Does a radio power supply need a ground?

Yes, a power supply for a radio must have a ground when it is powered from the high voltage mains supply.

Are base stations harmful?

This holds true whether the base station is part of a 2G (GSM), a 3G, a 4G (LTE) or a 5G network. The WHO states: “From all evidence accumulated so far, no adverse short- or long-term health effects have been shown to occur from the RF signals produced by base stations.” (WHO fact sheet “Base stations and wireless technologies”)

Do mobile phones need a base station?

Mobile phones and other mobile devices require a network of base stations in order to function. The base station antennas transmit and receive RF (radio frequency) signals, or radio waves, to and from mobile phones near the base station. Without these radio waves, mobile communications would not be possible.

Is it safe to use a negative rail on a radio?

When a radio is connected to a power supply and the negative rail is connected to the power supply's ground internally, the equipment would be safe. If a live wire comes adrift and contacts the chassis, the protective fuse will blow, minimizing the risk of electrocution.

Does the power supply have a ground connection?

The power supply of a modern radio apparently has a ground connection, even though it uses a standard AC 3rd prong ground power cable. The radio is fed by the 13.8V DC connector, which does not have an earth.

How much exposure can a radio base station have?

On the ground, in houses, and other places where people reside, the exposure levels from radio base stations are normally below 1 percent of the limits. Only in the close vicinity of the antennas can the exposure limits sometimes be exceeded.