PeakTech 4105 Bedienungsanleitung Seite 130

5.19.3 Synchronous output port
Locate in front panel and a dual-purpose port. Press 【Utility】key then to 〖Sync On/Off〗softkey to
enable or disable the sync output. When the indicator at top of port lights on to be green if enable the
sync port.
The synchronous output signal is a pulse signal with TTL level, and high level is greater than 3V and
low level is lower than 0.3V. The characteristic will be different under working mode changing,
introduce as below,
(1) If select CHA under continuous mode, frequency of sync signal is same as signal from CHA port,
but phase lag to CHA's. The phase difference can be set on phase setting of CHA.
(2) CHB under continuous mode is same as CHA.
(3) Under FM, AM, PM, PWM and Sum mode, the duty cycle of sync signal is 50%, the frequency of
sync signal is same as frequency of modulating waveform and the phase of sync signal are
relative with phase of modulating waveform.
(4) Under FSK mode, the duty cycle of sync signal is 50%, frequency of sync signal equals to hop
rate. The sync signal is low level when outputting carrier frequency and high level when
outputting hop frequency.
(5) Under BPSK mode, the duty cycle of sync signal is 50%, frequency of sync signal equals to hop
rate. The sync signal is low level when outputting carrier phase and high level when outputting
hop phase.
(6) Under frequency sweep mode, the period of sync signal equals to total time of sweep process.
The rise edge corresponding to start frequency point and falling edge corresponding to marker
frequency point.
(7) Under list sweep mode, the duty cycle of sync signal is 50%, period of sync signal equals to total
sweep time and rise edge of sync signal corresponding to start number.
(8) Under burst mode, period of sync signal equals to burst period, the rise edge corresponding to
start point of burst signal and fall edge corresponding to stop point of burst signal. Sync signal
is high level if enable burst signal but low level if disable burst signal.
(9) Under FSK, BPSK, frequency sweep, list sweep and burst output mode, the frequency of sync
signal will determined by trigger signal if external or manual trigger is selected.
5.19.4 Clock Output Port '10MHz Out'
Locate in rear panel and output 10MHz clock signal, which can be used external clock for
other device.
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