13
Table 2-3. Front Panel Controls
CONTROLS
TYPE
FUNCTION
ON/OFF
Push Button Switch
Selects ON or OFF (Bypass) mode of
operation, RF output power level (button press
<2 seconds), LED intensity (button press >2
seconds but <6 seconds). After 6 seconds the
PA shuts down. When in Bypass, the amplifier
makes a connection from RADIO input to the
LOS connector output.
LOS MODE
Push Button Switch
Selects the LOS and WB modes of operation
(refer to Table 2-1)
SAT MODE
Push Button Switch
Selects the SATCOM modes of operation
(refer to Table 2-1)
Table 2-4 I/O Connectors
CONNECTIONS
TYPE
FUNCTION
SATCOM Antenna
BNC Type RF connector
Used to attach SATCOM Antenna
RADIO
BNC Type RF Connector
Used to attach to Transceiver
LOS Antenna
BNC Type RF Connector
Used to attach Line of Sight Antenna
WB Antenna
BNC Type RF Connector
Used to attach Wideband Antenna
NOT INSTALLED ON TCR-MBA-50
DC Power input connection
Circular Mil connector
Used to apply DC power input to amplifier
Auxiliary Port
Custom 12 pin flat contact
connector
Used for remote control and other special
functions
2.3
Operation
2.3.1 General Information
The TCR-MBA-50 (both versions) can be used for operation once it has been installed as
described in Section 3.
2.3.2 Equipment Set-up
Refer to Paragraph 2.2 for the locations and functional description of the controls and indicators.
Make sure that the TCR-MBA-50 (both versions) has been installed according to the instructions
provided in Section 3.
2.3.3 Operating Procedures
2.3.3.1 Push Button Switch Operation
In normal operation, the TCR-MBA-50 (both versions) provides transmit power amplification
for radios operating in the 30-512 MHz VHF and UHF bands. The mode switch provides
selection for either the SATCOM, LOS or WB modes and the PWR button selects the power
levels (Refer to Table 2-1 and Table 2-2). RF output to the SATCOM, LOS or WB antenna ports
is automatically selected and determined by the mode selected.