Hz ▁band ▁( this ▁range ▁was ▁also ▁used ▁by ▁a ▁class ▁of ▁experimental ▁wide band ▁AM ▁stations ▁known ▁as ▁a pe x ▁broad c aster s ). ▁In ▁ 1 9 4 1 , ▁the ▁Yan kee ▁Network , ▁which ▁was ▁already ▁using ▁FM ▁for ▁AM ▁station ▁fe eds , ▁started ▁operating ▁a ▁station , ▁W 3 9 B , ▁in ▁this ▁band ▁from ▁a ▁transmit ter ▁at op ▁Mount ▁Washington , ▁New ▁Ham pshire , ▁the ▁highest ▁point ▁in ▁the ▁n ortheast ▁United ▁States . ▁( St ud ios ▁were ▁in ▁Boston .) ▁In ▁ 1 9 4 5 ▁the ▁United ▁States ▁F CC ▁decided ▁to ▁move ▁FM ▁broad c aster s ▁to ▁the ▁ 8 8 – 1 0 6   M Hz ▁band ▁( l ater ▁extended ▁to ▁ 1 0 8   M Hz ); ▁this ▁made ▁all ▁the ▁existing ▁FM ▁rad ios ▁useless , ▁although ▁conver ters ▁could ▁be ▁purchased . ▁It ▁was ▁even ▁more ▁expensive ▁for ▁broad c aster s ▁to ▁re build ▁their ▁transmit ters ▁to ▁work ▁on ▁the ▁new ▁band . ▁Alt ogether , ▁the ▁change ▁set ▁FM ▁radio ▁back ▁ten ▁years . ▁ ▁The ▁" dev ast ating " ▁change ▁was ▁successfully ▁lo bb ied ▁for ▁( with ▁the ▁F CC ) ▁by ▁R CA , ▁which ▁did ▁not ▁want ▁FM ▁radio ▁to ▁become ▁dominant , ▁although ▁the ▁higher ▁frequencies ▁had ▁fewer ▁inter ference ▁problems . ▁R CA ▁conducted ▁" an ▁organized ▁campaign ▁of ▁mis information ". ▁This ▁protected ▁R CA ' s ▁and