Aircraft Landing System PRMG-76U/PRMG-5
Ground equipment of PRMG-76U / PRMG-5 instrumental landing system of decimetric range is intended to provide approach and landing for an aircraft, equipped with airborne navigation system RSBN-2S or its modifications, around-the-clock under ICAO CAT I-II / CAT I, respectively, in manual, semiautomatic and automatic mode.
MAIN FEATURES:
- Automatic Redundancy backup
- Local and remote control of radio beacons
- Automatic switch to stand-by circuit in a case of main circuit failure
- Continuous tolerance testing
- Remote check and control
- High reliability
- The systems can be used at a field and temporary airdromes.
- PRMG-76U is recommended to use at stationary airdrome in remote control mode made from control tower. It provides landing under ICAO CAT II conditions if transmitting antennas and check point masts are installed on the foundation.
- High mobility, small time of deployment, and universal autonomous power supply make PRMG-5 indispensable when there is the need of frequent moving from one airdrome to another.
- Glide-path radio beacon (GP)
- Localizer (LLZ)
- DME repeater station (DR), collocated with LLZ in control room of distance-measuring localizer beacon (DME / LLZ)
- Telecontrol & telesignalling equipment (TC-TS)
| PRMG-76U | PRMG-5 | |
Localizer (LLZ) | ||
| Antenna system, elements in array | 20 | 10 |
| Polarization | horizontal | |
| Range, not less | 45km | |
| Coverage zone, horizontal plane | ±15° | |
| Coverage zone, vertical plane | 0.85°-7° | |
| Frequency range | 905.1 - 932.4 MHz | |
| Frequency stability | ± 0.005 % | |
| Number of channels | 40 | |
| Established limits of directional sector | 3° - 6° | |
| Deviation from established on-course plane position at the beginning of runway, not more - for LLZ Cat I | ± 10.5 m | |
| - for LLZ Cat II | ± 7.5 m | |
| Glide-path radio beacon (GP) | ||
| Antenna system | "Zero area" | |
| Polarization | horizontal | |
| Range, not less | 18 км | |
| Coverage zone, horizontal plane | ± 8° | |
| Coverage zone, vertical plane | 0.3 - 1.75 | |
| Frequency range | 939.6 - 966.9 MHz | |
| Frequency stability | ± 0.005 % | |
| Number of channels | 40 | |
| Established limits of glide slope angle | 2° - 4° | |
| Deviation from established glide-path plane position, not more | ± 0.075 | |
| DME Repeater | ||
| Antenna system | 4-element array | |
| Range, not less | 45 km | 50 km |
| Coverage zone, horizontal / vertical plane | as for LLZ | |
| Frequency range / Frequency stability / Number of channels | as for GP | |
| Limits of ZERO POINT setting from DME repeater location | 0 - 5 km | |
| Distance calculation error by aircraft, not more | 250 m | |
| Overall Dimensions | ||
| LLZ (GP) operating room, m | m 4,2 x 2,42 x 2,8 | 4,36x2,05x2,24 |
| LLZ (GP) cabinet, m | m 1,60 x 0,93 x 0,68 | 1,23x0,60x0,51 |
| Electric power station, m | m 1,40 x 1,43 x 1,64 | 2,63x1,72x1,84 |
| Operating Conditions | ||
| Temperature | -50 to +50°C | |
| Wind Load | up to 50 m/s | |
| Relative humidity | up to 98% at +35°C | |
| Power Supply | ||
| Circuit, three- phase | 380V, 50Hz | |
| Autonomous (petrol electric power station) / Accumulators | 220В, 50MHz /+24V | |
| Consumed power, not more ~ Total, including life support facilities, per each beacon, not more ~ Basic LLZ / GP equipment, not more | 2,5 kVA 600 / 270 VA | |
Reliability
MTBF of each radio beacon, not less 3 500 hrs
Aircraft Landing System PRMG-76U/PRMG-5|Airport Radio Beaco
Source:AT Electronic and Communication International Ltd
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