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Chapter 4 Performing FM Receiver Tests
4.0.3.3
Configure the CX100 Modulation Generators
In this example, the CX100 Modulation Generators use the following settings:
Modulation Generator 1
Type
Deviation
Rate
Waveform
Mod 1 soft-key
Modulation Generator 2
Type
Deviation
Rate
Waveform
Mod 2 soft-key
External Modulation
Mod Ext soft-key
To Configure the CX100 Modulation Generators:
1.
Open the Modulation Generator 1 panel.
2.
Modulation Generator 1 Modulation Type: select FM.
3.
Modulation Generator 1 Deviation: set to 1.8 kHz (60% of 2.5 kHz max deviation
rating of radio).
4.
Modulation Generator 1 Rate: set to 1.000 kHz.
5.
Modulation Generator 1 Waveform: select Sine.
6.
Mod 1 soft-key: set to ON.
7.
Open the Modulation Generator 2 panel.
8.
Modulation Generator 2 Modulation Type: select FM.
9.
Modulation Generator 2 Deviation: set to 350 Hz.
10. Modulation Generator 2 Rate: set to 0.0670 kHz.
11. Modulation Generator 2 Waveform: select Sine.
12. Mod 2 soft-key: set to ON.
Rev 000
4 - 4
Table 4-3 FM Receiver Test- Modulation Generator Settings
CX100 ComXpert Test and Measurement Guide
FM
1.8 kHz
1 kHz
Sine
Mod 1 ON
FM
350 Hz
0.067 kHz
Sine
Mod 2 ON
Mod Ext OFF
22144016
October 2022
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