Radio noise levels in Antarctica, particularly at McMurdo, with its great density of electrical equipment, have been found to interfere with delicate scientific measurements. Poorly insulated buildings housing electrical equipment, the weak grounding ability of permafrost, power lines, and vibrations from such sources as generators all contribute to the problem. The possibility of building new bases in low-noise areas is considered unlikely. It would be uneconomical, very difficult to build a base which did not cause too much noise of its own, and the problem is not serious outside of the McMurdo-Scott area. The noise problems at Vanda Station, designed with noise levels in mind, (noise from electrical inverters in lab equipment, noise from the wind-powered generator (up to 45 db) support this conclusion.