Re: [time-nuts] Rb Oscillator - rather fundamental question

2010-02-23 Thread Chris Kuethe
On Tue, Feb 23, 2010 at 2:10 PM, Matthew Smith m...@smiffytech.com wrote: BTW: does anyone know if a 0.55V p-t-p sine wave from an Rb source would be enough to clock an Atmel AVR microcontroller?  The crystal/clock input *is* an amplifier, but didn't know if I'd need to do anything to the

Re: [time-nuts] Thunderbolt and serial mouse

2009-10-25 Thread Chris Kuethe
http://support.microsoft.com/kb/131976 http://www.netstumbler.org/f47/fix-windows-sees-gps-mouse-pointer-goes-nuts-12080/ On Sun, Oct 25, 2009 at 1:09 PM, Steve stev...@suddenlink.net wrote: I remember seeing a posting on this reflector in the last year or two about how to disable the PC's

Re: [time-nuts] OpenBSD / ntpd / gpsd / PPS problems

2009-10-24 Thread Chris Kuethe
On Sat, Oct 24, 2009 at 8:52 PM, Rich Wales ri...@richw.org wrote: Despite the claim (see above) that gpsd uses OpenBSD's NMEA line discipline to export PPS time stamps, I can't find any substantiation for this in the gpsd source code.  I tried enabling the NMEA line discipline manually on the

Re: [time-nuts] OpenBSD / ntpd / gpsd / PPS problems

2009-10-24 Thread Chris Kuethe
: device); exit(1); +#endif + usleep(1); } atomicio(vwrite, pfd[1 - n].fd, buf, nread); } On Sat, Oct 24, 2009 at 9:34 PM, Rich Wales ri...@richw.org wrote: Chris Kuethe

Re: [time-nuts] GPS from a window seat

2009-10-05 Thread Chris Kuethe
On Mon, Oct 5, 2009 at 12:15 AM, Robert Atkinson robert8...@yahoo.co.uk wrote: Hi There is of course a non technical, non EMC reason for such a ban. Security. It might be considered that exact position and speed information could be of use to a passenger with ill intent. Note that most

Re: [time-nuts] GPS from a window seat

2009-10-01 Thread Chris Kuethe
the wintec wbt200 data logger, built around the itrax03 seems to have no trouble with aircraft. haven't had a chance to try my freakishly sensitive ND100 (MSB2122) On Thu, Oct 1, 2009 at 10:18 AM, Jean-Louis Oneto jean-louis.on...@obs-azur.fr wrote: I also once forgot to disable the audible

Re: [time-nuts] Ten minutes past ten

2009-08-03 Thread Chris Kuethe
It makes the the face of the clock look like it's smiling. On Mon, Aug 3, 2009 at 9:22 PM, Bill Hawkinsb...@iaxs.net wrote: Excuse me for asking a non-hardware question, but I'd like to know the origins of the time 10:10 being shown on clocks and watches in advertisements for same. The one

Re: [time-nuts] Time servers on a well known web site.

2009-07-09 Thread Chris Kuethe
On Thu, Jul 9, 2009 at 7:17 AM, Dave Baxterd...@uk-ar.co.uk wrote: Just found these on eBlag. Way outside my price range, but... 220445049656   Not sure if it actualy does GPS disiplined stuff, as there is no GPS antenna socket! 180370118043   Still too rich for me.  And when you consider

Re: [time-nuts] GPS Week 1536 causing problems?

2009-07-03 Thread Chris Kuethe
On Fri, Jul 3, 2009 at 1:30 PM, Kasper Pedersentime-n...@kasperkp.dk wrote: I have (had) 2 Garmin GPS-18x fw 3.00 on the windowsill, one driving a homecooked GPSDO, the other just a separate pps. This morning both of them were quiet; There's no NMEA data coming out of them, no pps, nothing.

Re: [time-nuts] GPS PRN5 reported as unhealthy

2009-03-27 Thread Chris Kuethe
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2009023 NANU TYPE: GENERAL *** GENERAL MESSAGE TO ALL GPS USERS *** GPS SATELITE SVN 35 (PRN05) WAS SET UNUSABLE ON JDAY 085 (26 MAR 2009) AT 1320Z. SVN 35 (PRN05) WAS DECOMMISSIONED FROM ACTIVE SERVICE ON JDAY 085 (26 MAR 2009) AT 2031Z. PRN 05 WILL BE

Re: [time-nuts] WWV / WWVH / WWVB

2009-01-13 Thread Chris Kuethe
On Tue, Jan 13, 2009 at 7:30 PM, Brooke Clarke bro...@pacific.net wrote: Hi Scott: Press F5 at: http://www.prc68.com/I/Loop.shtml#CMMR6P60 and scroll down to see a scope image. Not sure if the dots are caused by the sampling scope or by noise? I'm going to guess your reception sucks. I

Re: [time-nuts] GPSDO time constant

2009-01-08 Thread Chris Kuethe
On Thu, Jan 8, 2009 at 11:36 AM, WB6BNQ wb6...@cox.net wrote: Do you have any web sites that show such a contration using leaf blowers ? mythbusters -- GDB has a 'break' feature; why doesn't it have 'fix' too? ___ time-nuts mailing list --

Re: [time-nuts] WWV / WWVH / WWVB

2009-01-07 Thread Chris Kuethe
On Wed, Jan 7, 2009 at 6:52 AM, David M. Witten II witt...@wwrinc.com wrote: James R. Gorr wrote: Have you been able to RX WWVB with it (even if you haven't written anything to decode it)? No, I haven't had time to make one work. It seems like a nice little package, but how useful and for

Re: [time-nuts] Garmin GPS18 Leap Second Observation

2008-12-31 Thread Chris Kuethe
And my gps18 seems to have got very confused - it was tracking satellites but was not generating solutions. 5 other receivers (thunderbolt, sirfstar2, itrax03, antaris, antaris4t) in the same area were working OK. After resetting the gps18, it was tracking the same satellites and all was shiny and

Re: [time-nuts] Radio clock fails to leap

2008-12-31 Thread Chris Kuethe
On Wed, Dec 31, 2008 at 4:37 PM, Scott Newell new...@cei.net wrote: My low-end Radio Shack 'atomic clock' did not handle the leap second. Not surprising. I started this evening with a good plan--used a digital camera capable of video (and audio) recording to record the display of the radio

Re: [time-nuts] altitude difference between two gps

2008-12-27 Thread Chris Kuethe
On Sat, Dec 27, 2008 at 7:24 PM, Richard W. Solomon w1...@earthlink.net wrote: -800 meters ?? Live in a mine ?? How can that be ? He's using the ~ to mean approximately. As for the height difference, perhaps one receiver is using elipsoid and the other is using MSL altitude? CK -- GDB has

Re: [time-nuts] parallel port PPS with FreeBSD

2008-12-22 Thread Chris Kuethe
dumb question, but is your printing system active? maybe lpd is camping on the printer port? On Mon, Dec 22, 2008 at 12:02 AM, Remco dB bes...@gmail.com wrote: Perhaps this question may be totally off topic or considered to be part of the 'newbie category' but I tried to activate PPS on the

Re: [time-nuts] M12+T more confusion

2008-11-21 Thread Chris Kuethe
On Fri, Nov 21, 2008 at 3:06 PM, Tom Van Baak [EMAIL PROTECTED] wrote: You are enabling output messages, right? Sounds like the order in which you individually *enable* one or more messages is unrelated to the order in which, once a second(*), all selected messages are *output*. I've never

Re: [time-nuts] WWV / WWVH / WWVB

2008-11-20 Thread Chris Kuethe
On Thu, Nov 20, 2008 at 10:40 AM, Brad Stockdale [EMAIL PROTECTED] wrote: o WWVB = 60 KHz I bought a nice little module from digi-key to handle this. 561-1014-ND, under $11 including the ferrite antenna. o WWV = 2.5 MHz, 5 MHz, 10 MHz, 15 MHz, or 20 MHz o WWVH = 2.5 MHz,

Re: [time-nuts] Thunderbolt Monitor Manual?

2008-11-05 Thread Chris Kuethe
I haven't see a nice user's guide for tboltmon. Lots of exciting opportunities for discovery and enlightenment :) Setup menu Position, fill in your known location and hit save segment. that should change that dot. On Wed, Nov 5, 2008 at 3:07 PM, Brooke Clarke [EMAIL PROTECTED] wrote: Hi: Is

Re: [time-nuts] Oncore, Trimble Antennae

2008-10-21 Thread Chris Kuethe
On Tue, Oct 21, 2008 at 6:42 PM, Matthew Smith [EMAIL PROTECTED] wrote: Both the Trimble and Motorola modules use active antennae with 5V power - what I don't know is whether they are the same polarity. The Motorola has 5V on the core of the coax - does anyone know if the Trimble ones do the

Re: [time-nuts] GPS Constellation

2008-10-14 Thread Chris Kuethe
two things i can think of: 1) grab a copy of the trimble planning tools. they're not a web page, but they can compute a constellation (and your view of it) at an arbitrary place and time. 2) grab a copy of GPSTk. This can also do the calculations, but GUI display is up to you. On Tue, Oct 14,

Re: [time-nuts] GPIB Card

2008-10-04 Thread Chris Kuethe
You mean like this card? http://www.maxipub.com/electro/photos/dv488.jpg it could be a Metrabyte DV-488 ... or maybe an MBC-488 On Sat, Oct 4, 2008 at 9:40 PM, Brian Kirby [EMAIL PROTECTED] wrote: A friend has given me a GPIB card and neither of us know who made it. First its a standard ISA

Re: [time-nuts] Browsing Searching the Time Nuts Mailing List

2008-09-06 Thread Chris Kuethe
On Sat, Sep 6, 2008 at 10:30 AM, J.D. Bakker [EMAIL PROTECTED] wrote: I am new to the time nuts mailing list and I have one question. How do I search the mail list archives for a specific topic or keyword? As far as I am aware there is no direct way to search the entire archive. A workable

Re: [time-nuts] While we're discussing backups...

2008-08-26 Thread Chris Kuethe
On Tue, Aug 26, 2008 at 10:10 AM, Neon John [EMAIL PROTECTED] wrote: The silliness in your advice is that you offered up one of the most extreme solutions as generic advice and said that anything less was no backup at all or something to that effect even though you don't know my or any other

Re: [time-nuts] While we're discussing backups...

2008-08-25 Thread Chris Kuethe
On Mon, Aug 25, 2008 at 3:30 PM, Mark Sims [EMAIL PROTECTED] wrote: Any backup that is stored in the same city as the original (some would say within 100 miles of the city) is NOT a backup. It is just a disk waiting for a (real) disaster. No fire proof safe, baggie, etc is a substitute

Re: [time-nuts] Odetics 325 425: File recovery

2008-08-22 Thread Chris Kuethe
On Thu, Aug 21, 2008 at 11:01 PM, Bruce Lane [EMAIL PROTECTED] wrote: Good eve, *** REPLY SEPARATOR *** On 21-Aug-08 at 22:45 Hal Murray wrote: I'm still picking up the pieces from a major FTP archive crash that lost me a considerable amount of data. Disks are cheap.

Re: [time-nuts] rsync (was Odetics 325 425: File recovery)

2008-08-22 Thread Chris Kuethe
cwrsync. works well, comes with a pre-packaged opensshd On Fri, Aug 22, 2008 at 11:38 AM, John Ackermann N8UR [EMAIL PROTECTED] wrote: I was thinking about the Windows side; do the client/server there have built-in SSH support? I thought you had to play tricks under that OS. John

Re: [time-nuts] file synchronization via ftp

2008-08-22 Thread Chris Kuethe
On Fri, Aug 22, 2008 at 5:16 PM, Didier Juges [EMAIL PROTECTED] wrote: I would have to upgrade to a Business package (instead of the Home package) to have SSH, which would double the cost. I am evaluating FTPSync. It looks like it might do the job, thanks for the suggestion Depending on how

Re: [time-nuts] Leap Second quirk, Another hanging bridge

2008-08-12 Thread Chris Kuethe
On Tue, Aug 12, 2008 at 11:36 AM, Hal Murray [EMAIL PROTECTED] wrote: I've got a couple of GPS units that use the SiRF chips feeding NTP. I was looking for low cost units for time keeping. They don't work very well. The time offset of the NMEA message wanders/jitters by about 100 ms. I can

Re: [time-nuts] Leap Second quirk, Another hanging bridge

2008-08-12 Thread Chris Kuethe
On Tue, Aug 12, 2008 at 1:22 PM, David Forbes [EMAIL PROTECTED] wrote: I looked into using some US GlobalSat units for my scope clock instead of the higher-priced GPS 18 LVC. The one I tried has an RS-232 serial port. The manual refers obliquely to a 1PPS capability, but unfortunately they

Re: [time-nuts] Leap Second quirk, Another hanging bridge

2008-08-12 Thread Chris Kuethe
On Tue, Aug 12, 2008 at 5:18 PM, Scott Newell [EMAIL PROTECTED] wrote: At 06:29 PM 8/12/2008, Hal Murray wrote: USB isn't fundamentally evil. It's polled, so you won't get great response to something like a PPS interrupt. But the polling is handled automagically with modern hardware so It's

Re: [time-nuts] Leap Second quirk, Another hanging bridge

2008-08-12 Thread Chris Kuethe
On Tue, Aug 12, 2008 at 4:29 PM, Hal Murray [EMAIL PROTECTED] wrote: Yep, that's to be expected, given the iterative solver they're using. Try turning on the ZDA message, apparently the $ sign is aligned to the start of the second ... if its implemented in your version of firmware. Since

Re: [time-nuts] thunderbolt for ntpd or gpsd

2008-08-10 Thread Chris Kuethe
On Sun, Aug 10, 2008 at 1:42 PM, Scott Mace [EMAIL PROTECTED] wrote: ntpshm_put() needs to be called in the 0xab case as well for ntp to work. done. --- gpsd/trunk/tsip.c 2008-08-08 23:38:27.0 -0500 +++ ../gpsd/trunk/tsip.c2008-08-09 04:14:09.0 -0500 @@ -65,7 +65,7

Re: [time-nuts] Thunderbolt PSU

2008-07-22 Thread Chris Kuethe
On Tue, Jul 22, 2008 at 2:49 AM, David Ackrill [EMAIL PROTECTED] wrote: Also, I see that the antenna socket on the Thunderbolt is an F-type. Someone has thoughtfully provided an F-Type to BNC adapter. However, the plug on the Motorola GPS antenna is an SMA type. Ah well, I can make a lead

Re: [time-nuts] Thunderbolt SV and AMU Signal levels

2008-07-22 Thread Chris Kuethe
On Tue, Jul 22, 2008 at 4:14 PM, David Ackrill [EMAIL PROTECTED] wrote: Sorry to be a bore, but like any kid with a new toy I'm facinated by the changing values on the display... What do the values under SV and AMU mean? SV = space vehicle. mostly irrelevant, unless you care about the serial

Re: [time-nuts] Thunderbolt temperature spikes

2008-07-14 Thread Chris Kuethe
On Mon, Jul 14, 2008 at 9:44 AM, Dan Rae [EMAIL PROTECTED] wrote: This is a spike? Surely this kind of tiny temperature variation on the unit's board somewhere outside the oven does not have a lot of relevance or effect on anything inside the oven where it is all happening. And what is the

Re: [time-nuts] Fury ntp refclock

2008-07-08 Thread Chris Kuethe
On Mon, Jul 7, 2008 at 10:45 PM, [EMAIL PROTECTED] wrote: One note of interest to the group in general: some of our future products have a new, very high performance mobile GPS on them that will actually track and output 16 Sats and more simultaneously (well, if it could see the Sats it

Re: [time-nuts] Thunderbolt meets ntpd

2008-06-23 Thread Chris Kuethe
On Sun, Jun 22, 2008 at 11:30 PM, Hal Murray [EMAIL PROTECTED] wrote: Does anybody have any Linux code to print the stuff it's sending? If not, I'll probably have something soon. 1) dig around on trimble.com - there's a link to iQSource.zip which may be useful 2) rip some code from gpsd - we

Re: [time-nuts] thunderbolt for ntpd or gpsd

2008-06-13 Thread Chris Kuethe
On Fri, Jun 13, 2008 at 8:58 AM, Christian Vogel [EMAIL PROTECTED] wrote: gpsd: GPS Time 485697.25 1483 14.00 that's encouraging gpsd: Sat info: mode 1, satellites used 5: 18 9 28 15 26 As is this. gpsd: Unhandled TSIP superpacket type 0xab thar's yer problem... kinda. yes, we

Re: [time-nuts] thunderbolt for ntpd or gpsd

2008-06-13 Thread Chris Kuethe
On Fri, Jun 13, 2008 at 2:46 PM, Tim Cwik [EMAIL PROTECTED] wrote: I have changed line 66 to: gpsd_set_speed(session, session-gpsdata.baudrate, 'N', 1); This results in: [goodness snipped] I hope this is progress, but I am not sure why gpsd closes the port and who sends signal 2. it's a

Re: [time-nuts] thunderbolt for ntpd or gpsd

2008-06-12 Thread Chris Kuethe
On Thu, Jun 12, 2008 at 5:32 PM, Tim Cwik [EMAIL PROTECTED] wrote: gpsd: TSIP pkt_id = 0x8f, packetlen= 0x15 gpsd: packet sniff finds type 4 gpsd: switch_driver(Trimble TSIP) called... gpsd: selecting Trimble TSIP driver... gpsd: ntpd_link_activate: 0 gpsd: speed 9600, 8O1 gpsd sees

Re: [time-nuts] thunderbolt for ntpd or gpsd

2008-06-12 Thread Chris Kuethe
On Thu, Jun 12, 2008 at 8:05 PM, Tim Cwik [EMAIL PROTECTED] wrote: Is there a way to have gpsd use 8N1 for TSIP? The manual says teh thunderbolt uses 8N1, the windows support program says it and the thunderbolt are using 8N1. I can not find a way to tell the thunderbolt to use 8O1. If you're

Re: [time-nuts] NMEA Checksums

2008-05-28 Thread Chris Kuethe
Commas matter. The checksum runs over every character between the leading '$' and the '*' delimiter. On Tue, May 27, 2008 at 11:18 PM, Matthew Smith [EMAIL PROTECTED] wrote: Re-sending, now that febo.com appears to have risen from the dead. Please accept my apologies if this should arrive in

Re: [time-nuts] NMEA Checksums

2008-05-28 Thread Chris Kuethe
hit the ending delimiter or maximum sentence length than it is to keep detailed state on what you've checksummed, On Tue, May 27, 2008 at 11:26 PM, Matthew Smith [EMAIL PROTECTED] wrote: Quoth Chris Kuethe at 2008-05-28 15:54... Commas matter. The checksum runs over every character between

Re: [time-nuts] Thoughts on IR thermometers?

2008-05-27 Thread Chris Kuethe
I got one of the passive detectors from thinkgeek and it does a pretty decent job. I can tell you which corner of a geode system-on-a-chip has the bits that are working hardest, for example. Or when I need to let my brakes cool off after doing laps at the race track.

Re: [time-nuts] Thunderbolt Group Buy, part 1

2008-05-05 Thread Chris Kuethe
On Mon, May 5, 2008 at 2:55 AM, Tom Van Baak [EMAIL PROTECTED] wrote: 2) Those of you newcomers to Time-Nuts should expect to wait until the first batch has been shipped and TAPR is ready for you. There should be enough for everyone; so don't panic. oooh! me, me!! /me waits for the

Re: [time-nuts] Probably not of interest to anyone here

2008-04-25 Thread Chris Kuethe
On Fri, Apr 25, 2008 at 8:32 PM, John Miles [EMAIL PROTECTED] wrote: A man with one watch knows what time it is. A man with two watches is never sure. A man with THIS watch has transcended such earthly concerns: http://snurl.com/antitime but it's sure pretty to look at. i have a few

Re: [time-nuts] Oncore Checksums

2008-04-17 Thread Chris Kuethe
int oncore_checksum(char *buf, int len){ unsigned char a, b; int i; a = buf[len-3]; b = '\0'; for(i = 2; i len - 3; i++) b ^= buf[i]; if (a == b) return 0; return 1; } On Thu, Apr 17, 2008 at 6:26 PM,

Re: [time-nuts] Oncore Checksums

2008-04-17 Thread Chris Kuethe
On Thu, Apr 17, 2008 at 6:51 PM, Matthew Smith [EMAIL PROTECTED] wrote: Quoth Chris Kuethe at 2008-04-18 10:59... int oncore_checksum(char *buf, int len){ unsigned char a, b; int i; a = buf[len-3]; b = '\0'; for(i = 2; i len - 3; i

Re: [time-nuts] Oncore batteries

2008-04-05 Thread Chris Kuethe
On Fri, Apr 4, 2008 at 11:54 PM, Matthew Smith [EMAIL PROTECTED] wrote: What I'd be interested to know is whether the Oncores CAN be run without the backup battery. As Randy says, TTFF is not a concern for me so I'd rather have a less complex system that can be restored to a known state

Re: [time-nuts] ntpd not talking to gpsd

2008-04-02 Thread Chris Kuethe
On Tue, Apr 1, 2008 at 10:31 PM, Matthew Smith [EMAIL PROTECTED] wrote: For some reason, running -D 5 on my Sun Blade 100, I am not seeing any mention of the DCD changing state (logic probe shows that the line is getting the 1PPS correctly), although this is working OK on my Linux

Re: [time-nuts] Connecting my Oncores

2008-04-02 Thread Chris Kuethe
On Wed, Apr 2, 2008 at 5:39 PM, randy warner [EMAIL PROTECTED] wrote: I'm not sure how smart gpsd is, but it may not know about switching the receiver between binary and NMEA mode. Since the gpsd commands you show in your email specify 9600 baud, I assume you want binary? gpsd can't do

Re: [time-nuts] Attenuation of typical roof? (at GPS frequencies)

2008-04-01 Thread Chris Kuethe
On Tue, Apr 1, 2008 at 4:11 PM, Hal Murray [EMAIL PROTECTED] wrote: Does anybody have any numbers? Suppose I have an antenna that is high in my attic. How much do I gain by drilling a hole in the roof and moving it up a foot? If I knew the answer (even a rough one), I could compare

Re: [time-nuts] Connecting my Oncores

2008-04-01 Thread Chris Kuethe
On Tue, Apr 1, 2008 at 7:32 PM, Matthew Smith [EMAIL PROTECTED] wrote: What is puzzling me about the VP is why I was unable to get this working myself. Through minicom, at both 9600bps and 4800bps, I typed @@Ci, which the manual tells me should get the device into NMEA mode. Nothing

Re: [time-nuts] Connecting my Oncores

2008-04-01 Thread Chris Kuethe
On Tue, Apr 1, 2008 at 8:38 PM, Hal Murray [EMAIL PROTECTED] wrote: It's also worth checking gpsd. It knows how to talk to lots and lots of GPS units and can smash some of them into a useful state. I haven't got around to writing an oncore driver yet. There was one in the works but the

Re: [time-nuts] Setting PPS on the OpenBSD kernel

2008-03-31 Thread Chris Kuethe
it's even easier than that. the PPS code is in and on by default, the two things you need are to activate kernel timestamping with nmeaattach (see /etc/rc.conf for an example) and then tell ntpd to use the timedelta sensor (sensor * or sensor nmea0) CK On Mon, Mar 31, 2008 at 1:23 AM, Matthew

Re: [time-nuts] Setting PPS on the OpenBSD kernel

2008-03-31 Thread Chris Kuethe
On Mon, Mar 31, 2008 at 1:54 AM, Matthew Smith [EMAIL PROTECTED] wrote: Thanks! I know that you said it was easy, which is why I went the OpenBSD route - didn't know it would be that easy though. So, just to confirm, I need to change the rc.conf line to this, based on the GPS being

Re: [time-nuts] Sun Blade 100 as GPS-controlled NTP server

2008-03-16 Thread Chris Kuethe
On Sat, Mar 15, 2008 at 9:26 PM, Matthew Smith [EMAIL PROTECTED] wrote: My first choice is my Sun Blade 100 as it is small, quiet, doesn't use... last time I looked at a dmesg from one of those, it looked just like my old hp laptop... but an ultrasparc cpu. unless OpenBSD happens to have

Re: [time-nuts] GPS World Article on PRN-32

2008-03-13 Thread Chris Kuethe
On Thu, Mar 13, 2008 at 11:32 AM, Hal Murray [EMAIL PROTECTED] wrote: I'll let the battery die (and hopefully lose the ephemera data) and restart and see what happens. How often is the data in the satellites updated by the ground stations? I'll have to dig for the reference, but ISTR 3x

Re: [time-nuts] TiNI Time Server

2008-03-08 Thread Chris Kuethe
On Fri, Mar 7, 2008 at 2:28 PM, Matthew Smith [EMAIL PROTECTED] wrote: Hi Does anyone have or has anyone come across the Dallas TiNI evaluation module (DS80C400) being used as a GPS-connected time server? I've found references to something called 'tinitim', but whatever it was seems to

Re: [time-nuts] Mounting GPS Antenna on Steel Roof

2008-03-06 Thread Chris Kuethe
On Thu, Mar 6, 2008 at 3:08 PM, Matthew Smith [EMAIL PROTECTED] wrote: So my Trimble ACE II and Moto Oncore modules will tolerate RS232 levels without conversion? Are we absolutely sure on this - I don't want to fry anything! Well, I plugged my Oncore UT+ into my PC and it didn't work

Re: [time-nuts] SVN23/PRN32 useable

2008-03-04 Thread Chris Kuethe
On Fri, Feb 29, 2008 at 5:15 AM, Bruce Lanning [EMAIL PROTECTED] wrote: My Trimble ACE-III Has been tracking PRN32. Works AOK. Bruce Just fired it up a little while ago, but the FastraX itrax03 (based on the uNav uN2110) also tracks PRN32. CK -- GDB has a 'break' feature; why doesn't it

Re: [time-nuts] Trimble 36576-A GPS Module

2008-03-01 Thread Chris Kuethe
On Sat, Mar 1, 2008 at 5:05 PM, Matthew Smith [EMAIL PROTECTED] wrote: Good thinking! The grid on my notebook is 5mm x 5mm, for those shots where the ruler is out of the picture. Looks like MCX. I have connectors matching that description and general look on my Oncore UT+, and I used a

Re: [time-nuts] Trimble 36576-A GPS Module

2008-03-01 Thread Chris Kuethe
On Sat, Mar 1, 2008 at 5:16 PM, Matthew Smith [EMAIL PROTECTED] wrote: The socket on the antenna lead (not shown) has cuts around the edge for the flylead connector to snap in, the socket on the board is solid. The snap cuts are on the plug. SMB, sometimes known as OCX -- GDB has a

Re: [time-nuts] Trimble 36576-A GPS Module

2008-03-01 Thread Chris Kuethe
On Sat, Mar 1, 2008 at 5:22 PM, Matthew Smith [EMAIL PROTECTED] wrote: Excellent! Thanks guys. Fans of Neal Stephenson (in particular Snow Crash) may consider this as an example of condensing fact from the vapor of nuance. -- GDB has a 'break' feature; why doesn't it have 'fix' too?

Re: [time-nuts] SVN23/PRN32 useable

2008-02-27 Thread Chris Kuethe
On Wed, Feb 27, 2008 at 3:09 PM, Kiwi Geoff [EMAIL PROTECTED] wrote: I am now wondering if the AC12 has an issue in handling a PRN of 32. Is there anyone else in the group, that has an AC12, and can say if it can use PRN 32? I have one. I'll set it up for a test tonight. CK -- GDB has a

Re: [time-nuts] SVN23/PRN32 useable

2008-02-27 Thread Chris Kuethe
On Wed, Feb 27, 2008 at 4:33 PM, Kiwi Geoff [EMAIL PROTECTED] wrote: However my AC12 only outputs 30 almanac messages, it misses # 7 (as it should) but it stops at 31, so I think this is a strong indication that 32 is too high a number, and that the firmware may only handle PRN's from 1 to

Re: [time-nuts] SVN23/PRN32 useable

2008-02-26 Thread Chris Kuethe
On Tue, Feb 26, 2008 at 2:24 PM, Richard H McCorkle [EMAIL PROTECTED] wrote: Tom, At 51 degrees elevation PRN32 just disappeared from the UT+ satelite list. Could they have changed its status again? In Sunnyvale, my ublox antaris4t is tracking and using for solutions it right now

Re: [time-nuts] SVN23/PRN32 useable

2008-02-26 Thread Chris Kuethe
On Tue, Feb 26, 2008 at 2:53 PM, Kiwi Geoff [EMAIL PROTECTED] wrote: Chris Kuethe wrote: In Sunnyvale, my ublox antaris4t is tracking and using for solutions it right now (2008-02-26T22:29:19.0Z). My GPS18/LVC doesn't admit that there could be a PRN32 I have been monitoring my

Re: [time-nuts] Best OS for small time server

2008-02-23 Thread Chris Kuethe
On Sat, Feb 23, 2008 at 2:29 PM, Matthew Smith [EMAIL PROTECTED] wrote: I may still use an old laptop hard disc that I have kicking around rather than struggling with the Flash route. I've never used OpenBSD before nor have I tried running a system of Flash, so I see a regular hard disc

