Re: [time-nuts] Digital Clock kit - no Integrated circuits!
I've actually got an EPUT with the prescaler good to 1GHz. Complete with manuals. Too many BA's, not enough time.. Bob Camp wrote: Hi I *think* I still have a case of gas filled dual triodes sitting in the shed. The Beckman EPUT meter used them in the decade divider / display sections. I don't have any of the meters any more, but I do have the spare parts for them. Go figure They actually make pretty good low speed logic gates. Tube based clock driving neon bulbs for the display anybody? Bob On Jan 9, 2010, at 10:30 AM, Lux, Jim (337C) wrote: On 1/9/10 12:09 AM, "Steve Rooke" wrote: 2010/1/9 Tom Clifton : http://transistorclock.com/ has a very interesting (though a bit expensive) kit for sale. A 10" x 11" circuit board sporting nearly 200 transistors and 600 diodes to drive six seven-segment displays. Suitable for framing... As delivered runs on 60hz but there is a note about conversion to 50hz mains. You can buy a bare board, just the components or a full kit. You must see it to believe it! Bah humbug! Stupid modern day design, it'll never be any good, you need to use valves to make real gear :-) Well, they do make dual triodes which are convenient for making those Eccles-Jordan circuits. I can't help wondering if you go do better than the 4 bit counter:4-10 decoder:10-7 decoder. Yeah, simple diode matrices in an AOI configuration are easy, but surely a bit of work (as in digging up archaic designs) could find a "lower part count" approach. Time to use that Karnaugh map. ___ 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] Digital Clock kit - no Integrated circuits!
The real touch of class is the zip tie holding the cap in place! gandal...@aol.com wrote: In a message dated 09/01/2010 01:08:06 GMT Standard Time, kc0...@yahoo.com writes: http://transistorclock.com/ has a very interesting (though a bit expensive) kit for sale. A 10" x 11" circuit board sporting nearly 200 transistors and 600 diodes to drive six seven-segment displays. Suitable for framing... As delivered runs on 60hz but there is a note about conversion to 50hz mains. You can buy a bare board, just the components or a full kit. You must see it to believe it! I see it Unfortunately therefore I have to believe it Even more unfortunately, that still doesn't stop it being useless expensive crap:-( ___ 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] HP 5372a error 160
Francesco, I saw in the troubleshooting section that a weak internal battery could be the cause. HA!!! Just found the procedure in the manual!! Looks deceptively easy. Thanks, Norm n3ykf Francesco Ledda wrote: You need to replace the internal battery (3.6) and calibrate the inputs; the procedure is simple. -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on Behalf Of Norman J McSweyn Sent: Friday, September 04, 2009 8:16 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] HP 5372a error 160 Hi all!! Bid on and got an HP 5372a. Supposed to be tested, working. Powers up to error 160 out of sensitivity calibration. Did download the svc man from Agilent. Spent a few minutes looking through the manual. Not sure what to make of it. It's not obvious whether a complete cal needs to be done. Questions, comments cheerfully received. Will be on a boat trip for our holiday (US) from 10z Saturday until Tuesday 10z or so. Thanks, Norm n3ykf ___ 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] HP 5372a error 160
Hi all!! Bid on and got an HP 5372a. Supposed to be tested, working. Powers up to error 160 out of sensitivity calibration. Did download the svc man from Agilent. Spent a few minutes looking through the manual. Not sure what to make of it. It's not obvious whether a complete cal needs to be done. Questions, comments cheerfully received. Will be on a boat trip for our holiday (US) from 10z Saturday until Tuesday 10z or so. Thanks, Norm n3ykf ___ 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] time insanity!
