Re: [time-nuts] New WWVB modulation format receivers (NOT)

2014-02-21 Thread Brooke Clarke
Hi Paul: The problem with GPS is you don't get the DST bits. For the OP that's OK, but if you want local time it isn't. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html paul swed wrote: Boy do I need to agree with Chris's comments above

Re: [time-nuts] 3.0GHz Channel 3 installation in Agilent 53132A Counter

2014-03-19 Thread Brooke Clarke
Hi Jim: I've seen a similar problem when one end of a ribbon cable connector is soldered to the wrong side of a PCB. Maybe you can unsolder a connector and install it on the other side? Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html James

Re: [time-nuts] Aircraft ping timing

2014-03-19 Thread Brooke Clarke
for everyone. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html iov...@inwind.it wrote: Messaggio originale Da: j...@quikus.com Data: 20/03/2014 1.47 It depends on how accurately the bird can measure the round-trip time: 1 us = ca 500' 10 us

Re: [time-nuts] Aircraft ping timing

2014-03-22 Thread Brooke Clarke
not be opened from the outside) wanted to commit suicide in such a way that it could not be proved that's what happened so his family would get the insurance. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Brian Lloyd wrote: On Fri, Mar 21, 2014 at 11

Re: [time-nuts] Airraft Ping Timing

2014-03-25 Thread Brooke Clarke
Hi Joe: It's my understanding that the spot beams are only used for air phones where they need more gain and MH370 had no first class, i.e. no phones. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Joe Leikhim wrote: One thing I don't fully

Re: [time-nuts] new GPSDO kit

2014-04-04 Thread Brooke Clarke
Hi Said: Can you say more about what this means? It generates a low-noise 10MHz signal with typically better than 1E-010 precision and accuracy (0.1ppb) on average Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html saidj...@aol.com wrote: Hello

[time-nuts] GPSDO Crystal Aging

2014-04-10 Thread Brooke Clarke
the control voltage to the last used value it would be much better to add a linear ramp. http://www.rt66.com/%7Eshera/ -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html ___ time-nuts mailing list -- time

Re: [time-nuts] GPSDO Crystal Aging

2014-04-10 Thread Brooke Clarke
Hi Tom: That makes sense because the GPS was just coming on line and not anywhere near a full compliment of satellites and SA was on. HP had some way around SA that improved the timekeeping. Has that ever been disclosed? Have Fun, Brooke Clarke http://www.PRC68.com http

Re: [time-nuts] Measuring the accurcy of a wrist watch

2014-04-17 Thread Brooke Clarke
for a very low noise floor. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html ___ 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] Phase noise and geomagnetism

2014-04-28 Thread Brooke Clarke
magnetic filed would not make much difference. http://www.prc68.com/I/Sensors.shtml#Magnetic Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html iov...@inwind.it wrote: As our geomagnetic field gets quite noisy during geomagnetic storms (which

Re: [time-nuts] Datum 4065A Cs Tube Response

2014-05-05 Thread Brooke Clarke
Hi Ed: Some links to the related patents are on my 4060 4065 web page: http://www.prc68.com/I/FTS4060.shtml#Pat Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Magnus Danielson wrote: Ed, On 05/05/2014 10:56 PM, Ed Palmer wrote: Hi Joe, I

[time-nuts] HISTORIC MARINE CHRONOMETER THAT ACCOMPANIED CHARLES DARWIN ON THE SECOND VOYAGE OF HMS BEAGLE

2014-05-06 Thread Brooke Clarke
Hi: A Marine Chronometer with a history. http://www.bonhams.com/press_release/16459/ Click on white (hard to see) arrows for more photos. Fine Clocks: 9 Jul 2014 http://www.bonhams.com/auctions/21930/ -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com

[time-nuts] The Problem with Time Timezones - Computerphile

2014-05-08 Thread Brooke Clarke
Hi: A video that explains the difficulty in writing code that includes timezones:) https://www.youtube.com/watch?v=-5wpm-gesOY -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html ___ time-nuts mailing

