Independent trials of the Pocket Mariner AIS Dual channel receiver.

With the help of a ShipPlotter user in Finland we have been able to run side by side tests of our Pocket Mariner Dual Channel AIS receiver with a mainstream commercial brand AIS receiver costing over 3 times the price. We are very pleased with the results, with the Pocket Mariner Dual Channel AIS receiver achieving almost exactly the same coverage/range/data rate of the well known commercial brand. Here are some stats comparing our Pocket Mariner AIS receiver on port 7018 (blue) and the other on port 5378 (red ) and screenshots at the same time of the coverage from the same aerial in Helsinki.

Rate of data received (bits/s)

Screen Shot 2015-06-13 at 10.58.10

We also found that the coverage/range for both the commercial AIS receiver and ours was significantly improved using a relatively in-expensive AIS frequency (162MHz) tuned filter and pre-amp on the aerial feed. We used and would recommend the VHF Pre-amp from Spectrum Communications (formerly known as the Garex pre-amp). They start at around £15 for the pcb built one and around £50 for a boxed version. The ship ranges in the screenshots below is approximately 150km (100Miles).  The tropospheric conditions were good.

7018 Pocket Mariner Dual Channel AIS Receiver coverage snapshot


Screen Shot 2015-06-13 at 10.45.42


5378 Commercial AIS Receiver coverage snapshot

Screen Shot 2015-06-13 at 10.45.53

N.B. The buoys at the top of the screen (North) are over 350km away and most likely Synthetic Aids To Navigation being broadcast by a shore based station nearer our aerial.

If you are interested in having a Pocket Mariner Dual Channel AIS receiver please get in touch with us at .