[time-nuts] Cannot Command RFTGm-II-Rb / RFTGm-II-XO

The RFTG-m units don't speak SCPI. They have an undocumented binary control language. I reversed engineered the protocol and the latest version of Lady Heather can talk to them. The v5.0 release of Heather does not support these. If you run something linuxy or can compile the v5.0

Re: [time-nuts] Cannot Command RFTGm-II-Rb / RFTGm-II-XO

Hi If you go back a ways in the archives, there is a *lot* of information about how to run these beasts. There also are links to the software and command sets for the devices. Bob > On Dec 17, 2017, at 5:01 PM, Patrick Murphy wrote: > > I have recently acquired a used

[time-nuts] Cannot Command RFTGm-II-Rb / RFTGm-II-XO

I have recently acquired a used Lucent RFTGm-II-Rb and XO. The set came assembled with cables and frame, so I am pretty sure everything is hooked together correctly. I have powered both units, and after a few hours I have the green "Online" light lit on the REF-0 (Rb) and the yellow "Standby"

Re: [time-nuts] ergodicity vs 1/f

Hi On 12/18/2017 01:03 AM, Bob kb8tq wrote: You then hit the very basic fact that a “standard noise process” does not cover what real oscillators or amplifiers do in the field. They have a *lot* of “noise like” issues that impact their performance. Simply coming up with a model for this or

Re: [time-nuts] ergodicity vs 1/f

Hi > On Dec 17, 2017, at 6:50 PM, Magnus Danielson > wrote: > > Hi, > > On 12/17/2017 03:09 PM, Mattia Rizzi wrote: >>> you demand ergodicity, you cannot have 1/f. You can have only one or the >> other. Not both. And if you choose ergodicity, you will not

Re: [time-nuts] ergodicity vs 1/f

Hi, On 12/17/2017 03:09 PM, Mattia Rizzi wrote: you demand ergodicity, you cannot have 1/f. You can have only one or the other. Not both. And if you choose ergodicity, you will not faithfully model a clock. I am talking about the issues of flicker noise processes for an experimentalist. I

Re: [time-nuts] Oscilloquartz 8600-3 Disassembly pictures...

As comment mmdd is actually a windows behavior. If files are named in that manner they line up in the directory in order. 20171216 8603 pix 1-20. Minor but may be helpful. Regards Paul WB8TSL On Sun, Dec 17, 2017 at 8:55 AM, Attila Kinali wrote: > On Sat, 16 Dec 2017

Re: [time-nuts] ergodicity vs 1/f (was: Allan variance by sine-wave fitting)

Hi, Finally I have time to answer it properly. Let's do a quick recap. Topic is flicker noise, statistics theory vs experimental hypothesis. I am aware that flicker noise, in stochastic theory, it's not ergodic nor stationary. Mattia#1: (If you striclty apply the stochastic theory) you are not

Re: [time-nuts] Oscilloquartz 8600-3 Disassembly pictures...

On Sat, 16 Dec 2017 15:14:25 -0800 "Tom Van Baak" wrote: > Ed Palmer text and photos: > http://leapsecond.com/museum/osa8601/ > http://leapsecond.com/museum/osa8601/view.htm The 7.04.82 in the 11th picture is likely to be a date code. But it's in European notation, meaning