Show IT complain of harmonics in n Short Wave bands interference in tue the short wave bonds bands frow from harmonies harmonics particularly those of program broadcasting stations has been called to the ai attention of the federal radio commission by amateurs IL K 13 warner secretary of t tho he amerlean america radio relay league has complained to the commission that the situation Is seriously endangered in areas possessing many broadcasting stations harmonies harmonics in the so called 80 me ine ter band are so numerous and strong around new york city that it Is generally impossible for amateurs there to do long distance work in that band at present mr warner declared As aa an example one of our oldest and most skillful amateurs in that area recently counted 27 harmonics in one evening from broadcasting stations between 75 and 85 meters tile stronger ones took up as much room as throe three or four good amateur signals and the frequency of many transmitters was anything but con consent sInt 1 th the e sa same rd e situation exists proportionately tiona tely in other localities anti and in other short wave bands being particularly annoying in the band above meters which ts Is the present for Arfie american rican amateur phones naturally it Is not amateurs alone who are annoyed by tills this interference the harmonics extend throughout the tha short wave spectrum and constitute it a serious situation which must be of concern to 16 till all classes of short wave users Bl members embers of the radio commission declared that the problem of interference and maintenance of transmitter frequency had been perplexing them and the engineers for some time with the improvement of apparatus and the he proposed elimination of a number of broadcasting stations it Is expected vint that interference will be mate materially materiale riall y reduced |