LTG Elettronica

Home  | Home.html
Company  |Contacts.html
Products  |
ServicesServices.html
 

Model 5501A is a Satellite Payload Emulator. Unit is part of the MBCE system (Multi Band Channel Emulator). This unit emulates two Ku band transponders, and includes an EHF/K band converter for military satellite applications. Full remote control via GPIB (channels selection and gain controls). The two channels are fully independent thanks to two X-band YIG synthesizers.

The Attitude and Heading Reference System was designed to help an operator to point a VSAT antenna installed in the roof of a vehicle. The system is composed of two items: model 9202A sensor assembly (outdoor unit), which contains a GPS receiver, a magnetic compass, and a two-axis accelerometer, and an indoor unit - model 6204A - which provides power supply, signal processing, and includes a power meter designed to operate in the 70 MHz IF band.  System inserts a custom NMEA string after the GPS NMEA update. A custom software decodes the attitude and position information and determines the coordinates to point the antenna.

Model 8601A is a four channel (4 nominal, 4 redundant) pyrotechnics Initiator designed as an EGSE for the HRMCE devices (Holdown Restrain Mechanism Control Electronics) part of numerous satellite antenna release mechanisms. Unit was designed to drive Electro Explosive Devices (EED) type PC23 NASA Standard Model Initiators (NSI). By providing a high-energy, time-controlled pulse, unit fires a standard initiator at the nominal current rating of 5 amps. Constant current design allows for long interconnecting cables between the EGSE and the EED (capability up to 30 vdc).

Model 8503S is a complete test equipment EGSE for position and thermal control of two LAPM (Linear Actuators Pointing Mechanism), each one equipped with two Linear Actuators. Thermal control of four additional channels on both nominal and redundant devices is provided. Each LA is equipped with nominal and redundant stator windings, heaters and thermistors, and one LVDT position sensor. Capability to drive bi-phase and three-phase motors, unipolar, bipolar, or custom programmable step sequences. Batch programming of step sequences, ideally suited for anechoic chamber testing of satellite antennas. Unit is enclosed in a transportable package.

Model 5502A is a Modular UHF Converter test Set. Instrument was designed to be user configured to meet the testing requirements for hand-held and man-pack civil and military transceivers. It enhances the capabilities of the MBCE system down to the UHF. A variety of modules are available: synthesizers, RX and TX interfaces, precision reference oscillators, splitter/combiners, amplifiers.

Aviolink Antenna Tracking System for UAV’s drones and manned aircraft. Composed of a radomized antenna unit, and an Antenna Control Unit. Fully remote controllable. The vehicle to be tracked transmit its GPS position through a subcarrier of the on-board video transmitter. This signal is received by the ACU which computes the required tracking angle using as a reference a GPS installed in the antenna radome. The antenna assembly is of the squared cosecant shaped reflector. Full 360 degrees rotation is assured without cable wrap, thanks to a rotary joint. A LNA is installed in the feed (available in the L and S bands). ACU is also available with steptrack and search functions for applications which does not utilize the GPS information.

LAPME EGSE

HRMCE EGSE

SATELLITE PAYLOAD EMULATOR

MULTIBAND U/D CONVERTER

MODULAR UHF TEST SET

AHRS

AVIOLINK

PDF  483 KB

PDF  225 KB

Download Datasheet DS-104-B.pdf

Download Datasheet DS_103_A.pdf

Model 5908A is part of the MBCE system (Multi Band Channel Emulator). Unit allows to interface the baseband equipment to a payload emulator, providing for the frequency conversion from/to L-band to C, X, K, Ku, Ka, EHF bands by means of two external synthesizers. Full remote control via GPIB (band selection).

Software Control Panel

Vehicle Axis Definitions

AHRS processor and sensor

Modular Design

TX interface

RX interface

NOTICE

This product is no longer available. Informations herein are for reference only. Service, calibration and technical assistance are still supported.

NOTICE

This product is no longer available. Informations herein are for reference only. Service, calibration and technical assistance are still supported.

NOTICE

This product is no longer available. Informations herein are for reference only. Service, calibration and technical assistance are still supported.

ACU and Azimuth Turntable

Display Readouts

X-band YIG Synthesizer

PDF  410 KB

Download Technical Specifications SP-99-C.pdf

ACU and Antenna assembly and radome.

Mainframe with plug-in modules installed

Internal View

Copyright (c) 2011 - 2014

LTG Elettronica S.r.l. - Rome (ITALY)

EC (VAT) - IT06911371000

This product is based on the PC-104 standard for very high compactness and it is built out of Commercial Off The Shelf (COTS) boards. The selection of different boards for I/O, and a high performance ELAN SC520 central processing unit from AMD offers all the typical PC interfaces, a number of analog and digital input/output (I/O channels), two serial synchronous channels for high speed communications and solid state storage. Everything is under control by one of the most reliable hard Real Time Operating Systems (RTOS) available on the market, QNX ©. Software development is made easy and comfortable by the availability of standard tools, such as the Watcom C/C++ compiler, and a POSIX compliant environment with all the familiar UNIX interfaces and libraries.


This project was developed jointly with IMT, in the mainframe of the development of a spaceflight OBC project. Please select this link for more details.

AIRBORNE CONTROL COMPUTER

Airborne General Purpose Control Computer

Download Datasheet DS-106-B.pdf

PDF  348 KB

Model 6304A is a telemetry and telecommands (TM/TC) EGSE. This unit is designed to drive latching type microwave relays. The telecommands are generated by the internal source/sink pulse generator (100ms or 750ms selectable). During the pulse, current, voltage, and timing are monitored for every failure condition. Pulse is routed by an 8x8 matrix, giving a a total of 64 telecommands. Telemetry acquistion is available both in analog mode (16 single-ended channels, 8 termistor channels) having a resolution of 12 bits, both in digital mode (16 single-ended channels for switch closures, 32 digital bi-level inputs). Unit is interfaced with a control computer through a LAN or RS232 interface. Command language is compliant with the SCPI protocol, and is accessible either by a Telnet console or by a TCP Socket. Unit was designed to be interfaced with flight units, so a complete FMECA analysis has been made.

TMTC EGSE

Best view with Safari

Designed with iWeb

Last update: 05/03/2014