Mechanical safety comes before SWR:
CHA PORTA-MOUNTS give the PORTA-MAST—and, through the documented reducer path, the CFM-34HD—a controlled base. Wheel and Hitch Mounts serve temporary vehicle sites; Top and Side Mounts serve bolted semi-permanent installations.
Stop-work conditions
- Do not use a temporary vehicle mount on a moving vehicle.
- Confirm the structure or receiver can carry the mast, antenna, leverage, and wind load.
- Keep the fall zone and public space controlled.
- Lower the system before moving a vehicle or releasing a tire, hitch, or structural fastener.
Control wind, leverage, and movement
- Use Hitch Mount with a compatible stationary 2 in receiver.
- Use Top Mount only on a sound horizontal structure and Side Mount only on a sound vertical structure.
- For CFM-34HD, add the complete current 3-inch reducer/sleeve system instead of dropping the narrower mast into a PORTA-MOUNT.
Recover without creating the next failure
- Inspect welds, plates, sleeves, fasteners, and coating after transport and use.
- Remove grit before inserting a mast or reducer.
- Replace bent or missing retention hardware.
- Store mount-specific fasteners with the matching mount.
Guying can stabilize a documented installation, but it does not increase the published load or make an unapproved support chain safe.
Use the current CHA PORTA-MOUNTS instructions.
Open Porta_Mast_User_Guide_221115.pdf · Open the product page
