On 2012-03-01, David J Taylor <david-tay...@blueyonder.co.uk.invalid> wrote: >> Teh standard is the Gamin GPS 18x (make sure to get a newer unit or you >> will have to upload a patch to it to fix the problem that it sometimes >> sends teh nmea sentences too late). The Sure I am getting worried >> about-- I thin kthe antenna they send with it is defective sometimes. > > Bill, > > Yours is the only Sure I have heard about with (perhaps) an antenna
Another user reported similar problems. I have two of them. The other one seems to work fine. I have written to Sure and gotten no response yet. > problem. Whilst bearing in mind that this is a consumer-level antenna, > have you asked for a replacement if your unit is less than a year old? > > As you say, for some considerable time Garmin was sending out GPS 18x LVC > units with faulty firmware. Version 3.70 is OK, though. Yes, I heard that they had fixed things. But some suppliers might have old stock. > > Whilst the Oncore UT+ which Chris mentions may have better ultimate > performance, I don't think you will see the difference in an NTP > application on the great majority of PCs. It doesn't come with an Agreed. Persuading a PC to respond to the interrupt in under 1us would be pretty good work (mine are more like 2-20us response time) > antenna, tracks only 8 channels (at least that's one I found on eBay), and > also requires a connection lead to be assembled. Looks nice, though! > > Cheers, > David > _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
