Filter
Top Products
10. Connect the output of the MA2418A Ref
-
erence Source to the two attenuators so
as to add 40 dB of attenuation (Figure 3).
11. Connect the MA2418A Reference Source
and the attenuators to the input of the
560-7N50B RF detector.
12. Verify that the power monitor reading is
now –40.0 dBm ±2 dB.
7. TERMINATION VERIFICATION
This test can be used to verify the accuracy of termi
-
nations used with the Site Master. The test uses the
precision return loss mode of the 541XXA Scalar
Measurement System. Measurements of termina
-
tions using this mode provide results that are trace
-
able to the NIST (National Institute of Standards
and Technology) standards for the precision airline.
a. Equipment Required:
· Scalar Measurement System,
Anritsu 54161A/69A
· Offset SWR Autotester,
Anritsu 560-98KF50-15
· Precision Airline, Anritsu 19KF50
· Open/Short, Anritsu 22K50
· 50 Ohm Termination, Anritsu 28K50
·
Source Adapter, Anritsu K220B
b. Procedure
1. Connect the test equipment as shown in
Figure 3.
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 fre
-
quency to 0.01 GHz. Press the Enter
key.
(c) Using the Data Entry Keypad or
Data Entry Knob, set the STOP fre-
quency to 20.0 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 S820A 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 Test Setup