AIS / VHF / FM antenna splitter

$249.00
USD
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AIS VHF Antenna Splitter for Class B AIS Transponders

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.

Note: The 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 transponder or receiver. This should be ordered separately based on the required length. See the related products list for popular options.

* See the specifications page for info about using the Vesper Marine splitter with other manufacturers AIS transponders.

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.

Simple connections

No adapters or special patch cords needed for VHF/AIS. Uses standard PL-259 patch cables (1 x 2m (6.5ft) cable included).

Easy installation

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

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.

Waterproof

IPx7 rated. High quality rugged construction made specifically for marine use.

High performance

The Vesper Marine SP160 Splitter has higher performance than any other AIS splitter, whether it's used with an AIS receiver or transponder. It’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.

* See the specifications page for info about using the Vesper Marine splitter with other manufacturers AIS transponders.

What's In The Box

  • AIS VHF antenna splitter
  • Installation guide
  • 2m (6.5') Power cable
  • 2m (6.5') PL259 patch cable
Frequency Range156MHz to 163MHz
Operating temperature-25°C to +55°C (-13°F to 131°F)
EnvironmentalWatertight (USCG CFR-46, IPx7)
Power Supply10-32 VDC, <0.8W nominal
Overall Size135mm Long x 107 Wide x 56 Deep (5 5/16” x 4 1/4“ x 2 1/4”)
(includes connectors)
Maximum VHF power25W
Maximum AIS power12.5W
CompatibilityFully 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 ConnectorsSO-239 (UHF). Requires two appropriate length standard 50 ohm patch cables with PL-259 plugs (1 x 2m (6.5ft) included).
AM / FM ConnectorBNC, optional 2m (6') cable available BNC to Motorola plug
Patch Cable1 x provided as standard. 2m (6.5ft) long 50 Ω cable with PL259 connectors.
Insertion LossVHF RX <1.5dB / VHF TX <1dB / AIS TX <1dB
AIS Receive Gain12dB
AIS Sensitivity with Vesper Marine transponders-119 dBm, 6dB improvement

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Specifications may change due to product improvements.