Re: [time-nuts] Using the HP 58503a to correct your PC clock

2016-08-05 Thread Chris Albertson
ion 4 and I'm surprised at the size of correction every > >> couple minutes to my PC clock. I'd be happy if my PC clock were > accurate > >> to plus/minus 100ms. > >> Ron > ___ > time-nuts mailing list -- time-n

Re: [time-nuts] GPS antenna selection — lightning

2016-08-05 Thread Chris Albertson
You guys, well some of you are mixing to things 1) the building code requirement to ground an antenna is for the protection of the building. The building code don't care if you electronics is fried or not. The wire and ground rod keep the antenna mast at earth potential. 2) Those surge protec

Re: [time-nuts] GPS antenna selection - lightning

2016-08-06 Thread Chris Albertson
d the same rate. > >> If you have multiple, non bonded grounds, there is a different reference > >> for each ground. This is a major source for disaster. > >> > >> I spent seven years in lightning mitigation. I was told by professionals > >> that I w

Re: [time-nuts] GPS antenna selection - lightning

2016-08-07 Thread Chris Albertson
d fuse the various grounds to it. But the cost of having the trench dug (before even buying the wire) exceeds the cost of the equipment it would protect. TV sets are only $300 today.So most of us about $10 worth of protection (a coax ground block and #12 bare wire) and buy insurance. -- Chr

Re: [time-nuts] Safely getting the electrical length of a connected antenna feedline

2016-08-09 Thread Chris Albertson
rrow that will fit in a one square inch board. -- 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] Shera revisted

2016-08-10 Thread Chris Albertson
is not the way to go if you want to build 1,000 units but for a few tens of units it saves quite a to of work. Especially if a software update has to be done after shipping. The board's USB connection saves end users much hassle. -- Chris Albertson Redondo B

Re: [time-nuts] Shera revisted

2016-08-10 Thread Chris Albertson
this list with great interest. It feels > good to know that I am not the only nut > > BR/ > Joakim > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/

Re: [time-nuts] Heathkit clock available

2016-08-10 Thread Chris Albertson
as, Dedicated GPS receivers for car navigation, and 100 other things Heat does have one product that will do well. A mod board for an older heath signal generator. It's about $30 and an easy retrofit. Digital clocks are just not the amazing technical wonders they once were. -- Chris A

Re: [time-nuts] Working with SMT parts.

2016-08-12 Thread Chris Albertson
service (3 bare boards, 2 sided with > solder mask and silk screen) for prototypes and then buy the Gerbers -- 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] Working with SMT parts.

2016-08-12 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. > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To uns

Re: [time-nuts] Low cost SDR suitable for phase noise measurement?

2016-08-12 Thread Chris Albertson
he instructions there. >>> >>> >>> >>> ___ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> ___ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> >> >> ___ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > ___ > time-nuts 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. -- 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] Working with SMT parts.

2016-08-13 Thread Chris Albertson
PWB. >>> Since it is a hobby that has become a business, time matters to me, design >>> time and delivery. >>> >>> At that point, the cost of the Gerber becomes somewhat irrelevant. >>> >>> Note that you can make boards of any size in ExpressP

Re: [time-nuts] Working with SMT parts.

2016-08-13 Thread Chris Albertson
that form the 3D norm? Is your color green the > same as mine? > > Soldering SMD parts, I use my OptiVISOR x10, > a bit close but I can hold my breath. > > Ian, G4ICV,AB2GR > -- > ___ > time-nuts mailing list -- time-nuts

Re: [time-nuts] How to get PPS from ublox mini-PCI GPS to APU2 SoC serial port for ntpd

2016-08-14 Thread Chris Albertson
/forums/?page=post&id=CD275C4D-8050- > 408A-BD16-6F50468C74C2 > > > > I'm hoping someone here could help me out with this as I'm well in over my > head by now. > > > > > > > > Cheers, > > S > > _

Re: [time-nuts] How to get PPS from ublox mini-PCI GPS to APU2 SoC serial port for ntpd

2016-08-14 Thread Chris Albertson
-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 Albertson Redond

Re: [time-nuts] Holdover

2016-08-16 Thread Chris Albertson
NTP over a dial-up phone modem in the days before always-on Internet This was in the 1980's and it worked well enough. The normal case was "outage" as the modem connection was short and only a few times per day. But was good enough to re-calibrate a local clock Chris Albertson

Re: [time-nuts] GPSDO - probably a stupid question.

2016-08-17 Thread Chris Albertson
ftware, why not discipline the mother board's XO? Yes but it is a large amount of work to modify an existing product. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] negative mention of products (was: DIY VNA design)

2016-08-22 Thread Chris Albertson
ustry". I've >> not seen it move to things like technical comments about products, but it >> could well happen. >> >> Dave >> ___ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.c

Re: [time-nuts] What's the best Windows 10 ntp client?

2016-09-02 Thread Chris Albertson
s@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] Hobbyist grade or homebrew temperature testing chamber?

2016-09-05 Thread Chris Albertson
uts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/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] Why are PPS pulses so narrow? (was: 53132A triggering)

2016-09-17 Thread Chris Albertson
wrong edge. Yes it makes such a mistake hard to find but, I think that was the point. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/l

Re: [time-nuts] Lady Heather on MacOS X

2016-10-03 Thread Chris Albertson
han Intel architectures? Does it compile on ARM?. -- 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 Time Help

2016-10-04 Thread Chris Albertson
) running Linux and NTP with a GPS input are easy to get an order of magnitude better than your requirement. So are you stuck with windows. f so it can work with some rather complex setup. If you can select another OS then you get out of the box sub-millisecond performance with little effo

Re: [time-nuts] Need Time Help

2016-10-04 Thread Chris Albertson
on goes > directly into a hardware serial port. Here's a pictures of my connector: > <http://imgur.com/a/PEiBU> > > There's lots of other great GPS receivers with PPS output, including old > timing receivers like the Motorola Oncore, Trimble Resolution T, etc. > Thos

Re: [time-nuts] Need Time Help

2016-10-04 Thread Chris Albertson
> -- Miss Matheson, The Diamond Age, Neil Stephenson > ___ > 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 instruct

Re: [time-nuts] Need Time Help

2016-10-04 Thread Chris Albertson
s a continent or will see more of this then going to a nearby server > Bob > > > On Oct 4, 2016, at 9:05 PM, Chris Albertson > wrote: > > > > The problem, I think with your Internet sync's NTP servers is you are > only > > using one server S. The most co

Re: [time-nuts] Roughtime

2016-10-04 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

Re: [time-nuts] Need Time Help

2016-10-05 Thread Chris Albertson
where a GPS receiver is the only reference. > That document had only that short note, no details on why or specifics of > behavior. > > -- > Chris Caudle > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To uns

Re: [time-nuts] Need Time Help

2016-10-05 Thread Chris Albertson
sync is for a little bit tougher case than a local >>> area >>> network. >>> >>> --- Graham >>> >> > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m &

Re: [time-nuts] ntp and asymmetric delays

2016-10-06 Thread Chris Albertson
, 2016 at 5:14 AM, Magnus Danielson wrote: > > > On 10/05/2016 01:48 PM, Attila Kinali wrote: > >> On Tue, 4 Oct 2016 18:05:16 -0700 >> Chris Albertson wrote: >> >> The problem, I think with your Internet sync's NTP servers is you are only >>> usin

Re: [time-nuts] Measure GPSDO stability with minimum resources?

2016-10-06 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-nu

Re: [time-nuts] Inexpensive Alternative to a 5120A

2016-10-09 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] Inexpensive Alternative to a 5120A

2016-10-10 Thread Chris Albertson
he results be limited if I can only sample at 2.3 MSPS? Obviously I'n not directly sampling there 10MHz signal. I'm sampling there frequency difference that a mixer gives me. On Sun, Oct 9, 2016 at 4:16 PM, Bob Camp wrote: > Hi > > >> On Oct 9, 2016, at 6:18 PM, Chris

Re: [time-nuts] ntp and asymmetric delays

2016-10-11 Thread Chris Albertson
post my ntp output and ask for an opinion, then this > discussion popped up. It would appear that asymmetric delays are the > exact explanation for what I am seeing. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nu

Re: [time-nuts] For those that insist on using switching power supplies

2016-10-14 Thread Chris Albertson
he manufacturers are by definition of "counterfeit" being dishonest slim balls. Why would he care about anything other then that he can fool some people into buying his product. There are third party chargers that are not trying to copy a well known brand, these are usually much

Re: [time-nuts] For those that insist on using switching power supplies

2016-10-14 Thread Chris Albertson
wer supply. But what is that? I bet if varies a lot. And like I wrote before it may not even matter as phones don't directly use the 5 volt DC that these chargers produce. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list --

Re: [time-nuts] leontp offset?

2016-10-14 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] leontp offset?

2016-10-15 Thread Chris Albertson
he 10 ms offset *is* suspiciously close to what you would get with a 10 > ms pulse stretcher > *and* a setup that is triggering on the wrong edge. > -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] 1PPS to 32.768 khz

2016-10-18 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-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] 1PPS to 32.768 khz

2016-10-19 Thread Chris Albertson
bit micro processor and an > > external 32.768 crystal. Obviously the external crystal is > > awful for accuracy. > > > > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://w

Re: [time-nuts] 1PPS to 32.768 khz

2016-10-19 Thread Chris Albertson
from the GPS, and automatically set the > clock to the correct time after a power failure - something the original > clock could not do. As a double bonus, make the clock display leap seconds > correctly when they happen. > -- Chris Albertson Redondo Beach, California __

Re: [time-nuts] PC clock generator without 14.318MHz

2016-10-19 Thread Chris Albertson
-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/time-nuts >> and follow the instructions there. >> > ___ > time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] 1PPS to 32.768 khz

2016-10-19 Thread Chris Albertson
> > > > I wanted to get the opinion of anyone who has tried the Leo Bodnar GPSDO > ? > > For the money it appears to offer a beginner a lot of features. > > > > Thanks and reading the daily digest of what you guys are working on. > > I have a feeling if I am n

Re: [time-nuts] 1PPS to 32.768 khz

2016-10-19 Thread Chris Albertson
hat’s all a sub $1 solution…. > > > >Bob > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > --

Re: [time-nuts] 1PPS to 32.768 khz

2016-10-20 Thread Chris Albertson
L NTP server? Time will be within a couple tens of milliseconds they will be in sync well enough that the eye can not notice.But this means setting up a local NTP server. Any spare computer can do this you can connect a GPS if you like but will not help much in this use case -- Chris Alber

Re: [time-nuts] Linux PPS clues?

2016-10-20 Thread Chris Albertson
er expect worse performance.For best performance copy and paste the Linux PPS code and then re-build the Linux kernel with your new driver. Getting event time stamps much better then this requires some purpose built hardware outside of the computer. Chris Albertson Redondo Beach, C

Re: [time-nuts] Linux PPS clues?

2016-10-20 Thread Chris Albertson
Ave., Suite E, Bend, OR 97703 > g...@rellim.com Tel:+1 541 382 8588 > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time

Re: [time-nuts] Linux PPS clues?

2016-10-21 Thread Chris Albertson
-- > Malek's Law: > Any simple idea will be worded in the most complicated way. > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > -- 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] Has anybody checked this? GPSDO in kit

2016-10-22 Thread Chris Albertson
rmonics and needs to be filtered. > Giuseppe Marullo > IW2JWW - JN45RQ > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instruc

Re: [time-nuts] Has anybody checked this? GPSDO in kit

2016-10-22 Thread Chris Albertson
u have to remember what this thing replaces. In ham radio, some people are using vacuum tube oscillators with mechanical variable capacitor tuning. Maybe some advanced rigs use gear drive on the capacitor shaft to allow more exact tuning This Si chip is considerably better then 1940's techno

Re: [time-nuts] WWV receivers?

2016-10-26 Thread Chris Albertson
> 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 Al

Re: [time-nuts] WWV receivers?

2016-10-29 Thread Chris Albertson
| 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/cg

Re: [time-nuts] WWVB software for PC

2016-10-29 Thread Chris Albertson
tps://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] WWV receivers?

2016-10-29 Thread Chris Albertson
Radio. > > Attila Kinali > -- > Malek's Law: > Any simple idea will be worded in the most complicated way. > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go t

Re: [time-nuts] IRIG-B for OS X

2016-10-29 Thread Chris Albertson
ght I would ask before > diving in to that asp pit. > > 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

Re: [time-nuts] Temp/Humidity control systems?

2016-10-30 Thread Chris Albertson
e-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] WWVB software for PC

2016-11-02 Thread Chris Albertson
es > without relay on WWVB signal propagation. Sometimes its a challenge to get > WWVB in big cities because of location and QRM. > > -- > WBW, > > V.P. > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go t

Re: [time-nuts] Man with too many clocks.

2016-11-03 Thread Chris Albertson
fident > that I have not slipped one cycle. > > Can I do what I am trying to do or am I missing something? > > Pete. > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follo

Re: [time-nuts] How to get PPS from ublox mini-PCI GPS to APU2 SoC serial port for ntpd

2016-11-08 Thread Chris Albertson
/ > 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] How to get PPS from ublox mini-PCI GPS to APU2 SoC serial port for ntpd

2016-11-09 Thread Chris Albertson
yed somewhat. It is not even clear if the length of the delay is constant. If using the PPS for timing and the PPS is inverted you will have to measure the delay length an account for in the config file. -- Chris Albertson Redondo Beach, California _

Re: [time-nuts] How to get PPS from ublox mini-PCI GPS to APU2 SoC serial port for ntpd

2016-11-10 Thread Chris Albertson
ou should reset the pin, > which adds some ambiguity to the set/reset times. > Granted, I'm doing this on a general purpose PIC, but I have read comments > about various receivers having some jitter on the reset side of their 1PPS > pulse. > Bob > > ___

Re: [time-nuts] GPS Model ?

2016-11-13 Thread Chris Albertson
c0e04d8c95779afaa0cad9ed%7C1&sdata=0Xaed5Ff0AHg42sDZd% > 2BYbKdFEHAC%2FKYOmnIL%2Bc5mecY%3D&reserved=0 > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/li

Re: [time-nuts] precision timing pulse

2016-11-15 Thread Chris Albertson
me-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 un

Re: [time-nuts] precision timing pulse

2016-11-15 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@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] precision timing pulse

2016-11-16 Thread Chris Albertson
gt; time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/time-nuts >> and follow the instructions there. >> > > _______ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to

Re: [time-nuts] precision timing pulse

2016-11-16 Thread Chris Albertson
't available today. I haven't looked for eBay > style > low cost boards. > > > > -- > These are my opinions. I hate spam. > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/list

Re: [time-nuts] precision timing pulse

2016-11-17 Thread Chris Albertson
her connectors and passives. You can assign most functions to most pins and the CPU is roughly an order of magnitude better then Arduino With Arduino it is easy to run out of (say) analog inputs or especially external interrupts but with this ARM you don't run out of anything until basicall

Re: [time-nuts] precision timing pulse

2016-11-17 Thread Chris Albertson
it from their environment and > start your code with a disable interrupts. > > > -- > These are my opinions. I hate spam. > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.fe

Re: [time-nuts] How can I measure GPS Antenna quality?

2016-11-20 Thread Chris Albertson
S/N slots for each visible/working satellite? > > > -- > These are my opinions. I hate spam. > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mail

Re: [time-nuts] 53132 replacement fan

2016-11-22 Thread Chris Albertson
; slower turning/quieter fan. > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. > -- Chris Albertson Re

Re: [time-nuts] Fwd: Best replacement for Trimble Bullet antenna

2016-11-22 Thread Chris Albertson
/like as roof > mounted antennas? Are some of the 'Marine' antennas better? > > Russ > K0WFS > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman

Re: [time-nuts] UCCM arrived

2016-11-26 Thread Chris Albertson
> > > > PS: the other clock (qrp-labs) is way behind schedule, but hopefully > will arrive soon > > > > > > ` > > > > > > ___ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe,

Re: [time-nuts] Google public NTP service

2016-11-30 Thread Chris Albertson
-- > --- > Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 > g...@rellim.com Tel:+1 541 382 8588 > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listin

Re: [time-nuts] Best Chance GPS module

2016-11-30 Thread Chris Albertson
a micro board than a Rasp Pi with its > USB controlled Ethernet, or the BBB with it's RF issues? > *What am I not considering that could end up biting me? > > Thanks, > > Michael > > ___ > time-nuts mailing list -- time-nu

Re: [time-nuts] RPi/ beagle bone-like computer without video

2016-11-30 Thread Chris Albertson
al-time as well is some multitasking and even network. If you really need Linux and it needs to be small and low cost and low power, then look at the "Pi Zero". It is a very small Pi that sells for only $5. It has video but just don't plug in the

Re: [time-nuts] RPi/ beagle bone-like computer without video

2016-11-30 Thread Chris Albertson
rded in the most complicated way. > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > -- Chris Albertson Red

Re: [time-nuts] Audio format with embedded timestamps?

2016-12-01 Thread Chris Albertson
N3QE > ___ > 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] Best Chance GPS module

2016-12-01 Thread Chris Albertson
r some other data link back to the office. NTP can work just fine using IP over serial link. even at low baud rates. > > On 01/12/2016 1:51 AM, Chris Albertson wrote: > >> First question: How accurate does your local NTP server need to be? If >> the answer is "a

Re: [time-nuts] Audio format with embedded timestamps?

2016-12-01 Thread Chris Albertson
tape recorders. Use it the same way on digital > multitrack recordings. Google IRIG Time Code. > ___ > 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] Astronomical time scales (was: Google public NTP service)

2016-12-01 Thread Chris Albertson
.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] Best Chance GPS module

2016-12-01 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] Audio format with embedded timestamps?