Re: [time-nuts] Fwd: CGSIC: Known Problem With Certain GPS Devices

2014-05-16 Thread Brooke Clarke
and a Fugro 3000 Receiver for the OmniSTAR correction subscription service which costs $800/year. I've asked Trimble (who are doing the tech support for Ashtech) if there's a firmware upgrade. http://www.prc68.com/I/LGBXcsiDGPS.html Have Fun, Brooke Clarke http://www.PRC68.com http

[time-nuts] 2014 Million £ Longitude Prize

2014-05-20 Thread Brooke Clarke
Hi: The UK in recognition of the 300th anniversity of the first Longitude Prize is now working on another one. http://www.longitudeprize.org/ A million pounds is about 16.8 million dollars. -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html

Re: [time-nuts] 2014 10 Million £ Longitude Prize

2014-05-20 Thread Brooke Clarke
Hi: Sorry, it's old age. The US $ amount 16.8 million was correct, the mistake was in the Sterling amount which should have been 10 Million £. I've corrected the subject line. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Brooke Clarke wrote

[time-nuts] [WOT] 2014 Million £ Longitude Prize

2014-05-21 Thread Brooke Clarke
the same effect on your waistline and liver. This diet has killed an uncountable number of people. For more see: http://www.prc68.com/I/DietNutrition.html To keep Tom happy please reply off list. bro...@pacific.net Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com

Re: [time-nuts] HP E3610A Power supply

2014-05-22 Thread Brooke Clarke
Hi Bert: My E3617A has a front panel adjustment screw for Over Voltage Protection. Does the E3610 have that? http://www.prc68.com/I/Capacitors.shtml#SupCMeas Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html ewkeh...@aol.com wrote: This may

Re: [time-nuts] Weather/units question for European members

2014-05-24 Thread Brooke Clarke
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

Re: [time-nuts] Toy radiolocation and LORAN envelope

2014-05-27 Thread Brooke Clarke
–Harrington limit: http://en.wikipedia.org/wiki/Chu%E2%80%93Harrington_limit At 100 kHz a wavelength is 3,000 meters. So the waveform needs to have minimal bandwidth. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I

[time-nuts] New tide gauge uses GPS signals to measure sea level change

2014-05-27 Thread Brooke Clarke
=rssutm_campaign=Subscriptionutm_content=pressrelease -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go

Re: [time-nuts] Toy radiolocation and LORAN envelope

2014-05-27 Thread Brooke Clarke
Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Chris Albertson wrote: You don't need much power because the device in the toy only needs to transmit for a few milliseconds then shut off. Some transmuter

[time-nuts] New NIST Time Code to Boost Reception for Radio-Controlled Clocks

2014-05-31 Thread Brooke Clarke
. -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo

Re: [time-nuts] VNA design

2014-06-02 Thread Brooke Clarke
and the newest systems use frequency synthesizers with good reference oscillators (Time Nuts content). Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html ___ time-nuts

Re: [time-nuts] Sad news Ulrich Bangert

2014-06-20 Thread Brooke Clarke
is responsible for the premature deaths of millions of people. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Hartmut Paesler wrote: Dear group, unfortunately I have to deliver the sad news that Ulrich Bangert

Re: [time-nuts] 58503A date code problem

2014-06-21 Thread Brooke Clarke
Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Tom Van Baak wrote: Hi Daniel, What you have is a 58503A, the GPS time/frequency receiver (the 58530A is a GPS bandpass filter). Note that today is MJD 56829

Re: [time-nuts] Magnetic Resonance Spectrometer - redux

2014-07-05 Thread Brooke Clarke
standard that can be used to drive a line powered wall clock. The Magnatron magnets were probably Alinco, so if you upgraded to modern magnets it might be much more stable. http://en.wikipedia.org/wiki/Proton_magnetometer http://en.wikipedia.org/wiki/NMR Have Fun, Brooke Clarke http://www.PRC68.com

Re: [time-nuts] temperature sensor

2014-07-21 Thread Brooke Clarke
coefficients are not given. Once you know the equation applies it's not too difficult to make some measurements and derive the coefficients. -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html

Re: [time-nuts] temperature sensor

2014-07-21 Thread Brooke Clarke
it for freshly cut roses. Of course you need to let the water cool before putting them into it. Removing the trapped oxygen makes them last longer. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Alan Melia wrote

[time-nuts] Time in Phone System

2014-07-21 Thread Brooke Clarke
details on the data format/protocol? -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] OT Gel Cell question

2014-07-27 Thread Brooke Clarke
. For more info see Burp Charging: http://www.prc68.com/I/BatChg.shtml#Burp Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Robert Roehrig wrote: Anyone know why Gel Cell batteries go HI-Z if discharged below

Re: [time-nuts] OT Gel Cell question

2014-07-28 Thread Brooke Clarke
, circuitry for the oscillator and dual temperature control circuits on ring shaped boards. These fit inside a cylindrical cavity which is the outer oven. I've added a photo of the inner assembly at: http://prc68.com/I/office_equip.html Have Fun, Brooke Clarke http://www.PRC68.com http

Re: [time-nuts] OT Gel Cell question

2014-07-28 Thread Brooke Clarke
and supply a lower voltage to run the unit. The key problem was the short distance between the batteries and the hot oven. Maybe the oven was also heating the batteries. Something to keep in mind today. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html

Re: [time-nuts] OT Gel Cell question

2014-07-28 Thread Brooke Clarke
Sonic label is a quality battery even if it does have a Made in China sticker. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Charles Steinmetz wrote: Paul wrote: Stay away from hamfest/flea market

[time-nuts] Mathematics: Measuring x laziness² (Earthlings 101, Episode 13)

2014-07-28 Thread Brooke Clarke
://www.youtube.com/watch?v=XFtmkILu6xglist=PL32F8B5F41870D160 -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] Fwd: CGSIC: FW: The next GPS Launch

2014-07-29 Thread Brooke Clarke
Hi John: And the manufacturer gets an annual bonus. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html John Allen wrote: Hi Magnus et al - just FYI: 2 1/2 times the design lifetime is not unusual

Re: [time-nuts] WWVB BPSK patent status

2014-08-08 Thread Brooke Clarke
Hi Mike: Do you have any patent numbers. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Mike Harpe wrote: From my reading of the archives and research it appears that the design for a BPSK WWVB

[time-nuts] WWVB for Time Nuts

2014-08-09 Thread Brooke Clarke
with a clock that has a equivalent accuracy to get a position fix within some distance. [OT] PPPS I'm also having fun looking at the pond water in my back yard. http://www.prc68.com/I/Labophot.html#Pond_Water -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com

Re: [time-nuts] WWVB for Time Nuts

2014-08-09 Thread Brooke Clarke
is over 100 dB, they get that by using a capacitive voltage divider in front of the LNA which has a 1.5 dB NF to start and when the attenuator is adding loss they don't care about the NF. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68

Re: [time-nuts] WWVB for Time Nuts

2014-08-09 Thread Brooke Clarke
, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Jim Lux wrote: On 8/9/14, 12:56 PM, Bob Camp wrote: Hi Keep in mind that the patent(s) do not keep you from building a part for your own use. AS I understand

Re: [time-nuts] VLF Phase-tracking receivers.

2014-08-09 Thread Brooke Clarke
Hi Paul: Are the phase tracking receivers able to receive any VLF stations (like used by the military)? Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html paul swed wrote: Ken All of the phase tracking

Re: [time-nuts] PRS10 Lamp module needed

2014-08-12 Thread Brooke Clarke
Hi Vasco: Have you asked http://www.thinksrs.com/ Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Vasco Soares wrote: Hi, I need a new rubidium lamp module for the PRS10 unit. Does anyone have a spare

Re: [time-nuts] time-nuts Digest, Vol 121, Issue 65

2014-08-24 Thread Brooke Clarke
Hi Bob: I think that's what's done in the SRS PRS10 http://www.prc68.com/I/PRS10.shtml Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Bob Camp wrote: Hi If you lock an Rb to GPS, you need / want

Re: [time-nuts] Thunderbolt Rollover

2014-09-17 Thread Brooke Clarke
STR2760? http://www.prc68.com/I/NTgpsSTR2760.shtml Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Matthias Jelen wrote: Hello, I got a Trimble Thunderbolt a few months ago and implemented a simple monitor

Re: [time-nuts] capacitors for oven controller

2014-09-22 Thread Brooke Clarke
Hi Corby: The Gibbs frequency standard used glass caps in the RF circuit for the oscillator. They were inside the central oven near the crystal. http://prc68.com/I/office_equip.html Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http

Re: [time-nuts] WWVB d-psk-r down conversion method...

