3-36 Service Guide E8361-90001
Tests and Adjustments PNA Series Microwave Network Analyzers
Performance Tests (Agilent N2721A Software Package) E8361A
Power Meter Accuracy Test
This test is intended for power meters used in testing the PNA series network analyzers.
The “Dynamic Accuracy Test” requires the use of a power meter that has been calibrated to
a higher accuracy than the standard power meter.
Power meters with options G12 and H12 specify an improved instrumentation accuracy
over a limited power range. (These power meters do not contain unique hardware.) A
power meter may be returned to the factory to have one of these options added to an
existing power meter or to renew the calibration for one of these options.
This test procedure is an alternative to returning the power meter to the factory. When a
power meter passes this test, it is considered to be calibrated for the G12 or H12 option
even though it has not been returned to the factory.
This test procedure is available on the Internet as a separate document, Agilent Part
Number E8356-90051. The on-line document may have a more recent print date. Refer to
“Contacting Agilent” on page 2-9 for the Internet address (URL).
EPM Series Power Meters That Can Be Tested Using This Procedure
This procedure assumes that the recommended model number power meter is being tested.
The alternate model numbers can be tested but the necessary procedural steps may differ.
NOTE It is recommended that the revision number for the power meter “Main
Firmware” be Ax.03.00 or higher. This applies to all power meter model
numbers listed above (both recommended and alternate).
Equipment Used for the Power Meter Accuracy Test
Recommended
Model Number
Alternate
Model Numbers
E4419B E4418A/B, E4419A, EPM-441A, EPM-442A
Equipment Type
Recommended
Model or Part Number
Alternate
Model or Part Number
Range calibrator 11683A None
Precision digital voltmeter 3458A
Any with the required accuracy and
resolution
a
a. Required accuracy and resolution at the following voltage levels:
14 mV input: 0.0100% accuracy 10 nV resolution
0.140 V input: 0.0050% accuracy 100 nV resolution
0.450 V input: 0.003% accuracy 100 nV resolution
Power sensor cable 8120-8319, 11730A Any equivalent
Cable, BNC, 50Ω Any Any
Adapter for connecting BNC
cable to DVM inputs
Any Any