Re: [time-nuts] 3.0 GHz Channel 3 Installation in Agilent 53132A Counter

2014-03-19 Thread GandalfG8
Hi Jim Will send direct shortly, if nothing arrives let me know and I'll try again. Regards Nigel GM8PZR In a message dated 19/03/2014 01:13:31 GMT Standard Time, jsrobb...@earthlink.net writes: Thanks everyone for the thoughts. Nigel, I am not seeing the references to pin 9

Re: [time-nuts] 3.0 GHz Channel 3 Installation in Agilent 53132A Counter

2014-03-19 Thread GandalfG8
Hi Jim The PC containing my archives is busy and I can't pull any files off right now, sorry about that, but I've confirmed that the component level service data I have is the same February 2007 version as can be found here.. http://cp.literature.agilent.com/litweb/pdf/5989-6308EN.pdf

Re: [time-nuts] NIST time services

2014-03-19 Thread Didier Juges
I would, but I don't have the time at the moment :) Didier KO4BB On March 19, 2014 12:18:23 AM CDT, Tom Van Baak t...@leapsecond.com wrote: If you can design a system that can handle 6.5 billion requests per day, this opportunity is for you...

[time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A counter

2014-03-19 Thread James Robbins
Many thanks for all the replies. Nigel, thank you for the link. I did have this pdf, but was not reading it correctly. It has been suggested that perhaps the counter main board was set up (modified) for a 12GHz channel 3. That would have required some mods to the actual main board, but I am

Re: [time-nuts] NIST time services

2014-03-19 Thread Jim Lux
On 3/18/14 10:18 PM, Tom Van Baak wrote: If you can design a system that can handle 6.5 billion requests per day, this opportunity is for you... https://www.fbo.gov/spg/DOC/NIST/AcAsD/RFI_InternetTimeServiceComments/listing.html Solicitation Number: RFI_InternetTimeServiceComments For

[time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A counter

2014-03-19 Thread James Robbins
Thanks for everyone's help here. I have done some further sleuthing. I have a second 53132A which has a 3.0GHz Channel 3. So, I switched the new channel 3 board into the old 53132A and it reads properly. Then, I switched the old 3.0GHz Channel 3 board into the new 53132A and it also read

Re: [time-nuts] NIST time services

2014-03-19 Thread Chris Albertson
So they want to in-invent NTP? I think NTP already services way more than 6.5 billion per day. The problem with NTP is while it is nearly optimal and provides the best time accuracy for a given hardware/network setup it is not technically traceable even if the time really is from NIST

Re: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A counter

2014-03-19 Thread Randy D. Hunt
On 3/19/2014 8:26 AM, James Robbins wrote: Thanks for everyone's help here. I have done some further sleuthing. I have a second 53132A which has a 3.0GHz Channel 3. So, I switched the new channel 3 board into the old 53132A and it reads properly. Then, I switched the old 3.0GHz Channel 3

Re: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A counter

2014-03-19 Thread Dave Martindale
No, the suggestion makes perfect sense. A 12 GHz input board likely has an internal prescaler with a division ratio that is 4 times that of a 3 GHz input board, in order to have the main counter running at the same internal frequency. For example, a 3 GHz input might divide by 32 while a 12 GHz

[time-nuts] Fwd: Re: NIST time services

2014-03-19 Thread Jim Lux
Original Message Subject: Re: [time-nuts] NIST time services Date: Wed, 19 Mar 2014 10:21:17 -0700 From: Jim Lux jim...@earthlink.net To: time-nuts@febo.com On 3/19/14 9:50 AM, Chris Albertson wrote: So they want to in-invent NTP? I think NTP already services way more than

[time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A Counter

2014-03-19 Thread James Robbins
I think I may need to clarify my prior posting. Both old and new Channel 3 boards work fine (and read correctly) in my older 53132A counter. Both old and new Channel 3 boards fail to work properly in (and read 4x actual) the newer 53132A counter. So I think the problem is in the newer main

Re: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A Counter

2014-03-19 Thread Brian Inglis
On 2014-03-19 16:00, James Robbins wrote: I think I may need to clarify my prior posting. Both old and new Channel 3 boards work fine (and read correctly) in my older 53132A counter. Both old and new Channel 3 boards fail to work properly in (and read 4x actual) the newer 53132A counter. So

