Re: [time-nuts] Replacement Backup Battery for 5065A?
Thanks for all the suggestions! I think I'll take the conservative approach for now and just remove the battery (fortunately it has not leaked!) and run from a UPS-backed outlet. If I ever decide I want to reinstall the battery, it would be to keep the 5065A "original" and not for real backup purposes since, as has already been pointed out, an external backup is preferable for a lot of reasons. Stan ___ 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] Replacement Backup Battery for 5065A?
With all this recent 5065A talk I decided to pull mine out of storage and fire it up. After a little time to let everything warm up and settle in, I'm happy to report that it's working just fine! My 5065A has the battery backup option, and the battery is the original one (1420-0066, Energy Sales p/n ES710, 25.2V 1.4 Ah). Not surprisingly, the battery is quite dead. Does anyone any insight about installing a more modern battery (SLA or NiMH, perhaps) that will fit in the battery compartment in the 5065A? I've looked at a few small 12V/2.2Ah SLA batteries that are physically small enough that I should be able to fit a couple in the enclosure and connect them in series to get 24 volts out, but I want to wait until either I have assurance from someone with more experience than I that this will actually work, or a better idea about a more suitable replacement. Thanks, Stan ___ 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] TAPR Oncore M12+ kit
I would be interested in participating in a group buy for the end plates. I will need two of them. Regards, Stan N6BYU Date: Fri, 28 Apr 2017 09:56:55 +0100 From: Steve - Home <steve-kr...@cox.net> To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Subject: Re: [time-nuts] TAPR Oncore M12+ kit Message-ID: <802e38ff-adca-435f-866d-f821c6223...@cox.net> Content-Type: text/plain; charset=us-ascii All, To add to the excellent information Art has provided - I spoke with Candice Rincon at Phoenix Mecano and just received a quote from her for the end plates. There is a $100 minimum order policy at P-M, shipping and taxes additional. The end plates with gaskets and screws are $7.25 each so we'll need to order 14 end plates to meet the minimum; that's enough to do 7 enclosures. The plates are cast aluminum and are blank so you would need to drill your own holes per the diagrams Art provided. I don't know how many GPS kits were sold but if there's enough interest maybe we can do a group order. Steve WB0DBS ___ 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] Strange problem with LH 5.0
Thanks for that info--I feel better now about my setup! Any idea when the next release will be out? Regards, Stan -Original Message- At 33 seconds past the minute Heather requests the SYST:STATUS? info from SCPI receivers which takes 3 seconds for the device to send. The clock does not update while Heather is reading the status info because the receiver is not sending any time messages. The next release "fakes" the missing seconds so the clocks appear to keep ticking even though the receiver is not sending time codes. -- ___ 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] Strange problem with LH 5.0
Hello, I am running Lady Heather 5.0 on my Win 7 PC, connected to an HP 58503A through a dedicated hardware serial port. Everything seems to be working and updating as it should, EXCEPT every minute at the 33 second mark, the window freezes and nothing updates until the 37 second mark, then everything updates once a second as it should until the next 33 second mark. I've looked at the Win 7 clock and run SatStat, and both count smoothly and update every second. I'm hoping it's just a configuration issue with LH, but I'm not sure. Everything else about LH seems to be working as it should. Any ideas? Thanks, Stan ___ 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] What signals if any are on the unpopulated SMC pads on the 58503A motherboard?
Hello, Subject line pretty much says it all. I am using a newly-resurrected 58503A and noticed some unpopulated SMC connector pads on the motherboard next to the 1 PPS and the Alarm Output jacks. Curious if one of these might be an IRIG-B output (or some other useful signal)? Thanks, Stan ___ 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] Configuring LH5 for use with an HP 58503A
Hi Mark, Thanks for the advice-it did the trick! Regards, Stan Heather wants the device to be in half-duplex mode where it does not echo the serial port characters. Unfortunately in version 5 the command that it sends to turn echo off does not work on all receivers. It is fixed in the next version. Right now, try starting heather with the /rx5 /bt command line options. The /bt will start Heather in a terminal emulator mode. Type in the command (without the quotes): ":SYST:COMM:SER1:FDUP 0" Type in "SYST:STAT?" and verify that what you typed is not echoed. Press END to exit terminal mode. ___ 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] Configuring LH5 for use with an HP 58503A
I just resurrected an HP 58503A and have been using it successfully for the last few days with the GPSCon program. I would prefer to use Lady Heather, but can't seem to get it configured properly. My system is a Windows 10 PC with a USB to serial cable at COM3. The serial protocol on the 58503A is 9600,8,N,1. I've added /3 for the COM port to the startup command line. All other config file parameters are unchanged from the default. When I start LH it finds the 58503A and identifies it as a SCPI receiver, but then it hangs with no position data or time data, and the PC speaker chimes continuously at slightly slower than once per second. The only way to exit the program is to kill the process with the task manager. There are no other programs vying for the COM port. Any and all help is appreciated! Thanks, Stan ___ 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 58503A chassis part needed
Hello, I'm in the process of restoring my 58503A. In the process of disassembling it, the rear plastic frame that is held to the back panel with the two T15 Torx screws had become brittle with age and it cracked into several pieces as I was removing it. It will be difficult to get all of the small pieces glued back into place, so I'd rather just replace it with an intact part. I have a spare rear frame from another HP bench instrument in my spare parts bin, but much to my surprise I found that the center-to-center hole spacing of the screws on the 58503A frame is about 7.5", whereas on all of the other HP bench instruments that I've checked it's only about 7.375", so my spare frame does not fit. Does anyone have, or know where to get, the proper rear frame for my 58503A? Thanks, Stan ___ 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 58503A failure
I have had an HP 58503A GPSDO with the Option 001 display running continuously for over ten years without a problem-that is, until today. When I looked at it this morning, the display was showing a valid time, but it was frozen and not advancing. Pushing on the buttons had no effect. I unplugged it, let it rest for a minute or so, and plugged it in again, and this time the display lit up with a string of several identical "garbage" characters that extended only part way across the display. The rest of the display was blank. Pushing on the front panel buttons had no effect, the display at one point changed to a different string of meaningless characters and, needless to say, the clock never resumed running. Unplugging it and plugging it in again resulted in the same behavior, although different "garbage" characters were displayed, including some of the annunciators in the VFD that are just 53131A and 53132A counter functions (+WID, -WID, GATE, etc.). I opened it up and checked the power supplies, and they were spot on (+5 VDC, +15 VDC, and -15 VDC) with no measurable ripple. I also checked to see if I could communicate with it through the serial port using GPSCom (which has worked fine in the past), but no luck. I just got "Receiver Timeout" error messages. The power LED glows steady green, but no other LEDs light, even when the buttons are pushed. I'm not sure if a service manual or CLIP even exists, but I certainly couldn't locate any service info whatsoever. Any ideas? Thanks, Stan ___ 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] Anybody want a Thunderbolt power supply?
Jim, I use a HP 6236B triple power supply to drive 2 each T'Bolts. Works fine after the T'Bolts warm up, with limitations on a cold start up. But once they warm up all is OK. Using a common outside puck antenna and a HP RF distribution block I can run 3 T'Bolts and get essentially the same results. #1 T'Bolt is on a HP 6235A DC PS and #2 and #3 are on the 6236B. #1 has been on for years. I am planning to box up and use a Mean Well SMPS common power supply that will handle the load current of 3 T'Bolts starting cold. Adding a few digital panel meters to measure individual load currents and voltages. Stan, W1LE Cape Cod On 9/1/2016 9:44 AM, James Robbins wrote: Is there a problem running more than one Thunderbolt off of the same linear supply (assuming the supply can support the current demands) or does each Thunderbolt require its’ own separate linear supply? Jim Robbins ___ 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] More eLORAN Info
More eLORAN info: de Stan, W1LE Forwarded Message Subject:FW: eLORAN Date: Thu, 07 Jan 2016 11:19:51 -0500 From: Charles Schue (Taviga) <charles.sc...@taviga.com> To: stanw...@verizon.net CC: 'Charles Curry' <charles.cu...@taviga.com>, Stephen Bartlett <stephen.bartl...@ursanav.com>, 'Dana Goward' <dgow...@rntfnd.org> Hi Stan, You are welcome to distribute this and other Taviga, UrsaNav, or Chronos Press Releases as you see fit. You and your colleagues might also take a look at the Resilient Navigation and Timing Foundation's website at: www.rntfnd.org. I've added their President, Dana Goward, to this email FYI. Since you received this press release, I expect you have already been talking with Steve Bartlett - our VP of Operations at our office in N. Billerica, MA. If not, he can inform you of any timing trials that we may be running. He can be reached at the included email, or at 781.538.5299 x108. We are always interested in feedback from the HAM community, both nationally and internationally, so that we can better understand how our signals are being received and used. Of course, if you find the signals useful, then we would appreciate any support you or your colleagues/organizations might provide to eLoran initiatives via your elected officials. Please do not hesitate to reach out to us if we can answer any questions. Best, Chuck. Very Best Regards, Charles Schue, FRIN Co-Founder & Director M: +1.703.623.5212 -Original Message- From: Stan W1LE [mailto:stanw...@verizon.net] Sent: Thursday, January 7, 2016 11:00 To: charles.sc...@taviga.com Subject: eLORAN Hello Charles, Do you mind if I distribute this press release to my local and international ham radio friends with an interest in timing and LF reception ? Do you mind if I distribute future press releases ? I missed being able to achieve Cs frequency accuracy in the LORAN C system with Nantucket ~ 40 miles away. I do my receiving with a Stanford Research Systems FS700 LORAN C Frequency Standard. I will await your approval to redistribute on the Internet. Stan, W1LECape Cod FN41sr ___ 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] LORAN Activity in the US
Hello The Nets: currently my receiver is locked and I am tracking the LORAN emitter in the US. Rx is a SRS FS700, Austron LF Multifilter #2084, a pair of orthogonal delta loops, and a ARR preamplifier at the antenna. A deep cycle battery is at the antenna for DC power. Stan, W1LECape Cod FN41sr ___ 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] High Stability OCXO for Pendulum CNT-90
Hello all, I have a Pendulum CNT-90 with the standard oscillator option. I notice that there is an open area on the main PCB where a higher stability reference would be installed. 1) Is it possible to install an aftermarket high stability reference oscillator into this stock CNT-90 and be able to use it? 2) If so, is it just a matter of soldering an appropriate OCXO module into the designated area on the PCB? 3) Will the CNT-90 automagically recognize it, or are there jumpers or other things that have to be done to enable it? 4) Any recommendations for a good, high stability reference to use? Thanks, Stan ___ 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] eLORAN test 6 Aug. Both Dana In. and wildwood nj
I am locked at 8970 GRI, have been for a few hours No luck with 9960 GRI from this location. Using a SRS FS700 Stan, W1LECape CodFN41sr On 8/6/2015 4:10 PM, paul swed wrote: not on that I can see On Thu, Aug 6, 2015 at 12:46 PM, D W watsondani...@gmail.com wrote: Picking up a strong signal here in North Carolina. My 2100F has been locked to Wildwood all morning. I'm using a 5' wire whip and a home brew preamp. Not hearing Dana yet. Dan On Aug 4, 2015, at 2:34 PM, paul swed paulsw...@gmail.com wrote: The Wildwood, NJ Transmitter will be on air from 0900 (EDT) 06 August until 1800 (EDT) 07 August. Wildwood will be broadcasting as 8970 Master and Secondary. The Dana, IN transmitter will also be on air intermittently during this time period. Dana will be broadcasting as 9960 Master and possibly other rates and stations as well. So at least 2 GRIs and at different locations. That will make it pretty interesting. Regards Paul WB8TSL ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Lucent KS-24361/Z3810A : problem with Z3812A/REF 0 unit power up--RESOLVED!
