[time-nuts] T-Bolt question.
A question (or two) if I may, not being a T'Bolt owner/user. (Yet.) Re the 1PPS output. Can it be selected to be wider than the 20uS or so illustrated recently, or will NTPD (on FreeBSD) work OK with that pulse as is? I know TAPR have a FatPPS kit, just a monostable in essance. http://www.tapr.org/kits_fatpps.html In case something *Needs* a wide pulse, and all you have is a pulse in the uS region. If the T'Bolt looses sight of the GPS satelite signals, does it continue to provide a 1PPS output, derived from the internal Rubidium oscilator? I think I read somewhere that it does continue to provide the 10MHz output, in the absence of GPS signals, once it has got itself sorted in the first place. Lastly, unrelated to Time (other than it's to do with this list.) Any (sensible) suggestions as to why I often miss a digest mail? Nothing ends up in the spam bucket, but I seem to miss about 1 in 8 digests at the moment, mostly individual digests, but sometimes a block of up to 4 go missing, that seems to happen just after the digest volume number increments. Cheers All. Dave B. G0WBX. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt question.
Hi Dave, 1) Tbolt 1PPS pulsewidth is not adjustable. 2) Yes, the Tbolt will give a 1PPS in holdover mode if there is no visable GPS satellites. (Its an crystal oven oscillator (OCXO) in a standard Tbolt not a Rubidium oscillator, even though it could be modified to dicipline an external oscillator of your choice.) -- Björn A question (or two) if I may, not being a T'Bolt owner/user. (Yet.) Re the 1PPS output. Can it be selected to be wider than the 20uS or so illustrated recently, or will NTPD (on FreeBSD) work OK with that pulse as is? I know TAPR have a FatPPS kit, just a monostable in essance. http://www.tapr.org/kits_fatpps.html In case something *Needs* a wide pulse, and all you have is a pulse in the uS region. If the T'Bolt looses sight of the GPS satelite signals, does it continue to provide a 1PPS output, derived from the internal Rubidium oscilator? I think I read somewhere that it does continue to provide the 10MHz output, in the absence of GPS signals, once it has got itself sorted in the first place. Lastly, unrelated to Time (other than it's to do with this list.) Any (sensible) suggestions as to why I often miss a digest mail? Nothing ends up in the spam bucket, but I seem to miss about 1 in 8 digests at the moment, mostly individual digests, but sometimes a block of up to 4 go missing, that seems to happen just after the digest volume number increments. Cheers All. Dave B. G0WBX. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt question.
Yes the PPS will continue from the internal OCXO no Rubidium. http://trl.trimble.com/docushare/dsweb/Get/Document-10001/ThunderBoltBook2003.pdf I'm unaware of any firmware command to extend width. Stanley - Original Message From: Dave Baxter d...@uk-ar.co.uk To: time-nuts@febo.com Sent: Mon, February 8, 2010 4:39:00 AM Subject: [time-nuts] T-Bolt question. A question (or two) if I may, not being a T'Bolt owner/user. (Yet.) Re the 1PPS output. Can it be selected to be wider than the 20uS or so illustrated recently, or will NTPD (on FreeBSD) work OK with that pulse as is? I know TAPR have a FatPPS kit, just a monostable in essance. http://www.tapr.org/kits_fatpps.html In case something *Needs* a wide pulse, and all you have is a pulse in the uS region. If the T'Bolt looses sight of the GPS satelite signals, does it continue to provide a 1PPS output, derived from the internal Rubidium oscilator? I think I read somewhere that it does continue to provide the 10MHz output, in the absence of GPS signals, once it has got itself sorted in the first place. Lastly, unrelated to Time (other than it's to do with this list.) Any (sensible) suggestions as to why I often miss a digest mail? Nothing ends up in the spam bucket, but I seem to miss about 1 in 8 digests at the moment, mostly individual digests, but sometimes a block of up to 4 go missing, that seems to happen just after the digest volume number increments. Cheers All. Dave B. G0WBX. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt question.
