Re: [time-nuts] Fury OEM GPSDO board

2007-09-30 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 9/30/2007 19:04:47 Pacific Daylight Time, [EMAIL PROTECTED] writes: Will the Fury board work with a GPS receiver other than an M12? Would it make sense to even want to do that, or would the performance

Re: [time-nuts] Setting Rubidium to match GPS source

2007-09-28 Thread SAIDJACK
In a message dated 9/28/2007 02:07:08 Pacific Daylight Time, [EMAIL PROTECTED] writes: In this context, how stable is a GPSDO? If I used a Cesium for the sync input, how much fuzz would I see on a GPSDO output if I watched it wander back and forth for a day? Hi HMurray, depends on

Re: [time-nuts] Setting Rubidium to match GPS source

2007-09-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 9/28/2007 02:07:08 Pacific Daylight Time, [EMAIL PROTECTED] writes: In this context, how stable is a GPSDO? If I used a Cesium for the sync input, how much fuzz would I see on a GPSDO output if I

Re: [time-nuts] Setting Rubidium to match GPS source

2007-09-28 Thread SAIDJACK
In a message dated 9/28/2007 14:13:34 Pacific Daylight Time, [EMAIL PROTECTED] writes: I am interested about this OEM PCB with external OCXO, due to the reason I have 3 HP OCXO 10811 and the other one, so please put me on the waiting list. Hi Ernie, no problem, 10811's are great.

Re: [time-nuts] Setting Rubidium to match GPS source

2007-09-28 Thread SAIDJACK
In a message dated 9/28/2007 16:14:00 Pacific Daylight Time, [EMAIL PROTECTED] writes: Put me on the list. I'm interested in using it with LPRO-101 units. Scott Got it Scott, bye, Said ** See what's new at http://www.aol.com

Re: [time-nuts] Setting Rubidium to match GPS source

2007-09-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 9/28/2007 16:02:30 Pacific Daylight Time, [EMAIL PROTECTED] writes: Surely a height error of 2m leads to a timing error of about 6.6ns for a particular SV when that SV is directly overhead. When the SV

Re: [time-nuts] Setting Rubidium to match GPS source

2007-09-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 9/28/2007 17:28:22 Pacific Daylight Time, [EMAIL PROTECTED] writes: symmetric about the actual propagation delay, so in this case quoting the propagation delay error range perhaps imparts a pessimistic

Re: [time-nuts] Fwd: FAASafety.gov - General Information Terminationof 121.5...

2007-09-08 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 9/7/2007 17:17:20 Pacific Daylight Time, [EMAIL PROTECTED] writes: Truthfully, although as a private pilot upgrading to a more modern ELT beacon will eventually cost me money personally, the advantages

[time-nuts] Fwd: FAASafety.gov - General Information Termination of 121.5 MHz Beacons fo...

2007-09-07 Thread SAIDJACK
We are loosing the good-old analog services left and right: ** See what's new at http://www.aol.com ---BeginMessage--- FAASTeam - FAASafety.gov Termination of 121.5 MHz Beacons for Satellite Alerting is Coming Soon Notice Number: NOTC0981 On 1

Re: [time-nuts] GPSDO Question

2007-09-03 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 9/2/2007 13:16:32 Pacific Daylight Time, [EMAIL PROTECTED] writes: But for many frequency (e.g., transmitters) or time interval applications (e.g., frequency counters with finite gate times), I'd like

Re: [time-nuts] HP E1938 Web Page

2007-08-29 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/28/2007 22:23:57 Pacific Daylight Time, [EMAIL PROTECTED] writes: The fault was using a whacky fringe program on a fringe operating system and not the vector file. Do the same thing with a

Re: [time-nuts] HP E1938 Web Page

2007-08-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/28/2007 13:41:24 Pacific Daylight Time, [EMAIL PROTECTED] writes: Here's a link to the resulting png from hpgs _ftp://ftp.sonic.net/pub/users/rexa/E1938A/E1938_asdrawb.png_

Re: [time-nuts] HP E1938 Web Page

2007-08-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/28/2007 15:06:22 Pacific Daylight Time, [EMAIL PROTECTED] writes: PDF is ok, but hard to modify without spending money (like to split a schematic between multiple 8.5 x 11 pages for printing.)