Hello all, I contacted the eBay seller and he sent me an exchange REF 0 module. I swapped it in and it powered right up. Now there is a single green LED (ON) illuminated on the REF 0 module and a single yellow led (STBY) illuminated on the REF 1 module, so I'm pretty sure that all is well. Thanks to everyone on this list for all of the helpful suggestions. I also want to give the highest praise to the eBay seller, who stood behind his product and very quickly made it right for me! Regards, Stan ___ 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] 53132A Cooling fan
Hello The Net: Mike, thanks for the 53132A fan info. I also have a noisy fan. I have considered adding a proportional fan controller since more colling is needed if aditional options are added, like a more stable internal reference or a prescalar to 3 GHz or 12 GHz. Less cooling is needed if no internal options are included. Less cooling can mean a slower fan speed and lower acoustic noise. Anyone have any thoughts on exactly where to put a temperature sensor for a proportional fan controller? The W1GHZ.ORG website had a fan controller. Anyone have any thoughts on how to increase the intensity of the dim display ? Is it a power supply issue ? I use my 53132A with TimeLab to measure the performance of different oscillators. Stan, W1LECape Cod FN41sr On 11-Jan-15 8:29 AM, Mike George wrote: I replaced one last year. I used a Delta EFB4012HD from Digi-Key but it isn't in stock currently. I just looked up the specs on the fan I removed and matched it to the fans available. There were multiple suitable substitutes. On 1/11/2015 00:59, Loïc Moreau wrote: Hi, My 53132A cooling fan is becoming extremely noisy so I have to fix it or find ear plugs fast. If anybody as encountered the same problem witch I suppose is common I will be interested if there is replacement part easily available for that purpose. Regards Loïc ___ 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] Lucent KS-24361 / Z3810A : problem with Z3812A/REF 0 unit power up?
Hello, I just received my Lucent KS-24361 and set it up on my bench to power it up. I connected the Z3809A interconnect cable between the two units (Z3811A/REF 1, and Z3812A/REF 0) and applied +24VDC to the appropriate pins on the two DE-9 connectors. The Z3811A/REF 1 ran through a sequential test of the four LEDS and then after a few seconds it settled in with the amber NO GPS and the red FAULT LEDs illuminated. Meanwhile, the Z3812A/REF 0 unit never lit a single LED and is still sitting there with all LEDs dark. Both units are drawing current: the Z3811A/REF 1 draws about 700 mA steady state, and the Z3812A/REF 0 draws only slightly less: 600 mA steady state. So far, I've swapped power connectors between the units and saw no difference, and I tried to power up the Z3812A/REF0 alone, but still no joy. Am I missing something about the setup, or do I have a defective Z3812/REF 0 unit? Thanks, Stan ___ 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] HP5370 extender cards?
Please sign me up for a set of the 5370 extender cards. Thanks, Stan Message: 1 Date: Wed, 13 Aug 2014 20:43:39 + From: Mark Sims hol...@hotmail.com To: time-nuts@febo.com time-nuts@febo.com Subject: [time-nuts] HP5370 extender cards? Message-ID: blu170-w114bcd2409bbd0835b5b8b8ce...@phx.gbl Content-Type: text/plain; charset=iso-8859-1 Well, after doing my TM500 extender cables, I was thinking of doing an extender board for the HP5370 boards. It would take two 36 pin extender cards to extend a card out of the card cage (the count chain board has a different connector spacing than the other boards so splitting the extender onto two boards lets one be able to extend the count chain board also). The board at the front of the unit has a different pin-count connector than the other boards and may not warrant doing its own extender card. Is there any interest out there in HP5370 extender cards? Depending upon quantity, cost should be in the $15 to $20 range. ___ 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] HP3336B S/N Question
Hello Don, I suspect: Original sticker 2127 early '80s manufacture later sticker 2514, remanufactured or modified to special customer specs, mid 80's 3040L is the custom system the device was used in. I like this synthesizer, either get the WECO adapter to a BNC(female) or just add a female BNC on the blank spot on the 75 ohm output front panel. Stan, W1LECape Cod On 10-Jul-14 2:26 AM, w...@aol.com wrote: So... My HP3336B has TWO HP S/N plates... The original plate: 2514A0 and a secondary HP sticker with: 2127A00xxx Also there is another HP sticker with: 3040L SYSTEM Anybody have any clues on this?? TNX 73 Don W4WJ ___ 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] WTB WECO Adapter
Consider the Trompeter series of adapters.Stan, W1LE On 10-Jul-14 9:02 AM, w...@aol.com wrote: Hello all... I can't find my WECO adapter for my HP3336B. It got lost in the move a while back. ;-( Am in need of a WECO to BNC adapter, WECO 439A/440A Anybody have one that they would be willing to sell? TIA... 73 Don W4WJ ___ 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] for sale: HP 5105A vintage frequency synthesizers
I have a couple of these lovely old heavy synthesizers that I don't have room for. 100 kHz to 500 MHz in 0.1 Hz steps with a cool search function. Hewlett Packard 5110B frequency drivers are included. I hope I'm not imposing on the list with this post, but they are very frequency related (and were certainly very very impressive in the late 1960's). And they still have one of the nicest user interfaces for quickly setting a frequency. Pick up from San Jose, California would be best. Pictures on eBay, discounting from the eBay price increasing over time (discount increasing more rapidly if I happen to stub my toe on one, now that they have been pulled out and are in my way). http://www.ebay.com/itm/131204122792 Contact me OFF LIST if interested. Stan ___ 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] SRS FS700 questions
Hello Nigel, I would consider doing the maintenance/calibration/performance verification procedure in the manual. A procedure will show if you have equal swing on the VCXO about the center freq needed. The VCXO can be mechanically adjusted for center of the VCXO electronic control range. I recall no backlight on the LCD on mine. It has been awhile since I last turned mine on. Stan, W1LE On 03-May-14 12:57 PM, gandal...@aol.com wrote: My FS700 arrived yesterday, complete with bonus artistic effects due to the sender believing a thin coat of bubble wrap with an outer layer of cardboard cut from a box and just taped on top, no padding or air gap, would be the obvious way to ship it:-( Physically at least it seems to have survived remarkably well, no damage to the BNCs and the front panel trim, outer covers and transformer cover all looking pretty good again after a couple of hours work. Not having any rack ears attached was probably quite a bonus with it shipped like this! The only obvious internal damage, and it might have been that way before shipping anway, are three vertical inductors held to the circuit board by silicon rubber or hot melt adhesive that are loose but still seem to be electrically connected Anyway, it powered up ok and is indicating it's locked onto Anthorn in the Lessay chain, even if it does believe it's found the never built station at Loop Head in Ireland:-), but I'm not sure if it's functioning properly. It's close enough that I don't want to start pulling it apart for the sake of it without being sure, and it may just be a case of waiting for it to settle, but after showing as locked for several hours the 10MHz output, as indicated both by the internal display and an external counter, is swinging back and forth quite rapidly anywhere within approx +/- 3 parts in 10^9. There was an obvious change in the crystal oscillator frequency as the oven warmed, and another when the conditioning seemed to take over, but it's been hunting like this ever since it first indicated lock and with no obvious change, just when I do think it might be converging it opens up again. So first question is, can anyone tell me please if this is normal or close enough that I should expect it to settle eventually, or do I need to start investigating further? Second question, could somebody confirm please whether or not the LCD display is supposed to be backlit? This one isn't, but it's not immediately obvious from photos I've found online whether or not it should be, and although the contrast range on this seems to be fine it's certainly not easy to see. Last question, for now at least:-), this unit has the FS800 PCB rev C, with revision 2.0 firmware, does anyone know if any later firmware is available that includes Anthorn, or at least Rugby, as part of the Lessay chain? Regards Nigel GM8PZR ___ 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] New Acquisition: HP-53132A
Thanks for all of the assistance. I will initially use a separate power strip for similar parasitic AC loads. Firmware version is 3703. Stan, W1LE on Cape Cod z ___ 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] New Acquisition: HP-53132A
Hello The Net, I just got in the counter and the fan is always ON, even with the front panel switch OFF. I looked in the manual but could not find anyway to change this. The counter has the standard internal 10 MHz reference, but I will be using a Trimble T'bolt GPS/DO for the external reference. The fan is part of the power supply module. I can see a possible need for it if a premium ovenized reference is always ON. But I do not have the premium internal reference. Is there a way to only allow the fan to be ON, if the front panel switch is ON ? Possibly a jumper setting ? Are there any key strokes to determine the software version, other than a check sum ? I do not have the standard HP serial number, with the vintage (manufacturing date code) code first. The unit was manufactured in Korea. Stan, W1LE on Cape Cod z ___ 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] Thunderbolt Pattern Failures
Hi, I've had a Trimble Thunderbolt for over three years, and it has functioned flawlessly, even in my high foilage area. During the recent snows, and coldsnap here in the Northeast (New York), my Thunderbolt has dropped signal from all satellites. The antenna is the mushroom one that came with the Chinese kits at that time. Is there a pattern failure for these antennas in sustained temperatures in single digits? One day this week, outdoor temp got over freezing, but all AMUs were still zero. I've searched this list via Gmane, but can't find any discussion on Thunderbolt pattern failures involving loss of rf signals, or antenna reliability. The antenna is well above the snow on the roof, although, I don't dare go up there to check it out until the snow melts. Tboltmon shows no open, and no short for the antenna connection status. Any prognosis on my getting signal back with the first good thaw? Any suggestion on a replacement antenna I can purchase if the antenna is fried? Could an antenna failure cause the rf frontend of the Thunderbolt to also fail? Thanks, Stan ___ 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] time-nuts Digest, Vol 113, Issue 34
Hi Corby, My 5065A is s/n 2816A01565 so technically I don't meet the conditions of your query, but I'm still curious what it is that you're looking for! Regards, Stan - Well it's that time again to ask HP 5065A owners if they have early or late SN units. If you have a unit with a SN below 916-00181 or above 2816A01697 please let me know. Merry Christmas and an accurate 1PPS to all! Corby ___ 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] 5071A for $1600?