Found this. Nice way to kill time. http://fora.tv/2009/03/19/Ian_Morison_Its_About_Time#fullprogram 73 de Norm n3ykf ___ 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] EM-406a
Gentlemen: Anyone playing with this particular part? I'm having trouble getting it to respond to commands. 99.9% sure that the hardware and software tools are doing their job properly. Do I have to tell the board to go to User1 mode in order to get it to respond to commands? I'd like to get $GPGSV once per second. Shouldn't be a problem. Have generated the checksum. Ideas? Questions? Comments? Thanks, Norm n3ykf ___ 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] TNC connectors
David, I used a piece of pvc conduit to mount the antenna. It fits in the vic-100's mounting skirt. If it does not have a mounting skirt, perhaps use a flange and drill the appropriate holes, apply RTV (or your favorite sealant!). Norm (The divider board is working like a charm!! Even impressed the heck out of my new GF!!! GKK!!!) David C. Partridge wrote: Hi Dave, The Solartron 7081 is very happy and so am I :-). Thanks yet again for all your help. Re: different sized centre pins - I know that's true of "N" type connectors, - you really don't want to push an N type male 50R into an N type female 75R connector. However I'm pretty sure that it doesn't apply to BNC - just wasn't sure about TNC. Dave ___ 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] wanted: x-y display
Hi, I'm looking for an x-y display for a scope clock project. Needs to be a working unit. Cash or trade. Thanks, Norm n3ykf ___ 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] Datum/Trimble 9390
Corby Dawson wrote: > We use the Trimble 9390 where I work. > > Around the Y2K period we received new EPROM sets to put into the units. > > I checked yesterday and they are displaying the correct day and year. > > Let me see if I can find a spare set of EPROMS to download. > > Corby Dawson > > Click to compare mortgage rates. No obligation, quick and easy. > http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTIsOciybYp6dYJyzaPzRJYruNwXO5b3bh5IyhIHQW5QXYxE9p3k8w/ > > ___ > 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. > Corby, You absolutely rock!! Norm (who has one 9390 that has the wonky week bug!) ___ 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] Home made GPS disciplined atomic clock
Google df6jb plotter. It's great! 73 de Norm n3ykf ___ 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] m12+t leap second snippet
Thanks to all who have helped me through my coding problems. 12 31 08 23 59 56 42 04.8083 N 075 54.8975 W 00274.9 000.2 236.6 0 2 02.0 08 00 008 12 31 08 23 59 57 42 04.8083 N 075 54.8975 W 00274.9 000.2 228.8 0 2 02.0 08 00 008 12 31 08 23 59 58 42 04.8083 N 075 54.8975 W 00274.9 000.2 251.5 0 2 02.0 08 00 004 12 31 08 23 59 59 42 04.8083 N 075 54.8975 W 00274.8 000.1 240.3 0 2 02.0 08 00 001 12 31 08 23 59 60 42 04.8083 N 075 54.8975 W 00274.9 000.2 239.4 0 2 02.0 08 00 000 01 01 09 00 00 00 42 04.8083 N 075 54.8975 W 00274.9 000.2 231.3 0 2 02.0 08 00 004 01 01 09 00 00 01 42 04.8083 N 075 54.8975 W 00275.0 000.2 241.6 0 2 02.0 08 00 015 HNY ES HH de Norm n3ykf ___ 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] altitude difference between two gps
James R. Gorr wrote: > Yes. The pending leap second has me very scared. It is the Y2k bug of 2008. > :-) > > Sorry, that is a tilde, not a negative sign. Meant as "approximately" 791 > meters, although I may be using it completely wrong. The real value (mean > average) is 790.83 meters for the Sure Electronics GPS. > > Sorry for the confusion. > > --- On Sat, 12/27/08, Richard W. Solomon wrote: > > From: Richard W. Solomon > Subject: Re: [time-nuts] altitude difference between two gps > To: "Discussion of precise time and frequency measurement" > > Date: Saturday, December 27, 2008, 7:24 PM > > -800 meters ?? > Live in a mine ?? > How can that be ? > > 73, Dick, W1KSZ > > -Original Message- >> From: "James R. Gorr" >> Sent: Dec 27, 2008 9:26 PM >> To: time-nuts@febo.com >> Subject: [time-nuts] altitude difference between two gps >> >> Hello everyone! >> >> I have a tbolt that I am monitoring with tboltmon.exe and some off-brand 12 >> channel GPS (I bought from Sure Electronics on eBay) that I am monitoring >> with VisualGPS. Both are fed from the same GPS antenna through a >> symmetricom splitter. There is a 30 meter difference in the altitude >> readings between the two. My tbolt says my altitude (after a self-survey) >> is ~761 meters and the 12 channel Sure Electronics GPS says my altitude is >> ~791 meters after 7,500+ readings. I took my hand held Garmin 12XL outside >> and it says my altitude is ~790 meters at street level. >> >> Anyone have an idea why my tbolt might be reading different from the other >> two devices? I am assuming the tbolt is reading low. >> >> Jamie >> >> >> >> >> ___ >> 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. > My m12+t and Thunderbolt were doing the same thing (non agreement in height). They do share the same antenna. By setting the antenna mask angle to the same value on both gps units, the difference was less than one meter. Norm n3ykf ___ 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] Lady Heather's Disciplined Oscillator (Thunderbolt) Software
