User's Manual

General Guidelines
7-4 Troubleshooting
7. Store the Reader’s configuration by
following the steps in the section,
Storing the Reader’s Configuration
on page 5-13.
Note
The HV0 and HV1 parameters are set
at the factory during the adjusting
procedure and recorded for each
Reader. If you know the Reader’s serial
number, Lyngsoe can supply you with
the values.
Reader does not record
the Transponder’s
messages.
After the power-on
test is finished, the
sign-on message is
displayed on the
PC, but the DATA
LED is flashing
continuously at a
random rate.
An improper carrier
threshold was set, or
there is an unwanted
transmission on the UHF
channel.
1. Check whether the Reader is
receiving information that has been
accidentally transmitted from other
Transponders in its vicinity. If you
eliminate the unwanted
transmission, the DATA LED will
stop flickering.
2. Check whether an Exciter’s Test Tag
is transmitting accidentally. Switch
off the power supply of all Exciters
surrounding the Reader and monitor
the DATA LED. If the DATA LED
stops flickering, the unwanted
transmission originated in one of the
Exciters.
3. Run the procedure, 95 Series RFID
System - Final Test on page 5-14.
Step 2 - Set up the Carrier Threshold
for the Reader.
4. If the Reader reports a channel noise
level below -95dBm, but you are still
not receiving the Transponders’
messages, check the noise level
reported by the Reader with and
without UHF antennas connected. If
the noise level is identical or varies
slightly (±1 dBm), replace the
Reader.
5. If the Reader reports a noise level
(HNL) above -95 dBm, the unwanted
transmission is on the UHF channel.
For procedures on eliminating the
unwanted transmission, refer to
Chapter 4, Setup Guidelines in the
95 Series RFID System Technical
Guide.
Problem Symptom Probable Cause Solution