Mechanical safety comes before SWR:
The CHA CFM-34 puts a wire antenna more than 34 feet above the site while collapsing to 23 1/2 inches. At 2 lb 9 oz, it gives portable, HOA, and field operators practical height without committing the property or vehicle to a permanent tower.
Stop-work conditions
- Keep the full mast and antenna fall zone away from people, power lines, structures, and traffic.
- Reduce height or lower the system when wind or wire tension makes the mast unstable.
- Stay within the 1 lb published load.
- Do not erect or lower the mast without controlling every attached wire and feed line.
Control wind, leverage, and movement
- The published mast load is 1 lb; include every suspended feedpoint, wire, carabiner, and vertical pull in that decision.
- Use a documented 3/8-24 base mount and stabilize the complete footprint before raising the antenna.
- Compare the 34-foot footprint with CFM-16 before assuming taller is always easier or better.
Recover without creating the next failure
- Lower sections from the bottom upward.
- Clean and dry every section before storage.
- Inspect the base stud, collars, tip ring, and carbon-fiber tubes for damage or contamination.
- Stop using any section that slips, cracks, splinters, or no longer locks predictably.
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 CFM-34 instructions.
