Radio navigation

Masters Capital Management offers installation and integration of navigation systems of the following categories:

• Marker radio beacons (MM, OM) - components of course-glide path systems;
• Driving radio beacons (NDB) - ground radio transmitters using non-directional radiation;
• Azimuth radio beacons (VOR) - magnetic bearing systems;
• Rangefinder radio beacons (DME) - a system for determining the distance from an aircraft to a station located on the ground;
• Remote control systems (RCMS);
• Instrumental landing systems (ILS);
• Radio direction finders.

Distance measuring systems DME

DME beacons are ICAO certified radio systems for relatively short range navigation. In these systems, the determination of the distances occurs by determining the delay of the pulse propagated by the transmitter located in the aircraft and returning back after receiving and processing by the station located on the ground, but already at a changed frequency. The DME systems installed in conjunction with the VOR bearing systems provide the ability to accurately determine the position of the aircraft, both in distance and in direction.

Equipment types

The DME 415 and 435 aircraft rangefinder components differ in power and are part of a complete line of equipment belonging to the latest generation of navigation instruments.

• DME 415 - high-precision semiconductor landing system with a power of 100 W and installed in combination with an instrumental landing system;
• DME 435 is an efficient semiconductor ranging system with an operating power of 1 kW. It is used in combination with an omnidirectional localization beacon operating in the VHF range, or a localization beacon using Doppler radio frequencies.

How DME Equipment Works

An aircraft with a DME rangefinder on board sends a coded paired radio signal, designed to be received by a specialized direction finding channel. In response to the received pulses, the bearing sends paired signals in coded form to the ship in the air, which are received at a frequency of 63 MHz. At the same time, a repeater located on the ground can simultaneously process up to 200 signals coming from aircraft, that is, 4800 pulse pairs per second.

The ground station's response is picked up by the on-board receiver, which also decodes the signal. Synchronization systems measure the time that elapsed between the request sent by the transmitter and the response received from the bearing. Based on this information, the rangefinder system determines the distance.