Re: [time-nuts] Software for Brilliant Instruments B1220?
I need some advice on the HP8505A it will not vary the rf frequency output it randomly show the counter readingb ut the frequency will not change I tested with a counter. Thank You Sal C. Cornacchia Electronic RF Engineer Ret. On Saturday, March 1, 2014 12:58:04 PM, Richard Parrish calc...@swbell.net wrote: Does anyone have access to a copy of the software for the Brilliant Instruments B1220? I just purchased one off of eBay and, of course, they don't have it. Thanks, Richard Parrish calc...@swbell.net ___ 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] Serial port splitter s/w
I have some problems with My 8505A Analyzer, it has no RF output, I checked the YTO and other frequency dividers and it appears to be OK some times there is RF output only it will not tune and it seems to cut out as I tune trough the frequency range. Thank You Sal C. Cornacchia Electronic RF Engineer Ret. On Wednesday, February 26, 2014 12:33:17 PM, Chris Albertson albertson.ch...@gmail.com wrote: It's not going to work. If the purpose of running the Thunderbolt is only to drive NTP then you don't need LH. NTP's only tags the pulses to the nearest microsecond, nano sec on accuracy is lost on NTP. I'd even say the TB is the wrong GPS for NTP. It costs to much and uses to much power. But if you are also, or mainly, using the Thunderbolt for it's 10Mhz and NTP is a secondary function then a TB makes sense. Yes you NEED the PPS on the serial cable. Thunderbolts do not send NMEA. Thunderbolts send their own data format that is unique to Trimble. Don't modify the GPS receiver. Make a special cable adapter. When you do this pay attention to polarity of the PPS signal. It is easy to get it backwards. You want the raising edge of the TB pulse to interrupt the computer. It you invert the signal the wrong number of times the time will be off by the ouse length and I don't know if the pulse length is controlled to the level the leading edge is. Remember RS232 uses negative and positive voltage, data lines use negative logic, control lines positive. The TB's PPS is TTL level. Many rs232 ports do accept t/l level if you get the polariy correct. Again don't even bother to run an NTP server without PPS. You may as well just get time from some internet time servers. You can NOT control a GPS from two ports. Both NTP and LH will try to send commands to the GPS. Likely, almost certainly you need to build a small circuit board the has two connectors that face the TB (PPS and serial) and one that faces the computer. The little perfboard makes a neat way to or connect cables but you could solder up a y--cable The best thing to do is get a cheaper GPS, and one that uses less power to drive the NTP server. The old Motorola Oncore series are cheap and the new breed of very small GPSes are good too. DOn't spend more than $40 or $50 on a GPS to drive NTP as ,again NTP record microseconds. You could free up that Windows PC too. It is not the best platform for NTP. Asmall ARM based system (even the Rasbery Pi) will outperform a Windows based NTP server. and use a LOT less power (Power cost for a NTP server is more than you think, it came to about $300 a year for me if I used a standard PC and a thunderbolt. Switching to a very tiny ARM based system and a smaller GPS gave as good performance and power savings paid for the hardware in 1/2 a year. $.21/KWH about 170W and 8760 hours per year comes to a $300 power bill. My current system is powered by a 1000 mw plug-in power cube and does not need a cooling fan. On Wed, Feb 26, 2014 at 7:53 AM, David C. Partridge david.partri...@perdrix.co.uk wrote: I'm running Meinberg NTP on the Windows 7 x64 machine to which my Thunderbolt is attached. I'd like to be able to share the serial port between LH and NTP so that I can run the machine as an NTP Stratum 1 server locked to the TB, and also be able to use LH to check things. I looked around the with Google, and saw *numerous serial port splitters. Which is recommended? Also what's the best way how to configure NTP to lock the the TB on a serial port? Do I need to modify the TB to deliver the PPS down one of the serial data lines or will NTP work well by parsing the NMEA time messages? Many thanks David Partridge ___ 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. -- Chris Albertson Redondo Beach, California ___ 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] Vectron Crystal Oacilator Pin-OUT
