R&S ZVA8 - Checking the Power Measurement Accuracy

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R&S ZVA Performance Test
1177.5333.02 1.7 E-11
Checking the Power Measurement Accuracy
Instrument:
Power sensor or
Power meter with power sensor
(see Chapter “Test Equipment“, Item2)
Signal generator (see Chapter “Test Equipment“, Item5)
Power splitter (see Chapter “Test Equipment“, Item6)
Calibration kit (see Chapter “Test Equipment“, Item4)
Test cable (see Chapter “Test Equipment“, Item7)
Preparation/
test setup:
Connect the signal generator to the power splitter input using the test
cable.
Connect the power sensor to a power splitter output
Connect the other power splitter output to port# using an adapter from the
calibration kit
The reference oscillators in the signal generator and in the ZVA must be
synchronized.
R&S
®
ZVA settings:
- [ Preset ]
- [ Meas : Wave Quantities: b# Src Port # ]
- [ Power : RF Off ]
- [ Meas Bandwidth : 100 Hz ]
- [ Marker ]
- [ Sweep : Sweep Type : CW Mode :
CW Frequency : {f
GEN
*}]
- [ Sweep : Single : Restart]
* For the measurement frequencies, see Performance Test Report
{fGEN}.
Measurement:
Signal generator : CW Mode, Frequency: f
gen
Signal-generator level: -5 dBm
Adjust the signal-generator level so that the power meter
reads 0 dB +/- 0.2 dB
Read off the power meter display and the ZVA marker values.
Level error = L
ZVA
– L
PS
In case of optional receiver
step attenuators further
R&S® ZVAB settings:
- [ PRESET]
- [ MEAS : WAVE QUANTITIES : b# SRC PORT #
- [ TRACE FUNCT: DATA  MEM : MATH = DATA / MEM]
- [ POWER: STEP ATTENUATORS: b#: 5 dB]
- [ POWER: STEP ATTENUATORS: b#: 15 dB]
- [ POWER: STEP ATTENUATORS: b#: 35 dB]
In case of optional receiver
step attenuators further
measurement:
Read out math trace.