Orbital Tri-Band L, S, & X Band Receive Only Feedhorn

Description

The Orbital Tri-Band L, S, & X Band Receive Only Feedhorn is a concentric X Band, S Band, and L Band feedhorn complete with low noise amplifiers and downconverters for all three bands. The Orbital Tri-Band L, S, & X Band Receive Only Feedhorn’s X Band downconverter is fully synthesised, and the L Band and S Bands are block downconverted.
Orbital Tri-Band L, S, & X Band Receive Only Feedhorn Applications:

• Reception of X-, S- and L-Band EOS-DB satellites, including satellites that downlink simultaneously in X- and S- Band, or L- Band
• Reception of NOAA and DMSP satellites including reverse polarity NOAA satellites

Orbital Tri-Band L, S, & X Band Receive Only Feedhorn Features:

• Concentric X-, S-, and L Band feed on a common axis eliminates loss and pointing issues of off axis multi-band feeds
• X Band feed operates fixed RHCP
• S and L Band feed software selectable LHCP or RHCP
• Simultaneous reception of X- and S- or L- Band signals
• Heavy duty aluminium enclosure, powder coated and assembled with stainless steel fasteners to eliminate external corrosion
• Complete feed control and monitoring via serial RS-422 data link
• Pressurised feed with temperature and humidity sensors as well as a built in purge valve to ventilate the entire antenna when excess humidity is detected in the electrical cabinet or feed

Orbital Tri-Band L, S, & X Band Receive Only Feedhorn Specifications:
X Band Feedhorn / Downconverter Specifications
X- Band Operating Frequency: 7750 – 8400 MHz
LNA Noise Temperature: 45 K max at 23°C
Local Oscillator Frequency: 7.03-7.68 GHz, 100 kHz typical (no spectrum inversion)
Local Oscillator Stability: ± 5ppm
Oscillator Phase Noise: -100 dBc/ Hz at 10 KHz typical
Output Frequency: 720 MHz (3 dB BW – 120 MHz)
IF Filter: 4 pole tubular, 120MHz BW
Conversion Gain: 65 dB typical
Output 1 dB Compression Point: > +10 dBm
S Band Feedhorn / Downconverter Specifications
S- Band Operating Frequency: 2200 – 2260 MHz
S- Band Converter Noise Temperature: 70 K typical
Local Oscillator Frequency: Selectable: 2072/2096/2120 MHz
Local Oscillator Stability: ± 2.5 ppm
Oscillator Phase Noise: -100 dBc/Hz at 10 KHz typical
Output Frequency: 126 MHz to 154 MHz
Filter: 7 pole cavity pre-LNB filter
Conversion Gain: 65 dB typical
Output 1 dB Compression Point: > +10 dBm
L Band Feedhorn / Downconverter Specifications
L Band Operating Frequency: 1682 MHz to 1710 MHz
L Band Converter Noise Temperature: 70 K typical
Local Oscillator Frequency: Selectable: 1550/1556 MHz
Local Oscillator Stability: ± 2.5 ppm
Oscillator Phase Noise: -100 dBc/Hz at 10 KHz typical
Output Frequency: 126 MHz to 154 MHz
Filter: 7 pole cavity pre-LNB filter
Conversion Gain: 65 dB typical
Output 1 dB Compression Point: > +10 dBm
Electrical, Mechanical, and Environmental Specifications
Input Voltage Frequency: 24V DC at 1A
Input Power/Data Connector: 8 pin MS style connector
Operating Temperature: -40°C to +55°C
X- S- and L- Band IF Outputs: Female Type N
Pressurization Tube Connector: 1/4” compression fitting (supplied)
Size: 26cm in diameter x 58.4cm long
Weight: 13.2 kg
Orbital Systems provides a wide range of antenna feeds for Earth Observation Satellites (EOS) Direct Broadcast (DB), Telemetry, Tracking and Control (TT&C), and general telemetry applications. All Orbital feeds are made of the highest quality materials and are enclosed in a heavy duty aluminium enclosure, powder coated and assembled with stainless steel fasteners to eliminate external corrosion. Orbital feeds are pressurized with temperature and humidity sensors, and built in purge valves to ventilate the feed when excess humidity is detected. STEP Electronics is the Australian and New Zealand distributor of Orbital Systems (now CPI SAT).