The authors tried the measurement of the delay by
DMCA first. Delays were measured between the 1PPS
(pulse per second) from the GPS receiver and the head
of CMR data inputted to user’s 4000SSi, using a
universal counter 5313A (resolution: 50 ns) by
Hewlett-Packard Co., Ltd. As well known, the 1PPS is
outputted every second sharp, and the carrier phase data
from satellites are measured at the GPS-based station
synchronously. Although the present measurement
cannot help producing ambiguity of seconds, you are
able to measure the fractional second of the delay very
accurately.
Figure