[time-nuts] Prologix_GPIB vi
I have just gotten Labview Home, This is the first serious vi I have written. It sweeps an HP3325A , collects data on an HP3478A and sweeps. The sweep is strip and I would like the Xaxis to be stationary with Fmax and Fmin as the limits. I can not find this plot type in the library. Any suggestions? Bill Reed --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus HP3325A_HP3478A_Sweep.vi Description: Binary data ___ 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] Digital Phasae Lock Loops
I also knew Dr. Gardner in that time frame. I had the responsibility for the specification and procurement of the Saturn V com system. It included a phase locked turn around offset transponder for Doppler tracking. Also forward command and return telemetry. To gain some knowledge of phase locked systems I contracted Dr. Gardner to conduct a course on phase locked techniques at MSFC. This course became the basis for his book. He gave me a signed copy. Bill Reed -Original Message- From: Alexander Pummer Sent: Friday, October 16, 2015 7:05 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Digital Phasae Lock Loops yes as I wrote Dr. Gardner is the pope of the phase locked loops, his book is a heavy weight, not for beginner 73 Alex 10/16/2015 4:16 PM, Dave Daniel wrote: Wasn't Dr. Gardner the author of "the other" PLL book? Or am I confusing his name with another Gardner? DaveD On 10/16/2015 4:33 PM, Alexander Pummer wrote: actually my old friend Dr. Floyd Gardner -- who is the pope of the phase locked loops -- told me some thirty years ego , that the Best book os a very good introduction 73 Alex On 10/16/2015 1:42 PM, Dave Daniel wrote: Roland Best's text is the best (no pun intended) one I have seen on PLLs. I didn't know it was up to a sixth edition. On 10/16/2015 11:18 AM, Alexander Pummer wrote: Hi Steve, I will tell you a big secret; a digital PLL is not a low phase noise system and a very good introduction to PLLs and the digital PLL could be found in Roland Bests: Phase Locked Loops 6/e: Design, Simulation, and Applications 73 KJ6UHN Alex On 10/16/2015 7:45 AM, Martyn Smith wrote: Hello, I want to design a digital phase lock loop. I intend to lock a 10 MHz ultra low noise oscillator that we make to an external frequency standard. I need a digital PLL as I’m trying to get a loop bandwidth 0.1 Hz. Has anyone had any experience of Digital PLL’s or can point me to any documents published? Regards Steve ___ 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. ___ 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. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ 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] Digital Phase Lock Loops
I also knew Dr. Gardner in that time frame. I had the responsibility for the specification and procurement of the Saturn V comm system. It included a phase locked turn around offset transponder for Doppler tracking. Also forward command and return telemetry. To gain some knowledge of phase locked systems I contracted Dr. Gardner to conduct a course on phase locked techniques at MSFC. This course became the basis for his book. He gave me a signed copy. Bill Reed -Original Message- From: Alexander Pummer Sent: Friday, October 16, 2015 5:33 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Digital Phasae Lock Loops actually my old friend Dr. Floyd Gardner -- who is the pope of the phase locked loops -- told me some thirty years ego , that the Best book os a very good introduction 73 Alex On 10/16/2015 1:42 PM, Dave Daniel wrote: Roland Best's text is the best (no pun intended) one I have seen on PLLs. I didn't know it was up to a sixth edition. On 10/16/2015 11:18 AM, Alexander Pummer wrote: Hi Steve, I will tell you a big secret; a digital PLL is not a low phase noise system and a very good introduction to PLLs and the digital PLL could be found in Roland Bests: Phase Locked Loops 6/e: Design, Simulation, and Applications 73 KJ6UHN Alex On 10/16/2015 7:45 AM, Martyn Smith wrote: Hello, I want to design a digital phase lock loop. I intend to lock a 10 MHz ultra low noise oscillator that we make to an external frequency standard. I need a digital PLL as I’m trying to get a loop bandwidth < 0.1 Hz. Has anyone had any experience of Digital PLL’s or can point me to any documents published? Regards Steve ___ 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. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ 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] GPS TIMING SOLUTION CXR LARUS 545000-9
Hi, I got at auction three CXR LARUS 54500-9 chassis. They slots are empty – no cards included. The chassis have two GPSDO slots and 13 others ??? The back panel has: 1. Two TNC antenna connectors 2. Three BNC connectors a. 10 MHz b. 1 PPS c. IRIG-B 3. RJxx TCC/IP 4. A Jones terminal for 48 vdc and Battery The chassis are 12 x 12 x 18 and 20 lbs. If you have cards here is the deal. $ 20.00 plus shipping (each). Negotiable Contact me offline for more details. Bill br...@otelco.net --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ 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] Fluke/Gigatronics 6060 series (6062A specifically)output amplitude cal constants
I have a service manual for the 6080A/AN. The cal procedure may be the same. Bill Reed -Original Message- From: John Ackermann N8UR Sent: Tuesday, August 11, 2015 6:06 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Fluke/Gigatronics 6060 series (6062A specifically)output amplitude cal constants I'd be interested in that as well... mine is out of amplitude cal as well. On Aug 11, 2015, at 4:23 PM, Richard Moore richiem5...@gmail.com wrote: Does anyone know the procedure for resetting the output level constants in these generators? The manuals I’ve found are silent on this, but it was obviously done at the factory… Mine needs levelling. Dick Moore ___ 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. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___ 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] R: Re: Racal Dana 1992 universal counter
