Re: [time-nuts] Is possible precise 1pps?

2013-03-18 Thread Attila Kinali
On Wed, 13 Mar 2013 23:51:53 +0100 (CET) hutt...@seznam.cz wrote: NEO-6M buy for less than $ 10 including shipping from China, NEO-6T is unfortunately expensive, and frankly I do not know who sells it for at least a little reasonable prices. The -T models are not that expensive. The problem

Re: [time-nuts] Is possible precise 1pps?

2013-03-18 Thread Pieter ten Pierick
Hi, On Wed, 13 Mar 2013 23:51:53 +0100 (CET) hutt...@seznam.cz wrote: NEO-6M buy for less than $ 10 including shipping from China, NEO-6T is unfortunately expensive, and frankly I do not know who sells it for at least a little reasonable prices. The -T models are not that expensive. The

Re: [time-nuts] DCF77 PPS

2013-03-18 Thread folkert
Silly 1,2 instead of 0,0012 fudge: indeed a mistake. How I measured when I wrote the first message: - I waited for a bit to be received - exact after the bit was received and read by my testprogram, I would check what the offset was to a second. e.g 13:45:12.456 would be an offset if

[time-nuts] LORAN C is on the air as of 0900 EST Monday

2013-03-18 Thread paul swed
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[time-nuts] SR620: cal error 23

2013-03-18 Thread Volker Esper
Hi all, While auto calibrating the SR620 I get the message cal error 23 - the manual isn't that specific about this message, it only states, that error numbers 19 to 23 are caused by Stop TAC problems. However, the counter counts, but I can't do automatic calibration any more. Anyone

Re: [time-nuts] SR620: cal error 23

2013-03-18 Thread Herbert Poetzl
On Mon, Mar 18, 2013 at 04:28:32PM +0100, Volker Esper wrote: Hi all, While auto calibrating the SR620 I get the message cal error 23 - the manual isn't that specific about this message, it only states, that error numbers 19 to 23 are caused by Stop TAC problems. The manual also

Re: [time-nuts] SR620: cal error 23

2013-03-18 Thread Volker Esper
Am 18.03.2013 18:00, schrieb Herbert Poetzl: The manual also states that error codes 19-23 are the same as the start values (n - 16), so 23 minus 16 should be the same as '7' i.e. 'stop linearity byte out of range' Where do you read that, I can't find it :-/ Volker

Re: [time-nuts] SR620: cal error 23

2013-03-18 Thread Herbert Poetzl
On Mon, Mar 18, 2013 at 07:34:26PM +0100, Volker Esper wrote: Am 18.03.2013 18:00, schrieb Herbert Poetzl: The manual also states that error codes 19-23 are the same as the start values (n - 16), so 23 minus 16 should be the same as '7' i.e. 'stop linearity byte out of range' Where do you

Re: [time-nuts] u-blox -6T purchase

2013-03-18 Thread Paul
On Mon, Mar 18, 2013 at 12:00 PM, Pieter ten Pierick wrote: The -T models are not that expensive. The problem is that you have to buy them in batches 30 Sounds like a time-nuts group buy? Just going by the u-blox shop for North America: NEO-6T u-blox 6 GPS Module Precision Timing 1 -

Re: [time-nuts] SR620: cal error 23

2013-03-18 Thread Volker Esper
Am 18.03.2013 19:53, schrieb Herbert Poetzl: page 40, search for 'stop tac' Herbert, you are the best :-) I didn't expect the error codes in the programming commands section. I'm afraid it could be a hardware failure. Thanks Volker ___

Re: [time-nuts] Is possible precise 1pps?

2013-03-18 Thread Chris Albertson
It you want a current technology timing GPS with support and a warranty and just need one unit, you can get these for about $60. The specs in the PDF below say it is pretty good. You have to call and ask for the special evaluation prices and say how you heard about it. The receivers are easy to

Re: [time-nuts] SR620: cal error 23

2013-03-18 Thread Volker Esper
Running Auto Cal a few seconds after switching the counter on, the calibration succeeds, though with values different from the warm ones (who'd have thunk). After warming up, error 23 wins. I have to open it and do the old school trouble shooting with coolant spray... However, any advice,

Re: [time-nuts] u-blox -6T purchase

2013-03-18 Thread Bill Dailey
I thought there was someplace where you can get them for $35 or $60. Check the archives Sent from mobile On Mar 18, 2013, at 1:23 PM, Paul tic-...@bodosom.net wrote: On Mon, Mar 18, 2013 at 12:00 PM, Pieter ten Pierick wrote: The -T models are not that expensive. The problem is that you

[time-nuts] TIE measurement for arbitrary frequency oscillator

2013-03-18 Thread John Doering
Hi all! First time poster here, but I've been lurking for a couple months and found this place to be highly informative. I want to measure TIE for a 7.362 MHz oscillator. Ultimately, I want to process into TDEV and MTIE. 1) Is it acceptable to use the DMTD method and set a signal generator

Re: [time-nuts] TIE measurement for arbitrary frequency oscillator

2013-03-18 Thread Said Jackson
John, Besides buying an expensive source analyzer that will cost $10K or more, a high quality frequency counter should do the job. You could also use a cheap pld or PicTic to generate a 1PPS from your oscillator then use the counter to compare the 1pps to your reference 1pps for phase drift