Re: [time-nuts] Best test setup?
I have had no problem with a Gpib to RS-232 converter. On the tau: not really an issue, just divide the number of lines in your data file by the measurement time. Most programs will allow you to enter any sample tau. bye, Said In a message dated 12/29/2009 14:36:53 Pacific Standard Time, jmi...@pop.net writes: I tend to see GPIB errors pretty frequently when I do that, for some reason. For long-term tests it may be less frustrating to limit the rate to 1 PPS. Also, you need to measure the actual tau interval when the counter free-runs like that, which is an extra complication. It won't be something nice and round like 100ms or 1s. -- john, KE5FX ___ 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] Using a Spectrum Analyser for phase noise
A lot of folks have contacted me off line about phase noise measurements. Good references to start, is the HP applications notes on phase noise at http://www.hpmemory.org/news/3048/hp3048_01.htm A quick example is also in the rear of HP application note 301-1 Low Noise Division of 10 Mhz Oscillators. The appendix shows the basic configuration. You can find that app note at: http://www.ko4bb.com/cgi-bin/manuals.pl?dir=06%29_App_Notes Another page to check http://www.ko4bb.com/Timing/Phase_Detector/ Brian KD4FM ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Thanks for the screen captures and a question...
Hello, Time Nuts-- My thanks to those couple of you who have sent screen captures of your LH 3.0 beta display to eddikate me. Any other screen captures pending will be most welcome. Part of my quest in this is to see how others have configured their displays so as to display the most information but not have the display so cluttered with overlaid graphs as to be unreadable. My computer-fu is not very strong and it helps to have other people's examples to compare to what I see! My first stumbling attempts to set LH 3.0 beta up have brought up a couple of questions, one of which is why, after commanding it to do a 4 hour fix, it came up with a Lat and Lon reading that is very much in error? After the precision fix the Lat/Lon/Alt reads: Lat 47.x N Lon 122.xx W Alt -9.xxx M However, my actual Florida/USA location is: Lat 29 N Lon 82 W Alt 27m AMSL. What am I doing wrong to wind up with this wrong Lat/Lon ?? As for tips for configuring LH 3.0 beta, Mark's suggestion to set the signal level mask to a low value (like AMU=1.0) and the satellite elevation mask to a high value (like 25 degrees) is much appreciated. My antenna location (on top of the fireplace chimney cap 6 feet above the house roof) is surrounded by tall trees and most of the sky below 20 degrees is blocked by foliage. Mike Baker - ___ 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] Thanks for the screen captures and a question...
Hello Mike, Those coordinates look suspiciously like John Miles' (he lives in a pineapple under the sea). Are you sure you were looking at the correct image when you got the coordinates? Or were you logged into his remote control oscillator when you did the survey? _ Hotmail: Trusted email with powerful SPAM protection. http://clk.atdmt.com/GBL/go/177141665/direct/01/ ___ 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] [OT] short run cable assembly vendor?
Sorry for the off-topic post, but ... I'm looking for a vendor who can make a couple of simple power cable assemblies for me. The first is from a IEC C14 power entry module to an open frame supply board-in (Molex 26-48-1035 style) and ground pigtail. The second is from the open frame supply to our board (whatever is on the output side of the supply to whatever is convenient.cheap). Quantity is 200-300. Any recommendations? Thanks, -ch ___ 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] short run cable assembly vendor?
Paragon Manufacturing, in Everett, WA, may be able to help. We gave them a very specific set of specs for some custom video cables we needed for an upcoming project, and they had no problem at all supplying it. Happy hunting. *** REPLY SEPARATOR *** On 30-Dec-09 at 12:31 Christopher Hoover wrote: Sorry for the off-topic post, but ... I'm looking for a vendor who can make a couple of simple power cable assemblies for me. The first is from a IEC C14 power entry module to an open frame supply board-in (Molex 26-48-1035 style) and ground pigtail. The second is from the open frame supply to our board (whatever is on the output side of the supply to whatever is convenient.cheap). Quantity is 200-300. Any recommendations? Thanks, -ch ___ 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. __ Information from ESET Smart Security, version of virus signature database 4730 (20091230) __ The message was checked by ESET Smart Security. http://www.eset.com ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] [OT] short run cable assembly vendor?