2014-09-23 Thread Brooke Clarke
for a clock to sync after a battery change) and more accuracy. http://prc68.com/I/Loop.shtml#PhaseMod Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Alexander Pummer wrote: there is an interesting side effect

Re: [time-nuts] WWVB d-psk-r down conversion method...

2014-09-23 Thread Brooke Clarke
on frequency, then decoding a signal that's 17 minutes long is a big problem. For time nuts use where we have a precision LO all that goes away and instead we could be looking at how to get more precision and at the same time more updates. Have Fun, Brooke Clarke http://www.PRC68.com http

Re: [time-nuts] WTB: GPS Antenna Splitter

2014-10-06 Thread Brooke Clarke
Hi: This works great and has minimal cost. http://www.prc68.com/I/4GPS.shtml Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html John C. Westmoreland, P.E. wrote: Dave, Can you please let us know what you

Re: [time-nuts] Sun Outage

2014-10-09 Thread Brooke Clarke
satellite time only mode of operation and even they it would be a science experiment to detect the effect of the Sun. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Bob Stewart wrote: Two days this week

Re: [time-nuts] Sun Outage

2014-10-09 Thread Brooke Clarke
Hi Dave: The small size of the Ku-band TV dish and that it's surface is covered with a flat type paint means there's little or no thermal heating of the receiver or feed. There were cases with the early C-band TVRO systems where they did melt the receiver. Have Fun, Brooke Clarke http

Re: [time-nuts] Sun Outage

2014-10-09 Thread Brooke Clarke
Hi Graham: Do you know if anyone has used a Ku-band receiver, like described in the paper, to look at Jupiter? The Radio Jove project is looking between 18 and 40 MHz. http://radiojove.gsfc.nasa.gov/ Have Fun, Brooke Clarke, N6GCE http://www.PRC68.com http://www.end2partygovernment.com

Re: [time-nuts] Sun Outage

2014-10-09 Thread Brooke Clarke
, Brooke Clarke, N6GCE http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Don Murray via time-nuts wrote: Hello all... Not all satellite TV antennas are parabolic. A typical C-Band antenna is parabolic and aligned for one

Re: [time-nuts] HP E1938A questions/remarks.

2014-10-13 Thread Brooke Clarke
Hi Rob: There's some information at: http://www.prc68.com/I/HPE1938.shtml Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Rob040 . wrote: Dear all, This is my first post, so a small introduction

[time-nuts] PayWall Papers

2014-10-23 Thread Brooke Clarke
Hi: The last few times I've run up against a for pay paper, I've written to the lead author (typically that email is on the pay wall page or is easy to find) and have requested a copy of the paper for my personal use. And so far I'm 3 for 3. Have Fun, Brooke Clarke http://www.PRC68.com http

[time-nuts] HOW WE GOT TO NOW WITH STEVEN JOHNSON | Time An Inside Look | PBS

2014-10-25 Thread Brooke Clarke
Hi: I don't have TV and wonder if anyone who has PBS can comment on this program? preview at: https://www.youtube.com/watch?v=RhDvGhFbpq8 -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html

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

2014-10-26 Thread Brooke Clarke
the circuit that was inside the oven. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Jim Lux wrote: There are a variety of inexpensive wall-wart packaged float chargers for lead acid batteries around. Might

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

2014-10-26 Thread Brooke Clarke
/TandFTE.shtml#SR620 Mail_Attachment -- Have Fun, Brooke Clarke, N6GCE http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Karen Tadevosyan wrote: Hello All, Can I have your recommendation regarding a choice of 10 MHz rubidium source

