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Re: [gpsd-users] Galileo

From: Anthony Stirk
Subject: Re: [gpsd-users] Galileo
Date: Tue, 6 Mar 2018 14:20:03 +0000

Confirming by default Galileo is disabled and its only support on modules with F/W version 3.01. Generally if the module has -10 at the end of it i.e MAX-M8Q-10 then it has Galileo support, it just needs turning on via CFG-GNSS. If your module is -01 you're out of luck the hardware supports it but the firmware doesn't and you can't upgrade the firmware (NEO/MAX modules unsure about LEA).


On Tue, Mar 6, 2018 at 2:01 PM, Mike Tubby <address@hidden> wrote:

On 3/6/2018 12:08 PM, aimdev wrote:

Galileo has been enabled using the ubx-center program as has NME 4.1,
and the Galileo satellites are present. Nmea sentences as monitored by ublox-center are present

I also disabled all constellations except Galileo, but suspect using gpsmon that
this may be modified by gpsd as there are more satellites that I expect, and the GNSS constellation
setting as shown by ublox-center show gps/glonass enabled

Grepping the code show’s no occurrences of $GAGSA or $GAGSV sentences,
which makes me suspect gpsd is not Galileo compliant, but I am happy to be proven incorrect :)

I would expect GPSD to detect the Ublox-8 and switch to UBX binary mode.

Once in binary mode the config message UBX-CFG-GNSS (0x06 0x3E) would have to be sent to enable Galileo operation ... I suspect that GPSD does not do this (yet) in the same way that GPSD does not enable hardware monitopring of antenna faults, jamming detection or spoofing detection.


Anyone got any ideas on this?



On 6 Mar 2018, at 06:17, Paul <address@hidden> wrote:

I'm using NEO-M8T and by default it only uses GPS and GLONASS.

Galileo has to be enabled, using UBX command UBX-CFG-GNSS
(0x06 0x3E).

When all three GNSS are enabled, problem then is that many
gpsd clients (all?) will only report on the first 20 satellites
and there are often more than 20.

Even with three GNSS enabled, you don't get NMEA GAGSV messages
for Galileo, you have to enable those by using UBX-CFG-NMEA
(0x06 0x17) to set NMEA protocol version 4.1.

Paul Nicholson

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