The Top Clamp is used to mount the RF Vision to the top of cellular panel antennas. Some panel mount antenna installations do not easily accommodate back or side mounting of the RF Vision using the standard Universal strap clamp. The Top Clamp has a wide and adjustable clamping width with a large clamp contact area, perfectly suitable for safe and rapid mounting of the RF Vision to the top of panel antennas. The Top Clamp has a “stepped L” back design to accommodate a variety of antenna types and sizes.