I have an NI GPIB board ( $ 29.00 on Ebay ) with an ISA connector. The computer I use has Win 98SE with one ISA and several PCI. NI has two short programs ( ULI and Ibconf ) that will allow QB45 to interface with the ISA board. I have interfaced with several instruments with no trouble ( HP 3325A, HP 3478A, Fluke 6080A/AN and Wayne Kerr PSG2400L ) . I capture the amplitude and phase of an HP 8405A with an RS232 DI-194S A/D. All work great with QB45. -Original Message- From: Bryan _ Sent: Thursday, January 22, 2015 8:00 PM To: TIme Nuts Subject: Re: [time-nuts] R: Re: Racal Dana 1992 universal counter Off topic somewhat, but an interesting project . http://www.dalton.ax/hpdisk/ -=Bryan=- Date: Thu, 22 Jan 2015 23:06:53 +0100 From: iov...@inwind.it To: time-nuts@febo.com Subject: [time-nuts] R: Re: Racal Dana 1992 universal counter I' ve used for a while a National Instruments RS232-GPIB converter with my two 1992s using the military language. I wrote my programs myself in QuickBasic under MS-DOS on a laptop. The whole thing worked quite well. Indeed I had a vague info that the counter could be switched to standard GPIB but I was never able to do the maneuver, neither did I ever have confirmation from this list that someone actually succeeded doing this. Antonio I8IOV Da: c...@omen.com Data: 22/01/2015 20.13 A: time-nuts@febo.com Ogg: Re: [time-nuts] Racal Dana 1992 universal counter I forgot to mention -- the 1992 has a jumper that selects between vanilla GPIB and a special Air Force ATE standard. Mine came with the Air Force setting. -- Chuck Forsberg WA7KGX c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc The High Reliability Software 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ 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. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ___ 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] EZGPIB / ProfiLab
Hi, I am using EZGPIB to capture data via HP3325A and HP3478A and it works great ( thanks Jack ). Ulrich Bangert in the EZGPIB manual suggests that EZGPIB and ProfiLab can run concurrently. Does this mean that I can plot data via ProfiLab in near real time ( without exiting EZGPIB and plotting a stored file)? If anybody has any experience with ProfiLab. I would like to know it capabilities before procuring. I have the demo but it seems to be missing some dll’s that are required. Contact me offline if you do not want a new thread. Bill Reed br...@otelco.net --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ___ 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] HP 3586B Info
Hi Perrier, Thanks, I would like the documents. I have a HP 3586B and its sensitivity is right on for the 20 Hz and 400 Hz bands but is about 30 dB low for the 3100 Hz band. I have manuals but have not found the fault. Do you have suggestions? Regards, Bill br...@otelco.net -Original Message- From: Perry Sandeen via time-nuts Sent: Saturday, November 08, 2014 2:56 PM To: time-nuts-requ...@febo.com Subject: [time-nuts] HP 3586B Info List, I've assembled three PDF documents for the HP 3586B. An electrolytic capacitor replacement list, a 15 KHz IF pick-off doc and the Beethoven audio test. You get three for the price of one: FREE. If interested, please send me a new email off line. Regards, Perrier ___ 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. --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ___ 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] HP 5355 boards
Hi, I have a set of extender boards for the HP 5355 as follows: 05355-60023 05335-60025 05355-60021 05355-60020 05355-60024 If $ 75.00 including shipping in US seems reasonable contact me or make offer. Bill Reed --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ___ 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] VNA design
Hi, I have an HP 8412B and an HP 8413A, which go with the HP 8410, for $ 30.00 ( maybe less) each plus actual shipping. They look good but I have no way to test then since I have no mainframe. Contact offline if interested. I can email pictures. They will be at the Huntsville Hamfest later this summer. Bill Reed ree...@otelco.net -Original Message- From: Alexander Pummer Sent: Monday, June 02, 2014 5:18 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] VNA design Although I used to work for one of the competitor, I still do have a complete working 8410, Rick is right, it is a very nice teaching tool 73 KJ6UHN On 6/2/2014 2:36 PM, Richard (Rick) Karlquist wrote: On 6/2/2014 12:41 PM, Brooke Clarke wrote: Hi: I started with the HP 8410 and added an external computer. Since it can be used manually I think it's an excellent way to learn about VNAs. http://www.prc68.com/I/MWTE.shtml#NA For my last 8 years at Agilent before retiring in March, I was doing advanced RD on network analyzers. The newer guys coming up didn't have an intuitive understanding of network analyzer architectures like I did. I started using the 8410 back in 1973 before I even worked for HP. Because of the modular design, it was like a teaching tool that forced you to understand what was going on. When I mentored the young guys, I would explain to them a lot of principles based on the 8410. Modern network analyzers are too automatic. The 8410 puts modern VNA's into perspective. BTW, I used to sit next to Dick Lee, who was a member of the 8410 design team in 1963 at the dawn of the golden age of microwave instruments based on YIG tuned oscillators and step recovery diode samplers. As you noted, the architecture was built around the YIG tuned oscillator and certain things were done that way they were because of that. Rick Karlquist N6RK ___ 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. --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ___ 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] Unknown GPS board
Hi, I have a GPS board with “Motorola 84D43796M02” on the board. The Rx chip has M 58M01 and WORB on it. The shielded cage has what appears to be a 19.09 MHz oscillator. The frequency is hard to read. A chip (oscillator ?)outside of the cage has 32.768 VT on it. It has a double row 10 pin connector. Any pin functions or spec would be appreciated. Bill ___ 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] fast edge, rise time.
