500 WATT RADIOBEACON TRANSMITTER
ND2000A-02X-xx0
Page
3-11
15 January 2005
INSTALLATION PROCEDURES
3.10
The following procedures must be
performed while installing the transmitter:
3.10.1 TRANSMITTER
MODULE
INSTALLATION:
Install the modulator/power
amplifier modules, power supply modules and exciter
modules as follows:
3.10.1.1 Power Supply Modules A7/A8
(see
figures MD-1 and MD-23)
:
Install power supply
modules A7/A8 as follows:
(a) Verify the pre-installation requirements of
paragraph 3.9 have been completed.
(b) Verify screws securing modulator assemblies
A1, A3, A5, A7 and power amplifier assemblies
A2, A4, A5, A6 to terminals 1, 2 and 3 of
terminal blocks TB1 through TB8 are firmly
tightened.
(c) Position the power supply modules adjacent to
their respective supports at the front of the
transmitter cabinet.
(d) Carefully lift power supply modules and slide
into cabinet.
(e) Connect cableform floating connector P2 to
connector A7J1.
(f) Connect cableform floating connector P3 to
connector A8J1.
(g) Firmly secure attaching hardware to retaining
bolt on rear of module A7.
(h) Firmly secure attaching hardware to retaining
bolt on rear of module A8.
(i) Install 1-inch blanking plugs, provided as
ancillary parts into unused cable entry holes.
3.10.1.2 Modulator/Power Amplifier Modules
(see figures MD-1 and MD-4)
:
Install RF power
modules A2/A3 as follows:
(a) Verify the pre-installation requirements of
paragraph 3.9 have been completed.
(b) Locate modulator/power amplifier module tray
openings on the front of the transmitter cabinet.
(c) Install the two modulator/power amplifier
modules into their respective trays.
(d) Firmly secure attaching hardware to retaining
bolt on rear of modules.
(e) Mate BNC coaxial connector P9, which
terminates coaxial cable from exciter module
A4, with BNC coaxial connector J2 of
modulator/power amplifier module A2.
(f) Mate connector P10, which terminates a
cableform flying lead, with connector J1 of
modulator/power amplifier module A2.
(g) Mate connector P11, which terminates a
cableform flying lead, with connector J1 of
modulator/power amplifier module A3.
(h) Mate BNC coaxial connector P12, which
terminates coaxial cable from exciter module
A5, with BNC coaxial connector J2 of
modulator/power amplifier module A3.
3.10.1.3 Exciter
Modules
(see figures MD-1 and
MD-13)
:
Install exciter modules A4/A5 as follows:
(a) Verify the pre-installation requirements of
paragraph 3.9 have been completed.
(b) Locate exciter module tray openings on the
front of the transmitter cabinet.
(c) Install the two exciter modules into their
respective trays.
(d) Do not secure attaching hardware to retaining
bolt on rear of modules at this time.
(e) Mate connector P5, which terminates a
cableform flying lead, with connector J2 of
exciter module A4.
(f) Mate connector P6, which terminates a
cableform flying lead, with connector J1 of
exciter module A4.
