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Application
EDACS repeater testing using the
IFR 2945B Communications Service
Testing live EDACS repeater stations is made quick and
easy using the IFR 2945B Communications Service
Monitor. A step by step guide to a typical measurement
Introduction
The IFR 2945B Communications Service Monitor is ideal-
ly suited to the testing of trunking repeaters. It provides
an extensive array of tests, allowing verification of per-
formance, and rapid diagnosis of faults.
For the very latest specifications visit
Note
This application note will assist the first time users by lead-
ing them through the initial stages in setting up the 2945B
and testing an EDACS repeater.
The majority of this document is concerned with using the
2945B test set off-air, that is with no physical connection
to the repeater. The limitations of this method will be
explained, but the method does allow rapid set up and
quick verification.
www.aeroflex.com
Monitor
application
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Summary of Contents for Aeroflex 2945B
- Page 1 Introduction This application note will assist the first time users by lead- ing them through the initial stages in setting up the 2945B The IFR 2945B Communications Service Monitor is ideal- and testing an EDACS repeater. ly suited to the testing of trunking repeaters. It provides...
- Page 2 What do you need to know? In order for the 2945B test set to work on your system, it needs to be told some details about the system - EDACS is a custom made trunked radio system and each installation is different from all other EDACS systems in some details.
- Page 3 3 kHz for high speed deviation and 750 Hz for low speed - the 2945B service monitor will detect a signal reliably at levels deviation will work for all EDACS systems.
- Page 4 6) Then press either the [dBm] softkey, or the orange Measuring off-air [dBm/ENTER]. The IFR 2945B test set has several tests built in to allow monitor- ing and diagnosis of EDACS repeaters. These are designed to be 7) Pressing [return] returns you to the list of tests.
- Page 5 Since the data displays and decode only facilities may not be Having set all this up, press [PROGRAM] and select [quick test]. available for all systems the IFR 2945B product is normally sup- plied with this functionality disabled. For further information please contact the Aeroflex help desk +1-800-835-2350.
- Page 6 Windows terminal program, select 'Transfer', 'Receive Text File' and enter the filename. Summary The 2945B test set is an ideal tool for both monitoring and fault finding on EDACS repeater systems, allowing rapid diagnosis of both programming problems and hardware failure.
- Page 7 For the very latest specifications visit...
- Page 8 All trademarks are acknowledged. i n f o - t e s t @ a e r o f l e x . c o m Parent company Aeroflex, Inc. ©Aeroflex 2005. Part No. 46891/944, Issue 1, 05/05...
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