Specifications

18. Fasten the Main Board Assembly in place, using
the 6 TORX screws removed in Step 7.
19. Insert P401 (miniature coax) Into J401 located at
the front right corner of the Main Board Assembly.
20. Insert P501 (miniature coax) Into J501 located at
the rear right corner of the Main Board Assembly.
21. Install the following cable connectors into the cen-
ter area of the Main Board Assembly:
a. P401 (2-conductor)
b. P501 (4-conductor)
c. P502 (15-conductor, orange wire)
d. P503 (15-conductor, blue wire)
e. P504 (15-conductor, green wire)
f. P505 (4-conductor, purple wire)
22. Make sure all connectors are fully seated. The
P401 (2-conductor) and P502 (15-conductor; or-
ange wire) cables must be fully pushed down into
the notch In the center wall before the top cover is
installed.
23. Install the top cover, using the 16 screws removed
in Step 5.
24. Slide the wrap back on and fasten in place with the
8 screws removed in Step 3.
25. Connect the antenna’s coax cable to the lower N-
type connector labelled ANTENNA.
26. Plug in AC cord. The unit is now ready for use.
DUPLEXER TUNING PROCEDURES
The following procedures must be used to tune the du-
plexer to the transmit and receive operating frequencies. The
duplexer must be retuned any time the frequencies change
or whenever the unit has been repaired or any module (du-
plexer, etc.) has been replaced. Refer to Figures 12 and 12
when performing these procedures for connections and tun-
ing screws.
EQUIPMENT REQUIRED
• Signal Generator with 50 ohm output impedance and
output attenuator
• Communications Monitor with 50 ohm input imped-
ance and signal level indicator
• 50 ohm pads (quantity of 3); a 6, 10 or 20 dB pad
may be used
• 50 ohm termination load
• Hollow shaft nut driver
• Slotted screwdriver with long, narrow shaft to work
with nut driver
• Phillips head screwdriver
It may be easier to perform Steps 19 and 20 BE-
FORE the Main Board Assembly is fully low-
ered into place.
NOTE
The duplex has been factory tuned for 462.675 MHz
transmit and 467.675 MHz receive frequencies.
NOTE
Figure 12 - Duplexer Test Setup
AE/LZB 119 1882 R1B
33