User's Manual
Table Of Contents
- 95 Series RFID System User’s Guide
- Table of Contents
- List of Figures
- Preface
- Introduction
- Reader R95 Installation and Connections
- Exciter E95 Installation and Connections
- Power Supply TRM95 Installation and Connection
- Configuration and Operation
- Before You Begin
- General Procedure Rules
- Setting Up the Reader/PC Connection
- Reader’s Power-up Sequence
- Learning Procedure (Optional)
- Resetting the Reader
- Checking the Reader’s Basic Parameters
- Setting Up the Exciter’s Address
- LF Transmitter Output
- Configuring the Reader
- Setting Up the Carrier Threshold
- Setting Up the Exciter’s Test-Tag
- Setting Up the Real Time Clock
- Configuring the Reader’s Application Parameters
- Configuring the Reader’s Network Parameters
- Storing the Reader’s Configuration
- Reader - Final Setup
- 95 Series RFID System - Final Test
- Programming and Testing the Transponder T95
- Troubleshooting
- Specifications
- Transponder T95 Messages
- Excitation Modes
- Reader Software Upgrade Procedure
- Glossary
- Index
Setting Up the Carrier Threshold
Configuration and Operation 5-9
Note You can set these parameters for each particular application to optimize the
functionality of the Reader and the RFID System.
Setting Up the Carrier Threshold
Warning Before starting this procedure, you have to enable the auto-report and set the data
report in ASCII format, by typing the following:
DAR=Y<Enter>
DHX=N<Enter>
To setup the Reader’s carrier threshold, do the following:
1. Switch off the excitation field, by typing:
C<Enter>
2. Set the Receiver’s signal-to-noise ratio, by typing:
RSS=10<Enter>
Note You can set other values for the RSS parameter. Lyngsoe recommends using a value
between 10 and 20 for the RSS parameter.
3. If you are using Diversity, enable it by typing:
HAD=Y<Enter>
Ensure that both UHF antennas are connected. If you are not using Diversity,
disable it by typing:
HAD=N<Enter>
Ensure that only
the right UHF antenna is selected (see the HAS parameter).
4. Check the noise level on the UHF channel, by typing:
HNL<Enter>
The HNL value should be between -107 to -95dBm.
If the HNL value is higher than -95dBm, check if there are unwanted
transmissions on the UHF channel (433.9 MHz). Pay special attention to
Transponders or Exciters in close proximity to the Reader; these can accidentally
transmit data that can be received by the Reader.
If the HNL value is lower than -105dBm, check its value without the UHF
antennas attached. The difference between these two readings must be greater
than 3dB.