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 5-14.
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, S21 RFID System -
Final Test on page 5-15. 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