Speed log dummy impeller unit
Spare dummy log impeller
Fit this in place of the logs impeller unit if you leave the boat, this will keep the bore free from marine growth.
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AIS Engine 3 upgrade processor
The AIS Engine 1 and 2 can be upgraded to AIS Engine 3 specification by replacing the processor. This is a straightforward procedure where the old device is simply unplugged from its socket and replaced by the new device. AIS Engine 3 relays all AIS messages.
HF Active Antenna
Active HF antenna for HF3/W and HF3/P SSB receiver. Supplied with 7 metres of cable.
Note – if your HF3 receiver has a red couloured label on the rear chassis the power supply for the antenna is already built in. It is activated by the slide switch on the rear.
If your HF3 has a black coloured label you will need the optional antenna power supply here: