Pilot Gateway Pro funzionamento GPS

pi@rak-gateway:~ $ systemctl status ttn-gateway -l
● ttn-gateway.service - The Things Network Gateway
   Loaded: loaded (/lib/systemd/system/ttn-gateway.service; enabled; vendor pres
   Active: active (running) since Tue 2019-05-14 10:28:30 CEST; 9min ago
 Main PID: 1063 (start.sh)
   CGroup: /system.slice/ttn-gateway.service
           ├─1063 /bin/bash /opt/ttn-gateway/packet_forwarder/lora_pkt_fwd/start
           └─1094 ./lora_pkt_fwd

May 14 10:36:41 rak-gateway ttn-gateway[1063]: ### [JIT] ###
May 14 10:36:41 rak-gateway ttn-gateway[1063]: # SX1301 time (PPS): 482629668
May 14 10:36:41 rak-gateway ttn-gateway[1063]: src/jitqueue.c:448:jit_print_queu
May 14 10:36:41 rak-gateway ttn-gateway[1063]: ### [GPS] ###
May 14 10:36:41 rak-gateway ttn-gateway[1063]: # Valid time reference (age: 1 se
May 14 10:36:41 rak-gateway ttn-gateway[1063]: # GPS coordinates: latitude 45.39
May 14 10:36:41 rak-gateway ttn-gateway[1063]: ##### END #####
May 14 10:36:41 rak-gateway ttn-gateway[1063]: JSON up: {"stat":{"time":"2019-05
May 14 10:36:41 rak-gateway ttn-gateway[1063]: WARNING: [gps] GPS out of sync, k
May 14 10:36:41 rak-gateway ttn-gateway[1063]: INFO: [up] PUSH_ACK received in 5
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● ttn-gateway.service - The Things Network Gateway
   Loaded: loaded (/lib/systemd/system/ttn-gateway.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2019-05-14 10:28:30 CEST; 9min ago
 Main PID: 1063 (start.sh)
   CGroup: /system.slice/ttn-gateway.service
           ├─1063 /bin/bash /opt/ttn-gateway/packet_forwarder/lora_pkt_fwd/start.sh
           └─1094 ./lora_pkt_fwd

May 14 10:36:41 rak-gateway ttn-gateway[1063]: ### [JIT] ###
May 14 10:36:41 rak-gateway ttn-gateway[1063]: # SX1301 time (PPS): 482629668
May 14 10:36:41 rak-gateway ttn-gateway[1063]: src/jitqueue.c:448:jit_print_queue(): INFO: [jit] queue is empty
May 14 10:36:41 rak-gateway ttn-gateway[1063]: ### [GPS] ###
May 14 10:36:41 rak-gateway ttn-gateway[1063]: # Valid time reference (age: 1 sec)
May 14 10:36:41 rak-gateway ttn-gateway[1063]: # GPS coordinates: latitude 45.39382, longitude 10.98667, altitude 62 m
May 14 10:36:41 rak-gateway ttn-gateway[1063]: ##### END #####
May 14 10:36:41 rak-gateway ttn-gateway[1063]: JSON up: {"stat":{"time":"2019-05-14 08:36:35 GMT","lati":45.39382,"long":10.98667,"alti":62,"rxnb":0,"rxok":0,"rxfw":0,"ackr":100.0,"dwnb":0,
May 14 10:36:41 rak-gateway ttn-gateway[1063]: WARNING: [gps] GPS out of sync, keeping previous time reference
May 14 10:36:41 rak-gateway ttn-gateway[1063]: INFO: [up] PUSH_ACK received in 51 ms