I often don't receive my own post to the list at one time I wondered if it was the links in my post but I'm not so sure now. People have replied to my post with it included even though I never received it so I know the problem is not me to the list but the list to me. I have also noticed some posts are delayed for longer than normal. Suspect others have the same problem when they repost the same info twice. Stanley - Original Message From: Dave Baxter d...@uk-ar.co.uk To: time-nuts@febo.com Sent: Mon, February 8, 2010 4:39:00 AM Subject: [time-nuts] T-Bolt question. snip Lastly, unrelated to Time (other than it's to do with this list.) Any (sensible) suggestions as to why I often miss a digest mail? Nothing ends up in the spam bucket, but I seem to miss about 1 in 8 digests at the moment, mostly individual digests, but sometimes a block of up to 4 go missing, that seems to happen just after the digest volume number increments. Cheers All. Dave B. G0WBX. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
HI Dick, I have the same problem and nothing works to enter the coordonates. More, i don't see the SV nor AMUs. 73 Alain F4GBC - Original Message - From: Richard W. Solomon w1...@earthlink.net To: time-nuts@febo.com Sent: Thursday, January 14, 2010 3:50 AM Subject: Re: [time-nuts] T-Bolt Question Perhaps I posted this to the wrong forum ?? Maybe if I had Duct-Taped it to a pendulum I may have gotten more responses ?? 73, Dick, W1KSZ -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 5:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
Thanks to those who replied, all is now Green. 73, Dick, W1KSZ -Original Message- From: Jim Mandaville z...@dakotacom.net Sent: Jan 13, 2010 8:12 PM To: Richard W. Solomon w1...@earthlink.net, Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] T-Bolt Question And after typing them in, you of course have to save the segment on the same page. Jim Perhaps I posted this to the wrong forum ?? Maybe if I had Duct-Taped it to a pendulum I may have gotten more responses ?? 73, Dick, W1KSZ -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 5:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
Starting without good saved coordinates will put you into search mode, and it may take around 45 minutes to an hour to establish a position, after which you will see SVs and AMUs. Once you get a good position, either from self-survey by the Tbolt or by a different GPS, you can enter these as follows: On the Tbolt monitor main page: go to menu heading setting setup; under that, go to position In the position window, type in your coordinates. (The lat. and long. must be in degrees and decimal degrees. If you are starting with degrees, minutes and decimal minutes, divide the minutes with decimal minutes by 60 and add the result to your original whole degrees.) The longitude must start with a negative sign if it is west. For east, no sign is required. click set accurate position; then click save segment and close the window you should now see the saved position in the main Tbolt window and the Tbolt will now start from scratch using these coordinates. This will reduce your fix time to a few minutes. Jim HI Dick, I have the same problem and nothing works to enter the coordonates. More, i don't see the SV nor AMUs. 73 Alain F4GBC - Original Message - From: Richard W. Solomon w1...@earthlink.net To: time-nuts@febo.com Sent: Thursday, January 14, 2010 3:50 AM Subject: Re: [time-nuts] T-Bolt Question Perhaps I posted this to the wrong forum ?? Maybe if I had Duct-Taped it to a pendulum I may have gotten more responses ?? 73, Dick, W1KSZ -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 5:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
To All, The following procedure is taken from notes I made years ago when setting up my TBOLT using TBOLTMON. I have never had to enter the information again and the unit recovers automatically even after extended power failures that exhausted its UPS. Click Setup - Self-Survey, Click the Enable and Save buttons Click Set Survey, Click Save Segment, Click Close Click Control - Restart Self-Survey. The Saved Position alarm should change to green once the survey process finishes. You do not need to copy anything manually unless you want to specify a more-accurate survey position than what the Thunderbolt arrives at on its own. Ken, WA2LBI On Thu, Jan 14, 2010 at 12:07, Jim Mandaville z...@dakotacom.net wrote: Starting without good saved coordinates will put you into search mode, and it may take around 45 minutes to an hour to establish a position, after which you will see SVs and AMUs. Once you get a good position, either from self-survey by the Tbolt or by a different GPS, you can enter these as follows: On the Tbolt monitor main page: go to menu heading setting setup; under that, go to position In the position window, type in your coordinates. (The lat. and long. must be in degrees and decimal degrees. If you are starting with degrees, minutes and decimal minutes, divide the minutes with decimal minutes by 60 and add the result to your original whole degrees.) The longitude must start with a negative sign if it is west. For east, no sign is required. click set accurate position; then click save segment and close the window you should now see the saved position in the main Tbolt window and the Tbolt will now start from scratch using these coordinates. This will reduce your fix time to a few minutes. Jim HI Dick, I have the same problem and nothing works to enter the coordonates. More, i don't see the SV nor AMUs. 73 Alain F4GBC - Original Message - From: Richard W. Solomon w1...