Dear all,
I meet a problem about the gpsdo for lock. First I check the
usrp->get_mboard_sensor("gps_locked",0); it indicates the gps is locked.
Then the program is sleep for 5 mins. Then I check the gps again but in
this time it does not lock. I do not think that in this 5 mins the gps lost
lock because every time I try like this, the first time it is locked but
after 5 mins it is unlocked, as follows:
*The reference clock is:GPS lock status: locked*
Setting device clock source to:external
Setting device clock rate to:1e+08
Setting time source to:external
*The reference clock is:GPS lock status: unlocked*
UHD Warning:
get_time: ValueError: get_nmea(): no GPRMC message found
UHD Warning:
get_time: ValueError: get_nmea(): no GPRMC message found
*(Here I can not read the gps time from the gpsdo, I think it is because
the gpsdo does not lock).*
Does anybody meet the similar problem? Any suggestion would be appreciated.
Best regards
Zan
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