Inspect before retuning: CHA HD GUY CLAMP is the two-piece mast ring used to connect the UGS three-line system to larger CFM masts. It creates a deliberate guy point without drilling or improvising attachments on the carbon-fiber tube.
After every deployment
- Inspect both halves, fasteners, guy holes, and carabiners.
- Remove grit before clamping to a mast.
- Store the matched hardware together.
- Replace any bent, cracked, corroded, or missing component.
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
- Do not overtighten into carbon fiber.
- Keep hands clear while a loaded mast moves.
- Lower the mast immediately if the clamp rotates, slips, or separates.
Use the current CHA HD GUY CLAMP instructions.
