SATELLITE APPLICATION NOTES AND WHITE PAPERS

  • Providing Narrowband IoT Coverage With Low Earth Orbit Satellites

    This article describes the modeling of a SATCOM link, specifically the use case of using a satellite overlay to extend service continuity to IoT devices in a poorly covered rural area.

  • Demystifying Over-The-Air Testing – Important Antenna Parameters, Test System Setup, And Calibration

    The step from conducted measurements to OTA testing changes the measurement requirements to a certain degree, so users must have a basic understanding of antennas and antenna measurements.

  • 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. 

  • On-Orbit Satellite RF Measurements

    To ensure proper performance in satellite transponders in the payload, on-orbit measurements must be made as part of maintenance. This app 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

    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.

SATELLITE PRODUCTS

L3 Narda-MITEQ’s SBL series of fiber optic link components are designed to supply high performance, “plug & play” fiber optic link components for linear and some digital applications. The SBT-4000 fiber optic transmitter and the SBR-4000 fiber optic receiver can transport RF signals within the frequency range of 10 MHz to 4 GHz, over tens of kilometers of standard single mode optical fiber.

AtlanTecRF offers a new compact, lightweight and high efficiency drone payload satellite simulators with operation in either the Ka-band (30 GHz uplink and 20 GHz downlink) or Ku-band (14 GHz uplink and 11 GHz downlink) with options for both circular and linear polarization. This Drone Satellite Series (DSS) offers battery powered, cable-less RF test solutions for military and other Unmanned Airborne Vehicle (UAV) applications.

The JFW Model 50MS-367 is a 4 X 4 blocking matrix switch designed to operate in the DC-40 GHz frequency range, and is ideally suited for SATCOM and wireless 5G signal routing applications. 

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.

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.

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.

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. 

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.

SATELLITE NEWS