Ceyear 4051 Series, User Manual

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4. Operating Instruction
4.2 Advanced operation guide
139
Fig. 4.56 Test connection diagram of signal generator and Series Signal Analyzer
Step 3. set the center frequency, frequency span and reference level of the analyzer:
 Press 【 Preset 】 .
 Press
【
Frequency
】
, [Center Freq] and enter 400 MHz.

Press 【 Span/X Axis 】 , [Span] and enter 500 kHz.
 Press [Amplitude], [reflevel] and input 0 dBm;
 Press 【 Sweep 】 , [Sweep Time Auto Manual] and enter 100 ms;
 Mobile signal refers to pulse signal, which can be shielded by the Gate, and the original FM signal will
be generated. The spiked period is 5ms (it is the same as the period of the pulse signal) by the judgment
of the difference frequency scale, as shown in Fig. 4.57.
Fig. 4.57 Observed signal spectrum without the Gate