Introduction - Wavetek IS-136 MS Operating Instructions Manual

Introduction

Introduction
The IS-136 MS and IS-136 DB test program supports you in signaling tests as
well as RX and TX tests on IS-136 mobiles. Precise, numeric measured figures
are read out of course. What is new, and indispensable for a fast visual check of
performance, is the graphic presentation of the quality parameters of the modu-
lator in the "constellation display". Here you can recognize phase and magnitude
errors of the modulator at a glance. And what is also useful for a fast visual check
is the graphic display of the burst and modulation spectrum of a mobile.
Call from mobile
Call from base station
Handoff procedures
Hookflash
Speech loop
Bit error rate (BER)
Mobile-assisted handoff (MAHO)
Modulation spectrum
Burst power

The IS-136 DB test program allows to select the down-banded channels addition-
ally. All other features are the same as offered by the IS-136 MS test program.
What is tested
RF power
Frequency offset
∆P/symbol
Origin offset
RMS vector error
Phase error
Min./max. magnitude
(graphic) Time alignment
(graphic) Standard analog measurements
IS-136 MS
(graphic)
(graphic)
(graphic)
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