Re: [time-nuts] HP E1938 Web Page

2007-08-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/28/2007 15:24:24 Pacific Daylight Time, [EMAIL PROTECTED] writes: Said, you have your timing screwed up here. PNG is definitly much newer than JPG. PNG is certainly standard and viewers are plentiful

Re: [time-nuts] HP E1938 Web Page

2007-08-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/28/2007 15:07:14 Pacific Daylight Time, [EMAIL PROTECTED] writes: will be happy to post a high resolution schematic when I locate the hpgl source. The schematic may be more comfortable to view by

Re: [time-nuts] HP E1938 Web Page

2007-08-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/28/2007 18:24:14 Pacific Daylight Time, [EMAIL PROTECTED] writes: Hi Didier, I just put the file on your server under the name E1938_asdrawb.pdf. I can easily save it to other formats as well if

Re: [time-nuts] HP E1938 Web Page

2007-08-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/28/2007 18:29:41 Pacific Daylight Time, [EMAIL PROTECTED] writes: have you opened a PNG lately in internet explorer? What a headache. Looks totally crappy, cannot zoom, cannot rotate etc. Not a

Re: [time-nuts] HP E1938 Web Page

2007-08-28 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/28/2007 19:53:06 Pacific Daylight Time, [EMAIL PROTECTED] writes: Anything else is a BAD idea. This certainly includes any path that results in JPEG of any sort, GIF, TIFF, or any other raster images

Re: [time-nuts] E1938A oscillator pinning

2007-08-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi there, I'll break the silence :) does anyone know about the EFC voltage compatibility range for the E1938A oscillator? Is it 0V to 5V, or -5V to +5V etc? How about the serial interfaces mentioned on Tom's website,

Re: [time-nuts] E1938A oscillator pinning

2007-08-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/27/2007 15:36:31 Pacific Daylight Time, [EMAIL PROTECTED] writes: There is also an EFC DAC (at least according to the osc.pdf paper on Rick's site) which suggests that it may be possible to

Re: [time-nuts] E1938A oscillator pinning

2007-08-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Bruce, I got it to work, it even locks to -5Hz within 5 minutes and the Amber LED goes off. The problem was that I had only applied GND to the shield of the connector. I added a wire to the EFC pin to EFC return, and

Re: [time-nuts] E1938A oscillator pinning

2007-08-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/27/2007 17:09:17 Pacific Daylight Time, [EMAIL PROTECTED] writes: Which E1938A version do you have? Hi Bruce, I've got the two-dac version with the connector bottom-mounted... bye, Said

Re: [time-nuts] E1938A oscillator pinning

2007-08-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/27/2007 17:56:45 Pacific Daylight Time, [EMAIL PROTECTED] writes: is ovenized provides a stable 2.5V to bias the diode if you do NOT want to use the EFC. *** Hi Kit, that's what I thought! I

Re: [time-nuts] E1938A oscillator pinning

2007-08-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/27/2007 17:29:05 Pacific Daylight Time, [EMAIL PROTECTED] writes: Seems one of those GND pins is actually a heater on type of pin. It might be the return for the heater so the IR drop in the high

Re: [time-nuts] E1938 phase noise

2007-08-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Rick, thanks so much for providing us with the info, and units! I got mine locked to GPS already as of 30 minutes ago. Said ** Get a sneak peek of the all-new AOL at

Re: [time-nuts] Fury Realhamradio listing

2007-08-22 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/22/2007 00:34:40 Pacific Daylight Time, [EMAIL PROTECTED] writes: BTW I opened the outer case of my MTI 260 OCXO and took some pictures. They are not very interesting but you can see the oven

Re: [time-nuts] New GPS backend comming

2007-08-22 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY FYI: _http://rfdesign.com/military_defense_electronics/news/gps_acquire_architectur e_0822/index.html_ (http://rfdesign.com/military_defense_electronics/news/gps_acquire_architecture_0822/index.html)

Re: [time-nuts] Sorry -- Wrong Allan

2007-08-21 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/21/2007 18:55:10 Pacific Daylight Time, [EMAIL PROTECTED] writes: Sorry, but Said picked the wrong Allan. The Allan (often wrongly spelled Allen) of ADEV fame is David W. Allan Sorry Tom, my

