ELT Tester Mini w/ Wi-fi406MHz ELT TesterBT-611M BEACON TesterBEACON SimulatorELT Test equipment

About us

Smith Aerospace Test Systems was founded in 2009 based on facilities and technical staff of Musson-Exim company (part of ex-Musson concern) with goal to develop new aviation test devices for aircraft safety equipment and other devices.

Technical staff being involved in previous developments had good experience in this field.

Here the short list of developments made directly or particularly by our staff:

- Development of ELT operating in 406MHz, 243MHz, 121.5 MHz channels
- Development of professional high precision test equipment for Cospas-Sarsat beacon manufacturers and laboratories
- Development of high-precision simulator of Cospas-Sarsat emergency beacon messages to test the receiver modules of Cospas-Sarsat or Galileo systems
- Development of test equipment for ELT for installation and annual maintenance
- Development of aircraft radio station with pseudorandom operational frequency readjustment
- Development of Airborne AIS Test Set


The company becomes private with several owner shares. The company goals are extended.

Agreement with our US representative was signed and our equipment was offered on US market under US trademark and name - ELTT 124.

The development of Cospas-Sarsat receiver module was started this year. The module with unique technical parameters in sensitivity and resolution was developed for sky-forces of one of NATO east countries.


Development of Cospas-Sarsat monitoring system based on developed Cospas-Sarsat/ Galileo receiver module was started.


Development of Cospas-Sarsat monitoring system is almost completed.

Development of all-purpose aviation tester ARTS-7 was started. The ARTS-7 is capable to measure different parameters of radio stations, ELT parameters, power levels applied to antennas, standing wave ratio of antenna channels, AIS station test and etc.

The generator and frequency meter Pro Lab 5 was developed and passed the field tests.

We performed the engineer support of the type approval tests for ELT Class D of third-party company.


First field tests of ARTS-7 has successfully completed. We supported the development of second generation of Cospas-Sarsat beacons participating the closed polls offered by Cospas-Sarsat.



406 MHz ELT Tester (Test Set)

406 MHz / 243 MHz / 121.5 MHz ELT TESTER is designed to check the avionics emergency locator transmitters (ELT) operating via COSPAS-SARSAT system. It provides accurate testing in volume of annual or maintenance requirements or fast check after ELT's encoding or installation in accordance with USA (FAA Part 91.207), Canada (CAR 571 Appendix G), Europe (CAA/EuroCAE) requirements.

ELT Tester Mini w/ Wi-Fi

ELT Tester Mini w/ W-Fi is third generation device designed to check the avionics emergency locator transmitters (ELT) operating via COSPAS-SARSAT system. Tester is operating with any mobile phone or desktop PC by means of Wi-Fi connection. It is small and light-weight. The ELT tester provides demodulation and complete decoding of Cospas-Sarsat messages. Test results will be displayed in your mobile phone, tablet or PC. All tests will be stored in internal memory for future use.

BT-611M Beacon Tester

BT-611M Beacon Tester is designed for high accuracy and resolution measurements of the full set of beacon signal parameters to check its compliance with the ones, specified in C/S doc. T.001, T.007. The tester is succesfully used for Cospas-Sarsat type approval certification process. It is professional specified test equipment for beacon manufacturers or test laboratories, service centers.

Beacon Simulator BG-105

Beacon Simulator BG-105 is high-precision simulator of Cospas-Sarsat emergency beacon messages. BG-105 allows to simulate up to five simultaneously operating beacons with messages overlay in time. The generator is intended to operate under PC control to provide the customization of main parameters of each simulated beacon on every of five channels by means of terminal program.

Airborne AIS Test Set

Airborne AIS Test Set provide reliable testing of Airborne/Aircraft Automatic Identification System operation. The AIS Test Set is intended for verification of marine and avionics AIS installations. The AIS Tester is specified equipment for radio surveyors, classification societies and administrative authorities. AIS Tester allows to test all type of AIS transponders of any manufacturer.

Sarsat Beacon Monitoring System

Cospas-Sarsat Distress Signal Homer Receiver is specially designed for 406MHz emergency radio beacon signals detection, reception, verifying, decoding and positioning. It is a wide range ground/mobile real-time COSPAS-SARSAT signal decoder designed to locate and verify emergency distress signals sent by any 406MHz ELT in local search area.

Aircraft Radio Test Set

The Aircraft Radio Test Set enables functional and verification testing of MF/HF/VHF airborne radio equipment, emergency locator transmitters as well as airborne AIS stations. Aircraft Radio Test Set is be used to diagnose faulty radio communications equipment while installed in the aircraft. Set fulfills the specific requirements for maintenance, repair and device verification after production.

AIS (AIS-SART) Tester Pro Lab

AIS (AIS-SART) Tester Pro Lab is designed for laboratories and manufactures of AIS and AIS-SARTs. The AIS Test Set is intended for verification AIS and AIS-SART parameters in real time with saving all received data. AIS Tester Pro Lab is extended version of AIS Tester M1, have the same features but allows to perform deep analysis of AIS and AIS-SART functions in real time.