Recommendations and tips for optimum transmission

There should be a “free line of sight” between transmitting and receiving antennas.
To avoid overloading the receiver, observe a minimum distance of 5 m between transmitting and receiving antennas.
Observe a minimum distance of 50 cm between the transmitting antenna and metal objects (such as cross members or reinforced-concrete walls).
When using a multi-channel system: Set all transmitters of your multi-channel system to intermodulation-free frequencies.