avesmarine.com                                                UK Sales and Export                                        An Onwa UK and EU authorised sales company   



                  Welcome to AVES Marine     

If you are thinking of treating yourself to a new piece of marine electronics this is a place to look. Onwa produce first rate equipment at a price that makes sophisticated marine electronics affordable. Our best selling plotters are the AIS transponder range - you won't find a comparable product for anything approaching the price that these models sell for.

AVES Marine has been selling Onwa equipment since April 2014. We are one of a select few officially recognised re-sellers of Onwa products in Europe. You can find AVES Marine listed on Onwa’s web site as an official seller of their products (http://onwamarine.com/contact-us/) so you can depend upon AVES Marine to sell you a GENUINE Onwa product that is fully supported by the manufacturer. All Onwa products sold by AVES Marine have a parts and labour warranty. For new this is 24 months (new from 12th December 2018) and for used and ex-demonstration items 6 to 12 months depending upon the item.


New models just released and possibly the best value to date from Onwa:

There are two brand new models recently released. 

New models

KP39       7 inch multi function GPS plotter 

KP39A    Same as KP39 but with the addition of a Class B AIS transceiver.

In appearance and performance they are identical apart from the KP39A has a built in AIS transceiver.

The new models in detail:

The all new KP39A 7” widescreen (16x9) chart plotter with Class B AIS transceiver built in. 



The all new KP39A Chart Plotter with Class B AIS Transponder


·        Built in Class B AIS transceiver

·        7” widescreen (16x9) sunlight viewable screen

·        Sun cover

·        New faster processor

·        Water protect to IPX5 (IPX5 = water projected by a 6.3mm nozzle against enclosure from any direction shall have no                 harmful effects).

·        Swivel and tilt mounting bracket

·        GPS aerial with 3 metres of cable to SMA connector (KA-07 'mushroom' type external GPS with 10 metres of               cable can be supplied as an upgrade (£22.00) + an adaptor will be needed (£2.76 or £4.75)

·        Can use C-Map Max and Onwa’s own K-chart versions 2 and 3

·        K-charts free to buyers of Onwa plotters – most areas of the world available as version 2, version 3 is in                           development.

·        All plotters are supplied with your choice of any K-chart2 area of the world

·        24 month warranty from Onwa Marine Ltd and implemented in the UK by AVES Marine

·        UK based technical support from Aves Marine.

KP39A £475.00 

with free post to UK mainland* see exclusions below

KP39 £320.00                           


KP39A rear connections

KP39 GPS multifunction chart plotter - same as KP39A but without the AIS transceiver.


Both models come with a new type magnetic GPS aerial with 3 metre cable. Aerial is designed to mount on the top of the plotter case and is held in place by the magnetic base of the aerial. Can be mounted anywhere else within 3 metres. Note...you need to mount the magnetic aerial at least half a metre from a steering compass to avoid interaction.

10 metre version KA-07 can be supplied as an upgrade option.

£22.00 (only if supplied as part of a  KP39 or 39A sale)

 + you will need either:

BNC to SMA adaptor £2.75


BNC to SMA 50cm pigtail lead £4,75


SMA to BNC converter fitted to GPS cable if alternate GPS connection required.


Comes with free Onwa K-chart for UK and Ireland  and 24 months U.K warranty. 

* free freight exclusions

We would like to offer completely free freight with every sale to anywhere but, sadly, this is simply not possible. Generally, if you live in mainland UK in a populated area freight fees are manageable, however, to Highlands and Islands, Isle of Wight and what freight companies call remote areas, the cost can be quite high. However, if you live in one of these areas we will chip in with a  £10.00 discount on the plotter price in lieu of the free post. 

Ramsgate Royal Harbour, Kent, UK.


Customers vessel with Onwa radar installed (now upgraded to 120cm open array) in Queenborough Harbour, Kent