safe VHF priority
VHF radio always has priority and the VHF can always transmit even if the power to the splitter fails.
Antenna quality monitor indicates if there is a problem
The unique antenna quality LED will indicate a problem with the antenna, cable or installation.
12 or 24 Volt supply
Designed to work with either 12 or 24 volt supply.
IPx7 rated. High quality rugged construction made specifically for marine use.
The Vesper Marine SP160 Splitter has higher performance than any other AIS splitter, whether it's used with an AIS receiver or transponder. ItÃ¢€â„¢s also been designed to be used with other manufacturers AIS receivers and transponders making it very versatile*.
One easy to install junction box
This new splitter provides a convenient and intelligent junction box for VHF, AIS and AM/FM break out points. Using the SP160 allows AIS equipment like AIS transponders or AIS receivers to be easily installed with a single coaxial cable run to each device and only one cable to your shared VHF antenna.
Outstanding receive performance
The unique design of the SP160 means it doesn't have the signal loss associated with other AIS splitters ensuring you can achieve full performance from your VHF radio and your Vesper Marine WatchMate or XB-8000 (or other AIS receiver or transponder).
Improves AIS receive range
The SP160 improves AIS receive range by providing amplification to the AIS signal resulting in much higher AIS sensitivity - especially useful for receiving the growing number of 2W Class B AIS transceivers.
What's In The Box
- AIS VHF antenna splitter
- Installation guide
- 2m (6.5') Power cable
- 2m (6.5') PL259 patch cable
|Frequency Range||156MHz to 163MHz|
|Operating temperature||-25Ã‚Â°C to +55Ã‚Â°C (-13Ã‚Â°F to 131Ã‚Â°F)|
|Environmental||Watertight (USCG CFR-46, IPx7)|
|Power Supply||10-32 VDC, <0.8W nominal|
|Overall Size||135mm Long x 107 Wide x 56 Deep (5 5/16Ã¢€Â x 4 1/4Ã¢€Å“ x 2 1/4Ã¢€Â)|
|Maximum VHF power||25W|
|Maximum AIS power||12.5W|
|Compatibility||Fully compatible with all Vesper Marine AIS transponders and receivers. May be used with any other manufacturer's AIS receivers and transponders although some transponders may issue a warning if they attempt to transmit while the VHF is already transmitting.|
|VHF & AIS Connectors||SO-239 (UHF). Requires two appropriate length standard 50 ohm patch cables with PL-259 plugs (1 x 2m (6.5ft) included).|
|AM / FM Connector||BNC, optional 2m (6') cable available BNC to Motorola plug|
|Patch Cable||1 x provided as standard. 2m (6.5ft) long 50 O cable with PL259 connectors.|
|Insertion Loss||VHF RX <1.5dB / VHF TX <1dB / AIS TX <1dB|
|AIS Receive Gain||12dB|
|AIS Sensitivity with Vesper Marine transponders||-119 dBm, 6dB improvement|
Specifications may change due to product improvements.
Downloads for all Vesper products can be found here.