Hi, At the beginning of method update_cached_sensors(...) of class gps_ctrl_impl there is a condition: if(not gps_detected() || (gps_type != GPS_TYPE_JACKSON_LABS)) { UHD_MSG(error) << "get_stat(): unsupported GPS or no GPS detected"; return std::string(); } Even if constructor of the class detects that the gps_type is a GPS_TYPE_GENERIC_NMEA it's impossible that the device will be supported properly because of this single condition. I would suggest following correction: diff --git a/host/lib/usrp/gps_ctrl.cpp b/host/lib/usrp/gps_ctrl.cpp index 917f115..8f7731f 100644 --- a/host/lib/usrp/gps_ctrl.cpp +++ b/host/lib/usrp/gps_ctrl.cpp @@ -63,7 +64,7 @@ private: } std::string update_cached_sensors(const std::string sensor) { - if(not gps_detected() || (gps_type != GPS_TYPE_JACKSON_LABS)) { + if(not gps_detected()) { UHD_MSG(error) << "get_stat(): unsupported GPS or no GPS detected"; return std::string(); } -- Piotr Krysik pkrysik@elka.pw.edu.pl