USB GPS & AIS Dongle


These products simply plug into the USB port of your computer, giving a completely mobile solution to your navigation needs, the Bluetooth GPS requires no leads at all. The AIS just requires connection to a VHF antenna and the GPS gives excellent accuracy to fix your positon and allow all the route planning to take place in real time

£48.95 inclusive of postage

Compatible with Windows XP, Vista, 7 and 8 and 10

With non-slip on the bottom and the special compact design, the GlobalSat BU-353 sirf4 Water-Proof USB GPS Receiver is completely self-contained and waterproof. It incorporating the latest SiRF Star IV GPS chipset and an active patch antenna so you receive a high degree of GPS accuracy.

Baud rate 4800bps

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axis receiver

Quark AIS dual band receiver. Ideal for use with Chart Plotter and a laptop 

£67.75 post free

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£67.75 post free (currently out of stock)


· Two AIS receivers monitoring both AIS channels(161.975 MHz and 162.025 MHz) at the same time and decoding both channels simultaneously. Plugs directly into a USB port
· Sensitivity down to -107 dBm@30% PER
· Up to 55 nautical miles receiving range
· USB 2.0 powered (<26mA@ 5.0V)
· 38400 bps baud serial over USB
· Message output in industry NMEA-0183 format
· Supports interworking with NMEA-0183 GPS receiver
· SMA connector for 50 Ohm VHF antenna
· SMA to BNC coaxial adaptor included
· Compatible with Windows and MAC systems
· Plug & play connectivity with chart plotters and PCs

£55.60 post free - scroll down to purchase

VHF or AIS antennae, suitable for the AIS unit above

1  clasp mount with 5m Cable

1 x VHF Antenna


• VHF radios
• Marine VHF and AIS receivers
Clasp mount: Can be connected to puushpit,  railing or rods maximum of 30mm diameter.

• RG5 8U cable
• 5 metre/15′ cable with BNC (male) connector
• Bandwidth: 6Mhz
• VSWR: <1.5:1
• Gain: 2.15 dBi
• Impedance: 50 Ω
• Frequency Range: 160 – 164 Mhz
• Marine band
• 445 mm/17.5” Antenna with partially sprung whip aerial

Clasp mount connects to vertical to horizontal railings or bars with a maximum of 30mm diameter. 180 degree positioning.
Includes a 5m  RG5 8U Co-axial cable which connects using a male BNC connector to the VHF/AIS receiver of your choice. The whip is partially sprung to provide increased flexibility and durability and is coated to reduce corrosion. Ideal for outdoor applications needing a sturdy, movable antenna. Suitable for boats and other vehicles.

The QK-AS02 is an entry level two component mobile VHF Antenna.

transform your laptop

 £99.95 post free

Already have a laptop? then why not transform it into a fully functional navigation system for less than £100. Everything arrives in a box, post free.

Belfield Chart Plotter software

1000 UK, Ireland and Channel charts

Belfield Tide Plotter software

USB GPS unit

8gb USB memory stick containing all the software



All prices listed below include postage and packing



Prices shown below include carriage 

Quantity Item Unit Price
Chart Plotter 2021, for Windows 8 &10 (download) £69.95
2+ £59.95 each
5+ £49.95 each
10+ £39.95 each
USB GPS BU-353 inc. p&p £48.95
Tide Plotter UK, Ireland and Channel, download, data to the end of 2024 £21.99
2+ £19.99 each
5+ £15.99 each
10+ £11.99 each
Tide Plotter UK, Ireland and Channel and Europe, download, data to the end of 2022 £14.99
2+ £21.99 each
5+ £18.99 each
10+ £12.99 each
15+ £10.99 each