GPS satellite no show.

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sapril001
Posts: 23
Joined: Tue Sep 22, 2020 10:51 pm

GPS satellite no show.

Post by sapril001 »

Hi all,

On my Challenger G3 system with an IBOXV2 I have a problems with the GPS not comming on line when I power up the instruments. It does not comme on line one out of 3 time, if I cycle the power it does usually comme on line but in any case I am not able to see the satellite in the GPS window. No satellite position and no satelite signal level even if I have a GPS working condition. I have tried a generic GPS antenna with an SMC connector and it is the same thing sometime it come on and some time not, I can not see any satelite position and signal level either.

When I have a GPS fix it generally stay ON but sometime it goes Off and cycling the power turn it back ON.

Sometime on power up I have this message that appears shortly on the screen, ''No sensor data available Check iBOX data feed'' the GPS might come ON but it usually goes Off just few seconds later.

Any idea what cause this problem.

Thanks
Sylvain April
sapril001
Posts: 23
Joined: Tue Sep 22, 2020 10:51 pm

Re: GPS satellite no show.

Post by sapril001 »

IMG_20250122_142909.jpg
IMG_20250122_142909.jpg (128.5 KiB) Viewed 3415 times
I use an antenna with an SMA connector not an SMC as I said.
I check the Version of the software in the IBOX and it read ''Version 1001'', the version that I did upload was supposed to be Version 5.
I dont see a 5 in the Version number ? What should be the number after a Version 5 upload.

Thanks
Sylvain
sapril001
Posts: 23
Joined: Tue Sep 22, 2020 10:51 pm

Re: GPS satellite no show.

Post by sapril001 »

5 in binary would be 101, now I have 1001 which is 9.
rainier
Site Admin
Posts: 731
Joined: Fri Aug 28, 2020 7:03 pm

Re: GPS satellite no show.

Post by rainier »

The current fimware would report itself as 1006. The leading "1" means it is a V2 ibox.
sapril001
Posts: 23
Joined: Tue Sep 22, 2020 10:51 pm

Re: GPS satellite no show.

Post by sapril001 »

Hi All,
I did instal the latest firmware for my V2 I box, I am seeing 1006 as the latest version now. I also uploded the firmware for both Chalengers screen but I still have no show for the satellite and now occasionaly the second screen stay blank when I power up the system, sometimes both screen stay blank at start up. When both screen are OK I still loose the GPS often and I have this message ''No sensor data available Check iBOX data feed''
I tried to change the resistor value of both CAN bus terminaison but it did not change anything, same problem.

What should I try to fix this GPS problem.
rainier
Site Admin
Posts: 731
Joined: Fri Aug 28, 2020 7:03 pm

Re: GPS satellite no show.

Post by rainier »

This has nothing to do with the CAN bus.
It's not receiving data from your iBOX that that goes via your LAN connection.
So check that.
Also when the messages comes up - does the LED on the iBOX continue flashing ? If not and stays lit then we can assume that your iBOX is freezing up for whatever reason - if it goes dark and stays that way I'd check power to the iBOX.
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