[time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

All the GPS receivers that I have tested get the time message out within a second (either before or after depending upon the model) of the 1PPS pulse... except the Jupiter receivers. For those, the last byte of the time messages arrives 1.25 seconds after the 1PPS pulse. This might cause

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

uts <time-nuts-boun...@febo.com> on behalf of Mark Sims > <hol...@hotmail.com> > Sent: January 26, 2018 3:00 PM > To: time-nuts@febo.com > Subject: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / > other?) > > The Trimble ... it is a newer design..

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

oun...@febo.com> on behalf of Mark Sims <hol...@hotmail.com> Sent: January 26, 2018 3:00 PM To: time-nuts@febo.com Subject: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?) The Trimble ... it is a newer design.. The Oncore is getting rather long in the to

[time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

The Trimble ... it is a newer design.. The Oncore is getting rather long in the tooth and some have GPS week rollover issues. The Trimble has a higher clock rate and less 1PPS jitter. > Which would be the preference as timing receiver Motorola Oncore or a Trimble >

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

? > > > -=Bryan=- > > > > From: time-nuts <time-nuts-boun...@febo.com> on behalf of Pete Stephenson > <p...@heypete.com> > Sent: January 26, 2018 12:48 PM > To: Paride Legovini; Discussion of precise time and frequency measur

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?) On 1/22/2018 4:38 PM, Paride Legovini via time-nuts wrote: > Dear fellow nuts, > > I plan to build a decent GPS/GNSS-based Stratum 1 NTP serv

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

On 1/22/2018 4:38 PM, Paride Legovini via time-nuts wrote: > Dear fellow nuts, > > I plan to build a decent GPS/GNSS-based Stratum 1 NTP server, and I'm > looking for a good and possibly affordable timing GPS receiver. As others have pointed out, NTP over the internet isn't usually more accurate

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox /other?)

On Tue, 23 Jan 2018 13:33:08 -0500 ewkehren via time-nuts wrote: > The cheapest is not a 5T there are many 6 and 7 for $ 10. T gives you > nothing unless you  have saw tooth correction It also gives additional performance when your skyview is very bad. If you see only a

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox /other?)

Hi The T software does support locked position. If your antenna location is so bad that this is of any use …. move the antenna. I can get full coverage with a modern uBlox from a chair in the family room. A bit more information: If you are in an “urban canyon” (or maybe a real canyon) then

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox /other?)

time-nuts@febo.com said: > The cheapest is not a 5T there are many 6 and 7 for $ 10. T gives you > nothing unless you  have saw tooth correctionBerrt Kehren Does the T firmware also support known-position mode where it can operate on only one satellite? -- These are my opinions. I hate

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox /other?)

time-nuts@febo.com Subject: Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble /   Ublox /other?) On 2018-01-23 08:11, David J Taylor via time-nuts wrote: > Dear fellow nuts, > > I plan to build a decent GPS/GNSS-based Stratum 1 NTP server, and I'm > looking for a

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox /other?)

On 2018-01-23 08:11, David J Taylor via time-nuts wrote: > Dear fellow nuts, > > I plan to build a decent GPS/GNSS-based Stratum 1 NTP server, and I'm > looking for a good and possibly affordable timing GPS receiver. > [] > Am I overlooking something or missing interesting options? > > Cheers, >

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox /other?)

Dear fellow nuts, I plan to build a decent GPS/GNSS-based Stratum 1 NTP server, and I'm looking for a good and possibly affordable timing GPS receiver. [] Am I overlooking something or missing interesting options? Cheers, Paride IZ3SUS Paride, As

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

Paride Legovini via time-nuts writes: > I plan to build a decent GPS/GNSS-based Stratum 1 NTP server, and I'm > looking for a good and possibly affordable timing GPS receiver. Unless you plan to use the timing receiver for some other function, it really is overkill for the purpose of setting up

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

Yo Paride! On Mon, 22 Jan 2018 16:38:01 +0100 Paride Legovini via time-nuts wrote: > I plan to build a decent GPS/GNSS-based Stratum 1 NTP server, and I'm > looking for a good and possibly affordable timing GPS receiver. Before you bother looking at any GPS, you need to

[time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

I put my layout for a GPS RS-232 level converter board up on OSHPARK's shared projects. It has places for mounting the Trimble Res-T, the Adafruit Ultimate GPS, and the CN06 (Ublox 6M). The RS-232 circuit has a selectable polarity 1PPS ouput. You can use a3.3V or 5V regulator or there is a

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

On Mon, 22 Jan 2018 16:38:01 +0100 Paride Legovini via time-nuts wrote: > I plan to build a decent GPS/GNSS-based Stratum 1 NTP server, and I'm > looking for a good and possibly affordable timing GPS receiver. > > As far as I can tell there are a few common options. One is

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

Hi It is doubtful that the pc board has an RS-232 to TTL converter onboard. The module it’s self “talks” TTL levels rather than RS-232 levels. RS-232 to TTL adapters are dirt cheap and easy to find on eBay. Make sure you get one that has control lines along with the basic RX and TX functions.

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

Why not consider a more recent current UBlox module? e.g. the M8T  https://www.u-blox.com/en/product/neolea-m8t-series A quick internet search will find several suppliers of ready made boards/modules... On 22/01/2018 15:38, Paride Legovini via time-nuts wrote: > Dear fellow nuts, > > I plan to

Re: [time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

Paride The LEA-5T differs from other devices only that it has saw tooth information that can be used for correction or in a loop' I did a board and have one with variable delay using the 5T. Looking at the picture I do not even see an output for that information. Any later standard $10 module

[time-nuts] Suggestion for a timing GPS receiver (Trimble / Ublox / other?)

Dear fellow nuts, I plan to build a decent GPS/GNSS-based Stratum 1 NTP server, and I'm looking for a good and possibly affordable timing GPS receiver. As far as I can tell there are a few common options. One is the Trimble Resolution T (or SMT), that should be good and proven. The major