Short radio range can result from several environmental or equipment-related factors. Buildings, concrete structures, hills, trees, and other obstacles can weaken radio signals. Low battery levels, incorrect settings, unsuitable antennas, or interference can also affect communication performance. For 4G PoC radios, cellular network coverage is an important factor. If communication is consistently weaker than expected, check the battery, antenna, selected channel or group, and radio configuration first. Try testing the radios in a more open area to determine whether the environment is causing the problem. For commercial systems, coverage testing can help identify equipment, configuration, or infrastructure requirements.
