Specifications

ZVx Test Sequence (R&S ZVR, R&S ZVRE, R&S ZVRL)
1043.0009.50 5.15 E-7
5.2.3.3 Testing the Attenuators
Test equipment:
Connecting cable ZV-Z11 (50 ) or ZV-Z12 (75 )
Test setup: Connect cable between PORT1 and PORT2.
Settings at the network analyzer:
PRESET
SWEEP SINGLE POINT
CENTER Test frequency
SOURCE POWER -20 dBm for ATT xx  30 dB
Maximum level for ATT xx > 30 dB
SOURCE ATTxx
IF BANDWIDTH 10 Hz
MEAS S21
for measurement STEP ATT a1 and STEP ATT b2
S12
for measurement STEP ATT a2 and STEP ATT b1
FORMAT MAGNITUDE
MARKER Marker frequency = test frequency
Reference
measurement:
 Perform reference measurements at the test frequencies and with an attenuation
value of 10 dB.
Reference value = marker value
Measurement:
 Set test frequencies according to test report.
 Set ATT xx to 0 dB and SOURCE POWER to –20 dBm. Increase the attenuation
in steps of 10 dB up to 30 dB and read out the respective marker value.
Attenuation error = (marker value – reference value)
 Set ATT xx to 30 dB and SOURCE POWER to maximum value. Determine the
difference from the measurement with SOURCE POWER –20 dBm.
 Increase the attenuation in steps of 10 dB up to 70 dB and read out the respective
marker value.
Attenuation error = (marker value – reference value – difference value)
Permissible deviations: ATT a1, a2 ATT b1, b2
< 2 dB < 2 dB