At 02:31 PM 12/30/2009 , Christopher Hoover wrote: Sorry for the off-topic post, but ... I'm looking for a vendor who can make a couple of simple power cable assemblies for me. Where are you located? -- newell N5TNL ___ 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 a Spectrum Analyser for phase noise
A lot of folks have contacted me off line about phase noise measurements. Good references to start, is the HP applications notes on phase noise at http://www.hpmemory.org/news/3048/hp3048_01.htm Wow, that's awesome... I could make a fortune on eBay if I had that guy's photography skills. He's turned an equipment rack into a sex object! All of the 3048A manuals are online at http://www.hparchive.com under Equipment, but IMHO the much shorter PN 11729B-1 at http://www.ke5fx.com/gpib/5952-8286E.pdf (40MB) makes a better handbook for general PN measurement with a single-ended phase detector. The 3048A docs are massive and highly system-specific, while the 11729 architecture is more like what you'll end up with if you roll your own quadrature PLL. -- john, KE5FX ___ 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] Why they call it Flori-DUH...!!
Hello, Time Nuts-- Now you know why they started calling this far southeast corner of the nation Flori-DUH...!! Somewhere along in the process of installing LH v3.00 beta I managed to get John Miles on-line T-Bolt unit mis-labeled. In my struggle to figure out the confusing command line structure, I did not understand why it seemed to be behaving so weirdly!! DUH!! I think I will fix myself a stiff egg-nog and start all over again!! Thanks for all the patience extended to me by the several who offered help and suggestions!! Mike Baker WA4HFR Micanopy, Flori-DUH, USA ___ 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] LH Server - FreeBSD
Hi I'm about 99.99% sure I've seen this discussed in the last few weeks. Somehow I can't find the thread... What's inside the server end of the 3.0 version of Lady Heather? Is it currently available (the server only) as a native program on anything other than Microsoft OS's ? If not, how insane would it be to port it to something like FreeBSD? I'm assuming that the server is a non-graphical entity, and that it simply moves serial data between the TBolt and the client. If there are graphics in the server then this isn't a real practical thing. Bob ___ 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] short run cable assembly vendor?
Cables and Chips, NYC, Custome Cables, See their Web Site, Good Luck. Roy, K3TEN, 73, http://www.cablesandchipsinc.com/ -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on Behalf Of Scott Newell Sent: Wednesday, December 30, 2009 3:54 PM To: time-nuts@febo.com Subject: Re: [time-nuts] [OT] short run cable assembly vendor? At 02:31 PM 12/30/2009 , Christopher Hoover wrote: Sorry for the off-topic post, but ... I'm looking for a vendor who can make a couple of simple power cable assemblies for me. Where are you located? -- newell N5TNL ___ 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. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.722 / Virus Database: 270.14.123/2594 - Release Date: 12/30/09 02:27:00 ___ 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] LH Server - FreeBSD
What's inside the server end of the 3.0 version of Lady Heather? Not much. About 1K lines of C that ties the COM port to WinSock. Is it currently available (the server only) as a native program on anything other than Microsoft OS's ? Nope, but ... If not, how insane would it be to port it to something like FreeBSD? ... that would be trivial. I'm assuming that the server is a non-graphical entity, and that it simply moves serial data between the TBolt and the client. If there are graphics in the server then this isn't a real practical thing. It's a Win32 console app (server.cpp in c:\program files\heather if you used the default installation directory.) Ultimately I'd like to port it to an Ethernut or similar small embedded controller, but that's low priority since the itch I'm scratching involves a Windows PC server. If you want to send me a version for BSD or *nix or whatever, though, I'd be glad to post it alongside the Win32 vesion. Caveat: Right now server.cpp acts as a fairly dumb TSIP-TCP/IP bridge. However, it will ultimately need to include Mark and Warren's temperature regulation code and possibly some other control code Mark has been working on, because it doesn't make sense for that to run on (potentially multiple) remote clients without access to the COM port hardware. For that reason, I'd suggest making your BSD-specific changes via #ifdefs in the existing server.cpp module, rather than by creating a new module. Forking it would be a maintenance hassle when the new control code is ready to be moved to the server side. -- john, KE5FX ___ 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] LH Server - FreeBSD
