legraph ▁Station , ▁but ▁it ▁had ▁closed ▁by ▁ 1 8 1 6 . ▁The ▁building ▁then ▁revert ed ▁to ▁the ▁cust ody ▁of ▁the ▁land owner ▁- ▁the ▁Duke ▁of ▁Le eds . ▁In ▁ 1 8 3 1 ▁the ▁site ▁was ▁taken ▁over ▁by ▁the ▁Coast guard ▁as ▁a ▁subs idi ary ▁to ▁the ▁main ▁station ▁situated ▁on ▁the ▁G arrison . ▁In ▁ 1 9 0 3 ▁a ▁wireless ▁m ast ▁and ▁receiving ▁office ▁were ▁built ▁nearby , ▁and ▁in ▁ 1 9 0 8 ▁a ▁te legraph ▁house ▁was ▁ere cted ▁on ▁the ▁tower ' s ▁roof . ▁ ▁The ▁wider ▁site ▁was ▁developed ▁into ▁a ▁modern ▁radio ▁transm itting ▁and ▁communic ations ▁site ▁by ▁the ▁late - C 2 0 . ▁The ▁tower ▁is ▁now ▁a ▁private ▁residence . ▁It ▁was ▁at ▁this ▁tower ▁about ▁ 1 8 9 8 ▁that ▁G ug li el mo ▁Mar con i ▁heard ▁wireless ▁signals ▁transm itted ▁from ▁P orth c urn o , ▁a ▁distance ▁of ▁ 3 0 ▁miles . ▁It ▁was ▁used ▁by ▁Radio ▁Sc illy ▁for ▁broadcast ing . ▁ ▁Note : ▁To ▁strength en ▁Sc illy ’ s ▁def ences ▁Major ▁Daniel ▁L yman ▁proposed ▁the ▁construction ▁of ▁three ▁gun ▁to wers ▁in ▁ 1 8 0 3 , ▁each ▁armed ▁with ▁a ▁ 3 2 - p ound er ▁car ron ade ▁on ▁top . ▁ ▁The ▁presence ▁of ▁three ▁to wers ▁on ▁St ▁Mary ’ s , ▁in ▁the ▁heart ▁of ▁the ▁G arrison