UNI-T UTG1000X Series

User’s Manual UTG1000X Series
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Select Carrier Wave
The carrier wave can be sine wave, square wave, ramp wave or arbitrary wave. The default is sine wave. After
FSK mode is selected, press Wave key to enter the carrier wave interface.
Set Frequency for Carrier Wave
Refer to Set Frequency for Carrier Wave in AM mode.
Set Modulation Source
The modulation source of this instrument can be select internal or external. When FSK mode is enabled, the
default modulation source is internal; it can be change by multifunction rotary knob or press
ModSrcExternal soft key.
1) Internal Source
When the modulation source is internal, the internal modulation wave is a square sine with duty ratio 50%
(non-adjustable). The frequency of movement between the carrier frequency and the hopping frequency
can be specified by setting the FSK rate.
2) External Source
When the modulation source is external, the carrier wave will be modulated by the external wave. ASK
amplitude output is controlled by logical level on the external digital modulation terminal (FSK /CNT/Sync
connector). For example, it outputs the frequency of carrier wave when the logical level of external input
is low; it outputs the hopping frequency when the logical level of external input is high.