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Garmin GPSMAP 178C (Colour) with external antenna and dual frequency transducer : Amazon.co.uk: Automotive
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The Garmin 178C | Our an independent review of the Garmin 178C marine GPS chartplotter and more on marine electronics.
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ConPus External GPS Antenna BNC Male for Garmin StreetPilot III, GPS V III+ Sounder GPSMap 178C 188 276C 298c 398c 498c… – BLINKEE.COM
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