User's Manual

General Guidelines
7-6 Troubleshooting
4. If the value of (HNL + RSS) is higher
than -85dBm, there is either an
unwanted transmission on the UHF
channel, or the value of the RSS
parameter is too high. The value
for the RSS parameter must be
between 10 and 20.
5. Check whether there are
Transponders or an Exciter’s Test
Tag in the immediate vicinity that
transmit messages accidentally.
6. Run the procedure, Setting Up the
Carrier Threshold again, and
monitor the value for the HNL
parameter after each setup.
7. For procedures on eliminating the
unwanted transmission, refer to
Chapter 4, Setup Guidelines in the
95 Series RFID System Technical
Guide.
Reader does not record
all transmitted
messages.
Reader does not
record all
transmitted
messages by the
Transponder.
The receiving zone is too
small because of either a
high carrier threshold, or
there is random
interference on the UHF
channel.
1. Run the procedure, 95 Series RFID
System - Final Test on page 5-14.
Step 2 - Set up the Carrier Threshold
for the Reader.
2. If you observe a random variation of
noise and interference on the UHF
channel, either increase the value of
the RSS parameter, or set the HTL
parameter to a higher value than the
one that was automatically set by
the Reader.
3. If the receiving zone is too small
after you set a higher carrier
threshold, follow the setup
guidelines recommended in Chapter
4, Setup Guidelines in the 95 Series
RFID System Technical Guide.
Note
A UHF channel is subject to random
noise and interference. The Reader
disregards the messages with data
errors. For an optimal channel, free of
interference and industrial noise, the
Reader must be able to receive all
messages transmitted by a single
Transponder placed in its reading
Problem Symptom Probable Cause Solution