A Precaution

Radio Record, Volume II, Issue 39, 12 April 1929, Page 24

A Precaution

HE pole supports or guy wires attached to the aerial have to be watched, and where a number of steel wires are employed, they must’ be broken at top and bottom with insulators. Some say, ‘"Why the necessity to insulate at both" top~ and bottom?" Well, with an iron or steel pole any induced currents will flow upward through the’ wire and down the central pole if only insulators are used at the

PULL ULL o bottom of each guy wire. More attention is paid to this stay wire insulation on a transmitting aerial than on one employed for reception only. It should always be remembered when erecting the aerial installation to sink a foot, which may consist of several bricks or a ," piece of totra wood on which the aerial." pole stands. Otherwise after one or two windy nights the guy wires will be found to be’ getting’-loose due to the pole working further into the ground. Once a guy wire becomes loose, the pole is in great danger of falling dure ing a storm. OP