Re: [time-nuts] Best OS for small time server

2008-02-22 Thread Chris Kuethe
On Fri, Feb 22, 2008 at 12:57 AM, Matthew Smith [EMAIL PROTECTED] wrote: Quoth Chris Kuethe at 2008-02-22 11:45... i usually mount my timeserver's filesystems async,noatime - the only thing i'm going to lose is logs, and those aren't terribly valuable. If this means I can run of Compact

Re: [time-nuts] Best OS for small time server

2008-02-21 Thread Chris Kuethe
On Thu, Feb 21, 2008 at 4:49 PM, Didier Juges [EMAIL PROTECTED] wrote: In the mean time, -o noatime is a nice option when available, I suspect it will improve performance even on systems with fast hard drives. Setting noatime requires a reboot (or a remount). remount is cheap and easy

Re: [time-nuts] Best OS for small time server

2008-02-20 Thread Chris Kuethe
On Wed, Feb 20, 2008 at 1:43 PM, Matthew Smith [EMAIL PROTECTED] wrote: Hi Folks I am about to put together a little time server for my office network based on a Trimble ACE II GPS unit and a single-board computer with a Pentium MMX CPU. Assuming that the main function of this computer

Re: [time-nuts] GPS PRN 32

2008-02-09 Thread Chris Kuethe
On Feb 8, 2008 2:07 PM, Bruce Griffiths [EMAIL PROTECTED] wrote: My Z3815A sees PRN 32 now albeit as unhealthy. My Ublox AEK-4T has an almanac for PRN32, but no ephemeris (duh.) haven't tried my AC12, Lassen iQ, itrax03, gps18/lvc, UT+, GT+ or Jupiter yet... CK -- GDB has a 'break' feature;

Re: [time-nuts] SiRF GPS receivers: GlobalSat MR-350P

2008-01-23 Thread Chris Kuethe
On Jan 23, 2008 1:44 AM, Hal Murray [EMAIL PROTECTED] wrote: The context for this query is that I'm looking for inexpensive GPS units with a PPS output to connect up to ntpd. Is anybody familiar with these units? I've used other globalsat receivers based on both the SiRFstarII and

Re: [time-nuts] SVN37 offline

2007-12-12 Thread Chris Kuethe
On Dec 12, 2007 8:55 PM, Jeff Mock [EMAIL PROTECTED] wrote: I'm sure you all noticed, SVN37 (PRN07) went offline today. I tracked it yesterday afternoon, but it is gone today: http://www.mock.com/test/z3801a/ Looks like it might be gone for good, now we only have 29 GPS satellites

Re: [time-nuts] GPS fadeout

2007-08-21 Thread Chris Kuethe
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY On 8/21/07, Björn Gabrielsson [EMAIL PROTECTED] wrote: Start logging a quality measure for each satellit vs time vs elevationazimuth. There is always a message giving some kind of SNR. After a few days you should have a good

Re: [time-nuts] GPS-disciplined oscillators available

2007-07-18 Thread Chris Kuethe
); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] i'm interested. tell me more? CK On 7/18/07, George Dubovsky [EMAIL PROTECTED] wrote: ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] Last fall, I casually mentioned (over on the HP board) that I had a few

Re: [time-nuts] I've lucked it!

2007-05-06 Thread Chris Kuethe
On 5/6/07, Brooke Clarke [EMAIL PROTECTED] wrote: It's common here in the U.S. for the LF clocks to only sync near local midnight. How can you tell if that's happening with your watch or not happening? My casio keeps track of the last date/time it was able to sync, and also has a signal

Re: [time-nuts] GPS question

2007-04-05 Thread Chris Kuethe
On 4/5/07, Joseph Gray [EMAIL PROTECTED] wrote: Am I correct in assuming that the position given by a WAAS enabled handheld GPS unit is more accurate than the position reported by my Z3801? Specifically, I tried a Garmin eTrex Legend Cx with WAAS enabled and used averaging mode for the

Re: [time-nuts] Poor Man's IRIG-B Generator?

2007-03-17 Thread Chris Kuethe
Reading through the list archives someone was asking about patches to make ntp's tg.c compile, so here's the patch to make it compile on OpenBSD (probably others too). It sounds plausible... your OS may or may not have sys/audio.h or sys/audioio.h --- tg.c.orig Sat Mar 17 21:50:39 2007 +++