[time-nuts] nuts about position

2018-05-31 Thread Mark Sims
I did another test to see if the M8T offered any positioning advantage over the old (and cheap) LEA-4T and LEA-5T devices. I drove the M8T and LEA-4T with the same antenna, collected data for 12 hours, beamed the RINEX files to Canada. The results matched to within 3mm... so, again, the

[time-nuts] QUALCOMM 1152 Synthesizer Boards

2018-05-31 Thread Richard Solomon
I have two of these that I will never use. I will sell both for $50 and include some paperwork on them I collected. Shipping in the United States will be $19 via Priority Mail. If interested, e-mail me off-line. 73, Dick, W1KSZ Sent from Outlook

Re: [time-nuts] HP 5372A TIA Question

2018-05-31 Thread Ed Palmer
On 5/31/2018 10:00 AM, "Poul-Henning Kamp" wrote: PS: I do not recall it being mentioned, but the 1 MOhm input pods are horribly unstable compared to the 50 Ohm input pods, which are basically just a stripline and a BNC connector. One thing to note about all the 5372A pods: They should

Re: [time-nuts] HP 5370B using manual start-stop

2018-05-31 Thread Bob kb8tq
Hi We ran 5335’s in “long gate” mode via the gate open / gate close commands. It worked, but you had to compensate for rollovers. My guess is that you would run into similar stuff on the 5370A. Simple answer is to try it and see … That’s what we did on the 5335 and then worked through all the

[time-nuts] Ann other Microwave Journal Paper

2018-05-31 Thread ew via time-nuts
Ann other Microwave Journal Paper an invited paper but by Morion Inc. Precise Frequency Sources Meeting the 5G Holdover Time Interval Error Requirement Bert Kehren ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] HP 5370 A to B conversion?

2018-05-31 Thread Glen Hoag
HP once offered a field conversion kit. One of my 5370Bs began life as an A. I believe that it was mostly in the firmware. John Seamons, j...@jks.com, developed a replacement processor board that uses a BeagleBone Black or BeagleBone Green to emulate the 6800 processor of the later 5370s.

Re: [time-nuts] HP 5370B using manual start-stop

2018-05-31 Thread Magnus Danielson
Hi Perry, You should get the upgraded CPU board, since the 6800 of the 5370A/B will be a limit. It will allow you to get up to those speeds without too much pain. As added benefit you also get an Ethernet connection to it. Cheers, Magnus On 05/31/2018 05:19 AM, Perry Sandeen via time-nuts