Anritsu S820A Radio Antenna User Manual


 
MAINTENANCE MANUAL
Site Master™ S820A
Antenna and Coax/Waveguide Analyzer
1. INTRODUCTION
This manual provides maintenance instructions for
the Site Master S820A Antenna and Coax/ Wave
-
guide Analyzer. It describes the product and provides
performance verification procedures, parts replace
-
ment procedures, and a replaceable parts list.
2. DESCRIPTION
The Site Master (Figure 1) is a hand held SWR/RL
(standing wave ratio/return loss) and Distance-To-
Fault measurement instrument. It combines a syn
-
thesized source, VSWR Bridge, and receiver on a
single printed circuit board (PCB). An optional
power monitor is also available. A block diagram is
shown in Figure 2.
3. PERFORMANCE VERIFICATION
Paragraphs 4 through 7 contain tests that can be
used to verify the performance of the Site Master
model S820A having any version of firmware.
3.1. Initial Setup for Testing
1. Press and hold the
ESCAPE/CLEAR key,
then press the
ON/OFF key to turn on the
Site Master. (This sets the instrument to
the factory preset state.)
2. Release the
ESCAPE/CLEAR key and use
the Up/Down Arrow key to adjust the
contrast to give a readable display.
RF
Det
Serial
Interface
External
12V
Battery
Charging
12-15V DC
(45C mA)
MARKER
SAVE
DISPLAY
RECALL
DISPLAY
LIMIT
SAVE
SETUP
RECALL
SETUP
CAL
ENTER
ON
OFF
PRINT
RUN
HOLD
ESCAPE
CLEAR
AUTO
SCALE
START
CAL
1
2
820A
4
3
5
6
8
9
0
7
Test
Port
Figure 1. Site Master S820A
490 JARVIS DRIVE ¨ MORGAN HILL, CA 95037-2809
P/N: 10580-00031
REVISION D
PRINTED: FEBRUARY 2003
COPYRIGHT 1999-2003 ANRITSU CO.