2016-12-02 Thread Chris Albertson
you get explicit description of the audio > > sample location referenced to the PTP epoch. > > > > -- > > Chris Caudle > > > > > > ___ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscri

Re: [time-nuts] Best Chance GPS module

2016-12-04 Thread Chris Albertson
WAAS is about 1.5 meters I bet a 12 hour self survey is about 0.5 meters Are we still talking about NTP? If so this kind of stuff is lost in the noise and will never show up on your system clock. -- Chris Albertson Redondo Beach, California ___ time-

Re: [time-nuts] Switching regulator replacement for 7805

2016-12-04 Thread Chris Albertson
lot cooler than a 7805, though! > > John > > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > -- Chris Albertson Redondo

Re: [time-nuts] OT: ExpressPCB (cross-post from volts-nuts)

2016-12-09 Thread Chris Albertson
Lowest price I've found is BasicPCB.com They charge $3 per square inch for 2 layers with mask and legend. Minimum is three boards of 1 square inch. So you actually can place a $9 order with them. They are a USA based company. They accept standard Gerber files. This is very impotent as a few

Re: [time-nuts] OT: ExpressPCB (cross-post from volts-nuts)

2016-12-12 Thread Chris Albertson
Lowest price I've found is BasicPCB.com They charge $3 per square inch for 2 layers with mask and legend. Minimum is three boards of 1 square inch. So you actually can place a $9 order with them. They are a USA based company. They accept standard Gerber files. This is very imported as a few

Re: [time-nuts] 1PPS users?

2016-12-18 Thread Chris Albertson
ime-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] Alternative WWVB Spectracom solution

2013-06-14 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 to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

Re: [time-nuts] have 10MHz need 19.5Mhz

2013-06-15 Thread Chris Albertson
right, TI offer samples. On Sun, Jun 2, 2013 at 11:59 AM, Chris Albertson wrote: > > Recent talk about NTP servers. It seems the limit to their accuracy is > the quality of the crystal that drives the CPU clock. Most of them make > really good thermometers. I'd like to try and

Re: [time-nuts] WWVB remodulator for the spectracom 8170 the schematic is to large

2013-06-17 Thread Chris Albertson
fo/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] WWVB remodulator for the Spectracom 8170...

2013-06-17 Thread Chris Albertson
a sense you could say that Paul's circuit does get the WWVB signal to > the receiver - it's just a new phase stable version of the signal signal. > This way I don't have to mess with the insides of the 8170. > > Burt, K6OQK > > From: Chris Albertson >> >

Re: [time-nuts] WWVB remodulator for the Spectracom 8170...

2013-06-17 Thread Chris Albertson
llator to > the WWVB carrier, but presumably the PSK would work against you here. > > Best regards, > > Charles > > > > > __**_ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-

Re: [time-nuts] [OT} audiophile outlets.....

2013-06-19 Thread Chris Albertson
ers right. -- 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] tube GPS receivers

2013-06-23 Thread Chris Albertson
VG - www.avg.com > Version: 2012.0.2242 / Virus Database: 3199/5932 - Release Date: 06/22/13 > > > __**_ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** &

Re: [time-nuts] Measuring speed of light or reproducing a metre

2013-06-23 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. > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time

Re: [time-nuts] Measuring speed of light or reproducing a metre

2013-06-24 Thread Chris Albertson
For most school age kids, > the sources of time available are fairly lengthy (e.g. 1 second ticks from > wwv by phone, stopwatches built into iphones, etc.) > > Tape measures and meter sticks are readily available. > > > __**_ > time-nuts mailing list -

Re: [time-nuts] Measuring speed of light or reproducing a metre

2013-06-24 Thread Chris Albertson
On Mon, Jun 24, 2013 at 1:55 PM, Jim Lux wrote: > On 6/24/13 10:08 AM, Chris Albertson wrote: > >> >> Isn't that the Fizeau technique, which antedates Michelson's? > Michelson got the precision good enough that it finally put the question to rest. We used a mi

Re: [time-nuts] Measuring speed of light or reproducing a metre

2013-06-25 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<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > -- Chris Albertson Redondo Beach, California __

Re: [time-nuts] OT Prototype Boards

2013-06-25 Thread Chris Albertson
f they were in school befoe 1959 and did not keep up with this. -- 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] OT Prototype Boards

2013-06-25 Thread Chris Albertson
seller in China or Hong Kong or someplace, points East. > > Bob - AE6RV > ___ > 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 Albert

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