Re: [time-nuts] Vectron oscillator data
>From VECTRON 229 osc with 7 pin Kovar feed through in circle similar to a tube base: 1 B+ (Oven) 2 N/C 3 N/C 4 B+ (Osc) 5 VCXO Supply 6 VCXO Input 7 return (Case) 73 M0YCM K1YCM Full Name: Lester B Veenstra Job Title: Communication Sys Des Engr Sr Stf Department: 6L01 Site Operations Collaboration and Reach-Back (SOCAR) Company:Integrated Systems & Solutions Business Address: Lockheed Martin IS&S PSC 45 Box 781 APO AE 09468 Home Address Address: Dawn Cottage Norwood, Harrogate HG3, 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Henk ten Pierick Sent: Tuesday, June 19, 2007 9:34 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Vectron oscillator data Hello all, Same question for the Vectron 224-8647-2 100MHz. Henk ten Pierick On Jun 19, 2007, at 12:43, Jeroen Bastemeijer wrote: > Dear All, > > Can someone provide me with the pin-out of a Vectron 244-4799-2 > oscillator? It has a SMA output and a DB-9 connector for power supply. > Other data (stability, supply voltage) is welcome as well! > > Thank you, best regards, Jeroen > > -- > Ing. Jeroen Bastemeijer > > Delft University of Technology > Department of Electrical Engineering > Electronic Instrumentation Laboratory > Mekelweg 4, Room 13.090 > 2628 CD Delft > The Netherlands > > Phone: +31.15.27.86542 > Fax: +31.15.27.85755 > E-mail: [EMAIL PROTECTED] > GPS: Lat N52.2 Lon E4.37157 Alt 46.2m > > > ___ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] GPIB on the HP3586
Thanks Full Name: Lester B Veenstra Job Title: Communication Sys Des Engr Sr Stf Department: 6L01 Site Operations Collaboration and Reach-Back (SOCAR) Company:Integrated Systems & Solutions Business Address: Lockheed Martin IS&S PSC 45 Box 781 APO AE 09468 Home Address Address: Dawn Cottage Norwood, Harrogate HG3, 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, June 11, 2007 9:49 PM To: time-nuts@febo.com Subject: Re: [time-nuts] GPIB on the HP3586 In a message dated 11/06/2007 21:34:34 GMT Daylight Time, [EMAIL PROTECTED] writes: While I brought the (huge) maintenance manual with me, I seem to forgot the User manual for the Selective Level Meter HP-3586C. Would anyone have the HPIB programming string definitions available? On its way to your own email address, approx 2MB pdf. If you want the complete user manual pdf I can send that but it's about 14MB and I think you'll find it on Didier's webs site anyway. regards Nigel GM8PZR ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] GPIB on the HP3586
And, true to Murphies law, found what I needed at w5jgv.com, just AFTER I released the query below! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lester Veenstra M0YCM K1YCM Sent: Monday, June 11, 2007 9:33 PM To: 'Discussion of precise time and frequency measurement' Subject: [time-nuts] GPIB on the HP3586 While I brought the (huge) maintenance manual with me, I seem to forgot the User manual for the Selective Level Meter HP-3586C. Would anyone have the HPIB programming string definitions available? Thanks Les M0YCM K1YCM ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
[time-nuts] GPIB on the HP3586
While I brought the (huge) maintenance manual with me, I seem to forgot the User manual for the Selective Level Meter HP-3586C. Would anyone have the HPIB programming string definitions available? Thanks Les M0YCM K1YCM Full Name: Lester B Veenstra PSC 45 Box 781 APO AE 09468 Home Address Address: Dawn Cottage Norwood, Harrogate HG3, 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] H-Maser, but not on ebait...
