Coaxial aerial conundrum
QThe thin coaxial cable leading from the aerial to my Navman GPS set has been disconnected from the unit and cut in the cabin some two feet from the unit. How can I make permanent connections? A much thicker grade of coaxial cable can be fastened securely to the GPS – but how would I join coaxial cables of different sizes?
Unfortunately, I specialise in inland boats where there is not usually much call for GPS, but in reply to an almost identical question on an online forum, the suggestion was to solder the cable ends together.
Also, have a look here satcure.co.uk/tech/ fplugs.htm because they talk about special thin F-type plugs.
If the connection on the Trackman unit and the aerial are F-type (which I think they are), then you might want to consider running a complete new length of cable: possibly try a good quality 75 ohm TV aerial type cable, but not the cheap sort with a copper-plated steel inner conductor.