Smart tensioning guy ropes

This general guide will show you how to effectively set the required length of the anchoring rope, tension it, and secure it for long-term installation.

The procedure is suitable both for the installation of simple masts and for large antenna systems with lattice towers.

  1. Unscrew the turnbuckle to the maximum length.
  2. Install the turnbuckle to the anchor.
  3. Thread the rope through the upper eye/thimble.
  4. Install the Loop Cleat Tensioner to its free end. Use CL234 for ropes 6 to 11 mm (1/4" to 1/2") or CL223 for ropes 3 to 6 mm (1/8" to 1/4").
  5. Set the required length of the anchor rope or adjust its length gradually. Advantageously, you can use a cleat tensioner, and its easy sliding on the rope. The procedure will differ depending on the method of installation of the mast/tower and guy ropes (lifting the folded mast from the ground, gradual extension of the telescopic mast, installation of the mast in parts, ...).
  6. In the working position (before the final tensioning), the tensioning part should look something like this:
  7. After completing the adjustment, tension the rope with a cleat tensioner.
  8. Install the rope clamp and tighten it firmly:
  9. You can now release the cleat tensioner and tie at least 2 safety knots (Double Half-hitch):
  10. Tighten the knots firmly and secure the free end of the rope with cable tape (for ropes up to approx. 5 mm - 3/16 ") ropes or install a second securing clamp.
  11. Tighten the guy rope to the required tension using a turnbuckle:
  12. Tighten the rope clamps firmly. If you use tensioners with lock nuts (like the jaw-jaw version on the picture), tighten these nuts as well.
  13. Before you begin, please read our articles Basic Instructions to Guy with Synthetic Ropes and Recommended Installation Procedure.



  • New Mastrant discussion group 10. 11. 2021

    We have a new discussion group (https://groups.io/g/mastrant). Feel free to join. Here you can discuss with others anything related to Mastrant products - what you don't know, or what you want to share with others, so you can help them.

  • Rope tensioning clamp, Triple pulleys, Tensioning reel 5. 10. 2021

    What brings the autumn new to our e-shop? 

    Rope tensioning clamp ATC12 suitable for Mastrant ropes with a diameter of 4 to 14 mm.

    Triple pulleys APUS##W very useful for a hoist up to 1:6 ratio.

    Tensioning reel CLPT771 allows guylines on portable masts to be quickly and easily tensioned and released. The rope is also stored on the reel. Ideal for antenna masts. 

    For all the other super functions of our goods, please visit the e-shop

  • Smooth carabiners & Rope cleats 12. 4. 2021

    Would it be handy to have something for quick attach or release with a hand? The carabiners AHOS## with a smooth surface might be the right choice. There are perfect for field work!

    Also, we do have different sizes of rope cleats ACTP## in stock now. 

    Please, visit our e-shop.

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