You can of course use the RM2200D for self-operated DJ shows, where the presenter operates the mixing desk herself. In such cases it is often required to use the RM2200D in Off Air Mode. A typical situation would be like this: You have an audio source (for instance playing music) running On Air but at the same time you want record a telephone call from a listener to a recording device.

To achieve this, you need to use the two program busses of the RM2200D simultaneously: Program bus 1 carries the On Air mix going out to the transmitter, program bus 2 is used to record your piece and is routed to the recording system. However, you have to make sure that all signals used for recording do not interfere with the On Air signal!. Therefore, you must assign any signal destined for Off Air recording to program bus 2 only.

Generally, you can use the keys Program 1 and Program 2 on top of each fader channel freely to assign this channel to any program bus. But this also means, that a fader channel can be assigned to both busses at once - which is exactly the situation you would like to prevent for Off Air operation. Therefore, the RM2200D provides a special operation mode. In this mode, the two program keys toggle each other in such a way, that any key press changes the program bus assignment alternating from program bus 1 to program bus 2. However, it is impossible to assign a fader channel to both program busses at the same time.

To activate this mode, put the RM2200D software into Configuration Mode and select the tab Mod options. Check the checkbox Off-Air function (toggle PGM1/2). When you are finished, upload the Config to the DSP frame to activate it. (see also Mod. Options - Configuring Module Options)