User's Manual

Functional Description
044-05210 Rev. A 1-3
1.3.3 Power Module
The P-Mod is a multi-stage amplifier, which amplifies the low level signal from the AUC up to the RF
output power level of +47.8 dBm (60.25 W). The P-Mod consists of a two-stage pre-driver, a driver
amplifier and an output stage. The bias currents are electronically calibrated during factory test and
bias setting and temperature compensation are controlled by a master control unit on the P-Mod
PCB. The P-Mod also includes a directional coupler, which allows a sample of the transmit signal to
be fed to the observation path and an isolator, which protects the P-Mod from damage or potential
oscillation under adverse RF load conditions. An RF switch allows either the observation signal or the
reflected power from the antenna connector, measured at the third port of the isolator, to be passed to
the TRx
1.3.4 Front Panel
The front panel contains a RESET switch and four status and alarm LEDs.
Figure 1-1 Integrated Power Transceiver Front and Rear Isometric View
FRONT
REAR