9.
TERMINATION VERIFICATION
This test verifies the accuracy of the Site Master
SM/PL termination using the precision return loss
mode of the 541XXA Scalar Measurement System.
Measurements of terminations using this mode pro-
vide results that are traceable to the NIST (National
Institute of Standards and Technology) standards for
the precision airline.
a.
Equipment Required:
·
Scalar Measurement System,
Anritsu 541XXA
·
Offset SWR Autotester,
Anritsu 560-97A50-20
·
Precision Airline, Anritsu 18N50
·
Open/Short, Anritsu 22N50
·
50 Ohm Termination, Anritsu 26N50
·
Source Adapter, Anritsu 34NN50A
b.
Procedure
1.
Connect the test equipment as shown in
Figure 6.
2.
Press the
Power
key on the 541XXA to
On
.
3.
Press the
System Menu
key.
4.
Using the
Menu
up-down keys: Highlight
RESET, then press the
Select
key.
5.
At the RESET MENU display, use the
Menu
up-down keys to highlight RESET
TO FACTORY DEFAULTS, then press
the
Select
key.
6.
Set the signal source for the frequency
range as follows:
(a) Press the
Frequency
key.
(b) Using the Data Entry Keypad or
Data Entry Knob, set the START
frequency to 0.01 GHz. Press the
Enter
key.
(c) Using the Data Entry Keypad or
Data Entry Knob, set the STOP fre-
quency to 4.0 GHz. Press the
Enter
key.
7.
Press the
Channel 2 Display On/Off
key to
Off.
8.
Press the
Channel 1 Menu
key.
Site Master MM
7
541XXA Scalar Measurement System
Connect Dashed Line Connections
When Directed By Procedure
Precision
Air Line
Open/Short
Source
Adapter
50 Ohm
Termination
Offset SWR
Autotester
Termination
under Test
A
B
Beadless
End
Figure 6.
541XXA Precision Return Loss Setup
