Purple Satellite dish in dreams
A large fixed receiver — long-distance listening pointed deliberately at a particular sky.
How purple changes the reading
Purple colour places the symbol between hot and cool — a reading that has both calm and intensity at once. The dream often uses purple for symbols that do not fit the usual categories cleanly. Take the reading more seriously than you would otherwise; the colour is asking you to.
The base reading of Satellite dish
A satellite dish in a dream is the dream's image of deliberate long-distance listening. The dish is aimed; it does not receive everything, it receives what it was set to receive. The dream brings the dish when you have, consciously or not, oriented yourself toward a particular channel — a person, a culture, a source of information — and are receiving from it steadily. A dish aligned and receiving cleanly is the dream telling you the orientation is good. A dish blown out of alignment is the dream noting that the source you were tuned to has been lost and the incoming material is now noise.