On 04/11/07 08:47, Udo van den Heuvel wrote: > I have a Garmin GPS-18 LVC which has no clear view of the southern sky.
Mine sits next to a window, it doesn't have a full view either but for timing purposes the PPS signal is still good while it's only tracking 2 satellites... > I want to improve reception by putting my GPS on the flat roof. > For this change I need to make the cabling 10 meters longer. > Can I use CAT5 UTP? STP may be better... > If so: > Cat5 has 4 wire pairs. The GPS needs 5 conductors. > So what would be the best setup for minimal interference and optimal > performance? Can the wire pairs be of any use? Or doesn't it really matter? Wire it like this: Pair 1: Red (+5V) + Black (GND) [the thicker black one] Pair 2: White (TX) + Black (GND) Pair 3: Green (RX) + Black (GND) Pair 4: Yellow (PPS) + Black (GND) -- Simon Arlott
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