Making High Power Measurements With Option 085 (Es Analyzers Only) - Agilent Technologies 8719ES User Manual

Making High Power Measurements with Option 085
(ES Analyzers Only)
Analyzers equipped with Option 085 can be configured to measure high power devices.
This ability is useful if the required input power for a device under test is greater than the
analyzer can provide, or if the maximum output power from an amplifier under test
exceeds safe input limits for a standard analyzer. This section describes how to set up the
analyzer to perform high power measurements.
Initial Setup
1. If the analyzer is in the bypass mode configuration, remove the jumper between the RF
OUT and RF IN connector on the rear panel.
2. Connect the booster amplifier RF INPUT connector to the RF OUT connector on the
rear panel of the analyzer.
3. Connect a 20 dB coupler (that operates within the frequency range of interest) to the
booster amplifier RF OUTPUT connector.
Figure 1-47 High Power Test Setup (Step 1)
Determining Power Levels
Before continuing, save this state and rename it to UPRESET. To allow the preset mode to
be set to user preset, press
resaved as a user preset to avoid an over-power condition from the factory preset.
4. Switch on the analyzer and reduce the power level to −20 dBm by pressing
PWR RANGE AUTO
PRESET: USER
Preset
−20
POWER RANGES
. The final state can then be
.
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Making Measurements
Measuring Amplifiers
Power
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