User's Manual
Installation Manual The Tx wand antenna 4-7
Why Re-tune a Tx wand Antenna?
Tx wand antennas come from the factory set
to Y2 (131.072 KHZ). Under most
circumstances, they will not need to be
adjusted. However, there are 3 possible
reasons to re-tune:
a. The antenna had to be mounted close
to a metal object during installation
and was detuned.
b. Stagger Tuning is implemented.
c. Someone has made an adjustment to
the Tx wand antenna and you want to
get it back to the factory setting.
Tuning a Tx wand antenna
A Tx wand antenna should only be adjusted
during initial installation or for the reasons
stated in the “Why Re-tune a Tx wand
antenna?” section.
NOTE: Make sure all connections have been
made as outlined in the previous sections.
In this manual, the term “potentiometer “ is
often shortened to “pot” for simplicity.
IMPORTANT:
Tuning procedures can cause Supervise
alarms. Notify staff and security that you will
be adjusting (and possibly weakening) the
zone and they will need to pay special
attention to area traffic during this time.
Before you start
For either tuning method, before you start note
the number of antennas in the zone and
complete the following steps to establish a
good starting point:
On the Controller:
Verify JP14 (Bar Display Enable) is
in place.
Verify JP15 (Tx Output LED Enable)
is in place.
Adjust pot R6 (Tx Gain), clockwise
to the maximum.
Verify pots R4 (Y Balance) and R12
(Z Balance) are at their maximums
(fully clockwise).
Move Switch S3 to the right position.
Verify JP1 (Tx Frequency Select) is
in the correct frequency for the zone.
Verify that the Supervise Threshold
Level (the “flashing” green bar) is set
at the second bar from the bottom on
LED13 (
Figure 4.10). If necessary,
adjust pot R26 (Tx Supervise
Threshold) to make it this way.
On each Tx wand antenna:
Adjust pot R1 (LED Brightness)
clockwise to the maximum
After completing the previous steps, refer to
the appropriate section for your zone.
One-antenna zone
Two-antenna zone
Three-antenna zone