"PTT" push to talk

For Motorola Talkabout T6200c,T5428,T5628,T5728,T5500,T5720,T5920,T6500 . . .
For Motorola GP88,GP68,GP300,GP3188 . . .
For Yaesu VX-1R,2R,5R,60R,150,160 . . .
For Kenwood TH-G71A,F6,F7 . . .
For Icom ,Standard IC-T90,W32,T7 . . .
For Linton LT2188,LT2288,LT3688,LT6288 . . .