Re: [time-nuts] Rack needed in SF Bay Area

2017-06-03 Thread Lincoln
There is also Halted off of central expressway > On Jun 3, 2017, at 8:32 PM, Jerry Hancock wrote: > > Anyone in the SF bay area have a rack that is surplus to your needs? > > Please reply to cl...@hanler.com > > thanks > > Jerry >

Re: [time-nuts] The future of Telecom Frequency Standard surplus

2017-06-01 Thread Lincoln
> On May 31, 2017, at 7:07 PM, Bob kb8tq wrote: > > Many systems are indeed going to much tighter holdover numbers. That is > requiring either a much better OCXO or an Rb as a holdover So sync limits are going down. 4G-TDD has a node to node limit of 3µs / node to UTC of

Re: [time-nuts] Bay Area Maker Faire '17

2017-05-19 Thread Lincoln
I will be going, likely tomorrow… > On May 12, 2017, at 7:46 AM, Nick Sayer via time-nuts > wrote: > > Anybody else going to Bay Area Maker Faire next weekend? I’ll have a booth > there (heavy on clocks and GPS) and would love to meet anyone going. >

Re: [time-nuts] Machining some aluminum help!

2017-05-19 Thread Lincoln
> > There are a lot of variables involved. Run the screws in and out of the > aluminum a number of times and > the holes will fail first ….There are other gotchas as well. > > Bob > This is where helicoils come in to play. They are used a lot on the CVD furnaces that I used to make parts

Re: [time-nuts] Machining some aluminum help!

2017-05-18 Thread Lincoln
I agree, tapping that depth in aluminum is just asking to gall the threads. If you have a decent alloy (6061 7075) you only need 1/8” to hold what ever is save to hold with a #4. If you need more strength then it would be best to use helicoil inserts. Where are you located? There are a number

[time-nuts] M12+t breakout board, ITU G.8271

2017-05-16 Thread Lincoln
the protocal conversion as well as provide a USB management interface. Is there any interest form the group? Thank you Lincoln ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

[time-nuts] SR620: odd measurements when in remote control

2016-12-21 Thread lincoln
Hello, I have an SR620 that i am trying to get some more life out of. I have dedicated a raspberry pi 2 to recode data and make the files available through the network. I wrote a small c deamond that will setup the counter to make frequency measurements and save the result to a file

Re: [time-nuts] Holdover

2016-08-19 Thread lincoln
Hello Bob, At work we make internet clock that are governed by a number of ITU and IEEE standards. As others have stated correctly, there is no standard. There are a number of behaviors that can be configured depending on application. 1. Always a PPS out, TOD string carries a

Re: [time-nuts] PTP Grandmaster Clock using Macro Sniffing

2016-03-24 Thread lincoln
Hello, First full disclosure, I work for a PTP vendor. A master is not that difficult. The protocol is well defined and there are a few open source stacks available. More and more PHYs have time stamping built in though each manufacturer has their own method for getting time stamps out of

[time-nuts] hp 5061b replacement tube

2015-06-13 Thread lincoln
Hello, I'm guessing I all ready know the answer to this but: A friend gave me a hp 5061b but in need a tube. Symmetricom was listing the price of a replacement at 35k before the go bought out by Microsemi. Given Microsemi has a tendency to rebrand equipment and then charge 4x the price,

Re: [time-nuts] Using CPLD/FPGA or similar for frequency

2015-06-13 Thread lincoln
Hello It also depends on which device primitives you can use. Xilinx spartan series has an SRL16, 16 bit shift register that can be ganged to form dividers / pre scalers. It only takes up one lut or slice, I forget which. Link On Jun 11, 2015, at 4:11 AM, Bob Camp kb...@n1k.org wrote: Hi

Re: [time-nuts] Small time server for mobile use.

2015-05-14 Thread lincoln
Might look at this: http://qulsar.com/Products/Managed_Timing_Engines/MTE_Board_P6X.html It has PTP, sNTP, comes with a TCXO, OCXO as an option or bring your own oscillator through the 40 pin connector. Link On May 12, 2015, at 10:11 AM, Mark Spencer m...@alignedsolutions.com wrote: Hi

Re: [time-nuts] TimeLab + sr620

2015-05-05 Thread lincoln
in to show detail but the y scale will go form +1.00E0 to +1.00E0 . I'm sure its a setting. Thank you On May 4, 2015, at 10:40 PM, Magnus Danielson mag...@rubidium.dyndns.org wrote: Lincoln, Did you configure the coulder to use RS232 rather than GPIB? It's in the manual. Cheers, Magnus

[time-nuts] TimeLab + sr620

2015-05-04 Thread lincoln
a measurement in TimeLab If I hit the monitor button I don't see any activity. If I start the measurement, Time lab never gets past trying to establish communication with the counter. I'm sure its my fault. Any thoughs? thanks Lincoln ___ time-nuts mailing

[time-nuts] WSTS

2015-03-11 Thread lincoln
Hello, Is anyone going to WSTS? Link ___ 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] Can one update firmware of Stanford Research Systems SR620 time interval counter?

2015-01-19 Thread lincoln
Hello Dave, That is the same firmware version as mine, I cant tell you if that is the most current. Link On Jan 2, 2015, at 12:50 PM, Dr. David Kirkby (Kirkby Microwave Ltd) drkir...@kirkbymicrowave.co.uk wrote: I'm just in the process of trying to look at writing some GPIB

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

2014-12-09 Thread lincoln
? What would be the best way to scale up by X 2? lowish phase noise / jitter is important, low power is not. Thank you, Lincoln ___ 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] FYI: Galileo satellite recovered and transmitting navigation signals

2014-12-05 Thread lincoln
Hello, One vendor we starts nimea strings with BD and GN instead of GP ie $GPGGA,blab, blab becomes $BDGGA,blab and $GNGGA,blab If all systems are selected and the receiver has enough of each system you can have up to three $*GGA messages per update. Link On Dec 5, 2014, at 3:32 PM,