Re: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A Counter

2014-03-19 Thread Brooke Clarke
Hi Jim: I've seen a similar problem when one end of a ribbon cable connector is soldered to the wrong side of a PCB. Maybe you can unsolder a connector and install it on the other side? Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html James

Re: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A Counter

2014-03-19 Thread Tom Knox
Jim the 5 and 12.8GHz modules are the same part and the software/firmware set the upper freq limit. I assume at least the 12.8 GHz option must be unlocked/accessed most likely through the key pad. The 5GHz may be plug and play. Thomas Knox From: jsrobb...@earthlink.net Date: Wed, 19 Mar

[time-nuts] Aircraft ping timing

2014-03-19 Thread iov...@inwind.it
Those who say the missing aircraft should be searched along the two corridors, what measurement are they relying on? I think it is a one-way measurement of time-stamped pings, which implies good synchronization of clocks between a geosynchronous satellite and a moving aircraft. Antonio I8IOV

Re: [time-nuts] Aircraft ping timing

2014-03-19 Thread Bill Hawkins
They only got one ping from INMARSAT at 64E above the Indian Ocean. There was no other ping to triangulate the position. One ping projects a circle on the Earth. The maximum flying range of the plane determined the ends of the NE and SE arcs of that circle. The news only gets stranger as time

Re: [time-nuts] Aircraft ping timing

2014-03-19 Thread iov...@inwind.it
My question was on what would be the expected accuracy of the circle's radius. Antonio I8IOV Messaggio originale Da: b...@iaxs.net Data: 20/03/2014 1.21 They only got one ping from INMARSAT at 64E above the Indian Ocean. There was no other ping to triangulate the position. One ping

Re: [time-nuts] Aircraft ping timing

2014-03-19 Thread J. Forster
It depends on how accurately the bird can measure the round-trip time: 1 us = ca 500' 10 us = ca 1 mile 100us = ca 10 miles 1 ms = ca 100 miles The arcs are loci of constant round trip time, projected on the globe. -John === My question was on what would be the expected

Re: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A Counter

2014-03-19 Thread John Allen
FYI: Here is the link to the 53132 CLIP. http://www.home.agilent.com/agilent/redirector.jspx?action=refcname=AGILENT _EDITORIALckey=1119025lc=engcc=USnfr=-33788.536880944.00 It wasn't there last I checked. John K1AE ___ time-nuts mailing list --

Re: [time-nuts] Aircraft ping timing

2014-03-19 Thread iov...@inwind.it
Messaggio originale Da: j...@quikus.com Data: 20/03/2014 1.47 It depends on how accurately the bird can measure the round-trip time: 1 us = ca 500' 10 us = ca 1 mile 100us = ca 10 miles 1 ms = ca 100 miles The arcs are loci of constant round trip time, projected on the globe. This is

Re: [time-nuts] Aircraft ping timing

2014-03-19 Thread Brooke Clarke
Hi Antonio: It's my understanding that the satellite sends a ping to each aircraft in it's low gain antenna pattern once every hour by aircraft ID number. The aircraft replies with a very short data packet that's time stamped (but without any location or other info other than the ID). The

Re: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132ACounter

2014-03-19 Thread Tom Van Baak
http://cp.literature.agilent.com/litweb/pdf/5989-6308EN.pdf See also: http://www.febo.com/pipermail/time-nuts/2009-February/036507.html http://www.febo.com/pipermail/time-nuts/2014-February/082545.html FYI: Here is the link to the 53132 CLIP.

Re: [time-nuts] Aircraft ping timing

2014-03-19 Thread Jim Lux
On 3/19/14 5:21 PM, Bill Hawkins wrote: They only got one ping from INMARSAT at 64E above the Indian Ocean. There was no other ping to triangulate the position. One ping projects a circle on the Earth. The maximum flying range of the plane determined the ends of the NE and SE arcs of that

Re: [time-nuts] Aircraft ping timing

2014-03-19 Thread nuts
A lot of these satellites have footprints for each antenna. I don't know if the footprints are narrow enough to track a plane. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts