Re: [time-nuts] Weather/units question for European members
Here in the US, most people who really care about wind speed think knots. For causal use to the general public them it's MPH. If you want to be esoteric use the Beaufort Wind Scale It is actually still used because it can be estimated from looking at the water. It is easy to learn to tell a 2, 3 ,4 just by looking On Fri, May 23, 2014 at 9:21 PM, David J Taylor david-tay...@blueyonder.co.uk wrote: I am building a weather sensor that includes a ultrasonic anemometer to measure wind speed, direction, and air temperature. It uses 4 cheap ($1 each) HC-SR04 ultrasonic rangefinder modules that output a pulse width proportional to the time of flight of the sound signal (topic is time nut related since it simultaneously measures the speed of sound in 4 directions to a pretty good accuracy/resolution using a cheap-ass microprocessor - ATMEGA328 (like and Arduino)... and does so without using any counter-timer channels). Now the question... I would like it to be able to output data in imperial or metric units. In what units is the typical wind speed reported (meters/sec, km/hour, ?). Also air pressure (millibars/hectopascals/pascals/?). == Mark, m/s and hPa are often used, but not exclusively. Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ 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. -- 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.
Re: [time-nuts] Weather/units question for European members
In message blu170-w517a3e7d32e32be4c3d3a4ce...@phx.gbl, Mark Sims writes: I am building a weather sensor that includes a ultrasonic anemometer Now the question... I would like it to be able to output data in imperial or metric units. In what units is the typical wind speed reported (meters/sec, km/hour, ?). Also air pressure (millibars/hectopascals/pascals/?). Whatever you do, use SI units internally and make it an option for the user to get those. Convert from SI to whatever the user wants in their local cultural geograpy. PS: In Denmark we use the SI units: Meter per second and hectopascal. See for instance: http://www.dmi.dk/vejr/til-lands/regionaludsigten/vssjaelland/ -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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] Weather/units question for European members
Hi Mark, I second Paul Henning, here in Europe we use officially the SI standard, does mean m/s and hPa! Privately used other units are another thing like km/h or units Beaufort and mb (millibar), but not official. If possible use always the international SI units and as personal choice km/h, hPa and millibar are anyway same numbers. Regards Arnold Am 24.05.2014 03:16, schrieb Mark Sims: I am building a weather sensor that includes a ultrasonic anemometer to measure wind speed, direction, and air temperature. It uses 4 cheap ($1 each) HC-SR04 ultrasonic rangefinder modules that output a pulse width proportional to the time of flight of the sound signal (topic is time nut related since it simultaneously measures the speed of sound in 4 directions to a pretty good accuracy/resolution using a cheap-ass microprocessor - ATMEGA328 (like and Arduino)... and does so wbbithout using any counter-timer channels). Now the question... I would like it to be able to output data in imperial or metric units. In what units is the typical wind speed reported (meters/sec, km/hour, ?). Also air pressure (millibars/hectopascals/pascals/?). ___ 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] Weather/units question for European members
Hello, Wind speed usually in meters/sec (when used for scientific data) or km/h (used in the news, so the people can compare with car speed ;) ) Pressure in millibars. Meteorologist also usually refers to hectopascals, but it is more for representing something at a given altitude (for example, winds at 700hPa) than for managing pressure data. Temperature in ºC Precipitation in liters/squared meter or millimeters (it is a 1:1 equivalence) Best regards, Javier On 24/05/2014 3:16, Mark Sims wrote: I am building a weather sensor that includes a ultrasonic anemometer to measure wind speed, direction, and air temperature. It uses 4 cheap ($1 each) HC-SR04 ultrasonic rangefinder modules that output a pulse width proportional to the time of flight of the sound signal (topic is time nut related since it simultaneously measures the speed of sound in 4 directions to a pretty good accuracy/resolution using a cheap-ass microprocessor - ATMEGA328 (like and Arduino)... and does so without using any counter-timer channels). Now the question... I would like it to be able to output data in imperial or metric units. In what units is the typical wind speed reported (meters/sec, km/hour, ?). Also air pressure (millibars/hectopascals/pascals/?). ___ 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] Weather/units question for European members
