Re: [time-nuts] Setting clocks 100 years ago

Thanks to all for the very pleasant replies. Antonio I8IOV ___ 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] Fw: How to detect PLL lock

Surely its easier to measure the duty cycle of the 74AC86 by analog low pass filtering it and using an ADC to measure the output of the (buffered( analog low pass filter? Bruce Roberto Barrios wrote: Sorry, the links were obviously wrong: http://www.rbarrios.com/public/_MG_6553.jpg http://ww

[time-nuts] Fw: How to detect PLL lock

Sorry, the links were obviously wrong: http://www.rbarrios.com/public/_MG_6553.jpg http://www.rbarrios.com/public/_MG_6554.jpg http://www.rbarrios.com/public/_MG_6556.jpg http://www.rbarrios.com/public/_MG_6565.jpg http://www.rbarrios.com/public/_MG_6567.jpg Regards, Roberto EB4EQA From: Roberto

[time-nuts] How to detect PLL lock

Hello, I’ve built a James Miller style GPSD with a Rockwell Jupiter, 74AC86 as phase detector and Isotemp OCXO. Division from 10Mhz to 10kHz is done with a 12F675 PIC that also outputs other frequencies and I also included a 16F88 that gives information as OCXO oven info and various GPS status

Re: [time-nuts] Thunderbolt 10MHz

There is an EEPROM that can be used to store parameter such as the initial DAC voltage, position, etc. but it's not automatic. Have you explicitly saved the position (or auto stored it) after the survey is complete? If you don't do this then it will have to do a survey on every startup and that

Re: [time-nuts] TI 74LV4046 phase detector.

Gents, Wrote: < The 74LV4046 from Texas Instruments is far superior to any of the earlier variants. Great Info! Thanks. And a wonderful bonus is that it is available in PDIP 16 pin from Mouser for $1.66 each. It seems like almost everything better these days is SMT. Regards, Perrier

Re: [time-nuts] Setting clocks 100 years ago

> Other Timeballs that I know are Another for the list, some of you will have visited Edinburgh which has run a time gun and ball since the 1860s. I'll spare you the usual links, the foot of this link shows the time gun correction maps that the Edinburgh time nut of the 1860s would would

[time-nuts] Thunderbolt 10MHz

Gentlemen, A question on the Thunderbolt. Lately every time I turn the Thunderbolt off and then on again I have to do a cold reset. It then takes about 10-20 minutes before it is fully operational again. This is most unsatisfactory. Its almost as if its lost most of its settings. Is there so

Re: [time-nuts] 10 MHz phase detector: 4046 or separate XOR (74HCT1G86)?

On 11/06/2010 05:30 AM, Perry Sandeen wrote: Achim, Don’t re-invent the wheel. Google James Miller 10 MHz GPS. Very similar ckts are by Talbot and Bozic. The basic idea is to divide the 10 MHz to 10 KHz and then use a phase detector. All will work well. It comes down to personal choice.