Inspect before retuning: 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.
After every deployment
- 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.
When something moves or the SWR changes
- Stop transmitting and make the structure safe.
- Inspect the base and work upward through every loaded interface.
- Correct mechanical movement, moisture, damage, and feed-line strain before changing antenna tuning.
- Rebuild the documented geometry and restart at low power.
Do not return to service
- 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.
Use the current CHA PORTA-MOUNTS instructions.
Open Porta_Mast_User_Guide_221115.pdf · Open the product page
