CHAPTER 2
2.0
GENERAL INFORMATION
2.1
RX-400A RECEIVER PURPOSE AND FUNCTION
The TEN-TEC RX-400A is an all mode, wide RF coverage, HF/VHF/UHF receiver that
delivers military-grade performance in a Commercial-Off-The-Shelf (COTS) product. The
unit is designed to provide signal acquisition, monitoring and collection functions using
manual tuning, frequency scan or directed search memory channel modes of operation.
The RX-400A covers the frequency range of 100kHz to 3000 MHz using a mix of high
performance analog circuitry for the RF to IF conversion path coupled to a digital back-
end comprised of the latest digitizer and DSP techniques to provide a software defined
receiver. The DSP section provides 27 digital IF filters from 100Hz to 300kHz and AM,
FM, USB, LSB and CW detection modes. Other than a power ON/OFF switch,
headphone jacks, volume control and status indicators, the receiver has a blank front
panel, thus is designed for remote control operation. Remote control is via a
companion RCU-400A Receiver Control Unit or via a host/PC using an optional Graphical
User Interface (GUI) software package.
Figure 2-1 RX-400A, Front View
All interface to the Receiver is via rear panel connectors for power, RF input, IF outputs,
line audio output, external reference input and remote control. The rear panel also
contains a dip-switch to set the receiver configuration to operational or firmware update
modes.
2-1
PN 74446