The antenna will be mounted outside with a reasonably clear view to the horizon from east-south-west. But there are times when there could be a lot of RF in the area - I design and build high power VHF and UHF PAs, amongst other things, and one of the attractions of the quality GPS antennas is the fact that they have a built in filter.
But I might try one of the cheap patch antennas as a start with a view to upgrading at some point in the future. regards Grant Nigel Wrote :- > > ----------------- > Hi Grant > > I think this really does depend on where you are, satellites in view etc, > and what level of performance you're actually looking for. > > I have a few different timing antennas but have found these don't give very > reliable reception indoors. > Until I can get these mounted outdoors I have been having good results on > various receivers using some small Trimble magnetic patch antennas, > specified > 26dB gain, attached to a steel plate and sitting on a shelf inside a one > level > timber framed house on the west coast of Scotland. > These came via a buy it now from the usual place at $21 for 10 about a year > ago. > > Driving a pair of Thunderbolts with these and comparing them with an HP > 53132A counter, either one as reference and the other as input, once locked > I see > variations of just a few places around zero in the 10th decimal place. > I have used this test on any two units selected from four with consistent > results. > > Not a very scientific test perhaps, and nothing else measured, but as > regards frequency at least I don't think they're suffering too much from > their > "lesser" antennas:-) > > regards > > Nigel > GM8PZR > > ------------------------------ _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