Re: [time-nuts] Fury Realhamradio listing

2007-08-20 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/20/2007 02:26:09 Pacific Daylight Time, [EMAIL PROTECTED] writes: A side effect of the 5 sample average is the opportunity to reduce the effective saw tooth error to 1/5 when the GPS LO is adjusted

Re: [time-nuts] Fury Realhamradio listing

2007-08-20 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 8/20/2007 12:47:02 Pacific Daylight Time, [EMAIL PROTECTED] writes: I could be wrong, but diurnal perturbations sound like antenna, location, or placement more than receiver. 12h or 24h period? Hi

Re: [time-nuts] great advice from the list

2007-08-14 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Jamie, hopefully you flagged this as a fraudulent listing to Ebay, they usually react quickly to these. bye, Said ** Get a sneak peek of the all-new AOL at

Re: [time-nuts] great advice from the list

2007-08-14 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Jamie, lot's of times the seller will bid on it himself, or through his cronies. See for example some high-end video or still cameras, a lot of them are offered for 1/2 the real value, and loads of folks with $0.01

Re: [time-nuts] HP 5370B low frequency modulation

2007-07-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/27/2007 06:23:33 Pacific Daylight Time, [EMAIL PROTECTED] writes: has the same strength and gas tightness of a cold weld. I've been fortunate, over the years, to have gotten hold of the right tools and dies

Re: [time-nuts] Building a DC Block Thingy....

2007-07-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/27/2007 13:10:12 Pacific Daylight Time, [EMAIL PROTECTED] writes: I actually did just that on one of the HP 8 port splitters that was on eBay a few months ago. It was configured for external DC but

Re: [time-nuts] Building a DC Block Thingy....

2007-07-27 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/27/2007 14:48:20 Pacific Daylight Time, [EMAIL PROTECTED] writes: With the external power, I still have a point of failure, but accidentally turning off a GPS without remembering the consequences isn't an

Re: [time-nuts] HP 5370B low frequency modulation

2007-07-26 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/26/2007 01:28:55 Pacific Daylight Time, [EMAIL PROTECTED] writes: sy cooling flange. On another board we glued a nut to the top of the BGA and hanged 50-70 kg of it and while the board was clearly bent the

Re: [time-nuts] Fury PR in GPS World... Part 2

2007-07-19 Thread SAIDJACK
In a message dated 7/19/2007 00:32:15 Pacific Daylight Time, [EMAIL PROTECTED] writes: Forgot to mention the low noise floor in the article!! Rob Kimberley Hi Rob, thanks for the pointer, even we didn't know we can reach 1155dBc/Hz! But check out our 1112 accuracy as well :) The guys

Re: [time-nuts] Fury PR in GPS World... Part 2

2007-07-19 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/19/2007 16:37:05 Pacific Daylight Time, [EMAIL PROTECTED] writes: Do I understand that a version is available that takes in an external 10MHz clock and internally disciplines that to GPS? Perhaps by DDS

Re: [time-nuts] Cs stability

2007-07-17 Thread SAIDJACK
In a message dated 7/16/2007 22:26:14 Pacific Daylight Time, [EMAIL PROTECTED] writes: I have a military OCXO sample (new product) that is supposed to be g-insensitive and even that one has about E-09 frequency shift per 90 degrees tilt. ... and you have not put a GPS diciplining

[time-nuts] HP5532A for free

2007-07-17 Thread SAIDJACK
Hi guys, I have a nice old Dixie tube HP5532A counter to give away that I picked up at a local recycling store. It powers up, and I can coax it to count. It needs a little cleaning, and some love. I figure someone collecting these would have good use for it. The first responder to this

Re: [time-nuts] HP5532A for free

2007-07-17 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/17/2007 18:32:51 Pacific Daylight Time, [EMAIL PROTECTED] writes: An old neon tube display for those South of the Mason-Dixon line? (vs. Nixie tube for those North.) Sorry, couldn't resist. As you can

Re: [time-nuts] time-nuts Digest, Vol 36, Issue 30

2007-07-17 Thread SAIDJACK
In a message dated 7/17/2007 20:37:33 Pacific Daylight Time, [EMAIL PROTECTED] writes: (Which store??) I'm interested. I'm in Los Gatos (Pollard Road). I can pick it up, but only through Friday of these week. List member (presumably an unmarried one)?

