|HGT I is a device for the
generation of exact time data as timebase for delay measurements.
Initially, HGT I is calibrated in stand-alone operation
outside a building. During calibration the GPS clock within
the device is synchronized with the UTC time of the GPS
|Upon completion of the synchronization
HGT I can be used inside buildings without requiring further
GPS signal reception, because the internal clock now generates
clock pulses (1 per second) with a maximum deviation of +-1
ms during 8, 24 or 72 hours.
|By means of these clock pulses
two HGT I devices can be used simultaneously to conduct highly
precise delay measurement between any two global locations.
||Front and rear view HGT I
Click here to enlarge