They have extremely low life span, dying 20 seconds from spawning. The guy lines have strain insulators inserted, usually at the top near the attachment point to the mast, to insulate the conductive cable from the mast, preventing the high voltage on the tower from reaching the ground.Įven though they are insulated from the mast the conductive guy cables can act electrically as resonant antennas ( parasitic elements), absorbing and reradiating radio waves from the mast, disturbing the radiation pattern of the antenna.Swarms are released from Swarm Eggs and serve as defenders of Annelid breeding grounds, though soldier also tends to find them in plenty of other places aboard both starships, ready to ambush him. Multiple sets of guys (from 2 to 5) at different levels are used to make the tower rigid against buckling. To keep it upright the mast has tensioned guy wires attached, usually in sets of 3 at 120° angles, which are anchored to the ground usually with concrete anchors. The actual transmitter is usually located in a separate building, which supplies RF power to the tuning hut via a transmission line.

The RF power to drive the antenna is supplied by a impedance matching network, usually housed in an antenna tuning hut near the base of the mast, and the cable supplying the current is simply bolted or brazed to the tower. At its base, the mast is usually mounted on a thick ceramic insulator, which has the compressive strength to support the tower's weight and the dielectric strength to withstand the high voltage applied by the transmitter.

To ensure that the mast acts as a single conductor, the separate structural sections of the mast are connected electrically by copper jumpers.īase-fed masts, the most common type, must be insulated from the ground. To ensure that the tower is a continuous conductor, the tower's structural sections are electrically bonded at the joints by short copper jumpers which are soldered to each side or 'fusion' (arc) welds across the mating flanges. Square lattice masts and tubular masts are also sometimes used. Steel lattice masts of triangular cross-section are the most common type. Most mast radiators are built as guyed masts. The Blosenbergturm, a freestanding tower antenna in Beromünster, Switzerland

System shock 2 transmitter tower code