Motorola APX 7500 05 - 2.2.2.5 Setting the Initial Control Head ID; Figure 2-26. APX 7500 Front View; Figure 2-27. Radio Display with Current Control Head ID; Figure 2-28. APX 7500 Front View - Mode Knob

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2-24 Standard Configurations: Radio Mounting
2.2.2.5 Setting the Initial Control Head ID
The Front Panel Programming (FPP) mode allows you to define which control head in a Multi Control
Head system becomes control head number 1-4.
Set the control head ID number for each attached head the first time Multi Control Head is used.
1. Press the power button to power off the radio.
2. Press and hold left-most menu and the orange button on the control head simultaneously.
Figure 2-26. APX 7500 Front View
3. Press the power button to power on the control head. The head will power on into FPP mode
and display the current control head ID number:
Figure 2-27. Radio Display with Current Control Head ID
4. Turn the Mode knob to change the control head’s ID number.
Figure 2-28. APX 7500 Front View – Mode Knob
5. Repeat steps 1 to 4 above to set the ID of the remaining control heads.
NOTE: In Multiple Control Head (MCH) installations, the yellow ignition sense wire must be
connected to the head assigned ID # 1.
O5
Left-most
Menu Button
Power Button
Emergency
Button
CH ID#
1
O5
Mode Knob