RFID transponder tester YDKL-1A

for air traffic controllersaeronauticalportable

Overview
The YDKL-1A ATC Transponder Field Tester is a handheld X-band radio transceiver intended for on-site interrogation and analysis of airborne ATC transponders. It transmits standard A-mode and C-mode interrogation pulses, receives reply signals and decodes aircraft identification and altitude information for display. The unit is battery-powered and uses external antennas for transmission and reception, allowing verification and troubleshooting of transponder operation during maintenance, inspections and ground checks.

Applications

• Field verification of ATC transponder operability
• Maintenance troubleshooting and fault diagnosis
• Pre-flight and post-installation checks at airports and maintenance facilities
• In-service acceptance tests and commissioning
• Training and inspection procedures for ground technicians

Technical specifications

• Model: YDKL-1A
• Function: X-band radio transceiver for ATC transponder interrogation and reply analysis
• Supported modes: A-mode (aircraft code), C-mode (altitude code)
• Code parsing accuracy: ≥98%
• Receive frequency: 1090 ±20 MHz
• Transmit frequency: 1030 ±0.2 MHz
• Transmit power: -20 dBm ±1 dB
• Modulation: 2ASK
• Power supply: 7.4 V 2600 mAh lithium battery; Charging voltage: 20–30 VDC
• Physical dimensions: 200 mm × 110 mm × 60 mm
• Operating temperature: -10°C to +45°C
• Storage temperature: -20°C to +50°C
• Relative humidity: ≤85%