Re: [time-nuts] Visual clock comparison

2015-04-19 Thread Chris Albertson
. ___ 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

Re: [time-nuts] Visual clock comparison

2015-04-18 Thread Chris Albertson
a little bit. Thanks ! -- WBW, V.P. ___ 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

Re: [time-nuts] GPSDO disciplining algorithms

2015-04-14 Thread Chris Albertson
://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

Re: [time-nuts] Modern HW replacement for ATOM based NTP server?

2015-04-07 Thread Chris Albertson
-bearing fan in...73Frank HughesKJ4OLL ___ 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

Re: [time-nuts] Mini-time lab cost and maintenance

2015-04-06 Thread Chris Albertson
___ 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

Re: [time-nuts] Striking change in iPhone time accuracy with 8.2

2015-04-01 Thread Chris Albertson
/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] Striking change in iPhone time accuracy with 8.2

2015-04-01 Thread Chris Albertson
. This WILL sub-ms clicks. -- 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] Need advice for multilateration setup

2015-03-27 Thread Chris Albertson
, -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. -- Chris Albertson Redondo Beach, California

Re: [time-nuts] Need advice for multilateration setup

2015-03-27 Thread Chris Albertson
transmitter. I think this can be backed out in processing. Someone needs to write the equations and post them here. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] Comparing the BeagleBone Black Raspberry Pi asNTP servers

2015-03-25 Thread Chris Albertson
would not work to converge the error to zero setting the rate would. Of course the best thing would be to buy small clock you could take with you but NTP was designed to run on a dump network that only moves data without timing it. -- Chris Albertson Redondo Beach, California

Re: [time-nuts] Z3810AS PPS to a Raspberry Pi

2015-03-23 Thread Chris Albertson
surprised to can't get the Pi to interrupt on the raising edge of the PPS and that you had to make the pulse longer. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com

Re: [time-nuts] Comparing the BeagleBone Black Raspberry Pi as NTP servers

2015-03-22 Thread Chris Albertson
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. -- Chris Albertson Redondo Beach, California

Re: [time-nuts] Motorola Oncore UT+ firmware upgrade backup power questions

2015-03-15 Thread Chris Albertson
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. -- Chris Albertson Redondo Beach, California ___ time-nuts

Re: [time-nuts] Motorola Oncore UT+ firmware upgrade backup power questions

2015-03-13 Thread Chris Albertson
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

Re: [time-nuts] NTP stratum 1 appliances with different (GPS, etc) cores...

2015-03-12 Thread Chris Albertson
they are doing it adjust the hands on the clock several times. -- 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

Re: [time-nuts] NTP stratum 1 appliances with different (GPS, etc) cores...

2015-03-09 Thread Chris Albertson
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

Re: [time-nuts] Trimble Thunderbolt NMEA ?

2015-03-03 Thread Chris Albertson
. The last version of the kit has a uC with two serial ports. I m out of the kits at the moment but I have a few spare boards left over. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go

Re: [time-nuts] Trimble Thunderbolt NMEA ?

2015-03-02 Thread Chris Albertson
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] Trimble Thunderbolt NMEA ?

2015-03-02 Thread Chris Albertson
-- VK2XAX :: QF56if23 :: BMARC :: WIA :: AMSATVK ___ 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

Re: [time-nuts] Looking for advice to get a submillisecond setup

2015-02-24 Thread Chris Albertson
is sub millisecond so the tower is a non-issue. All you need is a view of most of the sky. don't worry about noise either. NTP will NEVER notice effects smaller than a microsecond Chris Albertson Redondo Beach, California ___ time-nuts mailing list

Re: [time-nuts] Looking for advice to get a submillisecond setup

2015-02-21 Thread Chris Albertson
___ 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

Re: [time-nuts] Looking for advice to get a submillisecond setup

2015-02-20 Thread Chris Albertson
. ___ 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

Re: [time-nuts] Looking for advice to get a submillisecond setup

2015-02-20 Thread Chris Albertson
high-end gear if the requirement is only sub millisecond. Mostly I'd say don't spend money on performance you don't need but in some cases you get great performance for less money. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list

Re: [time-nuts] Looking for advice to get a submillisecond setup

2015-02-20 Thread Chris Albertson
6:30 AM, Chris Albertson wrote: I think the easiest cable to make really long, if one must be long is the antenna cable. Use 100 meters of the kind of cable they use for cable TV. It comes double shield and has those compression type F connectors. The cable can cary both the GPS signal

Re: [time-nuts] Looking for advice to get a submillisecond setup

2015-02-19 Thread Chris Albertson
enough. ___ 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

Re: [time-nuts] Racal Dana 1992 universal counter

2015-01-22 Thread Chris Albertson
-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

Re: [time-nuts] In search of ways to improve Raspberry Pi stratum 1server

2015-01-12 Thread Chris Albertson
@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

Re: [time-nuts] Arduino GPIB

2015-01-12 Thread Chris Albertson
may not even need the GPIB connector.You could do this to many older instruments then use USB to a USB hub, then to a computer. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go

Re: [time-nuts] Sources for Mission Time Clock

2015-01-11 Thread Chris Albertson
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

Re: [time-nuts] Soekris without a GPS receiver.

2015-01-01 Thread Chris Albertson
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] New GPSDO on EBAY From China

2014-12-29 Thread Chris Albertson
-- 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

Re: [time-nuts] Soekris without a GPS receiver.

2014-12-29 Thread Chris Albertson
-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

Re: [time-nuts] Soekris without a GPS receiver.

2014-12-29 Thread Chris Albertson
It is just a signal of the correct voltage, no data. -- 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] Soekris without a GPS receiver.

2014-12-27 Thread Chris Albertson
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] Simple AC mains zero-cross detector

2014-12-23 Thread Chris Albertson
@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

Re: [time-nuts] Lady Heather and comm port setup...

2014-12-17 Thread Chris Albertson
, 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

Re: [time-nuts] Which First GPSDO to buy?

2014-12-14 Thread Chris Albertson
the chips on that $3 board cost more than $3. (I don't even see how shipping from China can be that cheap.) On Sat, Dec 13, 2014 at 10:56 PM, Patrick Tudor ptu...@ptudor.net wrote: On Dec 13, 2014, at 9:47 PM, Chris Albertson albertson.ch...@gmail.com wrote: Actually I've added some features

Re: [time-nuts] Set time on Solaris computer from HP 58503A

2014-12-14 Thread Chris Albertson
times even if the internal clock is dead-on perfect. Same for disk time stamps, these is lag in the IO system too -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi

Re: [time-nuts] Which First GPSDO to buy?

2014-12-13 Thread Chris Albertson
to purchase as a first-time acquisition: -- 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] ***SPAM*** Re: Errors on HP 58503A GPS time frequency reference receiver bought from yixunhk.

2014-12-13 Thread Chris Albertson
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

Re: [time-nuts] gravity, space and time

2014-12-13 Thread Chris Albertson
be able to detect this on its own. What do you think? Folkert van Heusden ___ 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

Re: [time-nuts] Which First GPSDO to buy?

2014-12-13 Thread Chris Albertson
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

Re: [time-nuts] Beaglebone NTP server

2014-12-12 Thread Chris Albertson
-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

Re: [time-nuts] gravity, space and time

2014-12-12 Thread Chris Albertson
shelf in your lab because of the different gravitational field at those two different elevations. Some people will have such clocks but most have only those eBay 10MHz OCXOs Maybe some kind of laser interferometer would wrk? -- Chris Albertson Redondo Beach, California

Re: [time-nuts] gravity, space and time

2014-12-12 Thread Chris Albertson
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

Re: [time-nuts] Beaglebone NTP server

2014-12-11 Thread Chris Albertson
with processor boards is a real challenge. ___ 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

Re: [time-nuts] up converting 10MHz to 20MHz

2014-12-10 Thread Chris Albertson
this to drive the MCU. I'd do that early rather than later. -- 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] Beaglebone NTP server

2014-12-10 Thread Chris Albertson
-- 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

Re: [time-nuts] lightening protection of a GPSDO system / optical isolated distribution amp

2014-12-07 Thread Chris Albertson
precautions and ground the iron pipe with a $7 aluminum ground wire just like you would do to an old fashioned TV antenna. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] tcxo

2014-12-07 Thread Chris Albertson
to once to the jack. Or maybe you ad a switch so you can use the old crystal or use the jack.Debugging is easier when you can disconnect a cable and test each part independently. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list

Re: [time-nuts] Beaglebone NTP server

2014-12-07 Thread Chris Albertson
in user space? It is not interrupt driven? In the implementations I've seen the critical real time work is done inside the PPS interrupt handler and then of course ntpd runs in userland and can take as much time as it needs -- Chris Albertson Redondo Beach, California

Re: [time-nuts] thoughts on lightning arrestors

2014-11-28 Thread Chris Albertson
hol...@hotmail.com wrote: Bark effect? ;-) Lightning hit a tree behind where I lived and three other trees near it also exploded... you ain't gonna arrest a direct lightning strike. -- Chris Albertson Redondo Beach, California ___ time-nuts