Re: [time-nuts] Cs stability

2007-07-16 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/16/2007 10:05:51 Pacific Daylight Time, [EMAIL PROTECTED] writes: My questions are: Are the Allan deviation specs also valid for all the environmental range, including shock and vibration, or only for lab

Re: [time-nuts] Wavecrest

2007-07-14 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] Hi Mike, some more usage tips: * The inputs are limited to about +-1.1V. So a good RF DC-blocker and attenuators really help. Be carefull, it's easy to exceed the input range. * You need to equal length SMA cables, and

Re: [time-nuts] Wavecrest

2007-07-14 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] Hi Mike, I just sent you the calibration documents, and the 2075 manual for comparison, they are rather big. Let me know if you received them. bye, Said ** Get a sneak peak of the all-new

Re: [time-nuts] HP 5370B jitter

2007-07-14 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/14/2007 16:45:19 Pacific Daylight Time, [EMAIL PROTECTED] writes: It's only purpose in life is to light a LED only visible to the servicing engineer (me in this case). Thus, making a small modification to

Re: [time-nuts] HP 5370B jitter

2007-07-13 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/13/2007 14:09:43 Pacific Daylight Time, [EMAIL PROTECTED] writes: probes), trimming up the 200 MHz multiplier chain. I shifted it down from 17 ps RMS to 3.9-4.0 ps RMS. Most of the trimmings where on the 200

Re: [time-nuts] Wavecrest

2007-07-13 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/13/2007 14:19:29 Pacific Daylight Time, [EMAIL PROTECTED] writes: ding I may look at before it gets here, or, software I may need. Any help will be greatly appreciated. - Thanks - Mike Hi Mike, congrats

Re: [time-nuts] NIST frequency doubler

2007-07-09 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/9/2007 01:59:46 Pacific Daylight Time, [EMAIL PROTECTED] writes: It just an RF bypass capacitor to ground. This circuit was embedded in a very small section of a much larger paper, so its difficult to

Re: [time-nuts] NIST frequency doubler

2007-07-09 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/9/2007 17:20:56 Pacific Daylight Time, [EMAIL PROTECTED] writes: The best turns ratio for the input transformer is best determined by a combination of simulation and testing to achieve the desired JFET

Re: [time-nuts] NIST frequency doubler

2007-07-09 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/9/2007 18:34:30 Pacific Daylight Time, [EMAIL PROTECTED] writes: Since JFETS have a relatively large spread in characteristics individual adjustments are required. Bruce Thanks again Bruce, I am not

Re: [time-nuts] Phase jumps of HP3325A synthesizer ???

2007-07-07 Thread SAIDJACK
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] In a message dated 7/7/2007 06:56:54 Pacific Daylight Time, [EMAIL PROTECTED] writes: Therefore the qustion: Has anyone of you an theoretical knowledge about the HP3325 that would explain this behaviour or has anyone of you

Re: [time-nuts] Ebay 5071A scam back again?

2007-06-26 Thread SAIDJACK
In a message dated 6/26/2007 09:55:42 Pacific Daylight Time, [EMAIL PROTECTED] writes: The tell tale signs are many, asking for Western Union Money orders, soliciting direct contact and so on. Looking at the seller's other items will give a clue often, if there are pages of lots of

[time-nuts] 5370B problem

2007-06-23 Thread SAIDJACK
Hi guys, has anyone seen phase jumps of the nanoseconds range without any affect to the picosecond display in the 5370B before? This problem has been appearing before I ever opened the unit, so it's not related to my calibration/mods. What is happening is really weird: Whenever the

Re: [time-nuts] 5370B problem

2007-06-23 Thread SAIDJACK
Hi, on the nanosecond-scale jumps I see, I attached an actual measurement in which you can clearly see the full-nanosecond jumps with only single-digit picosecond noise. The output rate is about 8 measurements per second: TI = 1.3823000E-08 TI = 1.3829000E-08 TI =

Re: [time-nuts] 5370B problem

2007-06-23 Thread SAIDJACK
In a message dated 6/23/2007 11:28:38 Pacific Daylight Time, [EMAIL PROTECTED] writes: 1 TI = (--- (N1 - N2) + (N1 - N2) + N0) * 5 ns 256 Thus each sample error on N1 or N2 would result in about 5.02 ns. I am starting to lean towards some processing error. Hi Magnus,