Hi Thanks for the info. I had not thought about the temperature regulation code. I agree that it's not the sort of thing you would want to run remotely. Bob On Dec 30, 2009, at 9:25 PM, John Miles wrote: What's inside the server end of the 3.0 version of Lady Heather? Not much. About 1K lines of C that ties the COM port to WinSock. Is it currently available (the server only) as a native program on anything other than Microsoft OS's ? Nope, but ... If not, how insane would it be to port it to something like FreeBSD? ... that would be trivial. I'm assuming that the server is a non-graphical entity, and that it simply moves serial data between the TBolt and the client. If there are graphics in the server then this isn't a real practical thing. It's a Win32 console app (server.cpp in c:\program files\heather if you used the default installation directory.) Ultimately I'd like to port it to an Ethernut or similar small embedded controller, but that's low priority since the itch I'm scratching involves a Windows PC server. If you want to send me a version for BSD or *nix or whatever, though, I'd be glad to post it alongside the Win32 vesion. Caveat: Right now server.cpp acts as a fairly dumb TSIP-TCP/IP bridge. However, it will ultimately need to include Mark and Warren's temperature regulation code and possibly some other control code Mark has been working on, because it doesn't make sense for that to run on (potentially multiple) remote clients without access to the COM port hardware. For that reason, I'd suggest making your BSD-specific changes via #ifdefs in the existing server.cpp module, rather than by creating a new module. Forking it would be a maintenance hassle when the new control code is ready to be moved to the server side. -- john, KE5FX ___ 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] [OT] short run cable assembly vendor?
Hi Chris - One place to try is http://www.glkinst.com/cables/hp_cables.htm George is a great guy. A satisfied customer for 10 year, John, K1AE John Allen - PC Support Solutions www.pcsupportsolutions.com PC On Site Service and Training - Computer HW/SW/Network debugging, installation and upgrades. -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Christopher Hoover Sent: Wednesday, December 30, 2009 3:31 PM To: time-nuts@febo.com Subject: [time-nuts] [OT] short run cable assembly vendor? Sorry for the off-topic post, but ... I'm looking for a vendor who can make a couple of simple power cable assemblies for me. The first is from a IEC C14 power entry module to an open frame supply board-in (Molex 26-48-1035 style) and ground pigtail. The second is from the open frame supply to our board (whatever is on the output side of the supply to whatever is convenient.cheap). Quantity is 200-300. Any recommendations? Thanks, -ch ___ 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] Lady Heather's Fat Client
Hi John, Sorry for the late posing to this thread but just to let you know that this works very well under OpenSuSE 11.2 Linux running under wine and installs without any problems. It would be great to see a Linux port of this software and I wonder what would be involved with this as there is obviously no windowing code so it would, hopefully, be mostly I/O. Congratulations on an excellent application and thanks for your time spent on producing such a useful application. Best Regards, Steve 2009/12/8 John Miles jmi...@pop.net: Looking for a few Lady Heather users to stress-test the new TSIP-to-IP gateway in the upcoming 3.00 release. If you install this beta of the Windows version: http://www.ke5fx.com/heather/beta.exe (1 MB) ... you'll see an icon called KE5FX Thunderbolt. This will launch Heather with the command-line option /ip=ke5fx.dyndns.org, which should give you full access to a Thunderbolt at my location. Up to 8 clients at a time can log in and abuse this Thunderbolt. This is a test mule, so you can play with its settings and configuration. Any configuration or parameter changes made by one user should be immediately visible to other users. Any bugs in the remote access functionality should be reported to me at jmi...@pop.net (not to the list, unless genuinely of community interest). I'll try to leave the server running for at least a few days. During that time, you may be booted from the server if I update and restart it, so don't report normal forced disconnections. Connection attempts should never fail; if more than 8 clients try to connect, the oldest remote client will be booted off the server to make room. (This also means it's OK to camp on the server for as long as you like.) Thanks, and be gentle, it's her first time... -- john, KE5FX ___ 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. -- Steve Rooke - ZL3TUV G8KVD A man with one clock knows what time it is; A man with two clocks is never quite sure. ___ 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.
