TESEO LIV3F: Antenna RF path

[vin883]

Hi,

I just designed a pcb with LIV3F module. I tried to follow layout instructions but I'm not RF expert. I can read through the USART bus but every values (GPGGA, GPVTG, etc.) are set to 0, as if there is no input RF signal. 

Herein below schematic design and my Eagle files, hope someone could point out what mistake I did?

 

 

[vin883]

Uart catch from module looks like this:

 

$GPGGA,000107.000,0000.00000,N,00000.00000,E,0,00,99.0,10

[GalaxyQuest]

Hi,

Some basic questions before we dig a bit deeper,

Can you please check if there is voltage on the LNA?

More of a fundamental question, are you testing this outside? 

Can you also show us what is xxGSV message is looking like?

 

[vin883]

Hi GalaxyQuest,

 

Thanks for your reply!

I tested inside and outside, same result.

VCC_RF and ANT_OFF got 3.3V, at least on pcb traces and pads, couldn't test on LNA pins itself since package is so small (BGA).

Well, I have no xxGSV (GPGSV, GLGSV, GAGSV, PQGSV) messages at all!

Only GPGGA, GNGSA, GPGGL, GPVTG, GPRMC...