User's Manual

GBI Antenna Controller User Manual Ver. 1.00
Antenna Tuning
P/N 1100031 page a
3. Antenna Tuning
3.1 Factory Tuning
The antenna is factory tuned and does not require customer adjustment. If it becomes
necessary to tune the antenna, the following sections describe the process.
3.2 Antenna Tuning Equipment
!
!!
!
DVM
- Digital Voltmeter (mV range).
!
!!
!
DVM
adapter Cable
(see Figure 3-1).
!
Non-conductive
ceramic screwdriver
.
Figure 3-1: DVM Adapter Cable
3.3 Tuning Procedure
Antenna tuning should be performed after the antenna has been installed in its final
position. This will ensure that the tuning will compensate for the effects of nearby
metallic objects.
To tune the selected antenna, follow the procedures below:
1) Choose the transmitter of antenna to be tuned by removing it’s SL jumper
( for constant RF transmission) and by placing all other SL jumpers in
OFF position
2) Connect
Antenna
coax cable or twisted wires to the selected antenna
terminal block on the Reader (Figure 0-1)
3) Connect the
DVM adapter Cable
to connector P5 (Figure 0-1).
4) Apply power to the Reader.
Note: Do not touch the
Antenna
.