BTW, the u-Blox NEO-M8N doesn't fit RTK specs (patched it returns RAW
data): it works on band L1 (20cm range), what I need is a GPS module
capable on wiorking on L1+L2 to get 1cm range precision (if it's correct).
Regards,
Ilia.
Il 26/04/2016 22:25, Bruce Griffiths ha scritto:
On Tuesday, April 26, 2016 02:40:14 PM Attila Kinali wrote:
Ciao Ilia,
On Tue, 26 Apr 2016 02:24:04 +0200
Ilia Platone <[email protected]> wrote:
Just for informations, as I must build the board from scratch, does this
design is good to implement into the datalogger?
I mean, for the second RTK purpose, does this u-blox module satisfy my
requirements (link below)?
http://www.opendigitalradio.org/lea-m8f-gpsdo
I cannot say. I don't know what your requirements are and thus
cannot say what a good design choice is.
Yes, the LEA-M8F does support the output of satellite phase data.
Yes you can use that for RTK. BTW: this is stated in the documentation
for the module. You just need to read it.
BTW2: is this a hobby project or is this a work project?
Attila Kinali
Specs are:
1) Relative position of any pair of clocks located up to 2km apart has to be
known to within 3cm or so. Post processing is OK, however differential Earth
tides between the clock locations may need to be considered.
2) The difference in the time offset between any pair of clocks located up to
2km apart shall not vary by more than 200ps (1ns time stamp quantisation) or
2ns (10ns timestamp quantisation) over an 8 hour period (at night).
Post processing of data to fit wander etc is not practical as the SNR is too
low to support this.
Bruce
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--
Ilia Platone
via Ferrara 54
47841
Cattolica (RN), Italy
Cell +39 349 1075999
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