Hi Paul, Did you actually turn down a 5071A for $1600, or did you mean to say $16000 (or perhaps it was a 5061A)? I'd buy a nice 5071A right now for $1600! Regards, Stan *** Date: Thu, 29 Aug 2013 12:56:39 -0400 From: paul swed paulsw...@gmail.com To: Tom Van Baak t...@leapsecond.com, Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] B.V.A. 8600 for sale Message-ID: CAD2JfAg=ujbrq83+b1f4dm9g47edzld95_+f0d1nwa6ky9t...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 Tom Completely agree. You pay for what you need like all things. I did turn down a very nice 5071 for $1600 from another Time-nut. Looked like it was in quite good condition. I just could not actually justify that cost for the hobby. Regards Paul WB8TSL *** ___ 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] VECTRON 371Y383 oscillator
Make a phone call to the NH plant. Ask a product specialist for details. May get shuffled to the PA plant. Persisit. Stan, W1LE Cape Cod On 12-Aug-13 8:53 AM, Collins, Graham wrote: Good day all, I recently purchased a VECTRON 10Mhz oscillator like the one in the this eBay listing 38133695 Very typical of some of VECTRON older offerings but I have been unable to find much if any information on this oscillator. I haven't yet emailed VECTRON but thought I might first ask the learned members of this list if anyone has or knows any details before I plug it in to see what I get. The oscillator is marked 371Y383 which a search of VECTRONS returns nothing but comparing to pictures and drawings of some older VECTRON units seems to indicate it might be or is very similar to their old CO-351 product. Cheers, Graham ve3gtc ___ 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] GPIB/HPIB Address 31, Talk Only
Hello The Net, Is address 31, for talk only, a HP/Agilent feature only, or do tothers provide talk only on the buss ? I am looking at RF frequency counters to 12 GH, for use with TimeLab. Stan, W1LE Cape Cod FN41sr ___ 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 and other equipment failure
PFC to me is power factor correction, not only the classical power factor to minimize (VAR) volt-amp reactive component, but also to remove the harmonic load current imposd on the electrical power system. A '90's onward technique. in th 80's and 90's without the harmonic load current reduction and having a few 100 end items of equipment, each withtheir own a switch mode power supplly, it was not uncommon to find hundreds of amps of the third harmonc on neutra, in the electrical power distribution system. Could be a serious EMC problem if you were dealing with voice grade channels. And people safety issues. Stan, W1LE Cape Cod On 15-Jun-13 5:52 PM, J. L. Trantham wrote: Sorry for the interruption but what is 'PFC'? Thanks. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Poul-Henning Kamp Sent: Saturday, June 15, 2013 4:09 PM To: Robert Atkinson; Discussion of precise time and frequency measurement Cc: Perry Sandeen Subject: Re: [time-nuts] HP and other equipment failure In message 1371329221.83869.yahoomail...@web171902.mail.ir2.yahoo.com, Robert Atkinson writes: While I agree with everything else you say, you CAN have too much filter capacitance. At least where dc rectifier / filter (smoothing) circuits are concerned. Increasing C causes increased ripple current [...] And ripple current can be a major source of power-line frequency noise in all electronics. The main reason why switchmode power-supplies today (can) outperform linear power supplies with respect to noise, is because the legally mandated PFC correction eliminates the bridge-rectifier ripple harmonics. I would not hessitate to use a good quality switchmode to replace the linear supply in a HP5370B. I did some experiments a couple of years ago, with an audio-amplifier: I put a standard PFC corrector chip on the secondary side of the trafo. The overall result was not satisfactory, but the 50 Hz sneer we all know and hate was absent, and the Tzoing! power-on mechanical shock from the trafo was also eliminated, as was the consequent dimming of the lights ;-) The main reason not to do this, is that you need some physically gargantuan coils for a 10A+ PFC-switcher. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] FLUKE PM6680B Counter Time View software for the PC
Hello A.B., Actually TimeLab is collecting data right now and I am quite happy with it. I will be even happier when the PM6680B arrives on Tuesday and TimeLab can drive it directly without the talk only function I am currently using. The FLUKE TimeView is only an alternative, whose capabilities I hope to experience. I am currently using a HP5384A in talk only mode (HPIB address 31) with TimeLab to look at some OCXOs. A T'Bolt GPS/DO provides the 10 MHz reference. Now I better understand why there is a rubber gasket under the adjustment screw cover on the hermetically sealed cans of the OCXO. I can see the barometric pressure changes on frequency using TimeLab, at E-10 levels. Maybe the supposed drift due to the atmospheric pressure is due to the propagation of the GPS signals that can effect the 10MHz reference ?? May have to go back to a Rb reference to verify. It is also interesting to see how aging drift improves with time under power. I had been holding out for a HP 53132A counter but I am a frugal Yankee and I settled on the PM6680B for about 25% of the cost of a HP 53132A. Waiting for FedEx... Stan, W1LE Cape Cod FN41sr On 5/25/2013 8:14 AM, Azelio Boriani wrote: Why not TimeLab? On Sat, May 25, 2013 at 4:41 AM, Stan, W1LE stanw...@verizon.net wrote: Hello The Net: Can anyone point me to a source for the subject software ? Thanks Stan, W1LE Cape Cod ___ 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] FLUKE PM6680B Counter Time View software for the PC
Hello The Net: Can anyone point me to a source for the subject software ? Thanks Stan, W1LE Cape Cod ___ 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 Nut Pickens at the MIT Flea ?
Anyone got any Time Nut quality items at the MIT fleamarket today ? Stan, W1LE Cape Cod ___ 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] Are there any rubidiums programmahttps://mail.google.com/mail/?shva=1#inboxble to 40 MHz?
I should of been clearer, Thanks for your comments. final configuration is: OCXO as a 10 MHz reference to the 106.5 MHz PLL then the DB6NT multiplier chain for the LO. All of the stability I need for a contest weekend. Stan, W1LE On 3/26/2013 1:21 AM, Rex wrote: Please tell us if I am parsing the content of your message correctly with my inserted comments. On 3/25/2013 9:09 AM, Stan, W1LE wrote: Hello Dave, The problem I experienced with a Rb at 10 MHz stabilizing a AD6IW PLL at 106.5 MHz for a DB6NT 10 GHz G2 transverter, I assume by stabilizing you mean that the rubidium was providing the reference frequency to the PLL. was the significant microphonics after multiplication. The original xtal oscillator did not have microphonics, but would drift. My solution was to add a ISO-Temp 10 MHz OCXO as a reference to the PLL. By add I think you mean replace, as in, the rubidium is no longer used but the OCXO has replaced it as the PLL's reference. If you really meant add, that would imply that somehow the rubidium is disciplining the 10 MHz OCXO. This provided me with the frequency accuracy and stability needed for a weekend of microwave contesting, USB/CW My 10 GHz operation is portable and I rove. Stan, W1LECape Cod FN41sr On 3/25/2013 10:17 AM, David Kirkby wrote: I'm possibly looking for a 40 MHz source and I know some of the rubidiums are programmable. But can any of the affordable ones be programmed to work at 40.0 MHz? I was looking for a source to drive this 144 MHz - 10 GHz transceiver. http://www.chris-bartram.co.uk/products.html The TCXO oscillator is off the board and a separate item, but costs £40 and then one ideally wants to lock that to a more precise source. The oscillator will lock to an external 10 MHz source, but then one needs to buy both a 10 MHz rubidium as well as this 40 MHz TCXO. Hence I was wondering if there was a cheaper more compact solution, which just used a rubidium, and dispensed with a TCXO. 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.
Re: [time-nuts] Are there any rubidiums programmahttps://mail.google.com/mail/?shva=1#inboxble to 40 MHz?
Hello Dave, The problem I experienced with a Rb at 10 MHz stabilizing a AD6IW PLL at 106.5 MHz for a DB6NT 10 GHz G2 transverter, was the significant microphonics after multiplication. The original xtal oscillator did not have microphonics, but would drift. My solution was to add a ISO-Temp 10 MHz OCXO as a reference to the PLL. This provided me with the frequency accuracy and stability needed for a weekend of microwave contesting, USB/CW My 10 GHz operation is portable and I rove. Stan, W1LECape Cod FN41sr On 3/25/2013 10:17 AM, David Kirkby wrote: I'm possibly looking for a 40 MHz source and I know some of the rubidiums are programmable. But can any of the affordable ones be programmed to work at 40.0 MHz? I was looking for a source to drive this 144 MHz - 10 GHz transceiver. http://www.chris-bartram.co.uk/products.html The TCXO oscillator is off the board and a separate item, but costs £40 and then one ideally wants to lock that to a more precise source. The oscillator will lock to an external 10 MHz source, but then one needs to buy both a 10 MHz rubidium as well as this 40 MHz TCXO. Hence I was wondering if there was a cheaper more compact solution, which just used a rubidium, and dispensed with a TCXO. 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.
Re: [time-nuts] LORAN C still on the air 24 hours SRS 700 looking good
Hello Scott, Fire it up and set it to a GRI of 89700 and give it a listen. Stan W1LE Cape Cod On 3/20/2013 1:07 AM, Scott Harris wrote: I've got an SRS 700 and I live in CO. Any chance I can pick up the new LORAN signals? Thanks, -Scott On Mar 19, 2013, at 9:33 AM, paul swed paulsw...@gmail.com wrote: ___ 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] LORAN C still on the air 24 hours SRS 700 looking good
Just got in. LORAN C had been locked since Paul mentioned the signal. So far it is comparing to my T'Bolt GPS/DO to 8E-13. Stan, W1LE Cape Cod ___ 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] Loran again
Yes, LORAN is in and I have been locked up to GRI 89700, for a few hours now. Stan, W1LE Cape Cod On 3/10/2013 6:55 PM, Rich and Marcia Putz wrote: Hi All; I hear Loran C signals back on again, I'll fire up the SRS FS-700 and check. RP ___ 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] GPIB counter logging / plotting software?
Yes, there is software out there. Others would best comment. My indirect approach is different. I take the unknown RF signal into my RX converter with a GPS/DO stabilized LO, then the IF into a RX with a stable LO, and take the audio out to a computer soundcard and use ARGO software to display the drift. ARGO can be found at: www.weaksignals.com Stan, W1LECape Cod FN41sr On 2/25/2013 10:39 AM, Dan Rae wrote: I am working on 400 - 500 MHz DDS clocks for an amateur radio project and would like to record over gpib and plot the relative frequency drifts over time of different versions of the oscillator from a cold start. I have Racal 1992 and -hp- 5345 counters available, themselves driven from gps. I have the prologix USB thingy. Does anyone know of any software that will enable me to do this, without spending lots of money? Dan ___ 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] Locked onto LORAN 8970 GRI Monday AM
at 17:45Z, after 27 hours of continuous lock: freq offset is now -2.1E-12 and has been as low as -7E-13, compared to T'Bolt 10 MHz. Master station is at 59 dB, slave is at 63 dB signal strength. Stan,W1LE Cape Cod On 2/5/2013 12:12 PM, Bill Riches wrote: Hi Paul, I thought I was receiving Wildwood which is 3 miles or so away but apparently not. I nulled out the sig with my LFL1010 loop and get a null about 30 degrees which is toward Boston but maybe it could be Seneca after figuring antenna error and Mag variation. Signal strength with the loop max is -40 db and null is -60 dbm. I did a conversion and comparison using my icom 7600 and HP3336 sig gen. Measuring with the HP 3586 did not agree with the previous method - I imagine the modulation screws up its reading. I will play around with the Perseus later and see what that reads. So - My question is - what stations are you copying? I will continue to see if Wildwood comes up again. My contact with Wildwood has left the room! 73, Bill, WA2DVU Cape May, NJU ___ 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] Locked onto LORAN 8970 GRI Monday AM
Hello Bill, I have no real idea. I can not DF at this time. Antenna is an omni. I suspect the FS700 receiver looks at GRI data and placement within the waveform and goes to a look up table in firmware to tell me the supposed location to the LORAN plan 10 years ago. Only thing that may be possible is the RX signal strengths are different for master and slave, so they may be physically separated or their TX RF is from one location at different power levels. It will be interesting what your contact at Wildwood (NJ) has to say. Stan, W1LE Cape Cod On 2/5/2013 1:06 PM, Bill Riches wrote: OK Stan, What stations are you receiving - not GRI numbers but locations! Bill Riches Cape May - ___ 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] Locked onto LORAN 8970 GRI Monday AM
Have had lock onto slave Seneca for about 20 minutes on GRI 8970. compared to GPS/DO: phase offset 3.6 degrees, freq offset 6E-11 Stan, W1LE Cape Cod On 2/4/2013 9:48 AM, paul swed wrote: Don't hear LORAN today On Sun, Feb 3, 2013 at 6:18 PM, Stan, W1LE stanw...@verizon.net wrote: Hello The Net: was able to get a lock onto this GRI but not the master station. GRI 9007 is the EIDI chain with slaves at BO, Norway, Jan Mayen, and Vaerlandet also in Norway. Lock was short lived, but I will continue to monitor tonight. equipment: 2 orthogonal delta loops, top terminated, the SRS FS700 RX, Austron multifilter (multcoupler 1X4) Stan, W1LE Cape Cod __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/** mailman/listinfo/time-nutshttps://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] Locked onto LORAN 8970 GRI Monday AM
After 11:20 hours still tracking and locked to LORAN. Frequency offset compared to my T'Bolt GPS/DO is -2.5E12. Stan W1LE Cape Cod On 2/4/2013 8:56 PM, paul swed wrote: We can only dream. But will take what I can get for as long as I can get it. It sure in the heck kicks wwvb's capabilities. Regards Paul On Mon, Feb 4, 2013 at 6:20 PM, J. Forster j...@quikus.com wrote: Great. Now if the transmissions continue and the format doesn't change! -John ___ 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] LORAN GRI 9007 reception
Hello The Net: was able to get a lock onto this GRI but not the master station. GRI 9007 is the EIDI chain with slaves at BO, Norway, Jan Mayen, and Vaerlandet also in Norway. Lock was short lived, but I will continue to monitor tonight. equipment: 2 orthogonal delta loops, top terminated, the SRS FS700 RX, Austron multifilter (multcoupler 1X4) Stan, W1LE Cape Cod ___ 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] Loran again
Still locked onto the Dana/Seneca Loran stations at 8:38 am local. Comparison to GPS/DO is about the same. No new slaves detected. Stan, W1LECape Cod On 2/1/2013 12:30 AM, Stan, W1LE wrote: Fired up the SRS FS700 and auto found the GRI 89700 microsecond stations in Dana Il (master) and Seneca NY, (slave) both with equal signal strength of 63 db. Other slaves were not to be found. Noise margin of 32 dB and Rx gain of 72dB. So the Rx is all locked up. Tomorrow I will have more data comparing the 10 MHz from the T'Bolt. Right now they are comparing to within 10EE10. Stan, W1LE Cape Cod On 1/31/2013 10:44 PM, Stan, W1LE wrote: What GRI should we be listening for ? Stan, W1LECape Cod FN41sr On 1/31/2013 9:56 PM, paul swed wrote: Rich indeed its on the air. Warming up the FS700 to see if it will lock. Have a pattern ram thats getting flakey and takes about 30 minutes to warm up along with the oven. ___ 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] Loran again
What GRI should we be listening for ? Stan, W1LECape Cod FN41sr On 1/31/2013 9:56 PM, paul swed wrote: Rich indeed its on the air. Warming up the FS700 to see if it will lock. Have a pattern ram thats getting flakey and takes about 30 minutes to warm up along with the oven. ___ 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] Loran again
Fired up the SRS FS700 and auto found the GRI 89700 microsecond stations in Dana Il (master) and Seneca NY, (slave) both with equal signal strength of 63 db. Other slaves were not to be found. Noise margin of 32 dB and Rx gain of 72dB. So the Rx is all locked up. Tomorrow I will have more data comparing the 10 MHz from the T'Bolt. Right now they are comparing to within 10EE10. Stan, W1LE Cape Cod On 1/31/2013 10:44 PM, Stan, W1LE wrote: What GRI should we be listening for ? Stan, W1LECape Cod FN41sr On 1/31/2013 9:56 PM, paul swed wrote: Rich indeed its on the air. Warming up the FS700 to see if it will lock. Have a pattern ram thats getting flakey and takes about 30 minutes to warm up along with the oven. ___ 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] Needed: The Real Serial USB Fix
Hello The Net: Yes, I have had the mouse problem, but the more serious issue is when I run multiple (3) instances of Lady Heather (latest version at KE5FX) and after awhile none of the times agree and the problem only gets worse with time. I have tried the multiple USB to RS232 adapters into motherboard USB ports and I have tried a multi USB port PCI card. Any solutions with this problem ? Stan, W1LECape CodFN41sr ___ 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] OT, looking for a good science forum
I like the idea of a amateur microscopy nuts reflector. After a warm day, my bees took their cleansing flights and I collected some of their poop to look for parasites. Did not find anything moving at 500x , like tracheal mites or their parts, but I did find a lot of undigested pollen. I have not found a reflector for my microscopy interests. Stan, W1LE On 1/26/2013 5:45 PM, David Kirkby wrote: On 26 January 2013 18:31, DARRELL ROBINSON darr...@shaw.ca wrote: I did a Google search and came across sciencenuts.org, but content was limited If you have no success, maybe science-nuts could be created. There would be at least two of us joining. Make that three. 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.