hektopascal is pseudo-SI form, as it is a compromize between the old milibar and propper SI unit of Pascal with suitable prefix 1 mbar = 1 hPa, but since we have normal pressure at 1013 mbar we should write it as 101,3 kPa but not 1013 hPa if we is to follow SI all the way. Temperature in C is really not strict SI, but accepted. m/s for windspeeds is the proper unit, while km/h is only used when explaining high windspeeds. Cheers, Magnus On 05/24/2014 02:01 PM, Javier Herrero wrote: Hello, Wind speed usually in meters/sec (when used for scientific data) or km/h (used in the news, so the people can compare with car speed ;) ) Pressure in millibars. Meteorologist also usually refers to hectopascals, but it is more for representing something at a given altitude (for example, winds at 700hPa) than for managing pressure data. Temperature in ºC Precipitation in liters/squared meter or millimeters (it is a 1:1 equivalence) Best regards, Javier On 24/05/2014 3:16, Mark Sims wrote: I am building a weather sensor that includes a ultrasonic anemometer to measure wind speed, direction, and air temperature. It uses 4 cheap ($1 each) HC-SR04 ultrasonic rangefinder modules that output a pulse width proportional to the time of flight of the sound signal (topic is time nut related since it simultaneously measures the speed of sound in 4 directions to a pretty good accuracy/resolution using a cheap-ass microprocessor - ATMEGA328 (like and Arduino)... and does so without using any counter-timer channels). Now the question... I would like it to be able to output data in imperial or metric units. In what units is the typical wind speed reported (meters/sec, km/hour, ?). Also air pressure (millibars/hectopascals/pascals/?). ___ 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] Ublox 7
Having used lately ublox 6M for GPSDO work I decided to buy a couple of MAX 7C's on ebay for $ 16.00 181293242043 Super results. We are going to do some saw tooth analysis but most likely will not post them because the deterioration of the list has resulted in many on the real time nuts have gone away and do like we do every thing off list since this has deteriorated in to a chat room with the majority of the listings not time or frequency related. Serious time nuts can contact me off list and maybe be added to the group. We are doing some neat projects. Bert Kehren ___ 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] Ublox 7
On 5/24/2014 7:22 AM, ewkeh...@aol.com wrote: Having used lately ublox 6M for GPSDO work I decided to buy a couple of MAX 7C's on ebay for $ 16.00 181293242043 Super results. Now listed as: 171339542977 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.
Re: [time-nuts] Ublox 7
Sorry to lose you, Bert. Evidently a new exclusive group is just what you need. Don ewkeh...@aol.com Having used lately ublox 6M for GPSDO work I decided to buy a couple of MAX 7C's on ebay for $ 16.00 181293242043 Super results. We are going to do some saw tooth analysis but most likely will not post them because the deterioration of the list has resulted in many on the real time nuts have gone away and do like we do every thing off list since this has deteriorated in to a chat room with the majority of the listings not time or frequency related. Serious time nuts can contact me off list and maybe be added to the group. We are doing some neat projects. Bert Kehren ___ 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. -- The power of accurate observation is commonly called cynicism by those who have not got it. -George Bernard Shaw Dr. Don Latham AJ7LL Six Mile Systems LLC 17850 Six Mile Road Huson, MT, 59846 mail: POBox 404 Frenchtown MT 59834-0404 VOX 406-626-4304 Skype: buffler2 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.
