Re: [time-nuts] time-nuts Digest, Vol 187, Issue 9 Fake new LPRO 101 Rb's on Ebay

2020-02-07 Thread Andre
Its possible. Incidentally some of the "old" units have issues but can be fixed as others have found. Still on the hunt for a Rb lamp with or without the casing, as I can probably make use of it even if low voltage as a magnetic sensor or other high tech projects even if no good for a clock. It

[time-nuts] Fluke 164H counter question - Thanks!!!

2020-02-07 Thread Tom Knox
Hi Time-Nut; I am sure someone has asked before, and I know the question will be asked in the future. Does anyone know how to enter the calibration menu on a Fluke 164H Multi-Function Counter? Does it require a code? I know the Scopemeters from this generation 9/99/105 series use a external 12 v

[time-nuts] Single PS possibility

2020-02-07 Thread Perry Sandeen via time-nuts
Learned gentlemen, While the idea of a single supply for all devices is attractive, one faces the risk of having everything going down with a single failure. Perhaps using multiple boost-buck SRPS's from a large battery supply might mitigate that risk. The vendor *Bang Good* seems to have a good

[time-nuts] eLORAN to turn on next week for a test

2020-02-07 Thread paul swed
Hello fellow time-nuts. Just found out eLORAN will be on next week or so. Bringing Wildwood back on air the week of February 17th and then again the week of March 16th for a demonstration of UTC time synchronization. We’ll be broadcasting as 8970M and 8970X from Wildwood during those times. So if y

Re: [time-nuts] Experiments in NTP performance (Watson Ladd)

2020-02-07 Thread Chris Quayle
On 02/07/20 17:00, time-nuts-requ...@lists.febo.com wrote: Experiments in NTP performance (Watson Ladd) Hi, I may have something to contribute to this, Built an experimental system last year. Two or three surplus spares or repair grade and refurbished time servers on a separate subnet, interro

Re: [time-nuts] eLORAN to turn on next week for a test

2020-02-07 Thread Scott McGrath
I hope we finally light up eLoran and soon not only is it needed for time transfer. As a pilot there have been way too many GPS outages and the ADS-B peer to peer system is totally dependent upon precision positioning signals from GPS. It’s unsettling to be doing a GPS approach only to be hal

Re: [time-nuts] eLORAN to turn on next week for a test

2020-02-07 Thread paul swed
Well the government has funded 2 tests. So they are looking. But we will end up with what makes someone the most money. The alternative seems to be the Iridium satellite constellation. That way we have 2 different satellite based solutions. H I don't see any problem with that at all. Korea is i

Re: [time-nuts] Using a common power supply among few time standards

2020-02-07 Thread Taka Kamiya via time-nuts
I recall S-100 scheme had an issue of per-board regulator failing short and dumping 8V into bus killing rest of the system I am thinking of making use of 28V (aircraft power supply?) regulated power supply, and have local linear regulator to created needed voltages.  One concern is, should I