"I want to mount a UHF and SHF oscillator that reaches the frequencies of cell phones to interfere with their operation, avoiding their use in the classroom or conference."
In fact, cell phone communications do not occur at a fixed frequency, but by frequency jumps within the operating range depending on the technology. A simple oscillator does not interfere, even if it keeps sweeping the frequency range. To interfere in this type of communication, it is necessary to use a much more complex equipment than a simple oscillator.
