Performance Verification
RTX100A ISDB-T RF Signal Generator Service Manual
3-21
Checking the Carrier Leakage.
13.
Use the 75
Ω
BNC(Ma)-to-
Ν
C(Fe) adapter, 50
Ω
N(Fe)-to-75
Ω Ν
(
Μ
a)
adapter, 50
Ω
SMA cable, and two 50
Ω
N(Ma)-to-SMA(Fe) adapters to
connect the RF Out connector on the RTX100A to the RF Input on the
spectrum analyzer. See Figure 3-11.
RTX100A rear panel
Spectrum analyzer (E4402B-COM)
50
Ω
SMA cable
50
Ω
N(Ma)-to-SMA(Fe)
adapter
50
Ω
N(Fe)-to-75
Ω
N(Ma) adapter
75
Ω
BNC(Ma)-to-
NC(Fe) adapter
50
Ω
N(Ma)-to-SMA(Fe)
adapter
Figure 3-11: Equipment connection for checking the carrier leakage
14.
Set the spectrum analyzer settings as indicated below:
CENTER FREQ
473.143 MHz
. . . . .
FREQ SPAN
2 MHz
. . . . . . . .
RBW
10 kHz
. . . . . . . . . . . . . .
VBW
300 Hz
. . . . . . . . . . . . . .
SWP Speed
2.0 s
. . . . . . . . .
REF Level
--20 dBm
. . . . . . . . . .
ATT
10 dB
. . . . . . . . . . . . . . .
15.
Select
ISDB-T/ASI
>
Calibration
on the RTX100A. The
ISDB-T
Calibration Password
dialog box appears.
16.
In the dialog box, enter
rtx100cal
for a password. The
ISDB-T Calibration
dialog box appears.
17.
In the dialog box, set
Reference Frequency
to
13
.
18.
Verify that the carrier leakage value on the spectrum analyzer is less than
--80 dBm.
Содержание RTX100A
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Страница 10: ...Table of Contents vi RTX100A ISDB T RF Signal Generator Service Manual...
Страница 14: ...Service Safety Summary x RTX100A ISDB T RF Signal Generator Service Manual...
Страница 16: ...Environmental Considerations xii RTX100A ISDB T RF Signal Generator Service Manual...
Страница 21: ...Specifications...
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Страница 24: ...Product Overview 1 2 RTX100A ISDB T RF Signal Generator Service Manual...
Страница 36: ...Specifications 1 14 RTX100A ISDB T RF Signal Generator Service Manual...
Страница 37: ...Theory of Operation...
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Страница 45: ...Performance Verification...
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Страница 73: ...Adjustment Procedures...
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Страница 78: ...Adjustment Procedures 4 4 RTX100A ISDB T RF Signal Generator Service Manual...
Страница 79: ...Maintenance...
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Страница 114: ...Removal and Installation Procedures 5 34 RTX100A ISDB T RF Signal Generator Service Manual...
Страница 130: ...Using the Recovery Discs 5 50 RTX100A ISDB T RF Signal Generator Service Manual...
Страница 131: ...Options...
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Страница 135: ...Diagrams...
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Страница 143: ...Replaceable Parts List...
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