• Conventional Systems
• Conventional radios operate on fixed channels and each user group is permanently assigned a fixed frequency or a set of frequencies
• Trunked Systems
• When operating on a trunked radio system, users will hear a “talk permit tone” after keying the mic, and must pause briefly before speaking
• Analog
• Gradual deterioration with increasing static or noise as a user moves out of range
• Digital
• Very sharp drop-off when a user moves out of range
• User may hear some digital sounds like “blips and bleeps”, then other user will suddenly disappear

Graph Description