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TB9400 Installation and Operation Manual

© Tait Limited March 2015

The base station consists of a subrack with up to two transmit/receive 
channels, or up to four receive-only channels. 

Receive-only base stations are currently available for operation only on 
B3 band (148MHz to 174MHz) and K4 band (762MHz to 870MHz)

1

.

The single PMU (power management unit) supplies and manages power to 
the whole subrack (refer to 

). One reciter 

and one PA (power amplifier) are needed for each transmit/receive channel. 
The PA is not required for a receive-only base station. There is also a front 
panel with user controls and fans. The modules are interconnected at the 
front of the subrack. External connections to the modules are located at the 
rear.

Modules come in different variants depending, for example, on the RF 
band or the supply voltage. 

Each module is inserted into the 4U subrack from the front and is secured 
at the front with a metal clamp. Both clamp and module are easily removed 
for rapid module replacement. The modules are secured laterally with 
plastic guides that clip into the top and bottom of the subrack. These guides 
can be easily repositioned to change the configuration of a subrack. The 
heavier modules are also secured laterally by metal tabs at the rear of the 
subrack.

The following provides a brief description of the available modules.

The reciter module comprises the 
receiver, exciter and digital control 
circuitry. The reciter provides the 
Ethernet interface and system inputs 
and outputs. 

Receive-only reciters are not fitted 
with the transmit circuitry or front 
panel SMA connectors, and are 
physically unable to transmit. 

1. Refer to