Re: [time-nuts] Low CostTemperature sensor

That article has a major error. Anyone know what it is? - Original Message - From: "Jason Ball" To: "Discussion of precise time and frequency measurement" Cc: "Perry Sandeen" Sent: Tuesday, January 17, 2017 1:11 AM Subject:

Re: [time-nuts] Low CostTemperature sensor

Even cheaper... Diiode as a cheap sensor ? https://www.arrow.com/en/research-and-events/articles/using-a-simple-diode-as-a-ballpark-temperature-sensor On Tue, Jan 17, 2017 at 4:16 PM, Bill Hawkins wrote: > Perrier, > > Google finds a Siemens NI1000 sensor that follows the

Re: [time-nuts] Looking for GPS module (Exactime ET6000/Datum 9390-6000)

Due to the stickers, I don’t see anything with MX on it, but I presume you mean the ROM. It has 28655-01 and V5.00 on it. The other model number is 26889-81, the -x1 kind of implies that it’s TSIP, and from sniffing the GPS traffic in a prior exercise, I can confirm that it is. > On Jan 16,

Re: [time-nuts] Low CostTemperature sensor

Perrier, Google finds a Siemens NI1000 sensor that follows the nickel curve. Nickel is popular in industrial control for cost, but not as accurate as platinum. Converting the platinum curve to accurate temperatures requires a second order equation, but has been done with 0.1% analog converters.

[time-nuts] TICC update?

I see that my credit card has been charged. Is that a hint that the TICC project is moving along? Should I start gathering up cables and SMA adapters? -- newell N5TNL ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

[time-nuts] Who has a hm H Maser?

 List, The discussion about building a H Maser has been fascinating however it appears that there will be a long time period before the project reaches fruition. My questions for those that have a H Maser are: Where and when did you get it and what was the cost? Exactly what do you have to do

[time-nuts] Low CostTemperature sensor

List, A while back there was much discussion about temperature sensors. One simple inexpensive one to consider would be the ZNI1000Temperature sensor. It's 1K ohms at 0C and it replicates the temperature curve of the Pt 1K ohm sensors. It's about $3 from Digi-Key.  FWIW YMMY Regards, Perrier

[time-nuts] How to create a super Rb standard

List It looks like their is as infinitely small chance of being able to get 5065. So what can be done with the telco Rb's (mine are analog tuned) to wring the best possible performance from them? Sooper Duper power supplies, Peltier (sp) cooling modules? Regards, Perrier

[time-nuts] Looking for GPS module (Exactime ET6000/Datum 9390-6000)

On the chip with the "MX" marking on it, what f/w version does it show (usually v5.02 or v5.10)? I have a couple of CM3's configured for TAIP output, but I have the programs for switching them to TSIP or NMEA. --- > The module is basically a Trimble SveeSix-CM3 and is

Re: [time-nuts] Fluke/Pendulum Counters - Rubidium Timebase

Ed, On 01/16/2017 11:01 PM, Ed Palmer wrote: I have a Fluke PM6681 counter that just has the basic oscillator. I was thinking of upgrading it to the Rubidium timebase. From the service manual, it appears to use an LPRO, but there's nothing obvious regarding heat sinking. Does anyone have

[time-nuts] Fluke/Pendulum Counters - Rubidium Timebase

I have a Fluke PM6681 counter that just has the basic oscillator. I was thinking of upgrading it to the Rubidium timebase. From the service manual, it appears to use an LPRO, but there's nothing obvious regarding heat sinking. Does anyone have pictures of this installation or, at least,

Re: [time-nuts] HP 5061A/B Cesium tube conundrum

Corby thats a heck of a puzzle. I am trying to think about how you could prove it. I have some thoughts that are not at all well formed. It comes from my experiments on Frankenstein temp control. If you could please tell me what you might expect the alternate bridge resistors to be overall I will

[time-nuts] HP 5061A/B Cesium tube conundrum

I've been doing some work on testing some HP 5061A/B tubes and came across something that's not making any sense! The R11 and R12 values marked on the tubes for use with the new style A11 are supposed to reflect a parallel value that is 10X larger than the thermistor reading. This to agree with

[time-nuts] Looking for GPS module (Exactime ET6000/Datum 9390-6000

I recently added code to Lady Heather to support up to 10 external com links (serial or TCPI/IP). One is the receiver port, one will be a TICC, and two are "echo" ports. One echo port echoes all the raw data sent by the receiver and the other does the same thing except the data is formatted

Re: [time-nuts] wifi with time sync

Sonos and I guess their competitors do this by dropping WiFi compatibility. They exist on their own network in the same ISM band so I wonder how well they coexist with WiFi. Online reports say poorly under crowded band conditions. On Sun, 15 Jan 2017 09:50:05 -0500, you wrote: >Hi > >The push

Re: [time-nuts] wifi with time sync

Modern systems are very aggressive about DVFS (dynamic voltage and frequency scaling) so it would not surprise me at all. I have run across this problem on the timescale of one second even on 10 year old desktop hardware. On Sun, 15 Jan 2017 09:32:56 -0500, you wrote: >Hi > >I’d be surprised if

Re: [time-nuts] Looking for GPS module (Exactime ET6000/Datum 9390-6000)

I did see that one, but I am hoping I can procure something that isn't from an overseas surplus scrapper. If I can't find anything else, then I guess it's my only choice. Unfortunately, the Heol folks don't have anything to offer here either. It's not a WNRO problem, as the week and date are