Re: [time-nuts] 5370B problem

2007-06-23 Thread SAIDJACK
In a message dated 6/23/2007 02:54:57 Pacific Daylight Time, [EMAIL PROTECTED] writes: Again this is with 100 averages, +-TI mode, What STDDEV does it report ? Hi Poul, the two oscillators slowly move away from each other, so standard-dev is somewhat useless. It reports between 20

Re: [time-nuts] new paper on Allan Variance errors

2007-06-15 Thread SAIDJACK
In a message dated 6/15/2007 06:06:41 Pacific Daylight Time, [EMAIL PROTECTED] writes: You were (are?) not here on an H1B visa, so I guess I don't understand why you feel threatened. H1B visa's were made specifically to address a shortage of doctors and engineers who are willing to

Re: [time-nuts] new paper on Allan Variance errors

2007-06-15 Thread SAIDJACK
In a message dated 6/15/2007 13:51:29 Pacific Daylight Time, [EMAIL PROTECTED] writes: Again, it's hard to find good engineers. Then again, I'm pickier than before; I'm looking for great engineers. Jack Hi Jack, congrats on the car and bonus! I know of someone who refused his

Re: [time-nuts] another Ebay mixup, 5370

2007-06-14 Thread SAIDJACK
In a message dated 6/14/2007 10:03:40 Pacific Daylight Time, [EMAIL PROTECTED] writes: Just a quick note about the HP 54720D. If you have 2 of the 4Gs plugins installed are measuring a differential ECL signal; this combination yields 2pS rms jitter. I spent many hours characterizing

Re: [time-nuts] another Ebay mixup, 5370

2007-06-14 Thread SAIDJACK
In a message dated 6/14/2007 11:29:47 Pacific Daylight Time, [EMAIL PROTECTED] writes: was using a PC based post processing analysis package from Amherst Associates (Mike Williams) which has slightly better zero crossing interpolation than the 54720D. It requires down loading the (large)

Re: [time-nuts] another Ebay mixup, 5370

2007-06-14 Thread SAIDJACK
In a message dated 6/14/2007 11:34:04 Pacific Daylight Time, [EMAIL PROTECTED] writes: If realy a fet probe is needed, than use a lowpass filter with enough bandwidth after the probe. Most of the time the majority of the jitter is still seen and the large noise bandwidth of the probe

Re: [time-nuts] HP E1938 oscillator

2007-06-14 Thread SAIDJACK
In a message dated 6/14/2007 13:44:16 Pacific Daylight Time, [EMAIL PROTECTED] writes: Is he away on vacation, sick in hospital, in jail? Or does HP/Agilant have other ideas about the distribution of thier surplus oscillators? Bill Hi Bill, I think he was totally overwhelmed by the

Re: [time-nuts] new paper on Allan Variance errors

2007-06-14 Thread SAIDJACK
In a message dated 6/14/2007 15:01:12 Pacific Daylight Time, [EMAIL PROTECTED] writes: I get this very thing for all the other professional societies that have good papers but I am not a member of those. Some charge horrendous amounts. Some even demand a year's subscription just to

Re: [time-nuts] Spare 5370b in Australia anyone?

2007-06-13 Thread SAIDJACK
Jim Palfreyman (P.S. Apologies if this goes against the charter of the list - but this place is simply the best place to ask. Feel free to email direct to keep list noise down) Hi Jim, no worries, there was recently an extended discussion about the benefits of certain cutting knives on

Re: [time-nuts] another Ebay mixup, 5370

2007-06-12 Thread SAIDJACK
In a message dated 6/10/2007 23:14:02 Pacific Daylight Time, [EMAIL PROTECTED] writes: In a message dated 6/10/2007 19:04:25 Pacific Daylight Time, [EMAIL PROTECTED] writes: However there are some capacitively (critically?) tuned resonant circuits which will need some care to adjust

Re: [time-nuts] 5370 Time interval calibrator.