@earthlink.net To: time-nuts@febo.com Sent: Thursday, January 14, 2010 3:50 AM Subject: Re: [time-nuts] T-Bolt Question Perhaps I posted this to the wrong forum ?? Maybe if I had Duct-Taped it to a pendulum I may have gotten more responses ?? 73, Dick, W1KSZ -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 5:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
Or use the beta realase of Lady Heather to do a 48 hour accurate survey. Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Ken Winterling Sent: 14 January 2010 17:53 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] T-Bolt Question To All, The following procedure is taken from notes I made years ago when setting up my TBOLT using TBOLTMON. I have never had to enter the information again and the unit recovers automatically even after extended power failures that exhausted its UPS. Click Setup - Self-Survey, Click the Enable and Save buttons Click Set Survey, Click Save Segment, Click Close Click Control - Restart Self-Survey. The Saved Position alarm should change to green once the survey process finishes. You do not need to copy anything manually unless you want to specify a more-accurate survey position than what the Thunderbolt arrives at on its own. Ken, WA2LBI On Thu, Jan 14, 2010 at 12:07, Jim Mandaville z...@dakotacom.net wrote: Starting without good saved coordinates will put you into search mode, and it may take around 45 minutes to an hour to establish a position, after which you will see SVs and AMUs. Once you get a good position, either from self-survey by the Tbolt or by a different GPS, you can enter these as follows: On the Tbolt monitor main page: go to menu heading setting setup; under that, go to position In the position window, type in your coordinates. (The lat. and long. must be in degrees and decimal degrees. If you are starting with degrees, minutes and decimal minutes, divide the minutes with decimal minutes by 60 and add the result to your original whole degrees.) The longitude must start with a negative sign if it is west. For east, no sign is required. click set accurate position; then click save segment and close the window you should now see the saved position in the main Tbolt window and the Tbolt will now start from scratch using these coordinates. This will reduce your fix time to a few minutes. Jim HI Dick, I have the same problem and nothing works to enter the coordonates. More, i don't see the SV nor AMUs. 73 Alain F4GBC - Original Message - From: Richard W. Solomon w1...@earthlink.net To: time-nuts@febo.com Sent: Thursday, January 14, 2010 3:50 AM Subject: Re: [time-nuts] T-Bolt Question Perhaps I posted this to the wrong forum ?? Maybe if I had Duct-Taped it to a pendulum I may have gotten more responses ?? 73, Dick, W1KSZ -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 5:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
I did not use the self survey mode, my antenna position was accurately surveyed and I used those coordinates. I just entered them on SETUP menu, scrolled to POSITION and entered the coordinates. Pressed the SET ACCURATE position radiokey, and then saved the segment. Brian KD4FM Richard W. Solomon wrote: Perhaps I posted this to the wrong forum ?? Maybe if I had Duct-Taped it to a pendulum I may have gotten more responses ?? 73, Dick, W1KSZ -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 5:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
I think you have to copy it down in pencil, then type it in yourself as an accurate position on that position window. At least it worked for me! Jim, KF7A Perhaps I posted this to the wrong forum ?? Maybe if I had Duct-Taped it to a pendulum I may have gotten more responses ?? 73, Dick, W1KSZ -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 5:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
And after typing them in, you of course have to save the segment on the same page. Jim Perhaps I posted this to the wrong forum ?? Maybe if I had Duct-Taped it to a pendulum I may have gotten more responses ?? 73, Dick, W1KSZ -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 5:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] T-Bolt Question
Sorry, fat fingers !! -Original Message- From: Richard W. Solomon w1...@earthlink.net Sent: Jan 12, 2010 3:20 PM To: time-nuts@febo.com Subject: [time-nuts] E-Bolt Question I am in T-Bolt Monitor software. The Saved Position is Yellow. How do I get the T-Bolt to save the survey results ? Thanks, Dick, W1KSZ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