Mark Sims wrote: > Lady Heather, Mistress of the Disciplined Oscillator, kidnapped me and > locked me in Her Dungeon 'o Doom. She forced me a whip point to write Her a > controller program for Her Thunderbolt. I had no choice but to comply. When > She stepped out to buy some Whip Wax, I escaped with Her precious code. > Lady Heather lives on the outskirts of the Land of the Obsolete and the code > is written in Quick-C to run under DOS or WIN98, etc that allow direct access > to the hardware. Default video hardware required is a VGA type controller > with VESA compatible BIOS. It should be easy to modify for more modern > environments. > Her program allows control over most Thunderbolt parameters and graphs the > important ones. It also supports logging data to a file. It also calculates > and graphs ADEV and OADEV of the REPORTED oscillator ppb and PPS values. > _ > It’s the same Hotmail®. If by “same” you mean up to 70% faster. > http://windowslive.com/online/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_broad1_122008 > > > > > ___ > 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. Who cares about T and F! More about Lady Heather, please! ___ 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] M12+T more confusion
Chris Kuethe wrote: > On Fri, Nov 21, 2008 at 3:06 PM, Tom Van Baak <[EMAIL PROTECTED]> wrote: >> You are enabling output messages, right? Sounds like the >> order in which you individually *enable* one or more messages >> is unrelated to the order in which, once a second(*), all selected >> messages are *output*. I've never confirmed if they are output >> alphabetically or by size or priority or what. Does someone know >> for sure? Or does it matter? > > i've not seen a gps yet that doesn't act like there's a big, > fixed-order list against which the enabled output messages are checked > once per reporting cycle. it's not impossible to dynamically schedule > a specific order of messages at a certain rate by building an array of > function calls, but that sounds like more work... the first way can be > done with a single char comparison per message. Chris, I'm not much of a programmer **YET**. The approach you suggest is one that I would need to take if I was creating a bulletproof app. Using the simple method that I've employed definitely isn't. Don't get much time to play with this stuff. When I do, I try to get something to work. It's like anything else. The more you play with it, the less intimidating and more familiar it is, hence, more comfortable. > > some messages are certainly more expensive to generate (GSV vs GLL) > and are probably less interesting - so long has there is a good fix > and a navigation solution the average user probably won't care too > much about satellite locations. And the fix data will be more relevant > if you can output location immediately after it's calculated, rather > than delaying it 200ms for a satellite status report. Some receivers > do have certain message types triggered at set time - I hear SiRF's > ZDA message is supposed to be sync'd with the top of the second. > > ___ 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] M12+T more confusion
Tom Van Baak wrote: >> Gentlemen: >> Why would the M12+T swap the order of messages? >> >> I write @@Hn and @@Eq in that order to the board and it gives it back to >> me in reverse order. > > What parameter(s) are you passing the @@Hn and @@Eq > and how quickly are you sending them? Page 31 talks about > this. Tom, Each message is written so as to get the board to output once per second. The program is structured such that it writes once, then drops down and loops , reading the buffer (I've disabled the termination character) when XX bytes have accumulated. > >> Tried @@Cf then resending the messages. Still the same. Then did it AND >> swapped the order of the messages. Still the same. > > You are enabling output messages, right? Sounds like the > order in which you individually *enable* one or more messages > is unrelated to the order in which, once a second(*), all selected > messages are *output*. I've never confirmed if they are output > alphabetically or by size or priority or what. Does someone know > for sure? Or does it matter? I'm suspecting this is the case. Need to power off the board to confirm that there's nothing being stored Just did that. Then reset the board with @@Cf. Then wrote @@Hn and @@Ha to the board in that order. Came back @@Ha then @@ Hn. If I use @@Hn and @@Eq (ascii position/time message) the same behaviour exists. > >> The manual says it's first in, first out regarding the serial buffer. > > Right, but the commands you are sending are merely enabling > commands. Send as many as you want in any order. You don't > see responses until the top of the next second. Just a guess, > though, since my M12+T is not available to confirm this. > I've played with an 8051. Do know a little about micros. Love trying to guess what's going on inside the little black box. >> I'm using Labview 8. >> >> Norm n3ykf > > > > ___ > 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] M12+T more confusion
