- 2100 MHz – 2300 MHz Broadband Amplifier
- High linearity PA provides 50 Watt output for broadcast of digital waveforms
- Single or Multiple OFDM, QAM or QPSK/BPSK channel support
- Fully protected against input overdrive, temperature and output load VSWR conditions
- Remote control and self monitoring via RS485 interface
- HPA Monitor GUI software available for local PC control via RS232 interface (CD included)
- Integrated AC/DC power supply
The DMPA 2200 is designed to operate as a final amplification
stage for a terrestrial S-Band transmitter or repeater system. It
amplifies an input S-Band signal to a digital average output
power level of 50 Watts, while maintaining its linear characteristics.
The DMPA 2200 architecture is an LDMOS based solid state
design operating in Class A/AB linear mode over a frequency
range of 2100 MHz to 2300 MHz. The amplifier is fully protected
against input overdrive,overheatingand output load VSWR conditions.
The protection circuits are all self correction, allowing the amplifier to
be restored to its normal operating state upon removal of the fault condition.
The DMPA 2200 incorporates an internal automatic self leveling
loop to maintain constant gain over the life of the equipment.
The automatic level control (ALC) circuit will compensate for the
input signal level variations and the gain variations caused by
changes in temperature as well as for the gain change due to
devices aging. Depending on the application, the amplifier can
be configured to operate in AGC mode, maintaining a constant
The amplifier’s operational parameters are monitored and controlled
by an embedded system controller that can be accessed from the RS232 interface using the GUI software provided.
The DMPA 2200 is a field replaceable system component that
includes an integrated AC/DC power supply and is designed for
All of the amplifier’s components are enclosed in a standard 19”
rack mount chassis, occupying only “2RU” of cabinet space.
The amplifier is forced air cooled using four high performance
fans, which are installed on the amplifier enclosure front panel.