In this case, though, the FrSky 900MHz system is being used, which has undeniable advantages on the RC link over using 2.4GHz. It requires longer, or loaded, antennas which is the only real disadvantage.
So Rolando needs to come up with a solution for his telemetry link, as 900MHz telemetry does not play nice with the RC running on the same band, in close proximity to each other.
His current options are to use the ham 70cm band, or 2.4GHz WiFi for his telemetry link. The 70cm ham band is by far the superior choice.