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

2014-10-26 Thread Brooke Clarke
mounting them in an empty rack and laying on your back like working under a car. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Magnus Danielson wrote: Brooke, One use for the R

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

2014-10-27 Thread Brooke Clarke
and I suspect these same options could be used when ordering the PRS-10. Maybe Tom has data on some of the SC-10 oscillators? Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Charles Steinmetz

Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

2014-10-31 Thread Brooke Clarke
Hi Bob: When HP came out with the 300 series Rocky Mountain Basic computers they were fitted with a super cap to power the RTC. I will keep time for some months. http://www.prc68.com/I/HPIB.shtml#300 Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http

Re: [time-nuts] Mercury Ion Clock

2014-10-31 Thread Brooke Clarke
Hi Bob: I suspect that inside a screen room like that one, where I'm guessing the walls are iron/steel, there's not much of the Earth's mag field left to null. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68

Re: [time-nuts] 1903 Railroad self-Winding / Self-setting Clock

2014-11-01 Thread Brooke Clarke
in the pulse. PS the synchronizer by Ken's clocks uses a 4.5 V supply and is too weak to work on my clocks. PPS adding the series resistor is also needed in teletype circuits and for the same reason, to get faster action. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http

Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

2014-11-01 Thread Brooke Clarke
chips alive may not power anything needing more than a microamp. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Bob Camp wrote: Hi I sort of doubt that a GPS aux supply is quite

Re: [time-nuts] 1903 Railroad self-Winding / Self-setting Clock

2014-11-01 Thread Brooke Clarke
Hi Hal: The click-click-click... is the self winding. A solenoid vibrates back and forth and a pawl and ratchet winds the main spring. https://www.youtube.com/watch?v=QIxOVo_0xgofeature=youtu.be Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http

Re: [time-nuts] Setting Clocks in the Mid 1800's

2014-11-01 Thread Brooke Clarke
Hi Larry: Yes, please. Here's my Dent Dipleidoscope: http://www.prc68.com/I/Dent.shtml Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Sanjeev Gupta wrote: On Sat, Nov 1, 2014 at 11:23

Re: [time-nuts] Selling time to the railroad

2014-11-01 Thread Brooke Clarke
be one of the ticks from the sidereal clock. So providing the noon or hourly time ticks is a different activity. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Howard Davidson wrote

Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

2014-11-01 Thread Brooke Clarke
of greatly reducing start-up time. In this case the purpose of the super cap is to prevent memory loss because of a power glitch not for long term power failure. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com

Re: [time-nuts] 1903 Self-setting / self-winding clock

2014-11-01 Thread Brooke Clarke
enough. http://www.prc68.com/I/SWCC2.shtml Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Mike Baker wrote: Time-Nutters-- This particular 1903 Railroad self-setting/winding pendulum

Re: [time-nuts] 1903 Railroad self-Winding / Self-setting Clock

2014-11-01 Thread Brooke Clarke
-- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Hal Murray wrote: bro...@pacific.net said: The click-click-click... is the self winding. A solenoid vibrates back and forth and a pawl and ratchet winds

Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

2014-11-04 Thread Brooke Clarke
I receive the Ref-0 and Ref-1 boxes and cable I'll start filling in my web page: http://www.prc68.com/I/KS-24361.html Mail_Attachment -- Have Fun, Brooke Clarke. N6GCE http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Stewart Cobb

Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system

2014-11-04 Thread Brooke Clarke
Hi Hal: Yes for level shifting. Most micro controllers have the UART built-in so that's all that's needed. I haven't got my boxes so don't know what chips are in them. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http

Re: [time-nuts] Divide by five

2014-11-07 Thread Brooke Clarke
is to make a ring counter out of transistors. http://www.prc68.com/I/comp.shtml#Lamp The beauty is that each transistor is toggling at 2/N of the clock frequency. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I

Re: [time-nuts] Electrolytic Capacitor Question

2014-11-10 Thread Brooke Clarke
.shtml#Rx and scroll down for more boards. Notice that sometimes the ESR is high and other times the capacitance is low for the bad caps. The tantalum caps were OK, but almost all the electrolytic caps were bad. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http

