FrSky TD SR18 2.4GHz/900MHz Dual-Band Tandem Receiver

FrSky's TD SR18 is a dual-band tandem receiver that runs 900MHz and 2.4GHz simultaneously for a redundant, long-range link, with 18 configurable channel ports for heavy-lift and industrial builds.

Key features

• Tandem TD mode on 900MHz and 2.4GHz at once, so a dropout on one band doesn't break the link.
• 18 configurable channel ports (PWM/SBUS/FBUS/S.Port), with CP1 supporting SBUS-in redundancy.
• Dual XT30 power inputs with automatic balancing between two sources, rated up to 30A continuous / 60A instantaneous through the device.
• Triple-antenna design (two 2.4GHz, one 900MHz) on IPEX1 connectors for link diversity.
• Built-in current and voltage sensors plus a basic black-box data recorder for post-flight review.
• Built-in stabiliser with Stabilisation, Auto-Level, Hover and Knife-Edge modes, plus a high-precision altitude and vertical-speed telemetry sensor.
• 4ms race-mode response with telemetry, plus over-the-air firmware updates so the receiver doesn't need to be unbolted for a reflash.

Specifications

• Bands: 2.4GHz + 900MHz (tandem)
• Channels: 18 configurable
• Operating voltage: 4-10 V (2S recommended)
• Operating current: up to 195 mA
• Through-current: 30A continuous / 60A instantaneous
• Power input: dual XT30
• Antenna connector: IPEX1
• Dimensions: 53 x 40 x 16 mm
• Weight: 29.1g