Gps not working

Hi all,
I was testing GPS on DB410c. I followed the steps.
sudo systemctl start gpsd
sudo /usr/sbin/gpsdctl add pds://any
gpsmon

I got the following output. But i didn’t get fix Latitude and Longitude values.
tcp://localhost:2947 NMEA0183> Unknown command ‘’
┌──────────────────────────────────────────────────────────────────────────────┐or":12}
│Time: n/a Lat: n/a Lon: n/a │":“Qualcomm PDS”,“activated”:“2019-09-05T09:16:52.373Z”}]}
└───────────────────────────────── Cooked TPV ─────────────────────────────────┘false,“timing”:false,“split24”:false,“pps”:true}
┌──────────────────────────────────────────────────────────────────────────────┐
│ GPVTG GPGSA GPGGA GPRMC │
└───────────────────────────────── Sentences ──────────────────────────────────┘
┌──────────────────┐┌────────────────────────────┐┌────────────────────────────┐
│Ch PRN Az El S/N ││Time: ││Time: │
│ 0 ││Latitude: ││Latitude: │
│ 1 ││Longitude: ││Longitude: │
│ 2 ││Speed: ││Altitude: │
│ 3 ││Course: ││Quality: 0 Sats: │
│ 4 ││Status: V FAA: N ││HDOP: │
│ 5 ││MagVar: ││Geoid: │
│ 6 │└─────────── RMC ────────────┘└─────────── GGA ────────────┘
│ 7 │┌────────────────────────────┐┌────────────────────────────┐
│ 8 ││Mode: A1 Sats: ││UTC: RMS: │
│ 9 ││DOP: H= V= P= ││MAJ: MIN: │
│10 ││TOFF: ││ORI: LAT: │
│11 ││PPS: ││LON: ALT: │
└────── GSV ───────┘└──────── GSA + PPS ─────────┘└─────────── GST ────────────┘
(26) $GPGGA,0,66
(25) $GPRMC,V,N
53
(25) $GPVTG,T,M,N,K,N*2C
(30) $GPGSA,A,1,1E
(26) $GPGGA,0,66
(25) $GPRMC,V,N
53
(25) $GPVTG,T,M,N,K,N
2C
(30) $GPGSA,A,1,1E
(26) $GPGGA,0,66
(25) $GPRMC,V,N
53
(25) $GPVTG,T,M,N,K,N
2C
(30) $GPGSA,A,1,1E
(26) $GPGGA,0,66
(25) $GPRMC,V,N
53
(25) $GPVTG,T,M,N,K,N
2C
(30) $GPGSA,A,1,1E
(26) $GPGGA,0,66
(25) $GPRMC,V,N
53
(25) $GPVTG,T,M,N,K,N
2C
(30) $GPGSA,A,1,1E
(26) $GPGGA,0,66
(25) $GPRMC,V,N
53
(25) $GPVTG,T,M,N,K,N
2C
(30) $GPGSA,A,1,*1E
(26) $GPGGA,0,66
(25) $GPRMC,V,N
53

I had waited more than 30 minutes but i didn’t get fix. Why i am not getting any values ?

Regards,
Ajith

Are you using the on-board antenna?

Hi,
Thanks for your response,

Yes, I am using the on-board antenna.

Reagrds,
Ajith.

The on-board antenna is extremely weak so there’s a good chance that is the problem. If the board is indoors there’s no chance of getting a fix. In fact where I am located I’ve not even been able to get a fix with the board hanging out of the window.

Qualcomm published a document describing how to reconfigure the board and use an external GPS antenna:

The onboard antenna is not particularly sensitive. I have never seen it get a fix indoors, but it will work if you are outdoors.

-L-