Re: [time-nuts] Division Circuit

2014-11-14 Thread Brooke Clarke
the 723 F-F from Fairchild. http://www.prc68.com/I/comp.shtml#Lamp Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Tim Shoppa wrote: Yes! I did find a patent that illustrated the exact

Re: [time-nuts] strange carrier

2014-11-14 Thread Brooke Clarke
Hi Doug: Can you power your WWVB receiver from batteries and shut down your house AC? That way it's not something inside your house. http://www.prc68.com/I/Loop.shtml Mail_Attachment -- Have Fun, Brooke Clarke, N6GCE http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http

Re: [time-nuts] strange carrier

2014-11-15 Thread Brooke Clarke
fraction of a wavelength. http://www.prc68.com/I/FTA.shtml#DISEqC Mail_Attachment -- Have Fun, Brooke Clarke, N6GCE http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html ed breya wrote: A signal like that coming from a dish makes some

Re: [time-nuts] Si570 question

2014-11-18 Thread Brooke Clarke
Hi Jim: A number of hams have built VFOs using this chip, for example here's some data: http://www.cliftonlaboratories.com/si570_kit_from_k5bcq.htm#Frequency_Spectrum Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http

Re: [time-nuts] 10811

2014-11-18 Thread Brooke Clarke
). http://www.prc68.com/I/Aertech.shtml#TDA The boards with the terminals have the Zener and a custom compensation network using both Veco (spelling?) (-TC) and Balco (+TC) and fixed resistors so that the gain stays constant over mil temperature ranges. Mail_Attachment -- Have Fun, Brooke Clarke

[time-nuts] Lucent KS-24361 Web Page

2014-11-18 Thread Brooke Clarke
.html Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com

Re: [time-nuts] GPS in the news

2014-11-18 Thread Brooke Clarke
Hi Magnus: Maybe it's moot. If a hunk of dark matter that's 0.75 of Earth's radius is inside the GPS orbit there's likely to be bigger issues. Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I

Re: [time-nuts] SR620 - any gotchas buying a used one?

2014-11-21 Thread Brooke Clarke
Mail_Attachment -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Dr. David Kirkby (Kirkby Microwave Ltd) wrote: After regrettably selling my 5370B a few years ago, I decided to look for a used SR620

Re: [time-nuts] Practical considerations making a lab standard with an LTE lite

2014-11-23 Thread Brooke Clarke
, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html Jim Lux wrote: On 11/23/14, 11:15 AM, Alex Pummer wrote: by us in central California, we get 1kW/h square meter average around the year, the south even more, el Cajon

Re: [time-nuts] HP 115BR Clock Repaired and Ready to go

2012-10-16 Thread Brooke Clarke
Hi: I'd characterize the noise as obnoxious to the point I could not have my 113AR in the house, but only the garage. http://www.prc68.com/I/TF_rack.html Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Chuck Harris wrote: I found that a lot

Re: [time-nuts] WWVB New Modulation five cent demodulator / carrier regenerator ?

2012-10-21 Thread Brooke Clarke
Hi Dale: Is it as simple as changing the clock to operate at 60 kHz? Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Dale J. Robertson wrote: While looking for other stuff I came across the data sheet for the NXP Semi SAA6579. The chip

Re: [time-nuts] Pictures of inside of a 5061A Cesium tube ?

2012-12-07 Thread Brooke Clarke
Hi Pete: Try Google Images. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Pete Lancashire wrote: Has anyone posted pictures of what a dissembled 5061A tube looks like ? Just curious -pete

Re: [time-nuts] Noisy varactor diodes

2012-12-18 Thread Brooke Clarke
Hi Corby: Did you measure the reverse leakage current on the good and noisy diodes? Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html cdel...@juno.com wrote: I was recently repairing a noisy A3 module for an HP 5065A. The phase modulator has 4

[time-nuts] GPS Clock with Four Letter Words

2012-12-26 Thread Brooke Clarke
Hi: Here's one of my GPS controlled clocks that also displays random four letter words. http://www.prc68.com/I/timefreq.shtml#FLW When people visit it's almost hypnotic. -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html

