Power control solves this by: adjusting each mobile user's transmit power so that all users arrive at the base station with approximately equal received power (within 1-2 dB). The signal from the mobile station that is near the base station may be. The near–far problem or hearability problem is the effect of a strong signal from a near signal source in making it hard for a receiver to hear a weaker signal from a further source due to adjacent-channel interference, co-channel interference, distortion, capture effect, dynamic range limitation. The Near-Far problem in CDMA arises when multiple users transmit signals to a receiver, but these signals arrive with significantly different power levels. Home » Radio & RF technology » this page One of the problems encountered with CDMA is known as the "Near Far" problem.