[time-nuts] Lady Heather 5 for Linux

Walter, I emailed you the v5.0 code to try a couple of days ago... In order to accommodate all the different distros and processors, Linux users have to compile from source. It's very easy to do. Mark ___ time-nuts mailing list --

[time-nuts] RF cables and connectors

List, I recently bout a couple of USB male to USB male cables from Newegg. About two weeks later I received a catalog from: Brake Manufacturing LLC. They make inter-connecting cables for almost any type of connector with almost any type of co-ax as well as selling almost any RF connector one

Re: [time-nuts] HP53131A RS232 question

Hi It’s quite a bit better than that if you speed up the i/o (higher baud rate etc) Bob > On Dec 3, 2016, at 3:05 PM, Scott Stobbe wrote: > > The 53131A is approximately 0.9 Sa/S with a 1 Sec Gate time. With 0.1 s > gate time things get really ugly... His issue is

Re: [time-nuts] HP53131A RS232 question

The 53131A is approximately 0.9 Sa/S with a 1 Sec Gate time. With 0.1 s gate time things get really ugly... His issue is not gate time his setup works with print turned off. On Sat, Dec 3, 2016 at 2:42 PM, Bob Camp wrote: > Hi > > Ok, it’s 0.9992 samples per second … I guess

Re: [time-nuts] HP53131A RS232 question

Hi There may be some deep dark setting in there that would require a pacing process. If it’s there, I’ve never ever run into it. I’ve been pulling data out of 53131’s and 53132’s for as long as they have been around. Not all of it has been by serial, but some of it has. I’ve likely used every

Re: [time-nuts] HP53131A RS232 question

Hi Ok, it’s 0.9992 samples per second … I guess that is so close to 5.0 seconds and so far from 1. seconds that it explains the issue Bob > On Dec 3, 2016, at 2:01 PM, Scott Stobbe wrote: > > Well, that's only true if your counter has

Re: [time-nuts] Best Chance GPS module

Hi Lewis, Here is a sample data-point related to processor load, on the RPI 2. Stepping from Idle to full load on 4 cores resulted in a temp rise near the XO of approximately 14 degC, and correspondingly the XO shifted 3.6 PPM. On Sat, Dec 3, 2016 at 10:29 AM, MLewis

[time-nuts] HP53131A RS232 question

Scott, Tried reversing connections and the count goes from 4ms to 900+ms which is correct. update goes from about 3 seconds to about 5 seconds with them switched. So the connections were correct with the 4ms reading. Found out that the RS232 is talk only so it would not need any commands or

Re: [time-nuts] TrueTime NTS-100: Firmware?

Bruce - You may need to swap EPROMs (July 2006 thread) http://lists.ntp.org/pipermail/questions/2006-July/010829.html Jason Rabel posted information about the TrueTime NTS-100, a decade ago (Dec. 2006). https://www.febo.com/pipermail/time-nuts/2006-December/022532.html His web site hosts the

Re: [time-nuts] HP53131A RS232 question

Well, that's only true if your counter has zero dead-time... I know you know this, 1 second gate time will give slightly less than 1 Sa/S. On Fri, Dec 2, 2016 at 1:15 PM, Bob Camp wrote: > Hi > > With a 1 second gate time, you will get one data output per second with the >

Re: [time-nuts] HP53131A RS232 question

I have a HP53131A and don't have this issue, the only thing I can think of is that you have the cables swapped i.e. the start edge on ch2 and stop edge on ch1. I have firmware REV:3703, If there are any settings you want me to try I am happy to help. On Sat, Dec 3, 2016 at 12:47 PM,

Re: [time-nuts] Best Chance GPS module

-Original Message- From: MLewis Sent: Saturday, December 3, 2016 3:29 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Best Chance GPS module So much to absorb and learn from what people have responded with. Thanks all!

[time-nuts] HP53131A RS232 question

I've tried all the parameters and the update rate still drops to about once every 3 seconds when I turn print on! You still see the 1pps strobing the input channels every transition even with print on. I was using just pins 2, 3 and 5 on the rs232 and switched to a "full" cable with no

Re: [time-nuts] Best Chance GPS module

Hi > On Dec 3, 2016, at 10:29 AM, MLewis wrote: > > So much to absorb and learn from what people have responded with. > > Thanks all! > > On 01/12/2016 12:01 PM, Chris Albertson wrote: >> OK, now I know what you need. Millisecond level time on the data >> processing

Re: [time-nuts] RPi/ beagle bone-like computer without video

On 12/3/16 12:27 AM, David J Taylor wrote: From: jimlux The Raspberry Pi OS includes a free MATLAB licence, as I expect you already know. yes, but "Note that you cannot install MATLAB as a standalone application or execute MATLAB code locally on a Raspberry Pi. To develop applications for

Re: [time-nuts] Audio format with embedded timestamps?

On 12/2/2016 8:01 PM, jimlux wrote: If anyone needs it, I've got python and Matlab/Octave code to read and decode VRT format files, although I don't support ALL possible sample encodings. The standard contemplates all sorts of strange packing and formats - I do signed 16 bit and signed 24 bit.

[time-nuts] TrueTime NTS-100: Firmware?

Fellow Time Travelers, My TrueTime NTS-100 just got hit with the GPS date rollover bug (started showing dates in the year 1997). Does anyone have, or know of, an appropriate firmware update for this beastie? Or is it time to recycle the thing? Would replacing the GPS

Re: [time-nuts] RPi/ beagle bone-like computer without video

From: jimlux The Raspberry Pi OS includes a free MATLAB licence, as I expect you already know. yes, but "Note that you cannot install MATLAB as a standalone application or execute MATLAB code locally on a Raspberry Pi. To develop applications for the Raspberry Pi to be used in standalone