Assistive Technology Professional (ATP) Practice Test

The statement that radio transmission for Electronic Aids to Daily Living (EADLs) is susceptible to interference from other sound frequencies is accurate. Radio transmission relies on electromagnetic waves, and these waves can indeed be affected by various types of interference, including from other radio frequency signals or sound frequencies. This susceptibility can lead to the degradation of the signal quality, causing a loss of communication or functionality in the devices using radio transmission.

Understanding this aspect is essential when designing or utilizing EADLs, as it highlights the need for careful planning of the transmission channels and potential frequency choices to minimize interference. It emphasizes the importance of using devices that are designed to mitigate such interference for reliable operation.

In contrast, the other statements highlight misconceptions about radio transmission. It can effectively penetrate walls, depending on factors like wall material and frequency used. It does not require a wired connection, as it is defined by its wireless capabilities. Lastly, while it can be affected by ceilings, radio waves can often pass through them—again, influenced by the material and frequency used.