GOES-R GRB Reception System Revision B.02

Company Profile Founded in 1988 Co-Located with Partner, Orbital Systems, Ltd 19,000 ft2 Engineering & Manufacturing Facility 1 Acre Antenna Systems and Components Test Yard On Staff RF and Mechanical Engineers Development Labs for RF, ACUs and FES Products

GOES-R GRB Reception System Designed and Engineered to Provide Reliable and High Performance GRB Reception Advanced Design Scalar Waveguide Feed Designed In House Using the Latest CAD Technology Exceptional G/T Performance Extensive Filtering for Rejection of Nearby Cell Phone Terrestrial Interference Custom GOES-R GRB Dual Channel Demodulator Using Latest Commercial DVB-S2 ASICs Pressurized Feed Electronics for Maximum Reliability

Dual Polarity GRB Feed

Feed CAD CST Modeling

Feed CAD CST Modeling

Dual Polarity GRB Feed - Internal Dual Channel Downconverter Air Purge Valve Low Loss Cavity Filters Low Noise Amplifiers Air Exhaust Port

Dual Polarity GRB Feed Cavity Filter Plate Field Replaceable Filter / LNA Assembly

Feed Controller & Downconverter Local Oscillator and Controller PCBs Top Front Cover Dual Channel Downconverters Back Cover

GOES-R Feed Block Diagram

Feed Local Oscillator PC Board

Feed Controller Block Diagram

Dual Polarity GRB Feed Specifications Feed Structure High Efficiency Scalar Waveguide Center Frequency 1686.6 MHz Polarizer Septum Type, Dual Left Hand and Right Hand Polarity Isolation > 27 dB RF Filtering Multi-Pole Extremely Hi Q Cavity Filter (Pre LNA) RF Bandwidth 20 MHz Converted Bandwidth LNA (s) 25K Noise Temp (0.4 dB Noise Figure) Downconverter (s) LO Frequency 1546.6 MHz Image Rejection > 100 dB Output Frequency (Dual Channel) 140 MHz Dual Channel LHC and RHC Downconverter (s) Performance Very High TOIP +36 dBm, Low Phase Noise -93dBc/Hz @ 10 kHz Feed Power +24 VDC @ 400 mA Supplied by Demodulator Through Control Cable Environmental -40 to +50 C Pressurization Dry Air Pressurization Status Available (Via RS-485) LO Lock Status, Temperature, Humidity, Pressure and Voltage Environmental Control Automatic Dry Air Purging to Maintain Environment specifications are subject to change without notice

GRB Feed Cavity Filter Response

Feed LHCP NF and Gain Test Data

Feed RHCP NF and Gain Test Data

Feed LHCP Downconverted GRB Test Signal

Feed RHCP Downconverted GRB Test Signal

8PSK Test Pattern at L Band Directly from Generator 1686.6 MHz

8PSK Test Pattern Downconverted 1686.6 MHz to 140 MHz LHCP

8PSK Test Pattern Downconverted 1686.6 MHz to 140 MHz RHCP

Downconverter LO Phase Noise 100Hz - 1MHz

Downconverter LO Phase Noise 100Hz - 10MHz

Downconverter Group Delay LHCP

Downconverter Group Delay RHCP

Feed Cable Loss Budget System is Designed to Allow for Up to -11.5 dB IF Cable Loss Between the Feed and the Demodulator Coaxial Cables Only Carry RF, Feed DC Power and Control is Carried on a 7 Conductor Shielded Cable Control cable OD = 0.3”, Voltage Drop to the Downconverter with 300’ Cable Length =1.7 VDC (Feed Current 400 mA)

GOES-R GRB Demodulator

GOES-R GRB Demodulator Rear Panel AC Power To Feed SD Slot GB Ethernet LH / RH Inputs

Demodulator Internal Photo IF Amplifiers / SAW Filters Freescale iMX6 Module Feed RS-485 and Power Control Power Supply DVB-S2 ASICs

GRB-200 Functional Block Diagram

Controller Sub-System Block Diagram

GOES-R Demodulator RF Section

Demodulator Sub System x2 Block Diagram

Data Interface Sub System x2 Block Diagram

Data Processing Sub System Block Diagram

UDP XML Status Message <GRB200> <Serialno val="150101"/> <Rev val="0.9"/> <Temp val="32C"/> <Fan val="OK"/> <RF> <AGC val="2.52V"/> <LOlock val="LK"/> <LHCP> <RSSI val="-34.3dB"/> <Atten val="00dB"/> </DEMOD> </LHCP> <FEED> <RHCP> <Power val=" ON"/> <Current val="52mA"/> <Overcur val="No"/> </RHCP> <Comm val="OK"/> </RF> <DEMOD> <Voltage val="23.4VDC"/> <PLsync val="ON"/> <Temp val="38C"/> <EsNo val="12.4dB"/> <Hum val="35%"/> <AGC val="2.45V"/> <Press val="0.4PSI"/> <Mode val="8PSK"/> <Purge val="OPEN"/> <Spectrum val="NOR"/> </FEED> </GRB200>

UDP Data Packet Format

GRB Demodulator Specifications Basic Demodulator Structure Advanced ASIC Based Digital Demodulation, DVB-S2 Standard Compliant GRB Modes / Decoding Supported QPSK 9/10 Symbol Rate 8.665938 Msps / 8PSK 2/3 Symbol Rate 7.825768 Msps FEC Supported LDPC / BCH GRB Coding and Modulation CCM (Constant Coding and Modulation) Implementation Loss Near Shannon-Limit Typical Eb/No for QEF Performance 4.1 dB (QPSK 9/10) QEF = PER Better than 1E-6 3.9 dB (8PSK 2/3) Transport Stream Support Generic Transport Stream for Space Data Packets Matched Filtering 0.25 Roll-Off Factor Channels Supported Simultaneous LHCP and RHCP Reception Input Frequency (Dual Channel) 140 MHz Input Filtering SAW Filter Matched to GRB Signal Bandwidth Data / Status Interface GB Ethernet / CADU packets via UDP Receive Signal Strength Indicator (RSSI) DC Voltage Output for Remote Antenna Alignment Size 1U Rack Mount Power Universal 100 - 240 VAC, 47 to 63 Hz RF Input Connectors (2) Type N Female Feed Support Provides Power To and Monitors Status of Quorum GRB Dual Polarity Feed specifications are subject to change without notice

GRB Demodulator SAW Filter Response

Feed LHCP Downconverted GRB Test Signal Through Demodulator Front End

Feed RHCP Downconverted GRB Test Signal Through Demodulator Front End

8PSK Test Pattern Downconverted Through Demodulator 1686 8PSK Test Pattern Downconverted Through Demodulator 1686.6 MHz to 140 MHz LHCP

8PSK Test Pattern Downconverted Through Demodulator 1686 8PSK Test Pattern Downconverted Through Demodulator 1686.6 MHz to 140 MHz RHCP

Feed Preliminary Test Data

Feed 3.7m G/T Results

GVAR GOES West 3.7m Antenna

GVAR GOES West 3.7m Antenna GVAR Signal Downlink Off

Tracking METOP Satellite L Band Downlink Polarity Test

Revision A.01