REDCON CM651 is just another Spketrum compatible receiver.
Banggood kindly sent me one to give my though about it, so I'd like to share it with you guys.
Firstly, the package should have included:
- 1x REDCON CM651 receiver
- 1x REDCON Satellite
- 1x Bind plug
Well, I said "should" because the binding plug was missing, but I don't think that's a big deal, isn't it?
Now, before we go further, let's check the specs:
- Band: 2.4G
- Channel: 6CH
- Material: Plastic
- Modulation: DSM2/DSMX
- Dimension: 21.6x30.1x12.3mm
- Weight: 10g
- Voltage: 3.5-9.6V
- Receiving Antenna Length: 30mm
Features:- Compatible with all the Spektrum and JR 2.4G transmitter.(Not compatible with Spektrum EU version)
- Compatible with DSM2/DSMX transmitter and expansion transmitter module.
- Compatible with Devo10 ,DX6I , DX18,DX7,DX8,DX9 transmitter.
To be more precise the receiver measures
34.5mm x 22.75mm x 12.9mm and the satellite measures
26mm x 20.4mm x 6mm. The satellite extension cable is
18.5cm long.
Since this is a 6ch receiver with a satellite, I have classified it as an alternative for Spektrum's AR6210 receiver. Both have the same specs, except that the original is 3.75x times expensive.
I have put the receiver thru various tests and I think nobody will be surprised, but the CM651 mimics exactly the same functionalities as the original AR6210, including:
- Full Range Receiver
- Model Match
- Telemetry capable - tested with TM1000
- SmartSafe Failsafe - which by the way I don't like!

- LED Hold Indicator
- Brownout detection
The only feature I miss in this receiver is the cPPM which because very popular, and I do use in all my FPV planes/quadcopters.
My final conclusion is that this receiver deserves it's place on the market, and I will use it as long as I need, instead of an original receiver. At this price, even OrangeRX is not able to compete.
I know about the war Horizon is making against, what they call "counterfeit" products, but as long as they're original receivers are overpriced I'll keep to use the cheap ones!