The RA-4500 Radar Altimeter provides the pilot with highly accurate altitude above-ground-level (AGL) information from 2,000 feet down to zero feet. This real-time system offers an extra measure of operational safety during approaches and night operations. Its patented "anti-rotor-modulation" capability prevents altitude wandering while hovering. The RA-4500 radar altimeter consists of a remote unit and dual antennas for greater accuracy. The ARINC 429 outputs allow seamless integration with other onboard equipment such as flight director systems. The RA-4500 may be purchased with the RAD-40 indicator.
Trustworthy & Reliable
Trustworthy and reliable solution for commercial and non-scheduled rotorcraft looking for an affordable but effective single install solution for their aircraft.
Small & Lightweight
Small, lightweight, and straightforward retrofit install
Interfaces with Displays
Interfaces with installed cockpit displays or optional standalone RAD-40 and RAD-45 display indicators for smooth and accurate LED AGL readings
Robust, Reliable, & Rugged
Robust, reliable, and rugged enclosure designed for use in mission-critical and military environments
Multi-Interface Design
Supports RS-485/422, RS-232, and ARINC 429 for easy-to-install adoption onboard for rotorcraft, fixed-wing, & unmanned aircrafts.
TSO & ETSO Certified
The DAL B-rated RA-4500 radar altimeter is certified to TSO-C87 and ETSO-2C87 and is approved to DO-160E and DO-178B Level C.
RA-4500 FEATURES
- Radar Altimeter System (TSO-C87)
- RA-4500 consists of a remote unit and dual antennas
- Shipset includes RA-4500 system & RAD-40 control
- ARINC 429 Output, EFIS interface
- Version available with FTG-410 Tone Generator
- Gives pilots important audio alerts when operating at low altitude, at night, over water or rough terrain when there are few visual cues to the surface, landscape or flight path
- Provides dependable, accurate above-ground-level (AGL) information
- Valuable for flying search and rescue missions, forestry operations, pipeline maintenance, off shore helicopter ops, helicopter emergency medical services (HEMS), other aero-medical emergency services, border patrol, and electronic news gathering operations
- ARINC 429 output that can be easily coupled with EFIS, flight director systems, and TAWS
- Suited for a broad range of fixed & rotary wing aircraft
- Designed for applications such as helicopter and seaplane operations where accuracy is needed down to zero feet
- Provides precise AGL information from 2500 feet down to ground level
- Lightweight, easy to install with flexible aircraft placement
- Compatible with FreeFlight Systems RAD-40 Radar Altimeter Display
- Optional NVG compatible display
- Meets Precision Equipment output specification of TSO-C87 & ETSO-2C87
- Increased pilot safety
- Software zero calibration
RA-4500 SPECIFICATIONS
| ALTITUDE RANGE: | -20 to 2500 ft | POWER REQUIREMENTS: | 20 - 36 VDC; 400 mA MAX @ 28 VDC |
| ENVIRONMENTAL: | -67°F to +158°F; Alt: 50,000 ft | DIMENSIONS: | 3.06"H x 3.15"W x 6.78"L |
| WEIGHT: | Unit: 1.9 lbs Ant (2): 0.37 lbs | TRANSMITTER POWER: | 100 mW minimum out of transmitter |
| FREQUENCY: | Frequency modulated continuous wave 4.3 GHz center frequency sweep, 4.25 to 4.35 GHz | UPDATE RATE: | 25 times/sec |
| ALTITUDE ACCURACY: | 0 to 100 ft ± 3 ft 100 to 500 ft ± 3% 500 to 2500 ft ± 5% | DISPLAY DISABLE: | Strut switch inputs |
| SELF TEST: | Power-on self test & recurring built-in test | INPUTS: | Strut Switch |
| OUTPUTS: | RS-485/422, RS-232C | FAA: | TSO-C87 Precision Equipment |
| EASA: | ETSO-2C87 | ENVIRONMENTAL: | DO-160E |
| SOFTWARE: | DO-178B, Level C |