User Manual

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5.19.1 CHA output port
Locate in front panel and the signal of CHA output from this port. Press【Output】 key
circularly to enable or disable the signal from CHA port. The indicator on the top of CHA
port light on or off to tell you whether the port is enable or disable.
5.19.2 CHB output port
Same as CHA port and won’t introduce in detail.
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,
(9) 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.
CHB under continuous mode is same as CHA.
(10) 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.
(11) 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.