[time-nuts] GPS message jitter (was GPS for Nixie Clock)

2016-07-17 Thread Mark Sims
Very few people have the ability to build Lady Heather for Windoze from source... pretty much everybodyl uses the binary. Having people build from source is not an option (except on Linux, it's relatively painless and the tools are easily available and free, plus Linux users tend to know what

Re: [time-nuts] GPS message jitter (was GPS for Nixie Clock)

2016-07-17 Thread Chris Albertson
Can't you take care of this in the build system? I never go near Windows, the last version I used was Win 95. But on other systems I always use something like the GNU Auto tools cmake or whatever and part of the process is to check for the availability of each system call and library and then

Re: [time-nuts] 5061B Service Manual, Page 8-57 (BEAM I, if LOW)

2016-07-17 Thread John Allen
Hi to all - If you have been updated to Windows 10, you have 30 days to go back to your old Windows. It takes from 5 to 30 or more minutes depending on computer speed. Here's how: http://www.howtogeek.com/220723/how-to-uninstall-windows-10-and-downgrade-to-windows-7-or-8.1/ John K1AE

[time-nuts] GPS message jitter (was GPS for Nixie Clock)

2016-07-17 Thread Mark Sims
Heather's gotta work with XP (and maybe Win98)... too many people (including me) run it on old trashy laptops, so no fancy pants new fangled Windoze calls allowed... In the past I've avoided the use of QueryPerformanceCounter due to potential issues with AMD processors, multi-core processors

Re: [time-nuts] GPS Antenna

2016-07-17 Thread Gregory Beat
It should be noted that PCTel acquired a number of antenna manufacturers (1999-2005), Antenna Specialists, Micropulse, some Andrew products, Maxrad. The GPS antenna referenced, GPS-TMG-26, is virtually identical to the earlier Maxrad GPS antenna that is found surplus through many venues.

Re: [time-nuts] GPS Antenna

2016-07-17 Thread Gregory Beat
Here is the original MaxRad GPS-TMG-26N antenna (same part number as PCTEL) that RF Parts is discounting (New Old Stock) for ~ $50.00 https://www.rfparts.com/antenna/antenna-antenna/gps-tmg-26nms.html === Launch3 cleared out surplus (new in box) Symmetricom 58532A GPS antennas earlier this year.

Re: [time-nuts] GPS Antenna

2016-07-17 Thread Bob Camp
Hi > On Jul 17, 2016, at 2:35 AM, David J Taylor > wrote: > > The GPS Antenna Micropulse Z1001 appears to be what is now designated > GPS-TMG-26N > > Lester B Veenstra MØYCM K1YCM W8YCM > les...@veenstras.com > __ > > Why

Re: [time-nuts] 5061B Service Manual, Page 8-57 (BEAM I, if LOW)

2016-07-17 Thread Artek Manuals
Christopher ManualsPlus closed it doors about a year ago so you will get no satisfaction there Send me a private email request and I will send you a copy of page 8-57 from our scan. Page 8-56 is a "blank" Dave manu...@artekmanuals.com On 7/16/2016 11:11 PM, Christopher Hoover wrote:

Re: [time-nuts] GPS message jitter (was GPS for Nixie Clock)

2016-07-17 Thread David J Taylor
From: Mark Sims I just added some code to Lady Heather to record and plot the time that the timing message arrived from the receiver (well, actually the time that the screen update routine was called, maybe a few microseconds difference). I am using my existing GetMsec() routine which on

Re: [time-nuts] GPS Antenna

2016-07-17 Thread David J Taylor
The GPS Antenna Micropulse Z1001 appears to be what is now designated GPS-TMG-26N Lester B Veenstra MØYCM K1YCM W8YCM les...@veenstras.com __ Why is the noise figure so high on these antennas (2.5 dB)? Is that some pre-filtering, perhaps? David --