KO KR-420XT Short Receiver

The KO Propo KR-420XT Short Receiver is designed for use with the EX-NEXT transmitter, bringing the latest XT RF technology that progresses beyond FHSS. It supports two RF modes: XT Advanced Mode for one-way, ultra-fast response, and XT Telemetry Mode for two-way communications when telemetry is required.

Engineered for installations where space is at a premium, the KR-420XT achieves an ultra-compact footprint. While maintaining the same floor area as the popular KR-418FH, the connector mounting height is reduced, resulting in a smaller overall volume. A total of five ports provide connections for servos or ESCs, and unused ports can be utilised to supply power to accessories such as a cooling fan or a lap counting transponder. The receiver case also allows an antenna pipe to be mounted directly, simplifying installation and reducing hardware.

Key Features

• XT RF system with selectable modes: XT Advanced (one-way, fastest response) and XT Telemetry (two-way)
• Ultra-compact case with reduced connector height and smaller overall volume
• Five connection ports for servo/ESC, with spare ports usable for accessory power
• Direct antenna pipe mounting to the receiver case
• Black shield antenna and gold-plated terminals
• Telemetry compatible, Serial control compatible, HCS compatible
• Fail-safe function equipped

Specifications

• Dimensions: 30.9 × 18.4 × 13.5 mm
• Weight: 5.4 g
• Operating voltage: 4.8–7.4 V
• Frequency: 2.4 GHz (XT)
• Channels: PWM 4CH, Serial 8ID

Suggested Compatibility

• KO Propo EX-NEXT transmitters (manufacturer note)
• Manufacturer notes it is not intended for EX-LDT, EX-RR or EX-2
• Telemetry function is supported with KO Propo serial-compatible products; receiver power voltage telemetry is available