[time-nuts] Motorola M12+ breakout board

2018-02-16 Thread Mark Sims
Besides the Furuno GT-8036 breakout board, I just did a layout for a board that converts the pinouts of Motorola M12+ compatible receivers to a 0.1" 9-pin header that (mostly) matches the Adafruit Ultimate GPS. The Adafruit ENABLE pin is repurposed as a DGPS RTCM corrections input and the Ada

Re: [time-nuts] Motorola M12+

2013-11-22 Thread Mark C. Stephens
uency measurement Subject: [time-nuts] Motorola M12+ I am wondering if this is a sustitute of the original oncore VP receiver for the Z3801 -Z3805. (E-pay 281161070304 ) ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] Motorola M12+

2013-11-22 Thread Azelio Boriani
Strange item... it has an M12+ and a supporting board full of components. Protocol translation from 12-channel to 8-channel? The link to the PDF file returns a 404. On Fri, Nov 22, 2013 at 9:32 AM, Pascual Arbona Lopez wrote: > I am wondering if this is a sustitute of the original oncore VP rece

[time-nuts] Motorola M12+

2013-11-22 Thread Pascual Arbona Lopez
I am wondering if this is a sustitute of the original oncore VP receiver for the Z3801 -Z3805. (E-pay 281161070304 ) ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follo

Re: [time-nuts] Motorola M12+ or M12M questions

2009-07-07 Thread M. Warner Losh
In message: <4a533c36.1030...@rubidium.dyndns.org> Magnus Danielson writes: : There are (at least) three interpretations of when leap-seconds may be : inserted: : 1) At the end of every month. This is the ITU standard. It says that leap seconds can be inserted at the end of each mon

Re: [time-nuts] Motorola M12+ or M12M questions

2009-07-07 Thread Graham / KE9H
Martyn Smith wrote: Hello, I have been asked a question from a friend and would like to hear what the time-nuts have to say about the M12+ and M12M GPS receivers. His questions were: 1) It would be great if you could outline the broad algorithm and bits of information that go into keeping th

Re: [time-nuts] Motorola M12+ or M12M questions

2009-07-07 Thread Magnus Danielson
Hal Murray wrote: 2) along with the gps time signal, information is broadcast to relate gps time to utc. whenever there's a step change in these corrections (such as on midnight 31/12/2008), how does the unit react? 2.1) in particular, how quickly does the time code reflect the change, and is the

Re: [time-nuts] Motorola M12+ or M12M questions

2009-07-07 Thread Hal Murray
> 2) along with the gps time signal, information is broadcast to relate > gps time to utc. whenever there's a step change in these corrections > (such as on midnight 31/12/2008), how does the unit react? 2.1) in > particular, how quickly does the time code reflect the change, and is > the 1pps aff

[time-nuts] Motorola M12+ or M12M questions

2009-07-07 Thread Martyn Smith
Hello, I have been asked a question from a friend and would like to hear what the time-nuts have to say about the M12+ and M12M GPS receivers. His questions were: 1) It would be great if you could outline the broad algorithm and bits of information that go into keeping the 1 pps aligned to UTC.

Re: [time-nuts] Motorola M12+T - On board oscillator phase noise specand/or part number

2009-01-08 Thread John Ackermann N8UR
Stephan Sandenbergh wrote: > Hi Tom, > > Thanks - the data is rather useful. Do you perhaps know what the high freq > phase noise looks like? I'd like to lock the GPS LO to the output of my > GPSDO. However, the integrated jitter will probably determine if it could be > done, by something as simp

Re: [time-nuts] Motorola M12+T - On board oscillator phase noise specand/or part number

2009-01-08 Thread Stephan Sandenbergh
Hi Tom, Thanks - the data is rather useful. Do you perhaps know what the high freq phase noise looks like? I'd like to lock the GPS LO to the output of my GPSDO. However, the integrated jitter will probably determine if it could be done, by something as simple as filtering the output of a fractio

Re: [time-nuts] Motorola M12+T - On board oscillator phase noise spec and/or part number

2009-01-01 Thread Matt Osborn
The crystal on my M12+T is marked top to bottom: 32.768 KDS0530 I would imagine it is a custom device from KDS On Tue, 23 Dec 2008 11:06:30 +0200, "Stephan Sandenbergh" wrote: >Hi All, > >Has anyone been able to figure out the part number and/or measured the

Re: [time-nuts] Motorola M12+T - On board oscillator phase noise specand/or part number

2009-01-01 Thread Tom Van Baak
> Hi All, > > Has anyone been able to figure out the part number and/or measured the > phase noise of the quartz oscillator on board the Motorola M12+T? > > This will be an interesting figure to see. > > Regards, > > Stephan. This is an ADEV+MDEV plot for the 100 Hz output of an M12+ in free-r

[time-nuts] Motorola M12+T - On board oscillator phase noise spec and/or part number

2008-12-23 Thread Stephan Sandenbergh
Hi All, Has anyone been able to figure out the part number and/or measured the phase noise of the quartz oscillator on board the Motorola M12+T? This will be an interesting figure to see. Regards, Stephan. ___ time-nuts mailing list -- time-nuts@febo