Hi, I have a Vectron Model 251-1253A would like to obtain the pin-out Like b+ and 10 Mhz Output , Specifation Sheet wou be great or any information Available Thark You, Sal C. Cornacchia Electronic RF Engineer (RET) ___ 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] Vectron Model 251-1253A Crystal Oscullator Pin-Out
Hi, I have a Vectron Model 251-1253A would like to obtain the pin-out Like b+ and 10 Mhz Output , Specifation Sheet would be great or any information Available Thark You, Sal C. Cornacchia Electronic RF Engineer (RET) ___ 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] FE 5860A breakout board
HI Nigel woul it possble to sent the informatio to me as eMal is corc...@yahoo.ca Than You. From: gandal...@aol.com gandal...@aol.com To: time-nuts@febo.com Sent: Friday, March 1, 2013 3:39:43 PM Subject: Re: [time-nuts] FE 5860A breakout board Hi Geoff, Ian's email address is _cadbloke@hotmail.com_ (mailto:cadbl...@hotmail.com) . I've zipped up what documentation I have and will email it direct. Regards Nigel GM8PZR In a message dated 01/03/2013 19:13:47 GMT Standard Time, melecert...@gmail.com writes: Some two years back, Ian Muir (AKA Gonzo?) produced a breakout board for the FE 5860A, one of which I have. Needless to say, I managed to loose (tidy away!) the documentation. Despite searching the archives and google, I cannot find a link to this. perhaps somebody can help. Thanks Geoff -- # Geoff Blake, G8GNZ JO01fq: Chelmsford, Essex, UK ge...@palaemon.co.uk or melecert...@gmail.com Using Linux: Ubuntu 11.04 on Intel or Debian on UltraSparc and Apple OS X 10.8.2 Mountain Lion on my Macbook Pro. Avoiding Micro$oft like the plague. # ___ 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] FE 5860A breakout board
Hi Nigel, Would it possible to sent me a copy as well My eMail is corc...@yahoo.ca Thank You From: gandal...@aol.com gandal...@aol.com To: time-nuts@febo.com Sent: Friday, March 1, 2013 3:39:43 PM Subject: Re: [time-nuts] FE 5860A breakout board Hi Geoff, Ian's email address is _cadbloke@hotmail.com_ (mailto:cadbl...@hotmail.com) . I've zipped up what documentation I have and will email it direct. Regards Nigel GM8PZR In a message dated 01/03/2013 19:13:47 GMT Standard Time, melecert...@gmail.com writes: Some two years back, Ian Muir (AKA Gonzo?) produced a breakout board for the FE 5860A, one of which I have. Needless to say, I managed to loose (tidy away!) the documentation. Despite searching the archives and google, I cannot find a link to this. perhaps somebody can help. Thanks Geoff -- # Geoff Blake, G8GNZ JO01fq: Chelmsford, Essex, UK ge...@palaemon.co.uk or melecert...@gmail.com Using Linux: Ubuntu 11.04 on Intel or Debian on UltraSparc and Apple OS X 10.8.2 Mountain Lion on my Macbook Pro. Avoiding Micro$oft like the plague. # ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FE 5860A breakout board
Hi Nigel, Would it possible to sent me a copy as well My email is corc...@yahoo.ca Thank You From: gandal...@aol.com gandal...@aol.com To: time-nuts@febo.com Sent: Friday, March 1, 2013 3:39:43 PM Subject: Re: [time-nuts] FE 5860A breakout board Hi Geoff, Ian's email address is _cadbloke@hotmail.com_ (mailto:cadbl...@hotmail.com) . I've zipped up what documentation I have and will email it direct. Regards Nigel GM8PZR In a message dated 01/03/2013 19:13:47 GMT Standard Time, melecert...@gmail.com writes: Some two years back, Ian Muir (AKA Gonzo?) produced a breakout board for the FE 5860A, one of which I have. Needless to say, I managed to loose (tidy away!) the documentation. Despite searching the archives and google, I cannot find a link to this. perhaps somebody can help. Thanks Geoff -- # Geoff Blake, G8GNZ JO01fq: Chelmsford, Essex, UK ge...@palaemon.co.uk or melecert...@gmail.com Using Linux: Ubuntu 11.04 on Intel or Debian on UltraSparc and Apple OS X 10.8.2 Mountain Lion on my Macbook Pro. Avoiding Micro$oft like the plague. # ___ 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.
