User's Manual

4-10 The Tx wand antenna Installation Manual
has been adjusted properly. Therefore,
if you try to see a change with LED1
set too bright you may miss that
change and be slightly off tune. If this
is the case, on the antenna, turn pot R1
(LED brightness adjust)
counterclockwise until the yellow
LED1 dims then adjust C1 again.
11. After you have finished adjusting, on
the “Y” antenna, turn R1
counterclockwise so that LED1 is
dim.
12. On the Controller, place jumper JP6
(Scan Rate) into position 1-2.
13. On the Controller, return switch S3 to
the left position.
14. Replace both antenna covers and
secure them using the spanner screws.
15. Replace the Controller cover and
secure it with the screws.
Three-antenna zone
To tune a three-antenna zone, refer to Figure
4.10 and use the following instructions:
1. Using the spanner key provided or a
spanner screwdriver, take off all
antenna covers by removing the
spanner screws on each.
2. Take off the Controller cover.
3. A “steady” and a “flashing” green bar
should be illuminating on LED13. The
“steady” green bar is the Tx Output
Level and should be above the
“flashing” bar but not off the top of
the scale. The “flashing” green bar is
the Tx Supervise threshold and should
be at the second bar from the bottom
on LED13.
NOTES:
You want to have the “steady” green
bar as close to the top of LED13 as
you can get it without going off the
scale (
Figure 4.10). Adjust pot R6 (Tx
Gain) to make it this way. If the
“steady” green bar is not present, then
you need to turn down pot R6.
4. Normally in three-antenna zones
jumper JP6 (Scan Rate) alternates
between illuminating LED1, LED2
and LED3 as it checks the “X”, “Y”
and “Z” antennas. For tuning three-
antenna zones, you want to isolate one
antenna at a time using jumper JP6.
For these instructions we will start
with the “X” antenna, then the “Y”
antenna second and finally the “Z”
antenna.
5. On the Controller, quickly remove
jumper JP6 (Scan Rate) so that only
LED1 (the “X” antenna output
indicator) is illuminating. This may
take a few attempts. You will not
leave the jumper in place while
tuning.
6. On the “X” antenna, adjust C1 until
LED1 lights brightly (
Figure 4.11).
NOTE: The object here is to use the
brightness of LED1 to show when C1
has been adjusted properly. Therefore,
if you try to see a change with LED1
set too bright you may miss that
change and be slightly off tune. If this
is the case, on the antenna, turn pot R1