Final answer:
The maximum RF range for a Hybrid Keypad to an Auxiliary Repeater cannot be determined from the information provided, which relates to the signal strengths and distances of radio transmitters in different scenarios.
Step-by-step explanation:
The maximum specified RF range from a Hybrid Keypad to an Auxiliary Repeater is not explicitly provided in the provided information. The details given revolve around different scenarios involving radio transmitters and their signal strengths at various distances and with different power outputs. One example includes a 60-kW radio transmitter's signal strength being compared at various distances, including the adjustment to the transmitter's power. Unfortunately, this information doesn't directly answer the specific question about the RF range between a Hybrid Keypad and an Auxiliary Repeater.