The S603 Super 6- receiver is a great solution for all model aircraft requiring full range up to six channels. This  receiver is more powerful than AR6200 and AR6210 Receiver, This dual path redundancy, plus the fact each of the two receivers is located in a slightly different location, exposes each to a different RF environment and creates a bulletproof RF link in all conditions.
S600(AR6200) 2.4G 6Ch Receiver for DX6i JR DX7 
 
Type: Full Range Aircraft Receiver
Channels: 6
Modulation: Digital Spread Modulation 2  AND XPLUS
Band: 2.4GHz
Size: 47mmX24mmX14mm
Weight: 12 g
Voltage Range: 3.5-9.6V
 
The  ADVANTAGE(BETTER THAN AR6210):
- Use Special  3bdi Antenna Gain Antenna,   Amplifier of more than 15db Gain insided.
-Stronger anti-interference,Further distances( upto 2km)
-Support PPM channel, for QUADCOPTER
- Extra Satellite is not needed,more convenient.