Re: [time-nuts] Ublox 7
Don I will continue to be part of the list but am frustrated with the loss of some of the best we used to have and I do not consider my self one of them, but I learned immensely from then. I am not the only one with that opinion looking at the number of responses I am getting. I do not know how long you have been on the list but it used to be different and better. Bert Kehren . In a message dated 5/24/2014 12:33:47 P.M. Eastern Daylight Time, d...@montana.com writes: Sorry to lose you, Bert. Evidently a new exclusive group is just what you need. Don ewkeh...@aol.com Having used lately ublox 6M for GPSDO work I decided to buy a couple of MAX 7C's on ebay for $ 16.00 181293242043 Super results. We are going to do some saw tooth analysis but most likely will not post them because the deterioration of the list has resulted in many on the real time nuts have gone away and do like we do every thing off list since this has deteriorated in to a chat room with the majority of the listings not time or frequency related. Serious time nuts can contact me off list and maybe be added to the group. We are doing some neat projects. Bert Kehren ___ 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. -- The power of accurate observation is commonly called cynicism by those who have not got it. -George Bernard Shaw Dr. Don Latham AJ7LL Six Mile Systems LLC 17850 Six Mile Road Huson, MT, 59846 mail: POBox 404 Frenchtown MT 59834-0404 VOX 406-626-4304 Skype: buffler2 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] Ublox 7
bert, and how, please, are us newbies and dabblers supposed to learn from you, the elite time-nuts, when you keep your discoveries secret, only accessible to a group of hand-picked individuals? of course, this is a free world, and you, like everybody, is free to share or not to share your knowledge. however, this is my place to learn, and you don't do me a favour by saying goodbye to the group. why not share your knowledge here, ignore the silly questions of the not so bright, but give them the opportunity to follow your discussions with the ones that are on a par with you? that i'd appreciate very much! hans ...because the deterioration of the list has resulted in many on the real time nuts have gone away and do like we do every thing off list since this has deteriorated in to a chat room with the majority of the listings not time or frequency related. Serious time nuts can contact me off list and maybe be added to the group. ___ 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] Weather/units question for European members
Here in Canada, for many years we have officially used km/hr and kilopascals (kPa) for all reporting (both civil and aviation). These units are now easily understood by the general population. Personally, for pressure I preferred hectopascals but over the years even I have adapted to the official unit. Sounds like you have a really neat project. ... Martin VE3OAT ___ 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] Ublox 7
In message 41ebc.73c6c61.40b25...@aol.com, ewkeh...@aol.com writes: Hans we are not elite most of those have long gone if you look back four years ore more [...] If you are talking about people like me, the reason for my current lack of activity is that I'm not doing much time-nuttery right now, for a number of reasons which have absolutely nothing to do with the S/N of time-nuts. Poul-Henning PS: I actually completed a bit of very interesting time-nuttery last year which I guess I should have reported here: A prototype computing cluster for the adaptive optics of mirror 3 and 4 in the ESO ELT telescope: https://www.eso.org/sci/meetings/2012/RTCWorkshop/4_1-kamp.pdf -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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] Weather/units question for European members
Hi Mark: The key benefit of an ultrasonic wind speed/direction sensor is that it can detect very slow wind speeds. My Peet Bros. system does not start telling me anything until the speed is a few MPH. http://www.prc68.com/I/UltimeterWeatherStation.shtml But all the weather stations I've seen don't tell you if the wind is backing or veering and how fast that's going on. This is critical for forecasting. It would be possible to have a graphical display the would be like looking down on a smoke stack with the smoke trail showing the history of wind direction. See the Sager Weather Caster book for more on that. http://www.prc68.com/I/Weather.shtml Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Mark Sims wrote: I am building a weather sensor that includes a ultrasonic anemometer to measure wind speed, direction, and air temperature. It uses 4 cheap ($1 each) HC-SR04 ultrasonic rangefinder modules that output a pulse width proportional to the time of flight of the sound signal (topic is time nut related since it simultaneously measures the speed of sound in 4 directions to a pretty good accuracy/resolution using a cheap-ass microprocessor - ATMEGA328 (like and Arduino)... and does so without using any counter-timer channels). Now the question... I would like it to be able to output data in imperial or metric units. In what units is the typical wind speed reported (meters/sec, km/hour, ?). Also air pressure (millibars/hectopascals/pascals/?). ___ 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] Ublox 7
