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The 900MHz R9 MM-OTA receiver implements the ACCESS protocol and brings the user improved performance and features. The R9 MM-OTA supports wireless firmware updates over the air making binding to receivers even easier. As well as the convenience of checking the current receiver firmware version. The R9 MM’s compact form factor design is also carried over to the OTA version, and the R9 MM-OTA supports inverted S.Port as well.
This receiver works compatible with the new release R9M Lite Pro module,and the other 900MHz modules will also be supported when the ACCESS firmware is available.
SPECIFICATIONS
- Dimension: 16*10*2.8mm (L×W×H)
- Weight: 0.7g (without antenna)
- Number of Channels:
Non-LBT Version: 4/16CH (Telemetry)
LBT Version: 4/16CH (Telemetry) / 4/16CH (No Telemetry) - Operating Voltage Range: DC 3.5V – 10V
- Operating Current: 100mA@5V
- Operating Range: Up to 10km or above
- Compatibility: R9 series 900MHz module (ACCESS protocol)
FEATURES
- 915MHz (Non-LBT Version)/ 868MHz (LBT Version)
- Mini size and super lightweight
- Supports OTA firmware update
- Supports firmware version check
- S.Port enabled and support telemetry data transmission
(Support F.Port, download firmware to support the function) - Inverted S.Port enabled
- Low latency and high precision
- With RSSI output in SBUS
- Battery voltage detection supported
- Detachable Ipex connector antenna
ITGuy
Reviewed in the United States on March 28, 2024
I’ve purchased these before, not from Amazon, but seems to be missing parts.There use to be connectors that was packaged with them and use to come with two end caps for the antenna.Frsky is slipping and I think I will switch to another brand if they can’t get the simple things correct.EDIT:Don’t work and I am past the return window with amazon. Frsky support ignores all emails. I’m now looking for a new brand to support, as they clearly do not care!
Customer
Reviewed in the United States on May 14, 2023
Range test was further than my others. Great for the price here on Amazon. Buy buy buy!!
Tommy
Reviewed in the United States on August 26, 2022
Used it for Emax TinyHawk 3 Drone
B. Williamson
Reviewed in the United States on July 14, 2022
Worked like a champ after updating firmware to use ACCST on both the R9M and R9MM
DronePatroneStudio
Reviewed in the United States on October 21, 2022
Item is as pictured. Meaning, it's old stock with the outdated antenna as pictured. The new ones come with the hard T mount antenna. Works great with the Express LRS / ELRS firmware. The MM version will work with an F4 flight controller, BTW.
Dustin
Reviewed in the United States on August 9, 2021
No fport firmware will not wire up too confusing all there different ports fport Ibus sport sbus what wires you supposed to connect cant tell instructions are worst I have ever seen . No instructions for CLI inside betaflight
jnngill
Reviewed in the United States on February 27, 2021
OTA is a little misleading. but other wise its a good receiver.
Customer
Reviewed in the United States on August 3, 2020
Tested to 4km, no problems Great product
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