Transmit clock phase adjustment, Transmit data phase adjustment, Doppler buffer clock source – Comtech EF Data C5 User Manual
Page 73: 4 transmit clock phase adjustment, 5 transmit data phase adjustment, 6 doppler buffer clock source
C5/K1/K3 Integrated Satellite Terminal System
Specifications
Rev. 0
2–39
2.5.1.3
Transmit Clock Switching Due to Failure of Selected Clock
The terminal will automatically switch the transmit clock source to SCT internal on failure
of terminal timing.
2.5.1.4
Transmit Clock Phase Adjustment
The transmit clock phase can be set by the operator to NORMAL, INVERTED, or AUTO
mode.
2.5.1.5
Transmit Data Phase Adjustment
The transmit data phase can be set by the operator to NORMAL or INVERTED.
2.5.1.6
Doppler Buffer Clock Source
The Doppler/plesiochronous buffer clock can be selected by the operator from the
following sources:
Receive Clock
Transmit Terrestrial
Clock
Must be within
% 100 PPM of the nominal receive data rate. Or it can be
any multiple of 8 kHz as long as it is
# 64 kHz but " 4.376 MHz or any
multiple of 8 kHz or 600 Hz as long as it is
# 32 kHz and < 64 kHz, or
any multiple of 600 Hz as it is
# 2.4 kHz but " 32 kHz.
External Clock
Must be within
% 100 PPM of the nominal. Or it can be any multiple of
8 kHz as long as it is
# 32 kHz but " 4.376 MHz or any multiple of
600 Hz as long as it
# 2.4 kHz but " 32 kHz.
SCT (Internal)
% 0.01 PPM
2.5.1.7
Receive Clock Switching Due to Failure of Selected Clock
The terminal will automatically switch the receive clock source to receive satellite on
failure of the selected clock.