2007-06-11 Thread SAIDJACK
In a message dated 6/11/2007 01:19:56 Pacific Daylight Time, [EMAIL PROTECTED] writes: It's on my list to build one. I was going to use a 4 port transfer type coaxial relay to do the start-stop swap, this should have even better balance than the Omron and PCB tracks, and has direct SMA

Re: [time-nuts] another Ebay mixup

2007-06-09 Thread SAIDJACK
In a message dated 6/9/2007 05:20:19 Pacific Daylight Time, [EMAIL PROTECTED] writes: You may want to run it through the cal because there are a lot of things that can go wrong without providing obvious clues on these counters. Didier Hi John, Didier, thanks for the feedback! I got

Re: [time-nuts] another Ebay mixup, 5370

2007-06-09 Thread SAIDJACK
Hi Bruce, and finally here is a plot of both the 5370B and the Fury 10MHz sine wave spectras for comparison. It only takes a 5 - 9th order passive lowpass filter to make a nice sine wave out of the 5370B output, I wonder why HP didn't do that back then. Also, I think the 10811 output

Re: [time-nuts] another Ebay mixup, 5370

2007-06-09 Thread SAIDJACK
In a message dated 6/9/2007 17:00:32 Pacific Daylight Time, [EMAIL PROTECTED] writes: One of my 5370A's had a severely distorted sine out, which Bruce helped me trace to a bad solder joint Didier Hi Didier, was it worse than the scope picture I just sent out? thanks, Said

Re: [time-nuts] WG: Pendulums Atomic Clocks Gravity/Plotter/EZGPIB

2007-06-07 Thread SAIDJACK
Hi Ulrich, that's great news! I will download it now. For some reason I have not been getting Time-Nuts emails over the last week or so, maybe it's AOL's spam filter? need to check. Thanks again, Bye, Said ** See what's free at

Re: [time-nuts] Z3801A Antenna

2007-06-03 Thread SAIDJACK
In a message dated 6/3/2007 10:51:33 Pacific Daylight Time, [EMAIL PROTECTED] writes: I ended up purchasing a Oncore 2000 antenna (5V, 25dB) from Ridge Equipment http://www.ridgeequipment.com/store/page6.html that I need to install still (when there is no risk of thunderstorms). Hi

[time-nuts] PRS-10 findings

2007-05-30 Thread SAIDJACK
Hello guys, some time ago we talked about curious humps in the ADEV of the SRS PRS-10 Rb at around 20s intervalls. I think I may have more info on that (and as usually that raises more questions): Below is a capture of the phase offset between a PRS10 1PPS output compared to the

Re: [time-nuts] PRS-10 findings

2007-05-30 Thread SAIDJACK
In a message dated 5/30/2007 09:28:02 Pacific Daylight Time, [EMAIL PROTECTED] writes: tvb wrote: I've not heard that these counters do some sort of dynamic self-calibration. Nor have I seen that sort of periodicity in a 53131 or 53132 counter. Nor have I. I have several 53131's and a

Re: [time-nuts] PRS-10 findings

2007-05-30 Thread SAIDJACK
In a message dated 5/30/2007 05:38:40 Pacific Daylight Time, [EMAIL PROTECTED] writes: interference from an off-frequency signal. I hadn't bothered to lock the counter to an external reference, and on measuring a Rubidium source against its internal oscillator, got a reading about 1.4 x

Re: [time-nuts] FW: Pendulums Atomic Clocks Gravity

2007-05-30 Thread SAIDJACK
In a message dated 5/30/2007 13:06:23 Pacific Daylight Time, [EMAIL PROTECTED] writes: Regards Ulrich Bangert Hi Ulrich, I am still using plotter daily, easier to use than Stable32. Some comments on Plotter: it cannot directly read-in RS-232 output from the 53132A (such as I posted

Re: [time-nuts] HP E1938 oscillator

2007-05-27 Thread SAIDJACK
In a message dated 5/27/2007 07:55:58 Pacific Daylight Time, [EMAIL PROTECTED] writes: Hi Said, private international shipment and customs is not that problematic to my knowledge and experience, at least between the USA and Europe. On Sat, 26 May 2007 20:39:23 EDT, [EMAIL PROTECTED]

Re: [time-nuts] HP E1938 oscillator

2007-05-27 Thread SAIDJACK
In a message dated 5/27/2007 15:25:24 Pacific Daylight Time, [EMAIL PROTECTED] writes: I think that it is obvious for everybody, restricted items or confidential documents cannot be shipped this way. Hi Arnold, you are probably right, it's probably not a big deal to send these items

