In this Videomaker article, the topic is wireless devices (most notably wireless microphones). They are extremely useful in the sense of reducing workspace clutter while filming, enabling one to do more things with less space. However, each wireless device uses a specific frequency to send its data back to the receiving unit, and if more than one wireless device is using this frequency in the same area, they get “tangled up”, so to speak, and neither one works. This becomes a problem with older wireless devices, as certain wireless frequencies are deemed “useless” or “outdated”, and they are used for Internet, cell phones, and other uses, so anything that uses this frequency gets tons of feedback and interference. The only way to fix this is to either buy a new wireless device or get a refund from the company that made the device, if they offer one. It’s inconvenient, but it’s the only way to free up the air for people who need or want to pay for it.
-Chris Balcer