FrSky R9 STAB OTA is a 900MHz long-range and stabilization receiver with a built-in 3-axis gyroscope and 3-axis accelerometer.

MULTIPLE FLIGHT MODES
FrSky receiver R9 STAB OTA has 8 PWM channels, on traditional fixed-wing models it will support stabilization, automatic level, hover and knife-edge flight modes. For delta wings and V-tail models, it supports stabilization and automatic level flight modes.

ACCESS PROTOCOL
FrSky receiver R9 STAB OTA R9 STAB OTA implements the ACCESS protocol and brings the user improved performance and features. It supports wireless over-the-air firmware updates, making binding to receivers even easier as well as conveniently checking the current receiver firmware version.

CONFIGURATION PARAMETERS
Paired with a FrSky radio transmitter, the parameters can be adjusted conveniently through the LUA script. In addition, parameters may also be adjusted by FreeLink (PC) and FreeLink App (with AirLink S).

FrSky receiver R9 STAB OTA SPECIFICATIONS

Dimension: 45.7*26.3*16.2mm
Weight: 18.6g
Numbers of Channel: 8/16CH (CH16 outputs RSSI)
Operating Voltage: DC 3.5V~10V
Operating Current: [email protected]
Measuring range of gyroscope: ±2000dps
Measuring range of acceleration: ±4g
Compatibility: R9M Lite/R9M/R9M 2019 with ACCST firmware
R9M Lite/R9M Lite Pro/R9M 2019 with ACCESS firmware

FrSky receiver R9 STAB OTA FEATURES

ACCESS protocol and supports OTA functions
900MHz/868MHz long-range with low latency
Built-in 3-axis gyroscope and 3-axis accelerometer
Support S.Port
Supports quick configuration for setting multiple flight modes (quick mode)
Detachable Ipex1 connector antenna
Multiple configuration methods (LUA script and FreeLink)

From: https://www.horusrc.com/en/frsky-r9-stab-ota-long-range-and-stabilization-receiver.html