Anritsu S113C Podręcznik Użytkownika Pobierz pdf (Strona 64)

Typical Line Sweep Test Procedures

This section provides typical line sweep measurements used to analyze the performance of

a transmission feed line system.

System Return Loss Measurement

System return loss measurement verifies the performance of the transmission feed line sys

tem with the antenna connected at the end of the transmission line. To measure the system

return loss:

Required Equipment

Site Master Model S113C, S114C, S331C, or S332C

Precision Open/Short, Anritsu 22N50 or

Precision Open/Short/Load, Anritsu OSLN50LF

Precision Load, Anritsu SM/PL

Test Port Extension Cable, Anritsu 15NNF50-1.5C

Optional 510-90 Adapter, DC to 7.5 GHz, 50 ohm, 7/16(F)-N(M)

Anritsu InstaCal Module, ICN50

Device Under Test

Transmission Feed Line with Antenna

Procedure

Step 1. Press the

MODE key.

Step 2. Select FREQ-RETURN LOSS using the Up/Down arrow key and press

ENTER.

Step 3. Set the start and stop frequencies, F1 and F2, as described on page 3-2.

Step 4. Calibrate the Site Master as described on page 3-2.

Step 5. Connect the Device Under Test to the Site Master. A trace will be displayed on

the screen when the Site Master is in the sweep mode.

Step 6. Press

SAVE DISPLAY (page 3-12) name the trace, and press ENTER.

NOTE: The antenna must be connected at the end of the transmission feed line

when conducting a System Return Loss measurement.

4-3

Chapter 4 Cable & Antenna Measurements

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Anritsu S113C Podręcznik Użytkownika Strona 64