User's Manual Part 2

RBS 2109 User’s Guide
6 Antenna System Tests
This chapter describes the t
ests, Distance To Fault (DTF) and Standing Wave
Ratio (SWR), used to verify t
he antenna system installation. The tests also
include measuring the feed
er length to calculate feeder system loss and delay.
The tests described are v
alid for the following GSM 800/1900 antenna systems:
• Passive antenna system (
no TMA)
• Antenna system with Dual
Duplex Tower Mounted Amplifier (ddTMA)
Equipment for Antenna Sy
stem Tests
The Anritsu Site Master S
331C is recommended for the tests described in
this chapter.
The following Site Mast
er models can be used, if available:
•
S120A for GSM 800
•
S235A for GSM 1900
•
S251A/B for GSM 800/1900
•
S331A/B for GSM 800/1900
Note: Instructions for these older instruments are not included in this manual.
73EN/LZT 720 0090 Uen R1A 2004-09-17