How to find the Signal Strength for GPS?

Legacy Open AT
1

Hello,
I am a newbie for wavecom. I want to know how to get signal strength for GPS. It is possible for GSM with “AT+CIND” command. But i dont know for GPS.
Pls tell me is there any AT commands or ADL to get the signal strength for GPS. I want to display the GPS signal strength in my LCD display.
Could some one help me out?

2

There is no AT command, you simply have to parse the standard NMEA frames.
You can have information on the NMEA sentence contents here: gpsinformation.org/dale/nmea.htm#NMEA

You should look at GSV sentences to get the list of satellites in view and their associated signal quality. Example for 11 satellites:

$GPGSV,3,1,11,13,84,204,36,04,64,252,49,23,51,058,31,25,46,143,3072
$GPGSV,3,2,11,02,38,303,46,07,30,163,43,20,25,103,27,16,05,063,3775
$GPGSV,3,3,11,17,02,214,32,01,100,08,01,184,*4F

3

As the above suggests, note that there is not a simple “Signal Strength” value for GPS.

(even with GSM, the “Signal Strength” value is not a complete description of the coverage “quality”)