Matt Osborn wrote: > I'm not a Labview expert, but I've seen Labview do that with messages > from other devices. Labview (or more likely, its programmer) has > issues dealing with threading issues. > > On Fri, 21 Nov 2008 00:58:36 -0500, Norman J McSweyn > <[EMAIL PROTECTED]> wrote: > >> Gentlemen: >> Why would the M12+T swap the order of messages? >> >> I write @@Hn and @@Eq in that order to the board and it gives it back to >> me in reverse order. >> >> Tried @@Cf then resending the messages. Still the same. Then did it AND >> swapped the order of the messages. Still the same. >> >> The manual says it's first in, first out regarding the serial buffer. >> >> I'm using Labview 8. >> >> Norm n3ykf >> >> >> ___ >> 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. > > -- kc0ukk at msosborn dot 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. > Matt, Could be a loose nut issue. However, using different messages as a test reveals that "first in first out" in different circumstances is the behaviour. The first part of this .vi just writes a string to the device. The second reads the buffer (and loops). After reading the buffer, I flush it. Just to make sure that I will get a clean read next iteration. Any pointers to troubleshooting will be greatly appreciated. Why would threading have anything to do with it? Just for giggles, I'll try not closing the Visa session until the .vi completes. 73 de Norm n3ykf ___ 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] TBolt in the house!
Give this a try! http://www.synergy-gps.com/images/stories/ShopTalk/disabling%20detection%20of%20microsoft%20ballpoint%20mouse.pdf The serial mouse issue drove me nuts for a while. Norm ___ 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] M12+T more confusion
Gentlemen: Why would the M12+T swap the order of messages? I write @@Hn and @@Eq in that order to the board and it gives it back to me in reverse order. Tried @@Cf then resending the messages. Still the same. Then did it AND swapped the order of the messages. Still the same. The manual says it's first in, first out regarding the serial buffer. I'm using Labview 8. Norm n3ykf ___ 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] labview, gpib, gps , logging data and lost data points!!
Ulrich, I'll give ezgpib a try! Unfortunately it won't be until Feb. My vacation is coming to an end. Have about 15 or 20 more hours budgeted to play with my toys. Have fixed the dropped data points, however. Used a timed sequence structure inside a for loop. The sequence structure has two frames. The first is the gpib routine. When that completes, Moto gps routine runs. Does it all in less than a second!!! How's that for precise timing? :-) The way the gps routine is set up, I'm polling the board, rather than setting it up to output every second. The m12+t user's guide says the buffer on the gps board is read every second. How is that true if I poll the board and get a response in 200ms? I'm presently polling the @@Hn. Think I'll add @@Gb and parse that. It'll give me the time stamp from the moto board. That along with the time stamp from the pc ought to get me more troubleshooting data at least. BTW: I'm flushing the serial buffer prior to reading it, so the data is in response to my query, rather than being data that is in response to the previous poll. tnx es 73 de Norm n3ykf ___ 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] labview, gpib, gps , logging data and lost data points!!
Ulrich, Does EZ-GPIB support visa? I know there was a thread a few months back kicking around the idea. The way the code is written now, I'm getting a response to @@Hn and parsing that. The idea was to save the data in text files and post-process with excel. Using the SRQ (and your idea as from the counter to generate a timing mark (to start the serial vi). This makes a lot of sense because I'll know that the data in the message will be for the next second (timestamped with this second) Based on my observations, the gpib routine takes 300ms to complete. It's just setup, trigger and read. I'll have to change this. There are two reasons for Labview. One is it's used quite a bit. The other is that the learing curve isn't quite as steep as C++ or VB. Either way, you've given much to think about! Thanks, Norm n3ykf ___ 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] labview, gpib, gps , logging data and lost data points!!
