User Manual

Library Security Pedestal 2
44/62 Revision 4.2 July 2008
 100 MHz analog bandwidth (-3 dB)
 5mV/division vertical resolution
 10ns/div horizontal time base resolution
The measurements are taken on the sine wave and repetitive carrier signal, so when using a digital
scope, the sampling rate should be at least twice the maximum analog bandwidth.
6.1.3 Probes
At least one standard probe (not supplied with the TAGSYS Antenna Tuning Kit) will be required
for measuring a trigger signal for the normal tests. Three probes may be required for the extended
troubleshooting section.
6.2 Verifying Antenna Performances
The first step before starting the antenna tuning procedure is to verify the performance of the
pedestal antennas in order to ensure that the antennas need tuning.
Antenna performances are verified by ensuring that the L-SP2 EAS pedestals are capable of
detecting a TAGSYS RFID tag with an active EAS anti-theft bit.
1. Ensure that the L-SP2 is correctly installed and switched on.
2. Holding the TAGSYS RFID tag test card in your hand slowly move it from the top to the
bottom of the pedestal (which should take approximately ten seconds) with the TAGSYS
RFID tag approximately 450 mm (1,5 feet) from the pedestal. Verify that the LED/buzzer
board signals the detection of the TAGSYS RFID tag at the top and bottom of each antenna
(four positions, as two of them overlap).
3. Holding the TAGSYS RFID tag test card so that the TAGSYS RFID tag is horizontal (one of
the less optimum orientations), slowly move it from the top to the bottom of the pedestal
with the TAGSYS RFID tag approximately 450 mm (1,5 feet) from the pedestal. Verify that
the LED/buzzer board signals the detection of the TAGSYS RFID tag at the top and bottom
of each antenna (four positions, as two of them overlap).
If the L-SP2 pedestals detect the TAGSYS RFID tag at Steps 2 and 3, no tuning is required.
If results are questionable, antenna tuning and insulation must be checked.
6.3 Adjusting the Antenna Impedance
The impedance of the antennas can be tuned using the TAGSYS Antenna Tuning Kit or an
Impedance Analyzer. Before starting the Antenna Tuning Procedure, make sure that the antennas
require tuning (see section 6.2 “Verifying Antenna Performances”). If the antennas do not require
tuning, do not tune the antennas.
6.3.1 Using the Antenna Tuning Kit
To access to the antennas remove the top cover of the L-SP2 pedestals (See section 4.3.3
“Installing the Pedestal”) and slide out the side panels from the L-SP2 pedestals chassis then set
up the components and connections as shown in Figure 25 and Figure 26.