Re: [time-nuts] What are these towers?

2011-05-26 Thread Oz-in-DFW
Looks like it's an AM broadcast directional array; http://wireless2.fcc.gov/UlsApp/AsrSearch/asrRegistration.jsp?regKey=603263 On 5/20/2011 4:54 PM, Jason Rabel wrote: I was just browsing around on Google Earth and came across this cluster of transmission towers... Anyone care to take a guess

[time-nuts] ZAPD-3DB-1675-3

2011-05-26 Thread EWKehren
I am considering using the ZAPD-3DB for GPS distribution. Any information available before I do something stupid? Thanks Bert Kehren ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] ZAPD-3DB-1675-3

2011-05-26 Thread Tijd Dingen
Is that the ZAPD-3DB-1675-3 or ZAPD-3DB-1575-3? From: ewkeh...@aol.com ewkeh...@aol.com To: time-nuts@febo.com Sent: Thursday, May 26, 2011 4:45 PM Subject: [time-nuts] ZAPD-3DB-1675-3 I am considering using the ZAPD-3DB for GPS distribution. Any information 

Re: [time-nuts] ZAPD-3DB-1675-3

2011-05-26 Thread Dan Rae
On 5/26/2011 7:45 AM, ewkeh...@aol.com wrote: I am considering using the ZAPD-3DB for GPS distribution. Any information available before I do something stupid? Thanks Bert Kehren It's hard to say Bert, since MCL do not list anything under that number. I have used one of the ZAPD series

[time-nuts] Correction it is a ZAPD-3DB-1575-3

2011-05-26 Thread EWKehren
Getting my glasses out it is a 1575-3 Thanks for the correction. Bert Kehren ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] IEEE Spectrum Magazine interviews one of our own...

2011-05-26 Thread ehydra
That is the solution: http://xkcd.com/162/ - Henry -- ehydra.dyndns.info Tom Van Baak schrieb: Hi Christopher, Thanks for those interesting links. Note PHK's original ACM article is: http://queue.acm.org/detail.cfm?id=1967009 The recent IEEE mention is:

[time-nuts] Voltage standards

2011-05-26 Thread Will Matney
Hello all, I was reading some old posts about voltage standards from Dr. Kirby, and some others, and one that was mentioned was the older Fluke standards. I did some research on this, going back to the Fluke 730A transfer standard, which I have one of, and found out what the voltage reference and

Re: [time-nuts] Voltage standards

2011-05-26 Thread WB6BNQ
Hello Will, I think you meant to post this on the Volt-Nuts list ? The reference parts used in the Fluke 731/732 are not off the shelf parts, they are selected. While they are referred to as transfer devices, if working correctly, they exceeded their specs versus time on the 10 volt port. I

Re: [time-nuts] Voltage standards

2011-05-26 Thread Will Matney
Bill, Yes, Fluke did cherry pick on what they bought, or paid to have Motorola to do it. HP does the same when purchasing voltage references, but they both do burn them in themselves after they receive them. The duds are used in less tolerant meters, etc. That is what Fluke wrote about doing in

Re: [time-nuts] Voltage standards

2011-05-26 Thread WB6BNQ
Will, I beg to differ with you on the military statement. The Navy's Primary LAB received 100 of the 731's that specifically were not hand picked, as you suggest. Out of that 100 a number of them were used for a vast array of testing including destructive testing. A few units had problems

Re: [time-nuts] Voltage standards

2011-05-26 Thread Will Matney
Bill, What I was getting at, on the military equipment, was that generally this equipment has more testing done on it than for the normal industrial consumer. I would assume that Fluke was working with the military here to make the equipment pass the rigorous tests of the military, and as you