Re: [time-nuts] HP E1938 oscillator

2007-05-27 Thread SAIDJACK
In a message dated 5/27/2007 14:06:11 Pacific Daylight Time, [EMAIL PROTECTED] writes: On 5/27/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: The CCL clearly talks about items such as space qualified oscillators, or stability better than 1E-011 etc. I am not trying to advise anyone if

Re: [time-nuts] HP E1938 oscillator

2007-05-27 Thread SAIDJACK
In a message dated 5/27/2007 16:10:46 Pacific Daylight Time, [EMAIL PROTECTED] writes: Technical Notes: 1. A resolution of n bit corresponds to a quantization of 2n levels. Random snippet from Supplement No1 to Part 774. Bruce Hi Bruce, I have yet to figure it out too. That's why we

Re: [time-nuts] HP E1938 oscillator

2007-05-26 Thread SAIDJACK
In a message dated 5/25/2007 17:31:00 Pacific Daylight Time, [EMAIL PROTECTED] writes: I still have dozens of surplus E1938A's if anyone wants one. They are in worked the last time it was turned on, but no guarantee of specs condition. I can't accept money for these units. Rick

Re: [time-nuts] HP E1938 oscillator

2007-05-26 Thread SAIDJACK
Hello Rick, same here, two would be great for comparison. I can also paypal you, pick it up locally (Silicon Valley) or send you a check. Please let us know, thanks, Said ** See what's free at http://www.aol.com.

Re: [time-nuts] HP E1938 oscillator

2007-05-26 Thread SAIDJACK
In a message dated 5/26/2007 15:20:44 Pacific Daylight Time, [EMAIL PROTECTED] writes: Richard (Rick) Karlquist wrote: Regarding non-USA requestors: I will need to look into the customs aspect of this. If anyone on the list can give me a tutorial on this it would be helpful. These

Re: [time-nuts] QUARTZLOCK product guide

2007-05-22 Thread SAIDJACK
In a message dated 5/22/2007 14:47:15 Pacific Daylight Time, [EMAIL PROTECTED] writes: Nice literature. I never came across any of their units in the field. Rob K I have one of their Rb's. Very nice performance. bye, Said ** See what's free

Re: [time-nuts] New Trimble timing products

2007-05-21 Thread SAIDJACK
In a message dated 5/21/2007 17:59:43 Pacific Daylight Time, [EMAIL PROTECTED] writes: Didier Juges [EMAIL PROTECTED] wrote: Unless you need the very small form factor and low power consumption, and unless the performance (so far, data is unavailable, I have asked for Allan Variance

Re: [time-nuts] 50 vs 75 ohm cables

2007-05-11 Thread SAIDJACK
In a message dated 5/10/2007 20:27:33 Pacific Daylight Time, [EMAIL PROTECTED] writes: Fortunately we are seeing more and more DVI and HDMI around here and they seem to have much better characteristics, the S-Video interconnec system is, to put it mildly, worthy of the junk bin! Yeah,

Re: [time-nuts] 50 vs 75 ohm cables

2007-05-10 Thread SAIDJACK
Hi guys, some practical comments: * 50 Ohms transmission lines are much easier to fabricate on standard 4, 6, or 8 layer PCB's. 75 Ohms traces are very thin and thus have issues in manufacturing accuracy. * Feeding a 50 Ohm source into a 75 Ohm load gives a VSWR of 1.5, a

Re: [time-nuts] Fury Realhamradio listing

2007-04-29 Thread SAIDJACK
In a message dated 4/28/2007 22:21:55 Pacific Daylight Time, [EMAIL PROTECTED] writes: Obtaining 100ps resolution, particularly when one is only making 1 measurement per second, is relatively easy and inexpensive to do with a few discrete components. Obtaining much better than 150ps

Re: [time-nuts] Fury Realhamradio listing

2007-04-29 Thread SAIDJACK
In a message dated 4/29/2007 04:13:30 Pacific Daylight Time, [EMAIL PROTECTED] writes: Indeed. Three-four transistors and a handfull of caps and resistors. The Z3801A uses the 10 MHz clock and thus require a x1000 interpolation, which is easy enought to acheive. Look at the HP5335A