Re: [time-nuts] Locked onto LORAN 8970 GRI Monday AM

2013-02-05 Thread Brooke Clarke
Hi: Here's a table of US stations back when they were operational with links to Google images of the sites. http://www.prc68.com/I/Loran-c.shtml Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html

Re: [time-nuts] HP53132A vs SR625

2013-02-07 Thread Brooke Clarke
base in one of them serves little purpose. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Hui Zhang wrote: Dear Group: I am intend to buy a second-hand counter, I have not decided yet between SR625 and HP53132A, they have very close price

Re: [time-nuts] Generation of pulse train with 1/4 noise

2013-02-15 Thread Brooke Clarke
Hi Jim: Music synthesizers now use sounds recorded from real instruments and play them back. Why not record a real heart beat, maybe different ones from children, men, women, etc.? Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Jim Lux wrote

Re: [time-nuts] BBC Bush House Patek Phillipe clock system on ebay

2013-02-19 Thread Brooke Clarke
Hi Peter: He's also got a larger system at item No. 140912029500 that needs some work, see the video at the bottom of each auction. http://www.youtube.com/watch?feature=player_embeddedv=Vnqy99Kowcs http://www.youtube.com/watch?v=siLG4fjSg3slist=UUzyU78k95mbYA-hZQZCMYIQ Have Fun, Brooke

Re: [time-nuts] Need info on Trimble 4000S GPS Surveyor

2013-03-11 Thread Brooke Clarke
Hi Ed: I have a little info at: http://www.prc68.com/I/Trimpack.shtml#4000 Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Ed Breya wrote: I recently acquired a junker Trimble 4000S GPS surveying unit. It's mid-1980s technology, so very big

[time-nuts] Russian Timing Geosync Sats?

2013-03-12 Thread Brooke Clarke
Hi: I've heard that there's a Russian satellite system that uses 150 400 MHz signals for timing based on Geosynchronous satellites. Maybe called Tsikada. Does anyone know about it? -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html

Re: [time-nuts] Russian Timing Geosync Sats?

2013-03-13 Thread Brooke Clarke
, but so far have not been able to confirm that. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Peter Bell wrote: Tsikada was (maybe still is?) the Russian version of TRANSIT - it used 150MHz and 400MHz carriers, but I'm pretty sure the orbits

[time-nuts] AT86RF233 Ranging?

2013-03-15 Thread Brooke Clarke
stepping the frequency so maybe is sort of like FM Doppler ranging. The example readout is showing 1 cm resolution on a 30 meter range. There's no info in the AT86RF233 data sheet, but there is some in app notes: AVR2150, AVR2151 AVR2152. -- Have Fun, Brooke Clarke http://www.PRC68.com http

Re: [time-nuts] Time shown as two horizontal bars

2013-04-02 Thread Brooke Clarke
://www.prc68.com/I/timefreq.shtml#FLW When you see for underlines the characters displayed are HH:MM. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html ___ time-nuts mailing list -- time-nuts@febo.com

Re: [time-nuts] Trimble SVeeSix -- was DATUM 9390-52054 Grief again...

2013-04-07 Thread Brooke Clarke
Hi: I spent a lot of time with the SV6 learning about GPS. http://www.prc68.com/I/Trimpack.shtml#SV6 Note: The Trimpack web page has a bunch of Trimble GPS receivers, not just Trimpacks. Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html

Re: [time-nuts] GPS antenna??

2013-04-09 Thread Brooke Clarke
Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html ___ 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] Connectors

2013-04-11 Thread Brooke Clarke
second timing) this works very well, but if you're into pico second timing then it's a whole other ball game. Have Fun, Brooke Clarke, N6GCE http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html steve gunsel wrote: Hi, Not too long ago there was an interesting discussion here

Re: [time-nuts] Connectors

2013-04-12 Thread Brooke Clarke
to mating them is a great way to water proof the joint. See Weatherproofing at http://www.prc68.com/I/OE254.shtml Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html brent evers wrote: BTW - 3M Scotch rubber tape is regularly used in the offshore

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