R&S N 8000 Series System Manual page 141

Dtv transmitters atsc
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2. Under Nominal Value, enter the required transmitter power that you set in the previous
section.
3. Use Set Gain to measure and save the DC voltage of the forward-power test point at
nominal output power.
To abort, exit the Trigger: Set info window by pressing Back. To continue, confirm by
Note
pressing OK.
4. Switch off the transmitter.
5. Use Set Offset to measure and save the DC voltage of the forward-power test point at
0 W output power.
To abort, exit the Trigger: Set info window by pressing Back. To continue, confirm by
Note
pressing OK.
6. Enter the other settings as shown in the table below:
Function
Measured Values
Power
Voltage
Configuration
Nominal Value
RF Fail Limit
RF Warning Limit
2098.0188.72
Chapter 4
Explanation
Measurement display
Current forward power
Currently measured DC voltage of the test point
Definition and setting of a nominal value for forward power. Setting of
upper and lower thresholds for forward power; warnings and fault mes-
sages are issued if these thresholds are violated.
Used to enter the nominal value, determined if necessary by external
measurement of the forward power
Used to select a dB value referenced to the set nominal power for for-
ward power; a fault message is issued if the actual value drops below
the nominal value.
Used to select a dB value referenced to the set nominal power for for-
ward power; a warning is issued if the actual value drops below the
nominal value
- 4.23 -
Commissioning
E-1

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