Hi, On 05/24/2014 10:38 PM, Poul-Henning Kamp wrote: In message 41ebc.73c6c61.40b25...@aol.com, ewkeh...@aol.com writes: Hans we are not elite most of those have long gone if you look back four years ore more [...] If you are talking about people like me, the reason for my current lack of activity is that I'm not doing much time-nuttery right now, for a number of reasons which have absolutely nothing to do with the S/N of time-nuts. Poul-Henning PS: I actually completed a bit of very interesting time-nuttery last year which I guess I should have reported here: A prototype computing cluster for the adaptive optics of mirror 3 and 4 in the ESO ELT telescope: https://www.eso.org/sci/meetings/2012/RTCWorkshop/4_1-kamp.pdf Poul-Henning reporting on some cool stuff as always. My lack of contribution has to do with other things as well, including topics I can contribute on. Meanwhile I'm hacking away on one of several time-nut related projects I wish will mature to the level that I have something to report to the list about. But yes, I can understand Bert's frustration. Cheers, Magnus ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] RE : Re: Weather/units question for European members
FYI, In France, we also use SI units, hPa for atmospheric pressure, but m/s in technical reports (marine, aviation. ..) and km/h in consumer products aka weather forecasts on TV... HTH Best regards, Jean-Louis Oneto Envoyé depuis un mobile Samsung Message d'origine De : Poul-Henning Kamp p...@phk.freebsd.dk Date :24/05/2014 08:45 (GMT+01:00) A : Discussion of precise time and frequency measurement time-nuts@febo.com,Mark Sims hol...@hotmail.com Objet : Re: [time-nuts] Weather/units question for European members In message blu170-w517a3e7d32e32be4c3d3a4ce...@phx.gbl, Mark Sims writes I am building a weather sensor that includes a ultrasonic anemometer Now the question... I would like it to be able to output data in imperial or metric units. In what units is the typical wind speed reported (meters/sec, km/hour, ?). Also air pressure (millibars/hectopascals/pascals/?). Whatever you do, use SI units internally and make it an option for the user to get those. Convert from SI to whatever the user wants in their local cultural geograpy. PS: In Denmark we use the SI units: Meter per second and hectopascal. See for instance: http://www.dmi.dk/vejr/til-lands/regionaludsigten/vssjaelland/ -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ 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] Ublox 7
While I agree the noise has risen quite a bit, as a mostly lurker here, I've learned quite a bit just watching the conversations. Indeed when Dr. Bruce posts I'm invariably driven into days of additional study to ponder his responses :-) Maybe someone could throw up a web page with the Ublox 7 findings if you don't want to discuss on this list? I have a selfish self interest as I too have a couple of 7's on the way to the US from China! Scott On May 24, 2014, at 10:07 AM, Hans Holzach hans.holz...@gmail.com wrote: bert, and how, please, are us newbies and dabblers supposed to learn from you, the elite time-nuts, when you keep your discoveries secret, only accessible to a group of hand-picked individuals? of course, this is a free world, and you, like everybody, is free to share or not to share your knowledge. however, this is my place to learn, and you don't do me a favour by saying goodbye to the group. why not share your knowledge here, ignore the silly questions of the not so bright, but give them the opportunity to follow your discussions with the ones that are on a par with you? that i'd appreciate very much! hans ...because the deterioration of the list has resulted in many on the real time nuts have gone away and do like we do every thing off list since this has deteriorated in to a chat room with the majority of the listings not time or frequency related. Serious time nuts can contact me off list and maybe be added to the group. ___ 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] time-nuts Digest, Vol 118, Issue 51
called cynicism by those who ave not got it. George Bernard Shaw Dr. Don Latham AJ7LL ix Mile Systems LLC 7850 Six Mile Road uson, MT, 59846 ail: POBox 404 renchtown MT 59834-0404 OX 406-626-4304 kype: buffler2 ww.lightningforensics.com ww.sixmilesystems.com __ ime-nuts mailing list -- time-nuts@febo.com o unsubscribe, go to ttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts nd follow the instructions there. -- Message: 3 ate: Sat, 24 May 2014 19:07:27 +0200 rom: Hans Holzach hans.holz...@gmail.com o: time-nuts@febo.com ubject: Re: [time-nuts] Ublox 7 essage-ID: 5380d1cf.6070...@gmail.com ontent-Type: text/plain; charset=ISO-8859-15; format=flowed bert, and how, please, are us newbies and dabblers supposed to learn from you, he elite time-nuts, when you keep your discoveries secret, only ccessible to a group of hand-picked individuals? of course, this is a ree world, and you, like everybody, is free to share or not to share our knowledge. however, this is my place to learn, and you don't do me favour by saying goodbye to the group. why not share your knowledge ere, ignore the silly questions of the not so bright, but give them the pportunity to follow your discussions with the ones that are on a par ith you? that i'd appreciate very much! hans ...because the deterioration of the list has resulted in many on the real time nuts have gone away and do like we do every thing off list since this has deteriorated in to a chat room with the majority of the listings not time or frequency related. Serious time nuts can contact me off list and maybe be added to the group. -- Message: 4 ate: Sat, 24 May 2014 15:48:27 -0400 (EDT) rom: ewkeh...@aol.com o: time-nuts@febo.com ubject: Re: [time-nuts] Ublox 7 essage-ID: 41ebc.73c6c61.40b25...