SATELLITE APPLICATION NOTES AND WHITE PAPERS

  • Satellite Signal Interference And Carrier ID (CID) Solutions
    Satellite Signal Interference And Carrier ID (CID) Solutions

    The main issue in the quality of service for satellite transmissions, especially in occasional use transmissions and temporary feeder links, is RF interference from sources like “rogue pirate carriers,” and failed or improperly configured equipment. Some of the actions taken to thwart interference include installer and operator training, data sharing, and Carrier Identification (CID). Carrier ID is implemented at the physical level inside the satellite modulator, as well as at the system level where all CID must be identified in one database shared between all satellite operators. This paper provides an explanation of DVB-CID standard, the different types of processes involved, and an overview of the CID receiver from the TeamCast solutions.

  • On-Orbit Satellite RF Measurements
    On-Orbit Satellite RF Measurements

    At the beginning of 2015, around 1200 satellites were fully operational in orbit around the planet, half of which were communication satellites. This number of satellites is expected to expand at a progressive rate within the next years. In order ensure proper performance in the satellite transponders in the payload, on-orbit measurements must be made as a part of maintenance. This application note focuses on satellite post-launch or on-orbit measurements, and monitoring strategies used for satellite functionality checks when running maintenance routines.

  • LTE Location Based Services Technology Introduction
    LTE Location Based Services Technology Introduction

    Global Navigation Satellite System (GNSS) based solutions are highly accurate in most cases, but there are circumstances where they are not as effective, such as in dense urban environments with reduced satellite visibility or indoor areas with low signal levels. LTE Location Based Services (LBS) are designed to determine where a device is located to assist in its effectiveness. This Rohde & Schwarz white paper describes limitations of GNSS systems, as well as LTE cellular based alternatives within 3GPP Release 9.

  • Measuring and Monitoring Satellite Signals
    Measuring and Monitoring Satellite Signals

    Measuring and monitoring the signals in satellite communications systems is as complex as the tasks of those involved in operating such systems. Satellite operators are normally interested in ensuring that transponder use corresponds to the criteria agreed with users in terms of quality and scope, which also includes the detection of any interference signals. Teleport operators are concerned with making the best possible use of the resources with the communications systems, particularly the space segment. This Application Note describes example measurement principles that cover the above-mentioned applications and for which the NRA range of spectrum analyzers from Narda is particularly suitable.

  • A New Generation Of Gallium Nitride (GaN) Based Solid State Power Amplifiers For Satellite Communication
    A New Generation Of Gallium Nitride (GaN) Based Solid State Power Amplifiers For Satellite Communication

    The introduction of Gallium Nitride High Electron Mobility Transistors (GaN HEMT) in early 2000 has left an undeniable mark on the entire satellite communication landscape. It is now possible for the first time since the introduction of the Solid State Microwave Technology to design and manufacture Power Amplifiers that exceed by several orders of magnitude the reliability, linearity, power density and energy efficiency of all existing technologies, being GaAs, LDMOS, or TWT. By C. Damian, VP Product Line Management and Business Development, and D. Gelerman, President and CEO, Advantech Wireless Inc.

More Satellite Application Notes and White Papers

SATELLITE PRODUCTS

Airborne Satellite Monitoring System: FlyingFish™ Airborne Satellite Monitoring System: FlyingFish™

Horizon Technologies offers the new FlyingFish™ Airborne Satellite Monitoring System (ASMS) designed to enable international government bodies to passively monitor satellite communications from airborne monitoring platforms. This lightweight, cost-effective system can monitor Thuraya, and Isat-Pro networks, and can detect and intercept terminal and call activity such as voice, fax, data, and SMS within radio line-of-site.

Ka-band Satellite Simulators: LSS Series Ka-band Satellite Simulators: LSS Series

The LSS series of Ka-band satellite simulators are designed to enable completely portable RF mobile satellite communications systems testing without the need for cabling. They are equipped with dual polarized horn antennas in both the uplink and downlink bands. For each frequency conversion, a separate attenuator provides adjustments of signal levels in order to accommodate receiver sensitivity and range distance.

Quad-Band Satellite Simulator Quad-Band Satellite Simulator

The new quad-band satellite simulator from Tampa Microwave is designed as a compact, easy to use training and evaluation tool for satellite earth terminal applications. This device simulates C, X, and Ka-bands simultaneously at over 300 ft. of operation.

Industry’s Smallest EMI Feedthru Filter Industry’s Smallest EMI Feedthru Filter

Design engineers are constantly trying to minimize space in creating smaller more efficient products.  Corry Micronics’ new Micro Spanner EMI Filter matches the smallest size chassis-mounted feedthrough the industry has ever seen.  The FT40 spanner bushing filter offers a miniature diameter of 0.071”and is the optimal form factor for designs that demand efficiency in a compact footprint.  Corry’s Micro Spanner is offered in a “C” filter configuration and provides capacitance from 10 pF to 5000 pF. 

Spectrum and Signal Analyzer for Satellite Communications: NRA-2500 Spectrum and Signal Analyzer for Satellite Communications: NRA-2500

The NRA-2500 covers the 5 MHz to 2.5 GHz frequency range and is ideal for use as a starter model for satellite monitoring and control systems. It’s optimized for use in D-SNG vehicles, teleports, and in maritime applications.

Integrated Microwave Assemblies (IMAs) Integrated Microwave Assemblies (IMAs)

CPI’s line of integrated microwave assemblies includes attenuators, integrated front ends, receivers, solid state coaxial limiters, solid state switches, waveguide limiters, transmit receiver switches, upconverters, and downconverters. They’re used in both military and commercial markets in radar, satellite, and communications applications. This brochure below provides an overview of their IMA offerings.

High Temperature OCXOs: VN01 and VN03 High Temperature OCXOs: VN01 and VN03

These OCXOs (oven controlled crystal oscillators) cover the 10 to 50 MHz frequency range and are well suited for applications with high temperature operating environments.

9KHz - 26GHz Compact, High Performance Microwave Signal Generators 9KHz - 26GHz Compact, High Performance Microwave Signal Generators

Berkeley Nucleonics offers a diverse line of microwave signal sources and microwave signal generators with a new fast switching option for R&D, radar simulation and testing, local oscillator development, commercial communications (like satellite and microwave link), and microwave component testing applications.

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