Well I guess that is one traveling clock that will not sit on a first class seat next to Paul Wheeler! Full Name: Lester B Veenstra Job Title: Communication Sys Des Engr Sr Stf Department: 6L01 Site Operations Collaboration and Reach-Back (SOCAR) Company:Integrated Systems & Solutions Business Address: Lockheed Martin IS&S PSC 45 Box 781 APO AE 09468 Home Address Address: Dawn Cottage Norwood, Harrogate HG3, 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott Lacy Sent: Saturday, June 09, 2007 10:09 PM To: time-nuts@febo.com Subject: [time-nuts] H-Maser, but not on ebait... Since we're having a lively afternoon (or midnight for our Aussie members) on Time-nuts, and talking about buying and selling gear anyway, I think this is a good time to mention something I've been putting off for too long: An Oscilloquartz H-maser. For sale. I've put some details, pictures and the manuals here: http://www.arclightindustries.com/efos.html That page will get some more data over the next few days, and I'm sure there will be tons of questions to answer. I hope John will forgive the commercial post, but I figured my fellow Time-nuts would want to be the first to know about a loose maser. Thanks, Scott ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Software Sawtooth correction prerequisites?
Will do Likes like an interesting product line Full Name: Lester B Veenstra Job Title: Communication Sys Des Engr Sr Stf Department: 6L01 Site Operations Collaboration and Reach-Back (SOCAR) Company:Integrated Systems & Solutions Business Address: Lockheed Martin IS&S PSC 45 Box 781 APO AE 09468 Home Address Address: Dawn Cottage Norwood, Harrogate HG3, 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dr Bruce Griffiths Sent: Saturday, May 12, 2007 10:12 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Software Sawtooth correction prerequisites? Lester I have no idea you'll need to contact Acam direct. http://www.acam.de Bruce Lester Veenstra M0YCM K1YCM wrote: > What is the cost of the two channel pci system, if you happen to have the > price in hand. If not, I will ask direct. > > Full Name: Lester B Veenstra > Job Title: Communication Sys Des Engr Sr Stf > Department: 6L01 Site Operations Collaboration and Reach-Back (SOCAR) > Company:Integrated Systems & Solutions > > Business Address: > > Lockheed Martin IS&S > PSC 45 Box 781 > APO AE 09468 > > Home Address Address: > > Dawn Cottage > Norwood, Harrogate > HG3, 1SD UK > > Telephones: > > Office 940-6456 > > Office +44-(0)1423-846-385 > > Home: +44-(0)1943-880-963 > > UK Cell +44-(0)7716-298-224 > > US Cell +1-240-425-7335 > > Jamaica+1-876-352-7504 > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Dr Bruce Griffiths > Sent: Saturday, May 12, 2007 7:00 AM > To: Tom Van Baak; Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Software Sawtooth correction prerequisites? > > Tom Van Baak wrote: > >>> Define cheap. >>> You can already get essentially single chip TICs with a resolution (and >>> accuracy) better than 100ps for around 100 Euros or so. >>> >>> >> Has anyone in the group tried one of these? I would very >> much like to see the results. >> >> > > All except Xavier seem to have shied away from obtaining these on cost > grounds and the need to layout a 4 layer PCB. > Although the vendor does offer an evaluation system (External box plus > card plugs into PC with fat multiconductor SCSI type (but not SCSI > signalling)cable connecting the two), too expensive for general use but > perhaps useful for performance evaluation. > The above price was for an earlier version the later reduced cost higher > resolution version (range 5 nanosec - 4millisec) should be cheaper. > The range can easily be extended to years if required (using CPLD > counters (or even a PIC with built in counters - eg PIC18F4550) + > software+ 74AC164). > > Bruce > ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Software Sawtooth correction prerequisites?