Paul It weighs 30 lbs. Pictures are on face book or I can email with an address. Bill -Original Message- From: paul swed Sent: Wednesday, January 15, 2014 12:20 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. Bill Interesting and curious what does it weigh? I would guess since its NIST a lot. Regards Paul WB8TSL On Wed, Jan 15, 2014 at 1:15 PM, Bill Reed br...@otelco.net wrote: Thanks Mark I must have serial number 2 of that series of IPG's. The one in the article is SN-3-75-1 and mine is SN-3-75-2. It was probably fabricated in March 75. I plan on visiting Redstone library to look up references 8 and 9. Bill -Original Message- From: Mark Kahrs Sent: Tuesday, January 14, 2014 12:02 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. You might be interested to know this was discussed in a paper by Jim Andrews (founder of Picosecond Pulse Laboratories): http://www.nist.gov/calibrations/upload/im-25-4.pdf From the age of the paper, I'd say this generator is probably more than 40 years young. On Mon, Jan 13, 2014 at 2:22 PM, Bill Reed br...@otelco.net wrote: Hi, Since there is no interest in my pulse generator maybe one of you knows someone at NBS who can provide a schematic of the generator. It has NBS Impulse Generator SN 3-75-2 engraved on the front panel and is ~ 10 x 16 x 17. Thanks, Bill Reed -Original Message- From: Bill Reed Sent: Tuesday, January 07, 2014 7:53 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. Hi, Since you guys are interested in fast pule generators, I have one you may be interested in. I got it in govt. auction about 25 years ago for ~ $ 50.00. I will sell it to anyone for $ 50.00 plus shipping. I prefer to sell to someone who will restore and use it rather than parting it. It has more than $ 50.00 parts in it. There are a 30 turn 6.5 inch diameter hard line, wide band hybrid coupler, diode assembly and several adapters and attenuators. I believe the hard line discharges into a step diode. The power supply includes 200 V plus other voltages. If I remember correctly ( I have no high speed scope now ) the pulse is 2 nanoseconds wide with a 280 picosecond rise time and and 2.5 Vpp. I checked with a 200 MHz digital scope and can see a pulse that verifies my scopes bandwidth. The rate generator works but has problems. See facebook (ree...@otelco.net) for pictures under Impulse. Bill Reed256 586-3446 -Original Message- From: ct1dmk Sent: Sunday, December 29, 2013 7:36 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. Thank you all for your comments on this subject. Happy new year. Luis Cupido. ct1dmk. ___ 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. ___ 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] fast edge, rise time.
