As an electronics technician, I use math in understanding the concepts and the theory behind the electronic circuits. An example of mathematics that could be used as an electronics technician and a communicator would be to figure out the resident frequency of an antenna using a known formula.

A dipole antenna is an antenna that will resonate on a specific operating frequency. When the antenna is resonant, it has better sending and receiving properties. [We use a formula to calculate how long the wire in the antenna should be to optimize for the frequency that's being used.] We also use a formula for radar, which is used to figure out the range of a target on the radar display. The radar signal propagates at the speed of light and the time to travel to the object [being detected], then reflect off of it must be calculated. This can be expressed as a constant in microseconds [and can be used] for determining ranges in nautical miles. [This answers the question, how far away is the object being detected.]