What is the cost of the two channel pci system, if you happen to have the price in hand. If not, I will ask direct. Full Name: Lester B Veenstra Job Title: Communication Sys Des Engr Sr Stf Department: 6L01 Site Operations Collaboration and Reach-Back (SOCAR) Company:Integrated Systems & Solutions Business Address: Lockheed Martin IS&S PSC 45 Box 781 APO AE 09468 Home Address Address: Dawn Cottage Norwood, Harrogate HG3, 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dr Bruce Griffiths Sent: Saturday, May 12, 2007 7:00 AM To: Tom Van Baak; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Software Sawtooth correction prerequisites? Tom Van Baak wrote: >> Define cheap. >> You can already get essentially single chip TICs with a resolution (and >> accuracy) better than 100ps for around 100 Euros or so. >> > > Has anyone in the group tried one of these? I would very > much like to see the results. > All except Xavier seem to have shied away from obtaining these on cost grounds and the need to layout a 4 layer PCB. Although the vendor does offer an evaluation system (External box plus card plugs into PC with fat multiconductor SCSI type (but not SCSI signalling)cable connecting the two), too expensive for general use but perhaps useful for performance evaluation. The above price was for an earlier version the later reduced cost higher resolution version (range 5 nanosec - 4millisec) should be cheaper. The range can easily be extended to years if required (using CPLD counters (or even a PIC with built in counters - eg PIC18F4550) + software+ 74AC164). >> However the optimal solution doesn't use a TIC at all, just use a good >> GPS receiver that makes the carrier phase observables available. >> Quite a few of the older receivers used to make the carrier phase data >> available. >> > > Many of the Oncore VP's did this, but I don't know of > anyone, amateur or commercial, that built a GPSDO > using that feature. That makes me wonder if carrier > phase observables alone is not enough. > You also need code phase measurements as a sanity check, to determine the ionospheric delay, and to initialise the control loop. To obtain maximum performance you also need to know the GPS antenna location accurately. This may take several days to establish using code phase SV transit data. >> The catch is that the GPS receiver local oscillator must be phase locked >> to the OCXO. >> Some receivers use a 10MHz crystal oscillator in which case this can be >> removed and replaced with an external 10MHz signal derived from the OCXO >> being disciplined. >> > > Right, this is the key. Do you know any OEM receivers that > allow an external 5/10/20 MHz? I know my Z12T does (but that > is far from an OEM receiver). > > The Novatel SuperstarII receivers use an on board Rakon 10MHz TCXO (made a little (120km) to the North of me) local oscillator which can be disconnected with relatively little surgery and replaced with a piece of thin coax and a connector. However the required amplitude is relatively small - easily fixed with a pair of resistors - typically the output from the onboard TCXO itself has to be attenuated. Magnus acquired some of these cheaply, however even the new price isn't too steep. UNSW has used these receivers in geodetic survey/monitoring applications. The code phase field data from some of these exhibits encouraging stability (about 5 -10x better than the oscillator specs) when averaged over a few seconds even with the standard TCXO. If you want to roll your own GPS receiver the MITEL/ZARLINK chipsets use a 10MHz reference. >> Unfortunately there are as yet no relatively inexpensive off the shelf >> implementations of the GPS carrier phase discipling technique available. >> The calculations involved for maximum performance are somewhat complex, >> however not too much computing horsepower should be required. >> > > The QL carrier phase GPSDO is unique and probably not > cost-effective. Sounds like it's a custom single-channel GPS > receiver designed from the ground up. If there were an easier > way surely someone would have done it in the past ten years. > > Yes $30,000 Euros or so is a little steep. Depends what you mean by easy. Vested interest in an existing receiver can lead to inertia. The other players seem wedded to using PPS disciplining, possibly because of all the existing equipment using it. Investigations into using multichannel carrier phase disciplining have been somewhat sporadic. Although single channel receivers employing carrier phase measurement have been successfully deploye
Re: [time-nuts] 10MHz to 32MHz?
