[time-nuts] Can Lady Heather set PC time directly from a Trimble Thunderbolt?

2017-08-03 Thread Chris Wilson
03/08/2017 14:50 I use an NTP client to set my Windows 7 64 bit PC time for digital mode amateur radio activities, but I was wondering if my Trimble Thunderbolt and Lady Heather can do the same job? If it can, how do I do it please, and can the PC show GMT and not UTC, and finally does the

Re: [time-nuts] Can Lady Heather set PC time directly from a Trimble Thunderbolt?

2017-08-03 Thread Chris Albertson
This idea keeps coming up. "Jamming" the time from a GPS into a computer is NEVER the best idea. When you "jam" the time the PC internal clock moves in jerks and jumps where it will move forward and even backward. The only way that works well is to discipline the PC's clock using the same

Re: [time-nuts] Fwd: [hpsdr] SDR experiment for the solar eclipse

2017-08-03 Thread Alan Melia
A Time Nut would measure phase change across the path of totality using GPS locked SDR receivers :-)) As was done on the Eclipse that passed between the UK and Iceland a couple of years ago. Keflavik NRK's ionospheric signal was returned from inside the path of totality to most of the north of

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

2017-08-03 Thread Adrian Godwin
Could Lady Heather provide an NTP server so a local NTP client could access the GPS time ? Or is that an overcomplicated way to do it? On 3 Aug 2017 20:19, "David J Taylor via time-nuts" wrote: > I use an NTP client to set my Windows 7 64 bit PC time for digital > mode

[time-nuts] Fwd: [hpsdr] SDR experiment for the solar eclipse

2017-08-03 Thread John Ackermann N8UR
This is a little off-topic, but thought some of the group might be interested... so please forgive the interruption. John Forwarded Message Subject: [hpsdr] SDR experiment for the solar eclipse Date: Thu, 3 Aug 2017 15:07:57 -0400 From: John Ackermann N8UR

Re: [time-nuts] Fwd: [hpsdr] SDR experiment for the solar eclipse

2017-08-03 Thread John Ackermann N8UR
That experiment is happening, too. Folks will be monitoring WWV and CHU in narrowband mode with the same tools they use in the frequency measuring tests. (You can't really do direct phase comparisons on HF frequencies because between the noise and the ionospheric effects, including doppler

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

2017-08-03 Thread David J Taylor via time-nuts
I use an NTP client to set my Windows 7 64 bit PC time for digital mode amateur radio activities, but I was wondering if my Trimble Thunderbolt and Lady Heather can do the same job? If it can, how do I do it please, and can the PC show GMT and not UTC, and finally does the date glitch affect

Re: [time-nuts] Can Lady Heather set PC time directly from a TrimbleThunderbolt?

2017-08-03 Thread Martin Burnicki
Adrian Godwin wrote: > Could Lady Heather provide an NTP server so a local NTP client could access > the GPS time ? Or is that an overcomplicated way to do it? If LH can adjust the system time (I don't know if it can) then you could in addition install ntpd and configure the "local clock"

Re: [time-nuts] Thunderbolt question

2017-08-03 Thread Chris Waldrup
Thank you Didier. I'll check tomorrow for further issues. Chris > On Aug 3, 2017, at 10:05 PM, Didier Juges wrote: > > "If the Thunderbolt loses satellites, does it still put out a 10 Mhz > signal?" > > Yes of course. When that happens, the Thunderbolt is said to be in

Re: [time-nuts] Thunderbolt question

2017-08-03 Thread Didier Juges
"If the Thunderbolt loses satellites, does it still put out a 10 Mhz signal?" Yes of course. When that happens, the Thunderbolt is said to be in holdover. On Aug 3, 2017 9:29 PM, "Chris Waldrup" wrote: > Hi, > > I just noticed the laptop that is always connected to my

[time-nuts] Thunderbolt question

2017-08-03 Thread Chris Waldrup
Hi, I just noticed the laptop that is always connected to my Thunderbolt had a yellow block under COM1 on the Tboltmon program where it normally is green. Also the date up on the screen was in early July. Satellites were still shown. The counter I leave connected still shows a 10 Mhz output.

Re: [time-nuts] Fwd: [hpsdr] SDR experiment for the solar eclipse

2017-08-03 Thread Alan Melia
Hi John appreciate the problems at HF, and Boulder is very close to the track of the totality to use WWVB Enjoy the event hope you record some interesting effects. Best Wishes Alan G3NYK - Original Message - From: "John Ackermann N8UR" To: Sent:

Re: [time-nuts] Fwd: [hpsdr] SDR experiment for the solar eclipse

2017-08-03 Thread jimlux
On 8/3/17 12:10 PM, John Ackermann N8UR wrote: This is a little off-topic, but thought some of the group might be interested... so please forgive the interruption. Here's a time-nuts connection some ionosphere scientists I've been working with suggest that you sync your SDR and make it