Yes, high output wireless devices or other electronic devices which put out high levels of noise in close proximity will have an effect on communication.
RTR-500, RTR-7 and RTR-5 Series are all designed with a retry function that will resend a communication that was not successfully completed.
Moreover, in the RTR-7 Series, if noise or other trouble is detected before communication is carried out, the base unit will automatically search out a unaffected frequency channel to carry out communication.
Note however that even with these features successful communication can not be guaranteed.
RTR-5 Series, RTR-50, RTR-500 Series, RTR-57C, RTR-57U, RTR-5W, RTR-7 Series
September 02, 2016