Anritsu Site Master S113BQ, Maintenance Manual

Page: 5 / 16

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
4, page 5.
2. Press the
Power
key on the 541XXA to On.
3. Press the
System Menu
key.
4. Using the Menu up-down keys: Highlight
RE-
SET
, then press the
Select
key.
5. At the
RESET MENU
display, use the Menu
up-down keys to highlight
RESET TO FAC-
TORY 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 En-
try Knob, set the Start frequency to
0.01 GHz. Press the
Enter
key.
(c) Using the Data Entry Keypad or Data En-
try Knob, set the Stop frequency 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.
9. Using the Menu up-down keys: Highlight
PRE-
CISION RL
, then press the
Select
key.
10. At the PRECISION RETURN LOSS menu dis-
play, use the Menu up-down keys to highlight
FINAL
, then press the
Select
key.
11. Press the
Calibration
key.
12. At the CALIBRATION menu display, use the
Menu up-down keys to highlight
START CAL
,
then press the
Select
key.
13. At the PRECISION RETURN LOSS CALI-
BRATION menu display prompt, connect the
Offset SWR Autotester to Input A, if you have
not done so yet.
14. Connect the precision air line to the Offset
SWR Autotester test port. Position the air line
Site Master S113BQ MM 5
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 4. 541XXA Precision Return Loss Setup