Re: [time-nuts] OT, looking for a good science forum
Thanks for the pointer. I am checking it out now. Stan On 1/26/2013 8:59 PM, J. Forster wrote: The Yahoo Microscope Group already exists with over 3700 members world wide, which forms a huge knowlege base, from biology to microelectronics. http://tech.groups.yahoo.com/group/Microscope/ Why re-invent the wheel? -John ___ 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] Lady Heather V3.10, ALARM: 4000
Hello The Net: Any idea what this alarm is ? It appreared, I got out of the application, I restarted, and no more alarm notification. Stan, W1LE ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] GPS antenna in attic?
Or add vent pipe penetrations ~ 1.5 OD PVC pipe and put the GPS antenna on top of the pipe. Allows for vertical position variations. and the soft rubber gland allows for changes later. Had a new roof put on last year and I added 2 each of these plumbing vent type roof penetrations. Also added 6 each passive roof vents to keep the heat down, which could also be used for GPS antenna mounting and cable penetration. Neither roof vents nor the GPS antennas (~ at ridge line) are visible from the street. Stan, W1LE On 11/26/2012 9:22 AM, Scott McGrath wrote: Or install a frosted dome type skylight as a radome lights the attic and allows for better reception Sent from my iPhone On Nov 25, 2012, at 10:15 PM, J. Forster j...@quikus.com wrote: There are ways to do it w/o drilling holes. Most all houses have vent stacks for the plumbing, typically 3 or 4 inch cast iron or thick plastic. You can clamp a couple of feet of pipe onto one of those and run the wire to under an eve or through a gable end, adding a drip loop of course. But, if it were my house and I just wanted to discipline my local standard, I'd try the attic first. Among other things, you can get to the antenna w/o climbing on the roof! New England is not sunny CA. -John On Sun, Nov 25, 2012 at 8:50 AM, Peter Gottlieb n...@verizon.net wrote: I'm beginning to set up in my new house and planning where all my various antennas are going to go. Being a wood frame building, I was wondering if it was sufficient to simply mount my Thunderbolt GPS antenna high in the attic. It will work but it will be far from optimal. All you need to do is get a big drill bit and drill through the roof and put up an iron galvanized pipe. Put a pipe flange on the end and bolt the GPS antenna to that. You will need some metal flashing and roofing tar and then you will have a first class setup. You run the coax down the pipe. The timing antennas are pointed on top so snow falls off Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts 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] 5071A Cs Oven
If this is the 5071A on that online auction site, I found out from the seller that the error log shows Cs oven timeout. This might be because of a bad oven supply (expensive) or a bad tube (really expensive)! Stan -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of time-nuts-requ...@febo.com Sent: Thursday, October 04, 2012 9:51 AM To: time-nuts@febo.com Subject: time-nuts Digest, Vol 99, Issue 30 Message: 6 Date: Thu, 4 Oct 2012 09:45:22 -0700 From: Tom Van Baak t...@leapsecond.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] 5071A Cs Oven Message-ID: CCE1197699D24CBDB6AC7D386B504875@pc52 Content-Type: text/plain; charset=iso-8859-1 Bob, Right, not good. There should be a fault message associated with it. Check the internal log. OTOH, to conserve cesium, I've heard that some people run 5071A in standby mode most of the time and only turn on the cesium for a fraction of an hour a day or a week (to recal the quartz). Running in this standby mode is also advisable if one wants the best short-term performance out of a 5071A, without the loop noise. In this respect it's just like a GPSDO - you get the best short-term performance if you turn off disciplining. /tvb Hi Is Cs oven: 0.0V a good thing on a 5071A? I suspect not, since either it or GPS is off frequency. Bob -- Message: 7 Date: Thu, 04 Oct 2012 09:46:38 -0700 From: Hal Murray hmur...@megapathdsl.net To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] Tracking NTP displacement and correlation between two clients. Message-ID: 20121004164638.c0fee800...@ip-64-139-1-69.sjc.megapath.net Content-Type: text/plain; charset=us-ascii bow...@gmail.com said: Due to reasons I really can't go into, a systems user is concerned with the displacement of two servers from the same pair of stratum 2 NTP servers. I'm convinced that it really isn an issue as long as the two systems in question remain within a few 10's of ms. However, I have no off the shelf method of collecting and correlating the data. Before I go out and invent the wheel, I thought I would check and see if anyone has done such a thing and saved the scripts and whatnot. Assuming you are running the standard ntpd... It includes all sorts of logging. Set up the two systems so they use each other as servers. Turn on rawstats. ntpd will add a line each time it exchanges a pair of packets with a server. That line will have the IP Address and 4 time stamps. See the documentation. Details are in monopt.html The 4 time stamps are: time the request left the local system time the request arrived at the remote system time the response left the remote system time the response arrived at the local system If you subtract the first two, you get the network transit time for the request packet as skewed by the clock offset. Subtracting the last two gives you the transit time for the response packet. If you assume the network transit times are equal, you can compute the clock offset. If you are on a LAN, the transit times will probably be tiny on the scale of 10s of ms. (If you assume the clocks are both accurate, you can compute the network transit time in each direction.) If you want to graph the results, you have to split out the lines for the server you are interested in. Then you can feed it to gnuplot/whatever. You can also do the monitoring from another system, but then you have to sort out what happens when the clock on that system is off. How good is your connection to the big bad internet? If you run a big download over a slow link, the queuing delays can confuse ntp. You might want to look at the timings from your systems to the stratum-2 servers and/or from the stratum-2 servers to the outside world. -- These are my opinions. I hate spam. -- Message: 8 Date: Thu, 4 Oct 2012 18:50:31 +0200 From: Attila Kinali att...@kinali.ch To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] Tracking NTP displacement and correlation between two clients. Message-ID: 20121004185031.b49767822c28ff64c18b5...@kinali.ch Content-Type: text/plain; charset=US-ASCII On Thu, 04 Oct 2012 09:46:38 -0700 Hal Murray hmur...@megapathdsl.net wrote: If you assume the network transit times are equal, you can compute the clock offset. If you are on a LAN, the transit times will probably be tiny on the scale of 10s of ms. Within a LAN, RTT is usually in the range of 200us with a jitter in the same range (it can happen that jitter is significanlty higher than RTT, if you have bursty traffic in your LAN) Attila Kinali -- There is no secret ingredient -- Po, Kung Fu Panda
[time-nuts] New wrist Watch
Hello The Net: I need to consider getting a new wrist watch, but I need a second hand and a digital display is unacceptable. What would you consider in the 150$ price range ? Would be nice to have state of the art accuracy with a lifetime battery and high reliability. Thanks, Stan, W1LE Cape CodFN41sr ___ 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] Modern motherboard with RS232 port
Hello The Net, For your consideration: The INTEL model DN2800mt ITX mother board uses a ATOM CPU and draws about 11 watts of AC power when configured as: (I have not measured DC power yet.) 30 GB OCZ Nocti mSATA solid state drive, WIN7 pro, 64 bit, USB keyboard and mouse APEX MI-0008 case. Also has: parallel port available on mother board, you extend to a connector RS232 serial port available on mother board, you extend to a connector a single DC power supply from 11 to 19 V DC. 1 each PCIe expansion port, I will use with a premium 4 channel sound card SATA ports available for HDD/SDD, USB ports are available, Motherboard sound, and Gigalan. I have not played with NTP, (yet), but it sounds like a decent time nut technical challenge. My application is for a remote site with only 13V DC power available from PV/batteries. Then use fiber ethernet to get off site. The INTEL website would have further details. Stan, W1LECape Cod FN41sr z ___ 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 58503A Dim Display Replacement
Hi Jeff, The VFD module is identical to the ones used in the 53131A and 53132A counters. It is a part of the A2 input assembly in the counters (p/n 53131-60002). The good news is that Agilent still has 7 new and tested units in stock. The bad news is that the list price is $756.00. Even though all you really need is the actual glass VFD module, it's not available from Agilent as a separate part. Regards, Stan 2. HP 58503A Dim Display Replacement (jeffh...@comcast.net) Message: 2 Date: Wed, 25 Jul 2012 00:29:02 + (UTC) From: jeffh...@comcast.net To: time-nuts@febo.com Subject: [time-nuts] HP 58503A Dim Display Replacement Message-ID: 1924087406.102486.1343176142270.javamail.r...@sz0079a.emeryville.ca.mail.co mcast.net Content-Type: text/plain; charset=utf-8 Hi, I have an older HP 58 503A with option 001 display but it is very dim from age. Does anyone know of a replacement display IC for this? Thanks Jeff ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] GPS and Rubidium frequency standards and noise question (newbie).
