Comtech EF Data RCF6001 - Manual (Page 9)

RCF6001 Satellite Terminal Description
TM082 - Rev. 1.0 Page 1-1
Highlights
•
Complete C- or Ku-Band Satellite Terminal
System
•
Optional Antennas and Cabling
•
Modem with Power and High-Stability
Reference (10 MHz) to Outdoor RF Units
•
BPSK and QPSK Operation
•
9.6 to 4375 Kbps Operation
Section One – RCF6001 Satellite Terminal Description
1.0 Introduction
The RCF6001 is a C- or Ku-Band Satellite Terminal that consists of a Radyne ComStream DMD2401LBST
Satellite Modem, Block Upconverter (BUC) and Low Noise Block (LNB). The system is available in a
variety of frequencies and power levels. Cabling and
antennas can also be supplied for a single source
solution.
The frequency agile DMD2401 LBST is the heart of the
RCF6001 system. The DMD2401LBST modem supplies
an L-Band output frequency of 950-1525 MHz.
The modem also supplies power and a high stability 10
MHz reference signal through the center conductor of
the transmit and receive cables. This design eliminates
the use of an outdoor power supply and diplexer. The
LBST controls all parameters of the outdoor units
remotely or via the front panel of the modem. The
modulator and demodulator operate independently
using BPSK and QPSK modulation in either SCPC or
VSAT modes.
The Block Upconverter (BUC) comes in a variety of frequencies and power levels. The BUC is based on a
simple block conversion with an L-Band input and a C- or Ku-Band output. A single LO does the
conversion from L-Band to the desired output frequency. The output power levels that are available for C-
Band BUCs are 5, 10, 20 and 40 watts. The available power levels for the Ku-Band BUCs are 2, 4, 8, 16
and 25 watts.
The Low Noise Block (LNB) comes in a variety of frequencies and power levels. The Low Noise Block does
a single LO conversion from C- or Ku-Band to an L-Band output. Typical gain of an LNB is 60 dB.
2.0 DMD2401 LB/ST Satellite Modem
The Radyne Corporation DMD2401 LB/ST L-Band Satellite Modem and Outdoor Unit (ODU) Driver is a
microprocessor-controlled Binary Phase Shift Keyed (BPSK) or Quadrature Phase Shift Keyed (QPSK),
Modulator and Demodulator for use as part of the transmitting and receiving ground equipment in a
satellite communications system. The DMD2401 LB/ST has the capability of delivering power and a 10
MHz Reference signal to a Low Noise Block Downconverter (LNB) and also to a Block Upconverter (BUC)
capable of an 8-Watt output. The DMD2401 LB/ST Modem is referred to as the “modem” or DMD2401
throughout the remainder of this document.
This versatile equipment package combines unsurpassed performance with numerous user-friendly front
panel programmable functions. All of the configuration, monitor and control functions are available at the
front panel. Operating parameters such as variable data rates, FEC code rate and IF/RF frequencies can
be readily set and reconfigured from the front panel by earth station operations personnel. Additionally, all
functions can be accessed with a terminal or personal computer via a serial link for complete remote
monitor and control capability.