Thanks Mark I must have serial number 2 of that series of IPG's. The one in the article is SN-3-75-1 and mine is SN-3-75-2. It was probably fabricated in March 75. I plan on visiting Redstone library to look up references 8 and 9. Bill -Original Message- From: Mark Kahrs Sent: Tuesday, January 14, 2014 12:02 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. You might be interested to know this was discussed in a paper by Jim Andrews (founder of Picosecond Pulse Laboratories): http://www.nist.gov/calibrations/upload/im-25-4.pdf From the age of the paper, I'd say this generator is probably more than 40 years young. On Mon, Jan 13, 2014 at 2:22 PM, Bill Reed br...@otelco.net wrote: Hi, Since there is no interest in my pulse generator maybe one of you knows someone at NBS who can provide a schematic of the generator. It has NBS Impulse Generator SN 3-75-2 engraved on the front panel and is ~ 10 x 16 x 17. Thanks, Bill Reed -Original Message- From: Bill Reed Sent: Tuesday, January 07, 2014 7:53 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. Hi, Since you guys are interested in fast pule generators, I have one you may be interested in. I got it in govt. auction about 25 years ago for ~ $ 50.00. I will sell it to anyone for $ 50.00 plus shipping. I prefer to sell to someone who will restore and use it rather than parting it. It has more than $ 50.00 parts in it. There are a 30 turn 6.5 inch diameter hard line, wide band hybrid coupler, diode assembly and several adapters and attenuators. I believe the hard line discharges into a step diode. The power supply includes 200 V plus other voltages. If I remember correctly ( I have no high speed scope now ) the pulse is 2 nanoseconds wide with a 280 picosecond rise time and and 2.5 Vpp. I checked with a 200 MHz digital scope and can see a pulse that verifies my scopes bandwidth. The rate generator works but has problems. See facebook (ree...@otelco.net) for pictures under Impulse. Bill Reed256 586-3446 -Original Message- From: ct1dmk Sent: Sunday, December 29, 2013 7:36 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. Thank you all for your comments on this subject. Happy new year. Luis Cupido. ct1dmk. ___ 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. ___ 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] fast edge, rise time.
Hi, Since there is no interest in my pulse generator maybe one of you knows someone at NBS who can provide a schematic of the generator. It has NBS Impulse Generator SN 3-75-2 engraved on the front panel and is ~ 10 x 16 x 17. Thanks, Bill Reed -Original Message- From: Bill Reed Sent: Tuesday, January 07, 2014 7:53 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. Hi, Since you guys are interested in fast pule generators, I have one you may be interested in. I got it in govt. auction about 25 years ago for ~ $ 50.00. I will sell it to anyone for $ 50.00 plus shipping. I prefer to sell to someone who will restore and use it rather than parting it. It has more than $ 50.00 parts in it. There are a 30 turn 6.5 inch diameter hard line, wide band hybrid coupler, diode assembly and several adapters and attenuators. I believe the hard line discharges into a step diode. The power supply includes 200 V plus other voltages. If I remember correctly ( I have no high speed scope now ) the pulse is 2 nanoseconds wide with a 280 picosecond rise time and and 2.5 Vpp. I checked with a 200 MHz digital scope and can see a pulse that verifies my scopes bandwidth. The rate generator works but has problems. See facebook (ree...@otelco.net) for pictures under Impulse. Bill Reed256 586-3446 -Original Message- From: ct1dmk Sent: Sunday, December 29, 2013 7:36 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. Thank you all for your comments on this subject. Happy new year. Luis Cupido. ct1dmk. ___ 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] fast edge, rise time.
Hi, Since you guys are interested in fast pule generators, I have one you may be interested in. I got it in govt. auction about 25 years ago for ~ $ 50.00. I will sell it to anyone for $ 50.00 plus shipping. I prefer to sell to someone who will restore and use it rather than parting it. It has more than $ 50.00 parts in it. There are a 30 turn 6.5 inch diameter hard line, wide band hybrid coupler, diode assembly and several adapters and attenuators. I believe the hard line discharges into a step diode. The power supply includes 200 V plus other voltages. If I remember correctly ( I have no high speed scope now ) the pulse is 2 nanoseconds wide with a 280 picosecond rise time and and 2.5 Vpp. I checked with a 200 MHz digital scope and can see a pulse that verifies my scopes bandwidth. The rate generator works but has problems. See facebook (ree...@otelco.net) for pictures under Impulse. Bill Reed256 586-3446 -Original Message- From: ct1dmk Sent: Sunday, December 29, 2013 7:36 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] fast edge, rise time. Thank you all for your comments on this subject. Happy new year. Luis Cupido. ct1dmk. ___ 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] GPS with 10KHz output
Hi Merv, Thanks. I will try one. This is a great group! Bill -Original Message- From: Merv Thomas Sent: Thursday, September 19, 2013 9:01 PM To: time-nuts@febo.com Subject: Re: [time-nuts] GPS with 10KHz output Hi Bill, I have a number of these modules purchased from the particular eBay source you gave a link for. They work well but I never found a way to keep their data output as NMEA as they seem to revert to Binary on power down. However if it is just the 10KHz output you want from them or their Binary data stream they should be fine in my humble opinion. I have a small batch file that commands them into NMEA once powered up but nothing to save this setting. Merv VK6BMT ___ 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] GPS with 10KHz output
Hi, Does anyone know the suitability of this module for GPSDO ? I am new to the group. Thanks, Bill R http://www.ebay.com/itm/Navman-jupiter-T-Tu60-GPS-Kit-1pps-10khz-GPS-Module-/260790984470?pt=US_Ham_Radio_Amplifiershash=item3cb85a9f16 ___ 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.