Hello Chris, You are on the right track. I have had the Trimble Thunderbolts (3 each) for about 5 years now. Just to be sure everything compares favorably I use Lady Heather PC software to monitor their performance (de KE5FX website) Stay tuned to this reflector, lotsa interesting discussions. For me, it all started when I needed better than 1 Hz accuracy to monitor the 137 KHz band for local experimental activity. the 10 MHz from the GPS/DO was the external reference to the HP-3336B synthesizer as a RF test signal to calibrate my RX (IC-706MK2 and a IC-703+) and PC soundcard. Spectrum Lab PC software has a provision to calibrate the PC soundcard, for greater accuracy, but you have to have a very accurate signal source. Then there are the FMT-Nuts, frequency measuring contest nuts, who are getting better than 1 milliHz frequency measurement accuracies on intercontinental (US) HF communications !! I was also doing LORAN-C receiving and could achieve Cesium accuracy, at least 2 orders of magnitude greater accuracy than a GPS/DO. But US/Canadian based LORAN went off the air, but it is still available in Europe. I do not know where you are located, so maybe LORAN has potential for you. AUSTRON made a variety of LORAN-C receivers, 2100F, 2100(R), 2000, etc Stanford Research Systems (SRS) also made the FS-700 Because they are useless in the US, pricing on Ebay has dropped. Stan, W1LECape Cod FN41sr On 6/3/2012 2:19 PM, Chris Wilson wrote: 03/06/2012 19:09 Thanks for the great replies! My immediate need is to check some used test equipment I have bought, a Racal dana 9908 counter and a Marconi 2019A signal generator. They don't agree with one another! I was going to get a Thunderbolt unit and PS, but my friend mentioning noise got me worried. I may have a play with some SDR gear and I know they can be locked to a standard i you have one. Longer term my aim is to have a play with microwaves, which is what this friend is into, and maybe he has a particular issue with noise with sort of multiplication he is using? The fact that a GPS reference can be always on and locked to a reference that someone else maintains, if I understand things correctly, if simplistically, appeals. I am happy to be guided though, and I suppose I could always get a different type later if the specific need arose, although I am not made of money ;) Thanks! ___ 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] FS700 antenna
The classical approach: Look at the spectrum and notch or filter out what is not wanted. The FS-700 does have a set of filters and a front panel LORAN output (w/gain) to monitor with a spectrum analyzer for filter settings. I like the AUSTRON model 2048 LF Multifilter, just like a 1X4 RF multicoupler with a series of 8 notch filters for ~70 thru 130 KHz, with a peak indicator and a spherics indicator light. Notch filters can be switch selected on the front or some are on the real panel. For intermittent signals like noises, the peak indicator lamp gets my attention. Stan, W1LE On 5/5/2012 7:23 AM, Poul-Henning Kamp wrote: In messageE95F2CE5F1BA47B0A959AE061D4B9677@athlon, Ulrich Bangert writes: The effect stopped to appear from the very moment when the antenna was put out of the house in a distance of abt 20 m. While the effect is still not completely understood there are at least 2 possible reasons: It is far more likely that you have a switch-mode power-supply in your house which wanders over the 80-120 kHz frequency band in a very noisy way. ___ 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] Ashtech 3DF GPS
On more or less of a whim, I found and bought an Ashtech 3DF GPS. The interesting thing about this particular GPS is that it uses four separate GPS antennas mounted in a diamond pattern about 1 meter on a side and can compute not only the usual stuff, but also heading, roll, and pitch angles. I had heard of this being possible, but never actually seen it done. There are no accessories included with this unit, other than the power cord. Does anyone know where I can find a manual for it? Will this GPS work with just four ordinary active antennas or are the antennas special? Given the complexity of the additional data massaging it does to extract the angular data, does this also mean that it will have more accurate position and or timing performance? Does it need all four antennas to be able to do anything at all, or can it compute position and time with just one antenna connected? Thanks, Stan ___ 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] LORAN-C
Hello The Net: LORAN signals are still being received at a 89700 microsecond GRI. I concur with others that there is only one station transmitting the master(M) and the slave(X) signals. My SRS FS-700 Rx shows equal received signal strength for both signals. Reports indicate the transmitter is at the old Coast Guard LORAN engineering site at Wildwood NJ. Since I turned the equipment on last Sunday night, I have had continuous lock on the FS-700, Austron 2100, and a 2100F. Compared to the GPS/DO 10 MHz from the T'Bolt, I am getting accuracies to the mid -13s, as indicated on the FS-700 phase meter. Next step is to lock up the signal on an oscope, triggered by an accurate 11.148272 KHz signal ( reciprocal of 89700microsec). That way I should be able to see the pulses and the E-LORAN experimentation. My set up at home uses a 40' high delta loop antenna, 2 orthogonal loops terminated on the top with a 600 ohm resistor, a ARR preamplifier with battery at the antenna , a RG6 coax run to the shack, Astron 2084 multicoupler, then the receivers. Stan, W1LE Cape Cod FN41sr z ___ 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] LORAN-C
Hello PHK, I will use a HP-3336C with the station 10 MHz (GPS/DO) reference. Typo: trigger should really be 11.148272 Hz instead of KHz ! Stan, W1LE On 5/1/2012 11:27 AM, Poul-Henning Kamp wrote: In message1158.12.6.201.135.1335885236.squir...@popaccts.quikus.com, J. For ster writes: Next step is to lock up the signal on an oscope, triggered by an accurate 11.148272 KHz signal ( reciprocal of 89700microsec). A HP5359A is great trigger-source for that. ___ 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] LORAN-C
Hello PHK, Thanks for the tips. I have not done this yet, so I am creeping along. I also have a 33120A with the the option 001 for using an external reference. Sounds like the arbitrary signal capability is the way to go, If I can not find an appropriate 2100/2100F output. Thanks Stan, W1LE Cape Cod On 5/1/2012 12:02 PM, Poul-Henning Kamp wrote: In message4fa006e8.5040...@verizon.net, Stan, W1LE writes: I will use a HP-3336C with the station 10 MHz (GPS/DO) reference. Typo: trigger should really be 11.148272 Hz instead of KHz ! You need a really amazing stable and noise-free trigger to lock onto a 5.5Hz (see below) sine at the required level of stability (~2usec). I used my HP33120A once, but its square output is made with a comparator on the sine wave, and has pretty bad jitter. Switching to saw-tooth solved that, defining my own arbitrary square-wave was even better, not sure why. You want 1/(2*.089700) = 5.574136 Hz, otherwise every other loran-c pulse will cancel out due to the A/B coding polarity. If you don't have a counter-based signal generator, consider stealing a GRI or FRI-rate signal from one of your loran-C receivers, I belive the AUSTRON 2000/2100 offers it on a BNC at the backside. ___ 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] Loran C back on
Rich, Thanks for the heads up. I will turn stuff back on. Stan, W1LE Cape Cod FN41sr On 4/29/2012 8:26 PM, Rich and Marcia Putz wrote: Hi all; Receiving Wildwood NJ GRI 8970 here in northern Indiana again today. FYI Rich ___ 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] LORAN-C at MIT
The young fellow in the white truck quoted me a price for the FS700 as 100$. My main interest was the ovenized 10 MHz source inside. I did not see the simulator. That would of tweaked my interest... I strolled on, looking for the food vendor Stan, W1LECape Cod On 4/15/2012 3:52 PM, J. Forster wrote: Some did. Possibly not all. I know a local time nut who bought one. There was some other, older, Austron stuff (2 pieces) that had not sold by about noon. Before you ask, I do not know the seller. - FWIW, I asked about the price early on. He didn't know and was playing on eBay with his iPoo to get a price. I told him LORAN was defunct and he didn't seem to believe me, so I voted with my feet and shopped elsewhere. At that time he had 3 2100Fs in a 4 or 5 foot rack in a box truck, plus some loose stuff. -John === Silly thought, but do you know if the 2100F units sold or not. I'm interested at that price as Loran still good in UK (plus I used to sell these when I worked for Austron, and would be nice to actually own one). Rob Kimberley -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of J. Forster Sent: 15 April 2012 19:41 To: time-nuts@febo.com Subject: [time-nuts] LORAN-C at MIT At the MIT Flea today, I saw 4x Austron 2100Fs for about $25 each. There was also a LORAN-C simulator and a Stanford LORAN-C unit for $200. Seems the stuff is hitting the skids. -John ___ 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] pc loran c program
A google search shows: http://www.coaa.co.uk/ndbfinder.htm I will try it later this evening when I get back home... Stan, W1LE Cape Cod On 3/28/2012 8:53 AM, paul swed wrote: Never heard of one. Generally its a hardware decode On Wed, Mar 28, 2012 at 7:17 AM, Bill Richesbill.ric...@verizon.netwrote: Are there any pc programs that can decode Loran C id's? 73, Bill, WA2DVU Cape May, NJH ___ 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] pc loran c program
Thanks for the pointer. The DF6NM Grabber shows the active GRIs: http://www.alice-dsl.net/df6nm/LoranView/LoranGrabber.htm Interesting he calls 89700 as Wildwood vice Dana or Seneca. Stan, W1LE On 3/28/2012 11:45 AM, ALAN MELIA wrote: Peter Martinez G3PLX wrote some software which I think used GPS 1pps sync to receive Canadian eastern stations in the UK and monitor variations in time of arrival.I dont know that it produces IDs I belive that was derived from the GRIs.I think )Peter named the technique clicklock and several others added embellishments. I used one of these for measuring Loran-C sidebands as heard way up on 136kHz (an amateur radio band in Europe and the rest of the World) Peter lost interest in this and moved on, but copies may still be floating around o the web. Markus Vester DF6NM runs a site that observes and records Loran transmissions worldwide. I dont have the URL in this PC but a google of his name and call + loran should yield something. I believe Markus's program is feely available for amateur use. Alan G3NYK --- On Wed, 28/3/12, Stan, W1LEstanw...@verizon.net wrote: From: Stan, W1LEstanw...@verizon.net Subject: Re: [time-nuts] pc loran c program To: Discussion of precise time and frequency measurementtime-nuts@febo.com Date: Wednesday, 28 March, 2012, 15:45 A google search shows: http://www.coaa.co.uk/ndbfinder.htm I will try it later this evening when I get back home... Stan, W1LE Cape Cod On 3/28/2012 8:53 AM, paul swed wrote: Never heard of one. Generally its a hardware decode On Wed, Mar 28, 2012 at 7:17 AM, Bill Richesbill.ric...@verizon.netwrote: Are there any pc programs that can decode Loran C id's? 73, Bill, WA2DVU Cape May, NJH ___ 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] Loran Signals
Rich, Thanks for the update. I suspect the GRI rates are part of a receiver's firmware look up table, which led me astray. Stan, W1LE Cape Cod On 3/28/2012 9:52 PM, Rich and Marcia Putz wrote: Hi all; I exchanged an email with a gentleman from UrsaNav and he indicated that transmissions were eminating(sic) from Wilwood NJ and that they were dual rated to look like Dana and Seneca. This explains why the signals level are much lower than they were here in Indiana then when Dana was on the air. And as the article stated he also mentioned different modulation schemes that may not be able to be locked to by conventional receivers,ie. FS-700s 2100Fs. UrsaNav does offer their SDR receivers that will recover the appropriate timing information, we shall see where this leads. Regards; Rich ___ 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] LORAN C on at 0845 EST
Was receiving 89700 microsecond GRI last night, but RF has dropped out now. Tried to copy the NJ station possibly on 99300 or 99600 GRIs, but no copy/lock here. Will continue to search. Stan, W1LECape Cod FN41sr On 3/27/2012 8:50 AM, paul swed wrote: ___ 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] LORAN C on at 0845 EST
89700 GRI is locked up nicely on the FS700. The Austrons are still searching for 99300 and 99600, the old Wildwood, NJ GRIs, no lock yet. Plan it to hook up a scope and monitor the wave form for the reported eLORAN info. Will continue to monitor. Stan, W1LE Cape Cod On 3/27/2012 9:18 AM, paul swed wrote: Also note that at times the freq accuracy goes out of whack. This may be due to some modulation behavior and the SRS reaction to it. Very clearly they shut the system down. Its not a guaranteed 24 X 7 at all. Weekends are off. On Tue, Mar 27, 2012 at 9:06 AM, Stan, W1LEstanw...@verizon.net wrote: Was receiving 89700 microsecond GRI last night, but RF has dropped out now. Tried to copy the NJ station possibly on 99300 or 99600 GRIs, but no copy/lock here. Will continue to search. Stan, W1LECape Cod FN41sr On 3/27/2012 8:50 AM, paul swed wrote: __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/** mailman/listinfo/time-nutshttps://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-nutshttps://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] LORAN C 89700 dropped carriers at 1615 EST after a solid 3 days
Interesting. My FS700 also automatically reacquired. But the Austron 2100 and 2100F had to be manually reset to acquire again, after the short outage. How did you determine there was a short lived other station in the chain ? Other than manually going to the screen that shows the additional activity ? I was not able to hear/lock onto 99600 nor 99300 GRIs, (possibly Wildwood, NJ). Are there any others I should listen for ? Stan, W1LE Cape Cod On 3/22/2012 4:55 PM, paul swed wrote: More interestingly the FS700 reacquired automatically! Never seen that before. On Thu, Mar 22, 2012 at 4:53 PM, paul swedpaulsw...@gmail.com wrote: Interesting just fired up a general coverage rcvr and LORAN C can be heard but not that strong. It does appear to be 89700 still as the austron is settling in quickly On Thu, Mar 22, 2012 at 4:49 PM, paul swedpaulsw...@gmail.com wrote: Best run yet, 3 solid days of operation and I was able to log various local references as compared to a HP3801 and Tbolt. Only 2 stations generally on the air. 89700 Master and X, but an unidentified one came up for a short bit in the 4th position Regards Paul WB8TSL ___ 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] Wednesday AM Update: LORAN-C Reception on Cape Cod
Don, you are absolutely correct, Dana is in Indiana and not Illinois. Austron offered a model 2084 LF Multicoupler, with 1 antenna input and 4 outputs. Could be AC or DC powered, with peak and spherics indicator lamps, and 8 each tunable notch filters from 70 thru 130 KHz that can be individually switched inline or out. I should be able to take the FS700 Loran-C (RF) front panel output, feed the multicoupler, then feed a Austron 2100F and the 2100 to monitor other GRIs. Just have to find my notes on how to set up the older RXs. I had lock onto 89700 microsecond GRI overnight and using the internal FS700 phase meter I got as low as 3E-13 for delta frequency between the Loran-C and the T'Bolt GPS/DO. I am locked onto the Seneca, NY station. Stan, W1LECape Cod FN41sr If I am not mistaken Dana is not in Illinois it is in Indiana. Still receiving at 2200 hrs local. Don _ ___ 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] LORAN-C Reception on Cape Cod
Hello The Net: (especially the LORAN-C listeners) Right now my SRS FS700 Loran-C receiver is locked onto a signal. GRI 89700 microseconds station: AUTO (M) location: DANA, IL USA Receiver locked Tracking Loran-C signal Receiver gain: 77dB Noise margin: 39 dB Loran Freq offset: -1.1E-10 Phase: -17.9 deg Stations found: (ident: Amp in dB) M59* X56 Time since lock: 0:21:40 ( had lock overnight, but with an error so I did a new search) Length last unlock: 0:10:42 Signal status: a r b n o I am using the standard SRS active whip antenna about 7' above ground in the back yard. Receiver firmware is 1.19 As time permits I will compare the Loran-C to the T'Bolt GPS/DO, with the Tracor 527E. It is nice to have Loran-C signal to play with. The Nantucket Loran-C station was a bout 40 miles away. Almost a Cs reference in my shack. Stan, W1LE Cape CodFN41sr XXXx ___ 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] LORAN-C Reception on Cape Cod
The Wildwood, NJ tech center could be part of the 9930 or the 9960 chains. It was only sporadically on. As testing dictated, not a normal operation site. I have not listened to these GRIs. I hope to configure to use the single antenna with multiple Loran-C receives. Have to ponder that action Difficulty is that one receiver has to be dedicated to a single GRI. 89700 (microsecond GRI) is till coming in with Dana, IL as master and Seneca, NY as the X slave. Stan, W1LECape Cod On 3/20/2012 4:09 PM, Bill Riches wrote: Seems that Cape May NJ is on also - is that part of the chain? 73, Bill WA2DVU ___ 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] military frequency standard pin out??
