Hi David14, there is a link in the openstreetmap wiki to the german kowoma.de forum where you can
download the patched firmware image for NL-422MP.
The existing firmware should be replaced by this patched image using u-center.exe (unzip it and select Tools->Firmware Update u-blox 5/6/7/M8 in the top menubar)
Dateianhänge
EXT_G50_602_LEA-5H.bdbfccefb9dbd8395dec7adece53c1f9.zip
(226.63 KiB) 136-mal heruntergeladen
Re: GPS Vermessung Sudan mit RTKlib
Beitrag von frank.stremke » 08.11.2012 - 13:35
vielen vielen dank der empfänger funktioniert erst mal also ein problem gelöst.
frank
After reflashing the firmware and enabling RXM-RAW and RXM-SFRB messages
your receiver will provide the raw measurements needed by RTKLIB.
The EVK-M8N receiver with NEO-M8N module is available from the u-blox webshop and also from this dubious handler: http://www.csgshop.com/product.php?id_product=170
“72-channel u-blox M8 concurrent GNSS receiver” is again a misleading statement, because the tracker has
only 32 parallel channels (ublox7 has 22, and ublox < 7 has 16).
NEO-M8N is capable of providing GPS, GLONASS and BeiDou (!) raw data, but it still does not support GALILEO
(should i put “fuck the EU” here )
PS. AFAIK BDS really works once you can see 4 satellites.
PPS. More details coming soon.
I have already created a wiki page for documenting the raw tracker messages https://wiki.openstreetmap.org/wiki/UbloxRAW
Еще заметил, что RtkGps (мой rtklib под android) обсуждается на geodesist.ru - обсуждение и последняя инфа.
Еще для него написали первую инструкцию. Правда, не знаю, о чем. Она на японском: Ссылка.
Пора, наверно, его до ума доводить, популярная тема становится?
Wholesale Navilock retailers started to dump glonass receivers, NL-682MP costs 21,07€ http://www.amazon.de/Navilock-ANTENNE-GLONASS-NL-682MP-DACHMONTAGE/dp/B008LFAOI
NL-682MP provides either raw gps or glonass data, and it is also possible to cross-compile
the command line rtklib utilities for windows using mingw32.
The weird borland GUI stuff is obviously not supported, and should be finally replaced by the
pyqt4 widgets.
u-blox finally has provided the documentation (partially) explaining the bad performance of NEO-M8N:
there are two versions of this module. The old one is “PCB version B” and the new one is “PCB version C” http://u-blox.com/en/evaluation-tools-a-software/gps-evaluation-kits.html
The main difference is in the ROM firmware: version B has
barebone “ROM 0.22” and version C has full “ROM 2.01”.
Clearing the flash on version B is not possible, so it must work with the flashed firmware,
which makes things slow