And if the 32 mhz source is a sealed unit, I suspect you will find that once you mechanically set it as close as practical, that varying the Vcc will allow you to use it as a narrow VCO. Full Name: Lester B Veenstra Job Title: Communication Sys Des Engr Sr Stf Department: 6L01 Site Operations Collaboration and Reach-Back (SOCAR) Company:Integrated Systems & Solutions Business Address: Lockheed Martin IS&S PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Magnus Danielson Sent: Saturday, April 21, 2007 7:55 PM To: time-nuts@febo.com; [EMAIL PROTECTED] Subject: Re: [time-nuts] 10MHz to 32MHz? From: "Bruce Lane" <[EMAIL PROTECTED]> Subject: [time-nuts] 10MHz to 32MHz? Date: Sat, 21 Apr 2007 11:26:23 -0700 Message-ID: <[EMAIL PROTECTED]> > Fellow time-clockers, > > I have an interesting (if a bit annoying) situation. I would like to use one of my existing GPS standards to improve stability on one of my HF transceivers. The problem is that said transceiver, for reasons unknown to me, uses a 32MHz reference oscillator. > > The highest GPS-lock frequency I have available is 10MHz. Suggestions for using this to produce a 32MHz reference would be welcome, as my skills for this kind of design are a bit rusty. The most straight-forward fashion is naturally to lock it through a PLL. Highest common comparator frequency is 2 MHz, so divide 10 MHz by 5 and 32 by 16, compare with SR-gate, use either a passive lag or better yeat, and active loop. Three digital ICs and an op-amp. If the 32 MHz reference is a crystal then hooking into the caps for a varicap is easy enought for most hams. Cheers, Magnus ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Delay through GPS antenna splitter/amplifier -- ananswer, and a question
This is, incidentally, why isolators should be used on these runs. This does create a problem with LNAs that are DC powered via coax, however the reality is that many antennas and receivers do not have that great a match to the coax impedance and could benefit from the clean up of an isolator. (however as magnetic devices, I wonder about the delay stability of isolators as a function of temperature) And while on the obsessive kick, if using splitters, unused ports must be terminated. Group delay measurements of an RF transmission system can reveal a lot of problems that simple loss and return loss will not catch. Lester B Veenstra M0YCM K1YCM M0YCM/6Y5 K1YCM/6Y5 Mail Address: Lester Veenstra Dawn Cottage Norwood, Harrogate HG3 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell:+44-(0)7716-298-224 -Original Message- John .. minimise the effects of residual mismatches at either end of the cable. Bruce ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] External clock for Analog to DigitalConverter inGPS Rx front-end
Another tried and true, particularly for those of use who collect old modular amps from junque s a noise source made from nothing than the gain of a series of amplifiers strung together. Then amplify the KTB input noise of the first unit until you have what you need. Bandlimited to the amps BW, but it's cheep! Lester B Veenstra M0YCM K1YCM M0YCM/6Y5 K1YCM/6Y5 Mail Address: Lester Veenstra Dawn Cottage Norwood, Harrogate HG3 1SD UK Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell:+44-(0)7716-298-224 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bilal Amin Sent: Saturday, March 03, 2007 1:29 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] External clock for Analog to DigitalConverter inGPS Rx front-end Thank you Bruce, this is indeed very useful. Regards Bilal - Original Message - From: "Dr Bruce Griffiths" <[EMAIL PROTECTED]> To: "Discussion of precise time and frequency measurement" Sent: Saturday, March 03, 2007 5:10 PM Subject: Re: [time-nuts] External clock for Analog to Digital Converter inGPS Rx front-end > Bilal Amin wrote: >>> Hi John and Bruce, >>> >>> Thank you for your ideas. Now I have a much better picture for the >>> experiment using the comparator. Now, my only concern is a noise >>> generator. >>> I have searched and found out that all the commercially available now >>> generators are very expensive and some what out of my price range. >>> What would you guys suggest for a noise generator? Do you think >>> generating >>> noise using a zener diode circuit is a good idea? Or any cheap noise >>> generators are available in the market. Any one has any experience? As I >>> am >>> working in 8Ms/s zone, therefore the noise generator should be of high >>> specs. >>> I have a signal generator (Agilent Tech. 8648A). I can use the PM option >>> in >>> this signal generator to get the results, but again the only problem is >>> a >>> noise generator which I can use at the modulating input of the signal >>> generator to modulate the RF signal. >>> >>> Cheers >>> >>> Bilal >>> >>> > Bilal > > You may also want to look at: > > http://pdfserv.maxim-ic.com/en/an/AN3469.pdf > > Bruce > > ___ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] OT: transfer of 3 GHz via fiber optic
