The RT-1000 VDF system is designed specifically for ATC and VTS applications and complies with ICAO and DFS (Deutsche Flugsicherung) requirements.
The RT-1000 radio direction finder, which has become the benchmark in its class, is also known under the Rohde & Schwarz designation PA030. More than 150 systems are currently in use worldwide.
The RT-1000 VDF is used as an ATC navigation aid that allows controllers on the ground to transmit QDMs to the pilot or verify position reports received from aircraft. Bearing information can also be integrated into a radar screen, which makes it possible to immediately assign radio messages to the right targets on the radar display.
The RT-1000 is also suitable for stationary VTS applications to control the vessel traffic close to the coast.
- High-precision Doppler radio direction finder
- 8.33 kHz channel spacing in the VHF air band available
- Extremely high rotation frequency for fast signal processing
- Compact antenna system for simple installation
- Antenna location independent of controller workstation
- No infrastructure required for remote operation
- Maintenance-friendly modular construction
- RS-232 interface to permit system integration
- Aviation band: 118.000 ... 136.975 MHz
- Marine band: 156.000 ... 174.000 MHz
- Various scanning modes
- Two or more simultaneous channels optionally available
- Multichannel systems up to 24 simultaneous cannels possible
|Frequency Range1||118 to 136.975 MHz / 156 to 174 MHz|
|Operating channels||760 in the airband / 720 in the seaband, 10 channels preselectable|
|Channel spacing||8.33 kHz2 / 25 kHz|
|Type of modulation to be detected||A3E, F3E, A3X (ELT-modulation)|
|System accuracy3||±2° RMS with antenna (±1° with bearing precision improvement option)|
|Sensitivity4||= 6 µV/m (without antenna amplifier)|
|Polarisation error||= 1° (with field vector rotation up to 45°)|
|Cone of silence||approx. 35° referred to the vertical|
AC: 115 / 230 V ±15%; 47 ... 63 Hz
DC: 24 V -10% / +20%; automatic switch-over to DC voltage in case of AC mains failure
Controller unit: max. 15 VA
Receiver unit: max. 10 VA (52 VA with heater)
Storage temperature: -40° ... +60°C
serial V.24 (RS232)
|Bearing display||Response time ≤ 0.3 s|
Digital: 3 digits with 7-segment LED indicator
Bearing reference: QDM, QDR, QUJ, QTE
Updating rate: approx. one indication/s
Dual compass dial: 2 concentrical circles of LED points
Modulation mode: A3E
Monitor output: approx. 500 mW to 4 ... 8 Ω
Line output: 600 Ω, balanced, 0dBm, m = 0.6
|Ground transmitter suppression||with external contact to ground|
|Dimensions / Weight||
9"-desk-top model 3 UH, prepared for rack installation
Dimensions (H x W x D): 132.5 x 448 x 370 mm
|Lateral thrust due to wind||
with constant wind speed
150 km/h approx. 135 N
180 km/h approx. 195 N
(data with lightning rod and mast)
1 Depends on software configuration.
2 option (for VHF air band 118 ... 137 MHz)
3 For undistorted wave reception and sufficient field strength. Measurement is made with continuous vertically polarised signal, without modulation at a constant frequency by changing the angle of incidence in order to exclude site errors. Angle variation is done by rotating the DF antenna on a rotator.
4 System sensitivity for ±1° bearing fluctuations (cable attenuation of less than 2dB between antenna and the receiver).