Good Morning Paul, Sounds like a very old military unit. Probably 60's vintage. before the 13 digit NSNs. national stock number (NSN) is probably 6625-078-4718. I do not recall what the 2N could mean. a modern NSN would look like 6625-00-078-4718 or 6625-01-078-4718 Stan, W1LE on Cape Cod On 3/7/2012 10:45 AM, Paul A. Cianciolo wrote: Hello Folks, I found in my collection a frequency standard that I acquired mil surplus at one time. The model number of 2N6625-078-4718 internet search yields nothing on this number. The unit is a common looking one , approx. 4 x 3 x 4 with an aluminum cover that comes off. The cover has the layout of the parts. The connector has 6 coax outputs into a D type connector. It appears 3 pins for power 1 is ground that easy to see but the others are 2) a red white and black that leads to the circuit board 3) and a brown white and black also leads to the circuit board. I would like to fire this up, but not burn it up. Any ideas? Thank you Paul A. Cianciolo W1VLF http://www.rescueelectronics.com/ Our business computer network is powered exclusively by solar and wind power. Converting Photons to Electrons for over 20 years ___ 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] Any spare switches for Racal-Dana 1992?
The switches I've replaced in my Dana 1990 failed with the rubber cracking around the part that provides the spring. I think the first one that failed was shorted (which caused me to think that the processor was confused, as no other buttons worked until I found the one stuck down). So at least in my case, the conductive rubber did not need restoring, and the rubber keypad repair kits would not help. I have use the P12227SCT-ND switches from DigiKey and cut flutes into the round shaft with a Dremel. The switch buttons rotate freely with these switches, so you have to line them up carefully before putting the panel back on the PCB. Stan On Wed, Feb 22, 2012 at 5:13 AM, Sam li...@digitalelectric.com.au wrote: There is a thread at http://www.eevblog.com/forum/product-reviews-photos-and-discussion/racal-dana-1992-teardown/that has some detailed pictures of the innards of the switches, by the look of them a rubber keypad repair kit should work. http://parts.digikey.com/1/parts-kws/conductive-rubber-keypads-repair-kits Sam ___ 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] Using digital broadcast TV for timing?
Does anyone know if ABC used Cesium or just Rubidium standards? I have the Tracor 304SC shown in this URL: http://www.bdairfield.com/stan/time-nuts/Tracor-304SC/IMG_4216.JPG I assume the SC in the model number stands for the color subcarrier frequency for NTSC: 3.579545 MHz. The boards seem to be mostly hand wired on turret pins, so I don't think they made very many. I usually try and clean up front panels and remove non-manufacturer stickers, but I thought the ABC New York, Rubidium 1 and ADJ May 21 84 were cool, so the stickers stayed. Under the top cover is a tag that says: Model 304-SC S/N 127 Frequency relative to USFS -300 X 10 ** -10 DATE 10-11-68 The front panel has a 5 MHz output, while the back has a 3.58 MC output. I'm told this unit no longer works. KO4BB does not have the manual on his site, if you know where one is, send me a link off list. If some folks know more about the history of network broadcast color subcarrier frequency standards, I think it's an interesting subject that would be worth hearing more about. Stan On Wed, Feb 8, 2012 at 7:07 PM, paul swed paulsw...@gmail.com wrote: All gone these days in the US. Indeed I can speak to the CBS network it was driven by CS references in the 80s and 90s. I used CBS for aligning my references Xtal oven oscillators that were never ever turned off in a large facility that uplinked all 8 CBS regions and 22 other cable networks. Unfortunately few could get to that color burst signal as devices called frame synchronizers came into play from the 80s to the 90s. They would strip off that burst and insert the local reference of generally much lower quality. As far as todays digital TV signals they can contain significant jitter. But its actually trickier then that and I honestly have to say I am not sure that you might not be able to get something useful. Several interesting points. Many of the television transmitters do use GPS referenced sources. Its an interesting exploration. I simply don't have the time though. Regards Paul WB8TSL On Wed, Feb 8, 2012 at 7:38 PM, jerryfi jerryfi...@yahoo.com wrote: A bit off topic, but historically related back in the 70's, I tapped off the color burst oscillator in my TV (a Heathkit) to get a 3.579545 MHz (315/88 MHz) source to calibrate my homebrew frequency counter. The TV's color burst oscillator was phase locked to the color burst signal on the broadcast signal (which was on the back porch of the hori sync signals). Supposedly, the networks were locked to Cesium standards traceable to NBS for LIVE broadcasts, such as news and sports. Taped programs, of course, were not usable as an accurate source. In any case, that signal served my purposes at the time (providing a reference for calibrating my counter that was more accurate than anything else available to me). I'm not sure if, what, or where analog TV is still broadcast, but I think there are still a few stations (low power) around. You might still be able to use that signal, IF you can dig it out of your old analog TV. ;-) I do have analog tv's hooked up to my cable box - I suspect that live broadcasts would still have an accurate color burst, so maybe I think the other methods discussed here (ie, GPS) would provide easier and more reliable timing sources. ;-) Trying to locate the appropriate signal(s) in a digital TV today would be interesting. Just as a historical aside. Jerry Finn Santa Maria, CA Date: Tue, 7 Feb 2012 18:01:26 -0800 From: Chris Albertson albertson.ch...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: [time-nuts] Using digital broadcast TV for timing? Message-ID: cabbxvhvb3skzumx+bdykttesgzuf2k5hsjwypdkk+rqoarx...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 GPS requires a good view of the sky, Hard to do in say the 7th floor of a 40 story building if you have no windows. I'm wondering about using the new digital TV signals for timing. I'm pretty sure there is time code in the signal and I'm pretty sure the bits are clocked at a very accurate rate. Also TV receivers are very easy to find and put hooks into. I'd bet the broadcast TV signal could be almost as good as GPS. The plan is to try and phase lock a local oscillator and use a very long time constant on the loop filter. I bet the TV transmitters are locked to GPS and over a long enough time are as good as GPS. Also in many cities there are many TV transmitters, should be able to take advantage of that. Before I try some experiments anyone want to tell me why I'm wrong? -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https
Re: [time-nuts] Morion MV89 output level?
