Section 9 Maintenance
9-10
(3) Test method
[Procedure]
1. Connect the N-SMA cable to network analyzer for connecting with
MT8820A.
2. Set the start frequency of the network analyzer to 30 MHz and stop fre-
quency to 3 GHz.
3. At the top of SMA cable, perform calibration using Open, Short and Load
termination.
4. Connect SMA connector to the AUX1 Output connector of MT8820A.
5. Set the MT8820A output level to −10 dBm to reach a state where all the
internal attenuators are off. In addition, set the output frequency at 0.4
MHz, outside the band. To set the output level and output frequency,
refer to the operation manual for the measurement software.
6. Perform VSWR measurement, then check if the specification is satisfied.
9.1.7 Output frequency of the RF signal generator
The test on output frequency of RF signal generator is explained here. This item is
a function test.
(1) Test object specification
Table 9-1-7-1 Output frequency range
Item Specification
Output frequency range 30 MHz to 2700 MHz
(2) Setup
Connect as shown in Fig. 9-1-7-1. Setup the PC to enable to control
MT8820A via GPIB interface.
Note:
Confirm that MT8820A reference signal is set to 10 MHz of the external out-
put. Settings for reference signal can be checked in Ref.Frequency on the
System Configuration screen.
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