@aol.com ontent-Type: text/plain; charset=us-ascii Hans we are not elite most of those have long gone if you look back four years re more and that is my main frustration since none of the things I have orked on would have been possible with out them. We will announce some work oon but the frustration is with the listings that have absolutely nothing o do with time nuts issues and that has resulted that some of our best do ot consider it worth while to enter a dialog. am not saying good bye and let me make clear there no such thing as a illy question as long as it is on time frequency subjects. s an example a couple of years ago it deteriorated in to discussion of erman Home Radiator brass fittings having built a home in Germany I know bout the subject but some how did not think this was the place. still hope that some say enough is enough and maybe get back to what it as and again when on subject there are no stupid questions. Not asking is sign of ignorance and stupidity. But on this site please limit it to time ut issues. e have a small group off list and will expand it to focus on time nut rojects since focused dialog on a project has not been possible for quite some time. s an example a GPSDO for the FE 5680 that if there is an interest could ave a kit price of $ 45 shipping and handling included. Have to find some ne that will do the kitting and shipping I will definitely not do it. There s plenty of margin for some one. Actual Material cost will be between $ 15 nd 20 depending on volume. ert Kehren n a message dated 5/24/2014 2:46:32 P.M. Eastern Daylight Time, ans.holz...@gmail.com writes: bert, and how, please, are us newbies and dabblers supposed to learn from you, he elite time-nuts, when you keep your discoveries secret, only ccessible to a group of hand-picked individuals? of course, this is a ree world, and you, like everybody, is free to share or not to share our knowledge. however, this is my place to learn, and you don't do me favour by saying goodbye to the group. why not share your knowledge ere, ignore the silly questions of the not so bright, but give them the pportunity to follow your discussions with the ones that are on a par ith you? that i'd appreciate very much! hans ...because the deterioration of the list has resulted in many on he real time nuts have gone away and do like we do every thing off ist since this has deteriorated in to a chat room with the majority f the listings not time or frequency related. Serious time nuts can ontact me off list and maybe be added to the group. ___ ime-nuts mailing list -- time-nuts@febo.com o unsubscribe, go to ttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts nd follow the instructions there. -- next part -- non-text attachment was scrubbed... ame: P1010122-web 1.jpg ype: image/jpeg ize: 77645 bytes esc: not available RL: http://www.febo.com/pipermail/time-nuts/attachments/20140524/798ca37c/attachment.jpg
Re: [time-nuts] Ublox 7
There have been a couple of questions on and off list. as to the specific listing. I did forget to mention one thing. The unit comes with a built in antenna. For time application not exactly what we want Not easy to take off since it is a block of ceramic with a pin through the center with little tolerance. Un soldering will not do doe to the heat sink created by the ceramic. Best way is to put the ceramic in a vice on its side excerpt a lot of pressure and it will brake or use a center punch or small hammer while it is under pressure. It will shatter. next remove the pieces with a knife since there is some glue. Now you are left with a pin. If you want to use the hole find a way to hold the board, heat the pin with a soldering iron and wiggle it out. Did it with two units no problem. Bert Kehren In a message dated 5/24/2014 5:57:04 P.M. Eastern Daylight Time, slbur...@gmail.com writes: While I agree the noise has risen quite a bit, as a mostly lurker here, I've learned quite a bit just watching the conversations. Indeed when Dr. Bruce posts I'm invariably driven into days of additional study to ponder his responses :-) Maybe someone could throw up a web page with the Ublox 7 findings if you don't want to discuss on this list? I have a selfish self interest as I too have a couple of 7's on the way to the US from China! Scott On May 24, 2014, at 10:07 AM, Hans Holzach hans.holz...@gmail.com wrote: bert, and how, please, are us newbies and dabblers supposed to learn from you, the elite time-nuts, when you keep your discoveries secret, only accessible to a group of hand-picked individuals? of course, this is a free world, and you, like everybody, is free to share or not to share your knowledge. however, this is my place to learn, and you don't do me a favour by saying goodbye to the group. why not share your knowledge here, ignore the silly questions of the not so bright, but give them the opportunity to follow your discussions with the ones that are on a par with you? that i'd appreciate very much! hans ...because the deterioration of the list has resulted in many on the real time nuts have gone away and do like we do every thing off list since this has deteriorated in to a chat room with the majority of the listings not time or frequency related. Serious time nuts can contact me off list and maybe be added to the group. ___ 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] Ublox 7
From: ewkeh...@aol.com [] There have been a couple of questions on and off list. as to the specific listing. I did forget to mention one thing. The unit comes with a built in antenna. [] Bert Kehren === You can also get the u-blox 7 without the antenna - for example this pre-built unit for the Raspberry Pi, which has an SMA socket: http://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html#no-soldering Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ 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.
