Scythe, NoWire will not be able to supply you with cabling for High Gain antennas. The correct place to get such cable is Miro (www.miro.co.za). SImply tell them what length of cable you want and they make it up for you. If you already have cable, you could save some money by taking this in and getting it shortened. They will need to add a new connector to the end so you are probably looking at about R100 to get this done. Miro have outlets in Jhb, Cape Town and Durban.
Thanks for the reply's! Got a shorter cable, went from a 15M cable to a 6M cable and signal went up from around 4% to 18% and quality of signal is on full! Shows what a crap job the people who installed it did cos they didn't even need to make the cable so long!