Also know as Double Sideband un suppressed or in other words, good old AM Lester B Veenstra M0YCM K1YCM K1YCM/6Y5 Mail Address: Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > > Didier The usual technique is to use an acoustoptic modulator to produce an output with frequency componenets at fl and fl + 3GHz. Bruce ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] HP10544a Technical Info needed
QSL Lester B Veenstra M0YCM K1YCM K1YCM/6Y5 Mail Address: Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dr Bruce Griffiths Sent: Saturday, February 03, 2007 11:38 AM To: [EMAIL PROTECTED]; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] HP10544a Technical Info needed Les Lester Veenstra M0YCM wrote: > Excellent, Thanks > Les > > Lester B Veenstra > M0YCM K1YCM K1YCM/6Y5 > > Mail Address: > > Lester Veenstra > PSC 45 Box 781 > APO AE 09468 > > Telephones: > > Office 940-6456 > Office +44-(0)1423-846-385 > Home: +44-(0)1943-880-963 > UK Cell +44-(0)7716-298-224 > > Further correction 1826-0072 is actually a uA208 from Fairchild. so 1826-0059 could still be an LM208 -different vendor. Bruce ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts <> ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] HP10544a Technical Info needed
Excellent, Thanks Les Lester B Veenstra M0YCM K1YCM K1YCM/6Y5 Mail Address: Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dr Bruce Griffiths Sent: Saturday, February 03, 2007 10:35 AM To: [EMAIL PROTECTED]; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] HP10544a Technical Info needed Lester Veenstra M0YCM wrote: > I have a bad 10544 (received from AST) that I am planning to look into. > No 10 MHz out and very low 12 VDC current. > Has anyone the translation from HP PN to Commercial equiv for the > semiconductors ? > Thanks > Les > > Lester B Veenstra > M0YCM K1YCM K1YCM/6Y5 > > Mail Address: > > Lester Veenstra > PSC 45 Box 781 > APO AE 09468 > > Telephones: > > Office 940-6456 > Office +44-(0)1423-846-385 > Home: +44-(0)1943-880-963 > UK Cell +44-(0)7716-298-224 > > Lester CORRECTIONS a 1901-0535 is a schottky RF detector diode - see 10811 parts list. 1826-0059 is not an LM208 which has a part no 1826-0072. 01-40 = 1901-0040 = 1N4148 Bruce ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] HP10544a Technical Info needed
I have a bad 10544 (received from AST) that I am planning to look into. No 10 MHz out and very low 12 VDC current. Has anyone the translation from HP PN to Commercial equiv for the semiconductors ? Thanks Les Lester B Veenstra M0YCM K1YCM K1YCM/6Y5 Mail Address: Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Van Baak (mobile) Sent: Saturday, February 03, 2007 4:11 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] HP10544a Technical Info needed > Hi Howard, > > Please find attached a schematic of the 10544, hope it helps in anyway. Wonder where you got that one ;-) http://www.leapsecond.com/museum/10544/ I scanned and posted that in 2001; but didn't check the manual against an actual 10544 oscillator. Should be close enough for a repair, though. /tvb http://www.LeapSecond.com ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Adapter Boards
It is: The 2nd style is wider than the oscillator and has a 10K pot along with two adjustable caps anduses a voltage regulator mounted on the rear standoff, and is usually what you see on eBay. Lester B Veenstra M0YCM K1YCM K1YCM/6Y5 Mail Address: Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jason Rabel Sent: Saturday, December 30, 2006 4:31 PM To: [EMAIL PROTECTED]; 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Adapter Boards Can you clarify your question a little? There are two different styles, one that is the width of the oscillator (approx) and has no adjustments, the only adjustment that can be made is on the oscillator itself. The 2nd style is wider than the oscillator and has a 10K pot along with two adjustable caps. Of the 2nd style, there are 3 revisions that I know of. The A & B revision use a power resistor, and the ones I got had a big burn spot from the heat (and they also did not work). The newest revision (I guess C) uses a voltage regulator mounted on the rear standoff, and is usually what you see on eBay. These adapter boards are required in some older HP equipment, like the 5328A counter. Jason > Can anyone identify the adapter board HP 05328-20027 used > with an 10544A > osc. ? > Lester B Veenstra > M0YCM K1YCM K1YCM/6Y5 ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
[time-nuts] Adapter Boards
Can anyone identify the adapter board HP 05328-20027 used with an 10544A osc. ? Lester B Veenstra M0YCM K1YCM K1YCM/6Y5 Mail Address: Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
