I am currently in the process of remodeling my house and a dedicated outdoor/roof mounted GPS antenna would be possible to mount without excessive cost.
I probably would not see a huge difference for timing purposes, but what would your choice of an outdoor GPS antenna/receiver be? I am planning to put the NTP server (small Raspberry Pi, nothing fancy) into a rack maybe 10 metres of cable length away from the roof. Or would you move the NTP host itself to the attic and run Ethernet up? I suppose something like the Garmin GPS 17x (mast mount GPS with serial output and PPS, intended for the marine market) would work fine, also be robust enough and cheap on the used market. Would mounting just an antenna (active or passive) also make sense, or would cable loss be too high? What would *your* roof top setup be? Cost is of course an important consideration, on the other hand, 100 or 200 Euros for the GPS, antenna and mounting hardware is probably OK. I would prefer to do cabling jobs now, while I am in the process of doing a lot of "dirty" things. Or would you not bother at all, and just put some puck into the window (which probably works too)? TIA /ralph _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions