RTX100A ISDB-T RF Signal Generator Service Manual
4-1
Adjustment Procedures
This section contains information needed to adjust the RTX100A.
The only adjustment in the RTX100A is for the carrier leakage.
Requirement for Adjustment
Before proceeding, note the following requirement:
The RTX100A requires a 20 minute warm-up time in a +20 to +30 environment
before it is adjusted. Adjustment done before the operating temperature has
stabilized may cause errors in performance.
In addition, the spectrum analyzer requires appropriate warm-up time to meet the
specification.
Equipment Required
Table 4-1 lists the test equipment required to adjust the carrier leakage. The table
identifies examples of recommended equipment and lists the required precision
where applicable. If you substitute other test equipment for the examples listed,
the equipment must meet or exceed the listed tolerances.
Table 4-1: Equipment required
Item
Qty.
Minimum requirements
Recommended equipment
Spectrum analyzer
1
Resolution bandwidth: 10 Hz
Agilent Technologies E4402B-COM
50
Ω
SMA cable
1
Candox Systems 5B-010-19-19-1000
50
Ω
N(Fe)-to-75
Ω
N(Fe) adapter
1
Bandwidth: 2 GHz or higher
Agilent Technologies 11852B
50
Ω
N(Ma)-to-SMA(Fe) adapter
2
Stack Electronics BA057
75
Ω
BNC(Ma)-to-NC(Fe) adapter
1
Stack Electronics BA045
Warm-up Period
Содержание RTX100A
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