[time-nuts] New acquisition
Have ebay acquired a used HP10544A attached to a PC card HP 05328-20027. Plan to use it as an osc upgrade for a lest than "perfect" HP105B. Anyone have schematic, pinouts, function, etc of the card? Thanks LesK1YCM M0YCM M0YCM/6Y5 Pictures available direct on request PSC 45 Box 781 APO AE 09468 Dawn Cottage Norwood Harrogate HG3 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Vendors of time sync hardware
Timing Solutions, Boulder CO Full Name: Lester B Veenstra Job Title: Communication Sys Des Engr Sr Stf Department: 6L01 Site Operations Collaboration and Reach-Back (SOCAR) Company:Integrated Systems & Solutions Business Address: Lockheed Martin IS&S PSC 45 Box 781 APO AE 09468 Dawn Cottage Norwood Harrogate HG3 1SD UK Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 US Cell +1-240-425-7335 Jamaica+1-876-352-7504 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jared Morrisen Sent: Wednesday, November 29, 2006 3:17 PM To: time-nuts@febo.com Subject: [time-nuts] Vendors of time sync hardware Hola, For an RFP, I need 5 vendors of time sync hardware. I found the following: Spectracom - www.spectracomcorp.com Symmetricom - www.symmetricom.com EndRun Technologies - www.endruntechnologies.com Can anyone provide some others? Do you know of a full list of ntp based hardware devices? Thank you much, Jared ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Historical HP quartz oscillator manuals available
Stored but not scanned does not help the objective Time for plan B? Lester B Veenstra M0YCM K1YCM K1YCM/6Y5 Mail Address: Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Richard (Rick) Karlquist Sent: Wednesday, September 27, 2006 3:41 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Historical HP quartz oscillator manuals available I talked to the Agilent Library, and they said that if I donate these manuals, they will be stored but not scanned at this time. I thought I would ask here if there is any interest in any of these manuals. Perhaps I can scan a few myself if there is sufficient interest. Rick Karlquist N6RK > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of Richard (Rick) Karlquist > Sent: Saturday, September 23, 2006 5:04 PM > To: time-nuts@febo.com > Subject: [time-nuts] Historical HP quartz oscillator manuals available > > > I have the following manuals (original paper version): > > HP 100E > HP 101A > HP 103A > HP 104AR > HP 107AR/BR > HP 115CR > HP 117A > > Does anyone know if these have already been scanned > and made available on the web? If not, I plan to > see if the Agilent Library wants to scan them. They > basically have a program to scan manuals but I don't > know if they have an age cutoff. These are only > of historical interest and have no utilitarian value. > For example, the HP 100E, circa 1960, uses vacuum tubes, > including the "phantastron" circuit, which has no > counterpart in solid state. > > If anyone is interested in owning any of the original paper > manuals, let me know what you are interested in. > I need to dispose of these one way or another. > > Rick Karlquist N6RK > Agilent Technologies > > ___ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Historical HP quartz oscillator manuals available
Subject: RE: [time-nuts] Historical HP quartz oscillator manuals available Since Agilent has been proactive protecting the copyright of old manuals, I think the right course would see if they will put them up on their site. I am sure there is a time nut willing to hold the paper copies. Lester B Veenstra M0YCM K1YCM K1YCM/6Y5 Mail Address: Lester Veenstra PSC 45 Box 781 APO AE 09468 Telephones: Office 940-6456 Office +44-(0)1423-846-385 Home: +44-(0)1943-880-963 UK Cell +44-(0)7716-298-224 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Richard (Rick) Karlquist Sent: Sunday, September 24, 2006 1:04 AM To: time-nuts@febo.com Subject: [time-nuts] Historical HP quartz oscillator manuals available I have the following manuals (original paper version): HP 100E HP 101A HP 103A HP 104AR HP 107AR/BR HP 115CR HP 117A Does anyone know if these have already been scanned and made available on the web? If not, I plan to see if the Agilent Library wants to scan them. They basically have a program to scan manuals but I don't know if they have an age cutoff. These are only of historical interest and have no utilitarian value. For example, the HP 100E, circa 1960, uses vacuum tubes, including the "phantastron" circuit, which has no counterpart in solid state. If anyone is interested in owning any of the original paper manuals, let me know what you are interested in. I need to dispose of these one way or another. Rick Karlquist N6RK Agilent Technologies ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
