Show THE HOY HOME VIM RADIO how to make and use it cl bya cays HYATT VERRILL copyright Copy richt by pw 13 heft X counterpoise before leaving the subject of aerials it may be well to call attention to the device known as a counterpoise and which for pending fending Is far superior to using a ground while with small sets the advantages gained by a counterpoise lit in receiving do not pay for the trouble of installing the device this Is because the counterpoise while iii biffle adding to the sharpness of tuning with a receiving set and therefore alding aiding in cutting out interference will also cut down the strength of the sounds sound received therefore with a crystal set where amplification Is not possible sible the device Is practically valueless wh erens with a vacuum tube sot set with two or more steps of amplification the counterpoise will prove a F aj very distinct advantage many people consider this device a complicated and difficult affair but in reality it Is ns as simple it not simpler than an aerial A form of counterpoise consists of several wires extending tan fan as shown in the figures but a single wire will often give c excellent results and the only wity way to determine the best beet of wires to use Is by usually it Is desirable to place helow below hes bes butow Is by no means mean s es essential as it may ly be run fun in the opposite direction from the and still work exactly as well for the dovice device has little or no connection with the aerial in tact fact its action Is more like that of a condenser except that it increases radiated energy whereas a condenser has a very small amount of radiation it must also ahlo be borne in mind that with a counterpoise no ground wire Is required the leadin lead in from the counterpoise being connected with the set at the spot where the ground wire Is usually connected in setting up a it should be just as well and as thoroughly thorough lk insulated as the aerial fig 22 and the leadin lead load in wire from it should be kept at some distance from the aerial leadin lead in ln to obviate losses by induction between the two the most desirable place for a counterpoise Is about three foot above the earth but us its this height Is usually inconvenient not only on account of it being an in i obstruction but because it may be injured by people or animals or may I 1 be burled buried under snow in winter it la Is better to raise it about six feet or just high enough so people may pasi I 1 beneath it stout posts with guy wires I 1 are arc the best supports whereas it if the device Is placed on the root roof the supports lup ports may be chimneys walls walla etc it minced on a root roof beneath an aerial leave till nil the space possible between tho the two either cither by keeping the counterpoise low or ri raising the aerial where this thin Is not convenient the counterpoise may be run in another direction instead of being placed below the it erlat wires |