Re: [time-nuts] Fury Realhamradio listing

2007-04-29 Thread SAIDJACK
In a message dated 4/29/2007 16:40:44 Pacific Daylight Time, [EMAIL PROTECTED] writes: Try studying a little history, its been possible to achieve 25 picosecond accuracy and resolution for over 30 years. Such resolution is routine in Nuclear instrumentation. State of the art nuclear

Re: [time-nuts] Fury Realhamradio listing

2007-04-29 Thread SAIDJACK
In a message dated 4/29/2007 17:08:03 Pacific Daylight Time, [EMAIL PROTECTED] writes: The interpolator circuit resolution in the PRS10 time tagging circuitry is about 200 picosec. Bruce Hi Bruce, but they don't offer it for user time stamping, probably for one good reason or

Re: [time-nuts] OT: eBay bidding question

2007-04-28 Thread SAIDJACK
In a message dated 4/28/2007 15:59:47 Pacific Daylight Time, [EMAIL PROTECTED] writes: I believe this is correct, that is where sniping does not work too well (manually or automatically). If you wait for the last second, and your bid is below the reserve, you may not even realize until

[time-nuts] Fury Realhamradio listing

2007-04-28 Thread SAIDJACK
Hello guys, I am extremely proud to say that as of today one of our Fury GPSDO's in the field (Colima, Mexico) is online at the fantastic realhamradio.com site running the GPSCon Pro program: _http://www.realhamradio.com/GPS_websites_list.htm_

Re: [time-nuts] Fury Realhamradio listing

2007-04-28 Thread SAIDJACK
In a message dated 4/28/2007 16:49:40 Pacific Daylight Time, [EMAIL PROTECTED] writes: The Fury is at: http://resco.ucol.mx/Fury/gpsstat.htm Tom's Z3801A #4 is at: http://www.leapsecond.com/gpscon/gpsstat.htm Is the Fury command set the same as the Z3801 or did they add commands for

Re: [time-nuts] Fury Realhamradio listing

2007-04-28 Thread SAIDJACK
In a message dated 4/28/2007 19:14:40 Pacific Daylight Time, [EMAIL PROTECTED] writes: In reporting 1PPS TI, did you measure what averaging time the Z3801A uses? And what averaging time do you use in your Z3801A emulation? Hi Tom, What I found in the Z3801 manual was that they use some

Re: [time-nuts] OT: eBay bidding question

2007-04-26 Thread SAIDJACK
In a message dated 4/26/2007 06:02:25 Pacific Daylight Time, [EMAIL PROTECTED] writes: by the correct bid increment. At this point we do not know bidder 8's highest bid (known as his proxy bid), and maybe we never will. Maybe he only bid $4050 exactly to outbid bidder 6. You not only have

Re: [time-nuts] OT: eBay bidding question

2007-04-26 Thread SAIDJACK
In a message dated 4/26/2007 05:23:48 Pacific Daylight Time, [EMAIL PROTECTED] writes: Can anyone propose a sequence of bids on dates that explains this list of recorded bids and dates? I guess there must be one but it is evading me. *Bidder*Bid AmountDate of bid

Re: [time-nuts] GPS Disciplined Oscillators

2007-04-25 Thread SAIDJACK
In a message dated 4/25/2007 09:50:38 Pacific Daylight Time, [EMAIL PROTECTED] writes: So, to reiterate the question, if I was clear enough, what kind of frequency excursions should I anticipate to see amongst my three disciplined oscillators in lets say 24 hours, or in a month. Assume GPS

Re: [time-nuts] retry: PRS10 has spurious frequencies

2007-04-25 Thread SAIDJACK
In a message dated 4/24/2007 15:14:11 Pacific Daylight Time, [EMAIL PROTECTED] writes: It is unclear to me if the spurious is normal or not. The spurious of my PRS10 is 60dB down the 10MHz so it is strange that you see no spurious. Hi Henk, try running your PRS10 from a Pb

Re: [time-nuts] retry: PRS10 has spurious frequencies

2007-04-25 Thread SAIDJACK
In a message dated 4/25/2007 11:55:53 Pacific Daylight Time, [EMAIL PROTECTED] writes: And on the opposite front, the TSC-5120 isn't very happy with a square wave input, particularly if harmonics fall within its input range. The symptom is lots of spurs showing up in the phase noise

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