Hi! I'm logging data from an HP 5335a (using it as a time interval counter). and from a Motorola gps board ( text data). The test setup is comparing the 1pps output from the gps board to a divided (Thank you Dave Partridge!!) down 10 MHz from a Trimble Thunderbolt. The text data is used to post process the measurement from the 5335a reflecting the 1pps error (+/- 15E-9). The ver is LV 8 Code description: Each instrument has it's own VI and I run them simultaneously, collecting data and storing it in text files. The individual vi's are for loops with the iterations being the number of seconds that I want to log. Inside the loop is obviously a delay. The data is time stamped with seconds enabled. The problem is that somewhere in the 40k data points some (not all at the same time or sometimes one here and there or sometimes a bunch at once) aren't' collected. Solutions that I've tried: Using the 1pps to drive the parallel port so that I've got a hardware time hack. When I had both vi's in the same for loop things didn't go well. Not really sure what happened. Separated them. Works well now (except for the four or five lost data points in 40k) Varying the time constant. It's helped lots, but I really don't' want to lose any data. Have tried timed loops. Works fine with one process. Try to do two (gpib and serial for the gps) and it hangs the PC. Solution that I think would work: A way of firmly triggering a start event with labview. I've got a time server so windoze time (or lack of it!) is not an issue. (This may be an issue. Played around with it. Turning off polling made a difference.) I'm not really a programmer. Actually play with trains for a living. Will be on vacation for the next week. Not much to do so I'll be able to play lots. Thoughts, questions, comments and humor greatly appreciated. Thanks for your time, Norm n3ykf ___ 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 5335a opt 40 addendum
Magnus Danielson wrote: > Dear Norm, > > Norman J McSweyn wrote: >> Magnus, >> Thanks for the enlightenment! >> I modified the driver that NI has on their site. Works. Have been >> manually setting the trigger levels on the front panel. Now know how to >> use the -40 to do it. > > Great! Happy to help! > >> I'll further modify the driver in the AM. >> >> The manual I have doesn't have programming example 13. > > I haven't looked in detail, but I *think* the HP5335A manual on the HP > site is the same as I have, and then you should have all the details you > need. Magnus, Unfortunatly, the manual on Agilent's site is the one that I have, without the -40 addendum. > >> I take it that the instrument will trigger automatically when the >> conditions are met? > > Indeed it does. > >> I'm comparing the 1pps output from an M12+t to the divided down 10MHz >> out from a Thunderbolt. >> >> Next hurdle is to do something with the collected data. > > Way to go! > > You should learn to calculate Allan deviation and friends. Not to hard. > You should learn to estimate drift rate and subtract that from > measurements, since that is often ignored and the drift rate will form a > lower floor for longer measurement runs. This is an error which is > either canceled by locking or by software. > Data is time stamped and in a text file. One file is the TI data from the 5335a, the other is part of the @@Hn (with the sawtooth correction) message from the M12+T. In the interest of ensuring that I have a useful data set, I need to find a way to use Excel to check that no seconds have been skipped. Then post process the TI measurement to reflect the 1pps sawtooth. The next steps are a mystery. I drive locomotives for a living. This is a hobby!! Have been playing with math for a while now, so it's not a black art! Didier has a few pages on measurements and one with tvb's explanation of Allan deviation. This will be today's reading!!! Translating this into an Excel spreadsheet is the next hurdle. Comparing the two devices (Thunderbolt to M12+T) is rather banal. It's like comparing two types of apples together. Not much difference. However, it's a steep learning curve to get to this point. Any pointers are welcome! Thanks, Norm n3ykf > Cheers, > Magnus > > ___ > 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] HP 5335a opt 40 addendum
Magnus, Thanks for the enlightenment! I modified the driver that NI has on their site. Works. Have been manually setting the trigger levels on the front panel. Now know how to use the -40 to do it. I'll further modify the driver in the AM. The manual I have doesn't have programming example 13. I take it that the instrument will trigger automatically when the conditions are met? I'm comparing the 1pps output from an M12+t to the divided down 10MHz out from a Thunderbolt. Next hurdle is to do something with the collected data. Thanks, Norm ___ 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 5335a opt 40 addendum
