Band Switching via D/MR button on microphone: Effect: D/MR button on microphone performs band switching rather than D/MR function. 1-5) as in above mod 6) Remove the jumper on Pad R4067 7) skip above step 7 8) continue with step 8 above Attributed: Tony Pelliccio, KD1NR system@garlic.sbs.com Band Switching or Tone Burst via D/MR button on microphone (5200): Effect: change function of D/MR button on mike. This is based on information from Yaesu in Japan. The functions of pin 5 (the microphone button) can be altered by changing jumpers in the control head. To find these jumpers, see the section on packet radio in the ordinary instruction book. Control Head Jumper No Pin 5 Function Closed Jumper Marked By X 1 2 3 4 5 D/MR X Band X 1750Hz Tone Burst X X Main band Busy Out X Sub band Busy Out X Call Channel X X Main / Sub band busy out - When open SQL = 5 Volt DC Closed SQL = 0 Volt DC [ed - I'm not sure what this means since I don't own a 5200] Attributed: John Newgas, G7LTQ jnewgas@cix.compulink.co.uk, g7ltq@g7ltq.ampr.org