PF1 - SPKR + Phones / Phones only toggle PF2 - CQ fast QSK (QRQ) toggle I use M1 and M2 for CW memories and M3 & M4 for additional macros: M3 tap for QRO (100W); M3 hold for QRP (5W) M4 tap for DX split (+2 kHz) 73- Nick, WA5BDU