Review Details

FrSky R9 MX – Enhanced R9 Series ACCESS OTA Long-Range Receivers

FrSky R9 MX – Enhanced R9 Series ACCESS OTA Long-Range Receivers

Product Review (submitted on January 16, 2021):
This receiver is great, it didn't came with the latest firmware but the upgrade was so easy with the OTA feature. As it has inverted S.Port, i could easily connect it to a F4 flight controller using the F.Port protocol. The antenna is sturdy so no problems with my quad crashes, and the range is so good as with the Access protocol you can set the RSSI low alarm al 35.