A read-write Unsigned32 (0..15 dB) recording the measured signal power loss due to the cable connecting the radio to the main antenna, which the hardware uses to compensate receive and transmit gain. An inaccurate cable-loss value would cause the radio to under- or over-compensate its gain settings, effectively miscalibrating the whole link even if every other setting is correct. For example, replacing a short antenna cable with a much longer run without updating p2mpCableLoss to match the added loss would leave the radio compensating for the old, shorter cable and effectively operating with a hidden power deficit.