Richard Laager via devel writes: > Upon further investigation, there is a concern about the GPS antenna > placement.
What concern(s)? > Does anyone have recommendations for GPS antenna RF-to-fiber converters > or other ways to have the GPS antenna a long way (in a building) from > the GPS receiver? The setup you've described previously should already downconvert and amplify the GPS to something that can be sent through long cheap coax runs (you need to check the exact part numbers since these came in a variety of flavors). This signal can be re-amplified with standard inline LNA you'd use for video feeds. I don't think an "inside the building" run will exceed what you can do with that kind of setup (these kits are typically speced for 300…500m w/o extra amplification). LNA inline amplifiers for unadulterated GPS also exist so you can extend your cable runs w/o converters (that generally requires better coax than you'd be able to use for the downconverted signal). RF downconverted signals are also easy to split via video distribution amps, but of course require matching receivers. If the concern is rather about lightning protection and grounding, then fiber is probably the easier solution, but will be more expensive up-front. If you search for "GPS over fiber" you'll get a good overview of the market. Which kit is most appropriate for your situation depends on a lot of factors. Last but not least, you could get an industrial PC with SFP slot directly on the roof and directly send out NTP from there over fiber. If you want to go all out, make that a WhiteRabbit link. Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ Waldorf MIDI Implementation & additional documentation: http://Synth.Stromeko.net/Downloads.html#WaldorfDocs _______________________________________________ devel mailing list devel@ntpsec.org http://lists.ntpsec.org/mailman/listinfo/devel