This also works on an internet signal.
In: Technology
To add: There are also integrated circuits and filters designed to alter the frequency in fractional steps in effort to “follow” the signal, and filters that suppress frequencies outside of a predefined spectrum, such as static. These filters, nor the broadcast are absolute. Much like a crossover network, at the broadcast or passband frequency exists a slope. It’s not constant or cut and dry.
Digital systems are more forgiving of a signal they are already connected to and have higher standards for establishing a connection to a new one. Think of it like a bad phone call, if it’s good and then gets staticky you give it a bit to get better, where it it’s blaring static from the start you hang up right away.
Digital radios don’t play the signal unless it meets a certain quality threshold, but it will allow dips below that threshold without turning off the sound.
WiFi will keep attempting to send and receive packets on an connected network and wait longer when getting partial answers than when it is trying to make a new connection.
If you are using the seek or scan function there is a minimum signal threshold for the radio to stop on a certain frequency. It is designed to not stop on scratchy radio stations. In other words, “It’s a feature!”
It only becomes an issue when your traveling takes you to an area where the signal is weak. It will always stay on a station once it is tuned in, no matter how weak it gets, but it won’t tune back in due to the way it is designed.
If you could type in a specific frequency, or if your radio allows you to advance from one frequency to the next (88.1, 88.3, 88.5, etc.) using the “tune” function, then you can avoid this problem.
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