Build from the base upward: 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.
Deployment sequence
- Inspect the vehicle receiver, tire placement, or structure before loading the mount.
- Seat the mast to the required depth and install every supplied restraint.
- Route coax and wire without pulling the mast sideways.
- Keep the vehicle parked and prevent movement for the entire deployment.
Before raising the antenna
- 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.
Before transmitting
- Confirm every mast section, clamp, mount, adapter, guy line, antenna attachment, coax route, and RF-return conductor.
- Begin RF checks at low power after the final geometry is stable.
- Record the exact configuration so a successful setup can be reproduced.
- 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.
Use the current CHA PORTA-MOUNTS instructions.
Open Porta_Mast_User_Guide_221115.pdf · Open the product page