Hi all! I'm having some trouble programming my 5335a. The manual that Agilent has doesn't cover opt 40. Have psyched out several of the codes that aren't in the manual. Using Labview 8, string that is sent is this: in,az1,bz1,ap0,bp0,fn2,trg (initialize) (chA impedance 50 ohms) (chB ") (chA preset off) (chB""") (time interval) (trigger measurement) CHANNEL A AND B IMPEDANCE COMMANDS ARE GUESSES The result is a hang with no measurement. If I forgo the impedance settings via gbib (doing it manually), I will get an error (front panel 1.0). Manual says this is an invalid HPIB alpha command sent. I will get a measurement. It takes 1.5 sec or so. I'm on vacation for the next two weeks. This am will be busy. Will be free 16Z give or take. Thanks, Norm n3ykf ___ 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] HP59309A HP-IB Digital Clock
Brian Kirby wrote: > Anybody have a manual/pdf for a HP 59309A HP-IB Digital Clock ? > > > Thanks - Brian - KD4FM > > ___ > 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. > ko4bb has one on his manuals page. Have fun! Norm n3ykf ___ 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] EZGPIB and Racal-Dana 1992 Counter
Ed, The student version of Labview is sometimes available on Epay cheep. Programming isn't one of my favorite activities! Norm n3ykf ___ 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] Needed: 58532A Antenna
Bruce, Have you checked ebay? Merry Christmas, Norm n3ykf ___ 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] another Ebay mixup
Apropos the conversation: Techrecovery sold me a 5370a that was toast. The customer service guy gave me a runaround for six weeks trying to first get another instrument and after I gave that up as a lost cause, then a refund. I had to threaten to get MasterCard involved. My MO is to give the feedback that is deserved. Screw my feedback rating. It hurts the seller more than the buyer. Happy ebaying! Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] HP59309A HP-IB Digital Clock Operating and ServiceManual
Ladies and gentlemen: The manual will be done this evening. (A big thank you to Colleen at the blueprint place!) I will send this to whomever would like a copy. Please drop me a note: normn3ykf AT stny.rr.com It will be done in two hours or so. 2340 utc now. Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] HP59309A HP-IB Digital Clock Operating and ServiceManual
Gentlemen, I'll get right on it. The large pages will have to be copied at a local blueprint store. Updates soon. Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] HP59309A HP-IB Digital Clock Operating and Service Manual
Martin, Stupid question. Is the front panel switch set to "ext"? I have a manual. I'd be willing to scan it if I somone would be willing to host it. Norm ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] How good are mechanical watches
I tried to use a watch sized e6b only once. (No autopilot!) Good for unusual attitude practice. Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
time-nuts@febo.com
Connie and the group: I think he's fishing. The auction has a three day term. One of the rules of ebay is you can list it for any price you'd like. No one has to buy it, though. I'm for sub $200 pricing. I don't need one either. Just another toy. Norm ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Thunderbolts available (maybe in quantity)
I'm in for at least one. Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] LUCENT RFTG-m-RB
Did anyone get the pinout for the "p1 24v" on the rfg-rb?? Mine has an LPRO. Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] Motorola Oncore GPS Interface Board?
Jason, Mouser p/n# 575-003201 has just enough length of leads to bend straight and solder into wire wrap headers. Though tedious, wire wrap makes prototyping fairly easy as well as inexpensive. Good luck, Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] HP 105B
Kinko's has a little problem with any document that has a copyright. Seems that they don't want to be sued. Been there, done that, had the argument. Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Re: [time-nuts] GPS Timing prob
Hi, Please include me in the "wants Widget" catagory! Just lit off my m12+t wednesday. Spent the last few days wondering just what the "sawtooth" furor was all about. Figuring out how to parse the delay from the @@HN string and diddling some sort of delay block sounds like fun. Love to lurk!! Norm n3ykf ___ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