Re: [time-nuts] Distribution Amp

2014-11-28 Thread Chris Albertson
one of the pampas is not longer in production but you can use a search on the Digikey web site to find a replacement . I think this is what people meant, not to simply buy the TAPR product but to study its design. -- Chris Albertson Redondo Beach, California

Re: [time-nuts] 10 MHz Filters

2014-11-27 Thread Chris Albertson
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] CentOS 7, Motorola GPS receiver and NTP

2014-11-26 Thread Chris Albertson
the leading edge. -- 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] lightening protection of a GPSDO system / optical isolated distribution amp

2014-11-26 Thread Chris Albertson
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

Re: [time-nuts] lightening protection of a GPSDO system / optical isolated distribution amp

2014-11-26 Thread Chris Albertson
://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

Re: [time-nuts] rs-422 rs-232 to fast ethernet converter

2014-11-22 Thread Chris Albertson
remember using it first in the late 1970's back when the Internet was still called the Darpa Net and it only connected a few dozen computers. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go

Re: [time-nuts] future NTP programs...

2014-11-10 Thread Chris Albertson
rip ping time from some peer to your server then what can you do but ask the server? Mostly the thinks you monitor are NTP internal states and statistics. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] Divide by five -Ensemble

2014-11-10 Thread Chris Albertson
select a good oscillator and try and discipline it well but there will still be an error. This is like what a GPS does when it outputs a sawtooth function. The GPS does it's best to put the PPS at theocracy time. It can't get it perfect but it can determine the error -- Chris Albertson Redondo

Re: [time-nuts] Divide by five

2014-11-09 Thread Chris Albertson
. (Think about this if you want to make your design public. If the technology is exotic,no one but you will contribute to further development.) If you like those FPGA boards then you can usually synthesize a CPU and run the controller code on that. -- Chris Albertson Redondo Beach, California

Re: [time-nuts] Divide by five

2014-11-09 Thread Chris Albertson
to use something so complex to simulate a $2 part. -- 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] Divide by five -Ensemble

2014-11-09 Thread Chris Albertson
with Clock Select Algorithm. -- 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] Divide by five

2014-11-07 Thread Chris Albertson
some old RAM memory or PCI boards and gluing down a parallel row of them. Dead bug style works well with SMD also. We are going to have to get used to working with these. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time

Re: [time-nuts] NPR Story I heard this morning

2014-11-03 Thread Chris Albertson
, 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

Re: [time-nuts] NPR Story I heard this morning

2014-11-03 Thread Chris Albertson
completely different. So, to that I said: WOW! Wait just a damn minute. I got into this so I can tell time precisely. Now I'm back to to the beginning. I know I am exaggerating a bit here but still. -GKH On 11/03/2014 11:09 AM, Chris Albertson wrote: Yes, A story about time and frequency

Re: [time-nuts] NPR Story I heard this morning

2014-11-03 Thread Chris Albertson
. ___ 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

Re: [time-nuts] NPR Story I heard this morning

2014-11-03 Thread Chris Albertson
. ___ 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

Re: [time-nuts] Digital temperature compensation

2014-11-01 Thread Chris Albertson
/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

Re: [time-nuts] [Little OT now]Re: Cheap Frequency chip with serial output

2014-10-27 Thread Chris Albertson
will still get good enough resolution for tuning an old tube based radio. -- 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

Re: [time-nuts] 10MHz Rubidium reference source for frequency

2014-10-27 Thread Chris Albertson
. The PID tries to keep this value are some arbitrary constant value Lars' idea was to make this as simple as could be. Mine was to make it even more simple. I found I could not remove any of his hardware parts but I could make the software much smaller. -- Chris Albertson Redondo Beach, California

Re: [time-nuts] Cheap Frequency chip with serial output

2014-10-26 Thread Chris Albertson
for. https://www.sparkfun.com/products/12765 You can find these on eBay for a lower price. -- 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

Re: [time-nuts] 10MHz Rubidium reference source for frequency counter

2014-10-26 Thread Chris Albertson
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] [Little OT now]Re: Cheap Frequency chip with serial output

2014-10-26 Thread Chris Albertson
to a zero crossing detector then to a counter in the PI. Prolly it has enough horsepower/pins to capture frequency/band selector and emulate everything so no PI needed. Still I don't like the idea to develop in C while having Lazarus on a PI for 35bucks. -- Chris Albertson Redondo Beach