Would it be better to apply heat the metal shell or to apply heat the bottom part with the I/O pins ? I would start using a propane gas torch. Heating quickly till I saw the solder flow. Stan, W1LECape Cod On 2/9/2012 6:04 AM, Azelio Boriani wrote: Don't be afraid and open up your MV89. I have done this with many MV201 without problems. ___ 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] US Army Frequency Standard
Possibly tuning up the mechanicals of a teletype set. Stan, W1LE On 1/24/2012 4:59 PM, John Howell wrote: Hi All, I recently obtained a curious Low Frequency Standard dating from the late 1950s. Its output can be switched to a number of frequencies from 10 to 190Hz, derived from a tuning fork. It is marked Signal Corps and US Army with a type number TS-65D/FMQ-1. Does anyone have any information about this unit, in particular what it was used for and why the strange negative going pulse output and specific frequencies. Thanks in advance, John H. ___ 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] HP5328A LEDS driver transistor
The 5328A manual I have shows a 3.5 V supply (looks like it is used just for the display). But with a bit lower Vce sat drops, I'd guess you get around 1 V across the 10 ohm segment resistors. Or only about 900 mA when all 9 segments are on (but at a low duty cycle). Did HP also use a 5 V version of the driver in some 5328A counters? Two possibilities for these transistor failures come to mind. If the clock controlling the scan dies, then one digit would be on 100% of the time. This would greatly increase the power dissipation of the unfortunate digit driver). If the counter is set for external reference and no reference is provided, does it fail to scan? The other possibility is that the transistors were from a batch that was below par in some area and this increased the chance of failures over time (incomplete passivation, poor die attach to the tab, silicon fracture propagation, fractures started from the shock of clipping off the tabs, poor intermetalics at the bond wires, ...). A lot of these causes would not affect all parts from a lot the same, so some parts could continue working considerably longer than others. Stan On Sun, Jan 22, 2012 at 9:01 PM, Charles P. Steinmetz charles_steinm...@lavabit.com wrote: Bob wrote: Specifying the digit scan transistor is a bit tricky, and often power dissipation is just not a concern. Why? Consider the duty cycle. A transistor switching one amp (a LOT for 7+1 segments) with a 0.6V saturation dissipates 600mW, but only when on. Given a 1/8 duty cycle that's 75mW average. Any stinkin TO-92 will handle that power all day long! Only an ultra-conservative design would use an exposed tab transistor, as expected for HP! OK, looking at the schematic 7 of the digit drivers have 7+2 loads (DP and annunciator LEDs). Each segment is driven from 5 volts through two saturated transistors and an LED. Assuming 0.6 + 0.6 + 1.7 V, each segment current is 0.21 A and the total digit current with all 9 segments lit is 1.89 A, for a digit driver dissipation of (1.13 W x duty cycle). With 9 digits, the duty cycle must be less than 11.1%, so the power dissipation will be around 125 mW worst case. As Bob said, any TO-92 will dissipate this with no difficulty. The problem is the current. You need transistors that can handle 1.89 A without sweating. The MPSU51 is rated at 2A continuous, and is not specified for pulse duty so there is no way to know how much if any more current it will safely handle at an 11% duty cycle. The fact that Chris has two bad ones may be taken to indicate that they were not hugely overspecified in this application. I would be looking at transistors rated for a maximum continuous collector current of at least 3 A, preferably more. Only a very few TO-92 devices fit this bill. I think my first choice would be the ZTX949 -- it has low saturation voltage and is rated for pulse current substantially in excess of the continuous current rating, and its pinout matches the MPSU51. I have used lots of them and they are very rugged. In stock and priced from $1.12 to $1.24 in singles from Digi-Key, Mouser, and Avnet. Best regards, Charles __**_ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/** mailman/listinfo/time-nutshttps://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] HP5328A LEDS driver transistor
A good source of replacement parts for test equipment is Sphere Research ( http://www.sphere.bc.ca/ ). They don't show any in stock, but you could email. NTE is a good source for replacement parts, but the NTE189 is really expensive ($26.73 from Newark and $30.59 from Mouser). For the cost of a couple of these you can get a whole 5328A (I have one or two on my shelf I'd sell for $50 if you are ever up in San Jose). I'd use a MJE171GOS-NDhttp://search.digikey.com/us/en/products/MJE171G/MJE171GOS-ND/919498 or 497-4829-5-NDhttp://search.digikey.com/us/en/products/2SB772/497-4829-5-ND/954133 from DigiKey (but as mentioned by others, watch the pinout, as most any power tab transistor will have the collector in the center, while the MPS-U51 is one of the few exceptions). You might also need to slim down the leads to fit the PC board. Stan On Sun, Jan 22, 2012 at 12:34 PM, Don Latham d...@montana.com wrote: NTE lists their equivalent as: NTE-189 See: http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search Newark has 262 of them :-) Don Chris Albertson I have an eBay HP5328A counter with two dead digits on the display. I figured out the problem was two dead transistors. I can swap transistors with a good digit and the problem moves. I'd not worked on LED displays before. Turns out only one digit is lit up at a time, they strobe the digits in sequence. The dead transistor is the one that controls the all the anodes in the 7-segment LED module. The service manual describes the transistor like this: part number = 1853-0326, description = TRANSISTOR PNP SI ... FT-50MHZ The p/n 1853-0326 cross references to a Motorola MPS-U51. The MPS-U51 data sheet matches the part that fails so I'm sure I got a correct cross ref. I took a photo of the dead transistor. It is on .1 perf board for scale. You can read the 3-326 p/n and see the Motorola M logo. http://www.dropbox.com/gallery/28915695/1/HP5328A?h=da35c1 I look up the spec in the mps-u51 and see it is a to-220 like case and can handle 1W. I'm really surprised it burned out as I doubt an LED requires 1W even if showing an 8. Reading the mps-u51 spec sheet I see it has a low saturation voltage. Maybe that is why the selected it as it is being driven by 7400 TTL logic that goes through a connector and has some resistors involved. Question: These seem to be hardtop find. Can anyone suggest a good sub Thanks, Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind. R. Bacon If you don't know what it is, don't poke it. Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts 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] HP5384A Freq Counter
Hello Rob and The Net: I like my HP-5384A and use it with a external 10 MHz reference from my T'Bolt. At a 10 second gate I can get 11 digits displayed, at 1 sec gate I get 10 digits displayed. The LCD is NOT back lit. Good to 225 MHz.With HPIB. It will operate off of a external 9-15 VDC, in place of the AC power. I also like the FLUKE PM6685/016.I use a external 10 MHz reference. LCD is backlit, GPIB, resolution to 12 digits displayed, with 2 MSBs truncated as overflow, with a 10 second gate. Longer chassis than the HP. The PM6685 comes in a Rb version for internal reference. The HP was 100$ and the FLUKE was 300$ Original goal was a HP-53132 or a SRS 620, but today they are tooo pricey for me. Stan, W1LE on Cape CodFN41sr On 1/18/2012 5:45 AM, Rob Kimberley wrote: I've seen one of these advertised, and wanted to know if any fellow Nuts had any experience. Thanks Rob Kimberley ___ 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] free HP Test and Measurement catalogs
Eight catalogs covering 1993 through 2000 in great shape. Preference given to someone who can pick them up in Mountain View or San Jose, California. Free to a good home. (If I end up mailing them, expect to pay actual postage plus a few bucks for packaging.) Please only reply off-list (if you reply to the whole list, I will not give them to you). Stan ___ 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] NavSymm - Ericsson GPS Timing Receiver
Hello Al, I hope you and yours have a Happy New Year. I would start with the radome removal. Were those screws or pop rivets on the edges ? Hopefully our UK members can assist with documentation. Stan, W1LE Cape Cod On 12/30/2011 6:54 AM, Alberto di Bene wrote: I received as a gift from a friend what looks like a timing GPS antenna integrated with the receiver, with optical links for Rx and Tx (?). This the label on the box : http://dl.dropbox.com/u/15089947/NavSymm2.jpg And these are the upper and lower sides of the unit : http://dl.dropbox.com/u/15089947/NavSymm3.jpg http://dl.dropbox.com/u/15089947/NavSymm1.jpg Does anybody perhaps have a bit more information on this GPS receiver, and possibly suggest a practical use ? For example, would it be feasible to open the unit and recover maybe the 1pps signal, and some sort of data strings ? TIA 73 Alberto I2PHD ___ 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] Thunderbolt?
Looks to be a reasonable solution. Not spectacular, cost wise . just reasonable. Plug and play with multivoltage PS, active antenna, and T'Bolt. All you will need is Lady Heather to whip things into shape. Stan, W1LE Cape Cod On 12/28/2011 7:50 PM, Peter Gottlieb wrote: I am interested in increasing my lab accuracy from the Rb units by using a Thunderbolt. I see kits advertised on feebay, such as http://www.ebay.com/itm/270515147719 and I was wondering if this was a good choice. I would certainly have to get a compatible antenna anyhow, and the power supply keeps me from having to dig through my storage to find one. Is this a decent way to get set up or are there better/cheaper ways? TIA, Peter ___ 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] Thunderbolt?
Looks to be a reasonable solution. Not spectacular, cost wise . just reasonable. Plug and play with multivoltage PS, active antenna, and T'Bolt. All you will need is Lady Heather to whip things into shape. Stan, W1LE Cape Cod On 12/28/2011 7:50 PM, Peter Gottlieb wrote: I am interested in increasing my lab accuracy from the Rb units by using a Thunderbolt. I see kits advertised on feebay, such as http://www.ebay.com/itm/270515147719 and I was wondering if this was a good choice. I would certainly have to get a compatible antenna anyhow, and the power supply keeps me from having to dig through my storage to find one. Is this a decent way to get set up or are there better/cheaper ways? TIA, Peter ___ 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] Software for Tektronix FCA3100 Counter -- AKA Pendulum CNT91
In a message dated 14/12/2011 09:45:33 GMT Standard Time, mag...@rubidium.dyndns.org writes: TimeLab should be able to work with it as the CNT91 supports TalkOnly (and TimeLab only supports TalkOnly counters for generic types). I can't use my CNT90 with TimeLab, as it doesn't have TalkOnly mode unfortunately. Tektronix and Fluke re-badged them. Spectracom bought Pendulum and in the end they closed the Stockholm office and the Pendulum design-team dispersed. -- Thanks Magnus I'd downloaded version 0.979 in November, but because the release note for that version stated Added driver for HP 5335A counter I just assumed that any device would need a machine specific driver. That'll teach me not to do my homework properly, and not to jump to unwarranted conclusions:-), I'll give it a try. I was aware of the re-badging and of Spectracom taking over Pendulum, but wasn't aware of the closer of the Stockholm office and the loss of the design team, that would seem to be a very short sighted business decision:-( Regards Nigel GM8PZR -- Hi Nigel and Magnus, Do you know whether TimeLab will work with the CNT81 counter? If so, is Version 0.979 still available anywhere? Thanks, Stan ___ 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] PCMCIA GPIB Board and cable FS
Hello Paul, I hope you and yours have the very best of this holiday season. After I got my Prologix USB/GPIB adaper, I let go all of my other gpib adapters. I have not looked back Stan, W1LE on Cape Cod On 12/7/2011 11:52 AM, Paul A. Cianciolo wrote: Folks, I have a National Instruments PCMCIA GPIB card that I have been using with TimeLab on my ACER laptop. With the addition of the Prologix USP/GPIB I no longer need the PCMCIA. Drivers are free down load on the NI site. Let me know if there is any interest. PauLC W1VLF ___ 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] Cambrideg Thermionics Freq Measurements...
