Hope this makes sense. Here are the things I change in my radios. I thought this was a menu choice, but it is not. To mute or attenuate the band you're not using press function low to turn this mode on or off. 009 Note 1 CON.REC Conversation recording OFF/ ON OFF 79 changed to on 111 new in version 2 of firmware. sets mike sensativity. medium is default. I had previously set these to high which had to be done via the computer program before this. 201 RECALL Memory channel recall method ALL/ CURRENT ALL 34 changed to current 202 Note 3 L.OUT Memory channel lockout OFF/ ON OFF 44 haven't locked anything out yet. 403 Note 2 RPT.MOD Repeater mode CROSS/ A-TX/ B-TX CROSS 81 left this in cross mode. 405 Note 2 RPT.ID Repeater ID registration Up to 6 characters 82 set my call on the one in the house. 406 Note 2 ID.TX Repeater ID transmission OFF/ MORSE/ VOICE OFF 82 changed this to morse in the house 501 BRIGHT Display brightness OFF/ 1 ~ 8 8 62 changed this to 4. 507 PF1 PF1 key programmable function value See reference page FR.BAND 66 508 PF2 PF2 key programmable function value See reference page CTRL 66 509 MIC.PF1 Microphone PF1 key programmable function value See reference page A/B 66 this is the delta or Dkey, bottom right. changed to enter 510 MIC.PF2 Microphone PF2 key programmable function value See reference page MR 66 511 MIC.PF3 Microphone PF3 key programmable function value See reference page VFO 66 changed to vgs for recorder, this is the bravo or b key. 512 MIC.PF4 Microphone PF4 key programmable function value See reference page CALL (K/ M4 types) 1750 (E types) 66 this is the a or alpha key, changed to voice. 514 SC.RESM Scan resume method TO/ CO/ SEEK TO 43 changed to co for carrier 516 APO Auto Power Off time OFF/ 30/ 60/ 90/ 120/ 180 (minutes) 180 67 521 AUTO.PM Automatic PM entry OFF/ ON ON 41 changed to off in house This isn't a choice unless you have at least one pm channel defined. 73 Butch WA0VJR Node 3148 Wallace, ks.