Re: [time-nuts] 10MHz Rubidium reference source for frequency

2014-10-26 Thread Chris Albertson
think gives better results because you do not have to transfer frequency from the crystal to the Rb. Unless you need the OCXO for some other reason. I was luck to have bought the FE5680 back when they were $35 each. They work well enough for my 10 digit frequency counter. -- Chris Albertson

Re: [time-nuts] float chargers for oscillator backup power

2014-10-26 Thread Chris Albertson
-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. -- Chris

Re: [time-nuts] float chargers for oscillator backup power

2014-10-26 Thread Chris Albertson
to supply backup power to an entire house is with a conversion kit for a Toyota Prius. Well, if you already happen to own the Prius it's a cheap why to have a very powerful generator. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing

Re: [time-nuts] LTE-Lite module

2014-10-25 Thread Chris Albertson
you want, just because it is more efficient.) Best regards, Charles ___ 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

Re: [time-nuts] If any of your USB devices have stopped working lately...

2014-10-23 Thread Chris Albertson
://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

Re: [time-nuts] GPS for ntp

2014-10-21 Thread Chris Albertson
the accuracy is a few microseconds. -- 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] GPS for ntp

2014-10-20 Thread Chris Albertson
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] LTE-Lite module

2014-10-19 Thread Chris Albertson
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. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing

Re: [time-nuts] Lightning arrestors for GPSDO antenna

2014-10-17 Thread Chris Albertson
plastic conduit is just easier to use -- 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] Lightning arrestors for GPSDO antenna

2014-10-17 Thread Chris Albertson
the danger the electric code addresses is that connections between conduit sections become loose over time and might corrode. I think the threaded conduit would work fine. That stuff is like water pipe but smoother inside. -- Chris Albertson Redondo Beach, California

Re: [time-nuts] Lightning arrestors for GPSDO antenna

2014-10-16 Thread Chris Albertson
://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

Re: [time-nuts] Wine cooler as temperature chamber

2014-10-14 Thread Chris Albertson
A TEC is not a very good device for cooling a large enclosure. It works for the case of a wine coolers because (1) you don't need wine to be very cool, 55F is fine and you don't open the door very often either. But TECs do have a good use where they ar perfect. That is cooling some small

Re: [time-nuts] Wine cooler as temperature chamber

2014-10-14 Thread Chris Albertson
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

Re: [time-nuts] Wine cooler as temperature chamber

2014-10-13 Thread Chris Albertson
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Re: [time-nuts] Advice on sighting a roof mounted gps area please

2014-10-12 Thread Chris Albertson
@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

Re: [time-nuts] F*watch

2014-10-11 Thread Chris Albertson
files. Or what would it cost to build a run of say one dozen?Apple prices their watch at $350 which at first seemed really high but then I started thinking if that was a high price or not -- Chris Albertson Redondo Beach, California ___ time-nuts

Re: [time-nuts] GPS-disciplining an ordinary VCXO?

2014-09-29 Thread Chris Albertson
ago. I got it and was able to build a GPSDO for under $8 total. The trick is to do everything with the uP. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

Re: [time-nuts] Any simple way to get 200 MHz from 10 MHz?

2014-09-28 Thread Chris Albertson
reference. -- 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] SMTP with Trimble Thunderbolt-E

2014-09-28 Thread Chris Albertson
. It is not hard to decode the binary data coming from the GPS recover. You can start with an open source TSIP reader then modify it to send SNMP. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] SMTP with Trimble Thunderbolt-E

2014-09-26 Thread Chris Albertson
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] Correcting jitter on the 1 PPS signal from a GPS receiver.

2014-09-13 Thread Chris Albertson
are measuring. And also are you SURE you are measuring the correct end of the pulse, you want the raising edge. It is easy to invert the pulse and therefore measure the falling edge. Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time

Re: [time-nuts] Update on my Arduino GPSDO / NTP server - going atomic

2014-09-05 Thread Chris Albertson
chip. It is more than enough for NTP. Arduino is now a WIDE range of products all the way for from this is the tiny $3 Chinese versions. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe

Re: [time-nuts] GPS antenna in snowy environment (was: LEA-6T Software.)

2014-08-28 Thread Chris Albertson
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] Practical Survey-In Accuracy?

2014-08-28 Thread Chris Albertson
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] MH370 Doppler

2014-08-20 Thread Chris Albertson
___ 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

Re: [time-nuts] MH370 Doppler

2014-08-19 Thread Chris Albertson
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.

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