Pneumatically operated masts offer particularly high comfort. No more tiresome lifting by hand, no more cranking, no more pushing. Simply start the compressor and raise the mast comfortably. The locking mechanism ensures a secure stand even when the pressure is removed. And when lowering the mast, the segments are retracted slowly and in a controlled manner, so the antennas are not exposed to strong vibrations.
This is the only way to make antenna experiments easier or even possible at all - because you can quickly modify an antenna and try something new. The mast can be raised and lowered in a few minutes without any effort, so you can even consider to install a new antenna just for the contest at the weekend. Try this with a hand cranked mast...