Arducopter: RC Failure quickly

I am using APM2.8 with a 2.4GHz telemetry antenna. My Radio is Flysky FS-T6, it also uses 2.4 GHz frequency. As soon as I start flying my quad, I loose my radio connection. Is this a problem with my Radio or there is an interference between Radio and Telemtry. The radio only works for few meters. I will be grateful if you can help.

What telemetry hardware do you have that is on 2.4Ghz?

It does not have any special brand name on it Just written “FPV Radio Telemetry Air Module”