>I desperately need some information on how to use the Mark V >with the Alpha 99 Amp. I tried using the TX Ground connection >to key the amp, but the Mark V is too fast for the amp 73s Roy The QSK connection I used here for my MPs and AL1200/QSK was off of the BAND DATA switch ... so give your manual a close look and see if the Mark V also uses this. 73 Billy AA4NU