What frequencies do Jupiter and the Sun transmit on?
When you tune in a broadcast or shortwave station on your radio you find that the signal occupies only a small region of the radio dial. I could tell you to tune in WWV on 20 MHz, for example, and you would find the signal right there at 20 MHz. Just above and below 20 MHz, the signal from WWV would be absent. This is because radio stations are narrow band transmitters. Any one station occupies only a small chunk of the electromagnetic spectrum. Most non-artificial transmitters of radio waves, like the Sun and Jupiter, send out emissions over broad segments of the electromagnetic spectrum. In fact, they tend to emit at least some energy at every frequency in the entire spectrum, though not evenly. The Sun and Jupiter have complex emission mechanisms that produce signals which may be quite strong over a range of frequencies, usually many MegaHertz wide. These broad emissions can drift, (usually downward), in frequency in a matter of seconds, so they can be moving targets. The answer to