Hello The Net: The frequency measurement division broke off, but was still in Cambridge in ~2007. I got a call from them about a 19 KHz pilot tone generator that was off freq at a FM/NCE station on Cape Cod. After replacing the Optimod ($100) xtal, all was fine. I will eventually think of that organizations name, but for now the POC was Richard. Yes, his techniques were cryptic, but I doubt if his techniques exceeded the capability of any time or freq nut's capability. I would start with a search at SBE for such freq measurement organizations. Stan, W1LE Cape CodFN41sr On 10/15/2011 10:57 AM, J. Forster wrote: Cambridge Thermionic was on Concord Ave, just east of the Fresh Pond circle. The building is now a storage warehouse. They were mostly making screw-machine components by the early 60s. They had a vast array of stake-in terminals and similar stuff. Very good product, IMO. You could get damn near anything you could imagine in terminals from them, uninsulated and insulated. They also made a bunch of other electronic hardware like coil forms. Again, very good quality. The other thing they made was thermoelectric heat pumps and products using them, like small ice bath references for thermocouples. I suspect this was related to their expertise with ceramic-metal attachment. At some point (70s? 80s? 90s?) they moved someplace else and changed their name to Cambion. Best, -John Les, I do sort of remember Cambridge Thermionics. I came across their name back in the late 60's or early 70's when I first got in the frequency measurement business. I think I also remember seeing their name as a parts supplier in some WW-2 military radio manuals. Burt From: Lester Veenstrales...@veenstras.com Bert: I wonder if you happen to remember a company called Cambridge Thermionics. Located in Cambridge MA, they made ceramic slug tuned coil s but in one corner was an individual with the off air frequency measuring service. As a duty engineer up the read at WCOP in Lexington, I frequently would get calls from him to tick a dummy plug in the modulator input patch (turning the board gain down was too much residual noise), so he could measure us, and more often, to remove the carrier for a few seconds so you could measure some one co-channel. He never wanted to talk about how it did it, and absolute would not accept visitors who might learn his dark trade secrets. I had assumed that these days a GPSDO would remove the need for the monthly freq service but I guess not. I stood my last midwatch at COP and reported to the Boston Army station for induction into the USN the next morning. 73 Les Burt I. Weiner Associates Broadcast Technical Services Glendale, California U.S.A. b...@att.net www.biwa.cc K6OQK ___ 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] Active LORAN antenna
Hello Ulrich, There are 13 each, double pages of schematics for the FS700. Most of my pages are marked up. When I got the manual, before I had the hardware, I read it thru and I highlighted each adjustment in the circuit to get a better understanding. Not much of a plot, but a pretty good story. If you need a specific page, I can scan each 1/2 page and you can paste together on receipt. All I have is a simple A size Cannon scanner, but I can scan to high resolution. The other alternative is to get a new manual from Stanford Research Systems for ~ 35$ Shipping may be a killer. Please advise. Stan, W1LE Cape CodFN41sr On 8/31/2011 6:53 AM, Ulrich Bangert wrote: Gentlemen, I would like to thank you all for your help in this affair. In the meantime we have both built the antenna according Stan's circuit and it seems to perform well. It seems however that the antenna needs to be put a bit away from the receiver itself because otherwise some kind of self-oscillation is observed. ___ 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] Active LORAN antenna
Hello UL, My SRS active antenna is internally potted in resin, so tracing the circuit is difficult. I was able to chip away the PVC white housing and some of the black potting material to get at the antenna input terminal. Then I repackaged it with a new CB antenna. Living on Cape Cod, quite near to the former Nantucket Loran station, I can only rarely receive some of the European stations. The schematic in the manual shows a switch or a jumper for the gain reduction. So, the schematic is probably an old version, and all bets are off as to what the production models, we have, consist of. I did buy the manual form SRS and the active antenna schematic shows a 2N5951, not the 2N5991 you mention. My schematic is a rev B, Document Number FS700-14 This document in not dated. The frequency selective L-C filter network is different, see attachment. If the attachment does not get thru, please send your direct e-mail address. Stan, W1LE Cape CodFN41sr On 8/26/2011 6:00 AM, Ulrich Bangert wrote: Gentlemen, my friend Frank and I both miss the matching actice antenna for our Standford Research FS700 Loran frequency standards. We also do not have a schematic of it. Nevertheless we have tried to re-engineer the circut from the part's list and the circuit description in the FS700 manual. Our result is shown in the accompanying schematic.pdf. The generator in the left in conjunction with the 10 k resistor represents the expected high footpoint impedance of the very short (3 m) antenna. The VDD in the right in conjunction with the 100 ohms resistor represents what it believed to be inside the FS700. Not shown here is a 100 k resistor that may be included between the filter output and the 7 k resistor to form a 30 dB divider together with it. Also not shown is a 390 micro henry inductance which's impact is not to be found in the circuit descripion. Also not shown is a small neon bulb for overvoltage protection. The ac analysis shows that the overall filter function is well around 100 kHz. But it seems as if the fet (a 2N5991 in the original) would not have enough gain to counteract the overall damping included in the front end let alone to deliver some additional gain for the receiver's front end. We both feed the receiver currently with dipoles for 80 m ham radio and a resistor that makes the receiver think the active antenna is connected. The receiver has a possible total of 130 dB gain and my receiver says it uses 94 dB gain while Franks receiver says it uses 102 dB gain. The noise margin is also a bit better on my location. However, if one looks at the manual f.e. at page 17 one could get the impression as if a receiver gain of 75 dB may be considered much more normal as our values. Instead of improving the reception everything gets even worse if the active antenna is connected. I should also note that my qth is only 200 km away from SYLT (our German Loran station) while Frank is even 70 km nearer to it. Questions: 1) Anyone an idea what we are possibly doing wrong? 2) Anyone an idea for the 390 micro henry inductor? 3) Anyone own the original schematic? TIA for your help Ulrich Bangert www.ulrich-bangert.de Ortholzer Weg 1 27243 Gross Ippener ___ 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. attachment: FS700 Active Antenna0050.jpg___ 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] No more 60Hz, How do I discipline 120VAC 60Hz from a UPS
Hello Mitchell, I believe this is a W. F. Sprengnether Instrument Co. Inc. TS-100 (presumably used for driving seismometers). I have a pretty much identical unit and it remained a mystery until I took the rack panel off to reveal the logo on the front of the chassis. http://www.bdairfield.com/stan/time-nuts/Sprengnether-clock/IMG_4547.JPG I think that when I got my unit, the cover was flipped around so the top overhang was on the back. This way the overhang does not run into the rack panel, but it puts the frequency adjust hole on the wrong side of the unit. In the picture above, you can see the (presumably) OCXO with its cover removed. There is a heater around the outside of the crystal housing. What I presume is the dividers have a silicon compound dribbled over them. In this area is 10 red modules (at least one of which is 7 pins and marked Erie 22254A). The circuitry that presumably drives the transformer for the 60 Hz output includes a 2N1302, a 2N1303 and three power transistors that I think are marked 2N456A. I don't think I'd put mine in my bedroom. It clicks pretty loudly every minute. Stan -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Mitchell Janoff Sent: Sunday, June 26, 2011 3:06 PM To: time-nuts@febo.com Subject: Re: [time-nuts] No more 60Hz,How do I discipline 120VAC 60Hz from a UPS Last year I picked up a frequency standard that inputs 120VAC (or 12V DC) and drives a 6 0Hz Synchron motor based clock and also has a 120V 60 CPS output on the back. I wasn't sure what I was going to do with it, but now I know I can run my old telechron synchronous clocks with this when the power companies stop the 60Hz. There is no manufacturer's name on the unit, but maybe a list member can identify it from the pictures at: http://www.telechron.com/60CPS/60CPS.html ___ 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] TEK P6430 temp probes are available
Hello The net: For use with your Tektronix thermometer/temperature monitor: 5 each TEK 010-6430-00, P6430 Temp Probe, Status: unknown, found in my garage when cleaning out. Looks like a scope probe with a LEMO connector on one end. For postage to you, otherwise Free, first come first served. For use when you are monitoring the temp of your xtal oven. Stan, W1LE Cape Cod ___ 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] TEK P6430 temp probes are available
Thanks for the interest. 5 each are spoken for. Stan On 6/1/2011 8:48 PM, Stan, W1LE wrote: Hello The net: For use with your Tektronix thermometer/temperature monitor: 5 each TEK 010-6430-00, P6430 Temp Probe, Status: unknown, found in my garage when cleaning out. Looks like a scope probe with a LEMO connector on one end. For postage to you, otherwise Free, first come first served. For use when you are monitoring the temp of your xtal oven. Stan, W1LE Cape Cod ___ 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] Another mystery Wenzel OCXO
Dan, I have been watching these for awhile, for a potential propagation beacon on 6M. My project has not reached critical mass yet. Some speculation: The +12VDC DC power connection and GND are the input power for the oscillator and the oven. One coaxial connector is the output at RF, 50 MHz. One coaxial connector is the input VCO tuning voltage ~ 5 VDC, (either +/- 5VDC or 0 to + 5 VDC). The other coaxial connector may be for a oven monitor output signal, either a analog signal for oven temp or oven ON/OFF status. But I have no idea which female SMA does what. If you find out the details, please advise us all. Stan, W1LE Cape CodFN14sr On 5/28/2011 2:18 PM, Dan Rae wrote: I found today at the swap meet some nice looking Wenzel OCXOs. Pictures can be found at item 180511097522 on eBay, although his description is incorrect, they certainly are not Voltage controlled, and do they have any means of adjusting the frequency. They have a strong similarity in appearance to the Wenzel ULN series, but have no trimmer and do have the three +7 dBm SMA outputs. I have never had any luck in getting data on any of their 500 series units but hoped that someone might know something? Dan ___ 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] smallest rubidium
I also top post... Consider the Symmetricom model X72 Rb. I can fit 2 each in my shirt pocket. Some variants are programmable and spec'd for 12 VDC operation. I did have problems with one unit that had microphonics when used with a DEMI/N5AC microwave LO synthesizer in a DEMI 10 GHz transverter. For a 20 MHz reference used in a HF transceiver I would consider a ISO Temp TC/VCXO at 10 MHz and double it with suitable filtering. Provide a pot to easily net it as well as a additional 10/20 MHz output to feed the counter. The ISOTemps have been going for 30-50$, so it is a cost effective solution and it may be stable enough for any HF operation. If used with a transverter, you will still have to fight that LO drift. Unless it is synchronized with the 10/20 MHz reference. Stan, W1LECape CodFN41sr On 5/23/2011 11:36 AM, Mike Feher wrote: For what it is worth, I agree 100%. I have also been top posting for over 30 years. A lot of times when I open a thread, and, do not see anything but previous posts, I delete the whole thing. Why should I go all the way to the bottom to see what someone may have said, or, to even see if there is something there. Unfortunately, I probably miss out on some good info this way, but, I do not have the patience to sort through it all. If I have been following the threads then I know what has been said anyway. If I have not, the latest top reply might peak my interest. Another thing that really annoys me is when people comment inside of a previous post, about every paragraph/sentence or so. Most of the time it is difficult to tell what was the previous post and when the new response begins. Just put it all on top. Regards - Mike Mike B. Feher, EOZ Inc. 89 Arnold Blvd. Howell, NJ, 07731 732-886-5960 office 908-902-3831 cell -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Rob Kimberley Sent: Monday, May 23, 2011 9:30 AM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] smallest rubidium I couldn't resist commenting about how top posting annoys you. Interestingly, I have always top posted ever since my first email way, way back. Everyone else I dealt with in business did it that way. It wasn't until I got involved with groups like this, that it apparently became a problem. It always seemed logical to me to have the answers to a question at the top i.e. the most recent comment in the chain. No doubt I'll get a lot of replies both top and bottom about this... :-) RK ___ 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] What are these towers?
1. Towers are painted so they may be over 200' tall. 2. Two different tower height variations, 2 each shorter and 9 each taller.. 3. Interesting symmetry between the shorter and taller towers. 3. In a congested residential area. Probably too noisy for a Rx site. 4. Gated entry on asphalt driveway. I can not see if the fence has tiered barbed wire on the top. 5. Some kind of phased array of verticals, maybe MW (AM band) thru HF 6. Maybe commercial, unattended TX remote site, no vehicles in sight in the antenna filed. 7. Interesting shadow, must have been taken ~ local noon time. 8. Maybe a gov radio site. Stan, W1LE On 5/20/2011 5:54 PM, Jason Rabel wrote: 29° 59' 34N, 95° 28' 24W ___ 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] USB and Mouse conflict persists
Hello Joop, Thanks for the pointer. I am slowly achieving the confidence to tackle my XP Pro registry. Stan, W1LE On 5/12/2011 4:12 AM, Joop wrote: quote: [On the tab Port Settings click Advanced and in that window uncheck the box next to Serial Enumerator] This is a feature of the FTDI driver. Not something generic. What worked for me was to disable (postpone actually) the Windows PnP device enumerator for a serial device. It works for hardware serial ports as well as the USBtoRS232 converters. This can be done with a registry patch which adds the Skipenumerations registry entry. Setting this to a big value skips the possible detection of any device (such as a serial mouse) on a COM port. Search the net for details. E.g. here : http://support.microsoft.com/default.aspx?scid=kb;en-us;283063 Lots of the USBtoRS232 converters do not contain EEPROM to store a unique serial number. Without it Windows cannot be sure you unplugged the same device as you re-plugged in another USB port. Its behaviour is to assign it a new COM port number. Re-plugging the converter in the original USB port should bring back the same COM port number. You will need to patch the registry again if a new COM port number is assigned. If you want to avoid this, look for USBtoRS232 converters that have the option to program a USB serial number (like the FTDI FT232R based ones) Joop - pe1cqp ___ 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] USB and Mouse conflict persists
Hello The Net: Since my motherboard died, I want to transfer the T'Bolt to another computer. I am running XP Pro with a USB laser mouse and a USB to serial adapter to the T'Bolt. The USB to serial adapter drivers are on hand and they loaded nicely, with the computer setting the USB port to COM10. System worked fine with Lady Heather on the original computer. I tried using the mod to theboot.ini file.I added: NoSerialMice:COM10 on the very first line. To date I still have a conflict with the mouse I can move the COM port assignment for the adapter, but I can not find what COM port the mouse is using. The mouse does use IRQ 12. USBView software does show which USB ports are used, but not the mouse COM port assignment. How do I fix (permanently assign) the Com port used for the mouse, so there is no conflict ? Thanks for the help, Stan, W1LE Cape CodFN41sr Zz ___ 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] USB and Mouse conflict persists
Hello David, The symptoms include: eratic mouse cursor that stabilizes (corrects) after I disconnect the USB port to the T'Bolt. Stan, W1LE On 5/11/2011 9:02 AM, David J Taylor wrote: Hello The Net: Since my motherboard died, I want to transfer the T'Bolt to another computer. I am running XP Pro with a USB laser mouse and a USB to serial adapter to the T'Bolt. The USB to serial adapter drivers are on hand and they loaded nicely, with the computer setting the USB port to COM10. System worked fine with Lady Heather on the original computer. I tried using the mod to theboot.ini file.I added: NoSerialMice:COM10 on the very first line. To date I still have a conflict with the mouse I can move the COM port assignment for the adapter, but I can not find what COM port the mouse is using. The mouse does use IRQ 12. USBView software does show which USB ports are used, but not the mouse COM port assignment. How do I fix (permanently assign) the Com port used for the mouse, so there is no conflict ? Thanks for the help, Stan, W1LE Cape CodFN41sr Stan, A USB mouse does not use any COM ports. What are the exact symptoms you are seeing? 73, David - GM8ARV ___ 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.
