Mastsystem's EXA141 Series of lightweight telescoping masts are designed to meet the most demanding requirements of mobile communication systems, yet still fill the expectations of an economical budget. The masts are also applicable to such areas as defense, the police, geodetic surveying, radio and TV broadcasting, emergency communication operations and temporary site illumination. All EX141/EXA141/EXL141 masts use a carbon fiber composite base tube with a 141 mm diameter, which leverages the carbon fiber's light weight while maximizing its excellent strength.

Every mast and guy assembly detail are designed to resist external forces and to ensure quick and safe operation. The masts perform excellently in both arctic and tropical areas as well as desert environments. The EXA141 Series are "hand-crank" erecting types, but can also be optionally extended electrically. Mounting kits for vehicles and shelters, as well as a variety of other ancillary equipment are also available.

All EXA141 Series mast sections are manufactured from pulltruded carbon fiber composite tubes with light metal and stainless steel fittings. The mast's composite fiber tubes move inside each other on keyways that prevent the individual sections from turning and also keep the mast itself torsionally stiff. They are also rotatable 360 degrees and can be locked in any position. Mechanical stops prevent the sections from being disengaged during extension. Mast sections are a standard green color with black fittings. Other colors are available on request.

Every mast is supplied with a robust reinforced transit bag containing a set of field deployment accessories that are designed to expedite mast set up and tear down time, even in the harshest environment. The user-friendly design of the guy rope reels and tensioners makes the task of tensioning the guys and plumbing the mast simple, rapid, and straight forward, while the highly tempered ground stakes are suitable for repeated use in a wide variety of ground conditions including permafrost. All accessories needed for the mast operation are stored in separate bags.

The EX/EXA/EXL141 series of masts meet the environmental requirements of MIL-STD 810.