Question: In UTRA Repeater conformance testing, as per 3GPP specifications, what is the primary purpose of setting the spreading factor of the signal generator to 256 in the initial test setup?
Option 1: To simulate a high-capacity user environment for stress testing
Option 2: To ensure compatibility with legacy base station equipment
Option 3: To accurately assess the Repeater's performance at the defined nominal output power, utilizing a standardized signal format
Option 4: To optimize the Repeater's gain settings for maximum coverage area
Explanation: Setting the spreading factor to 256 aligns with Test Model 3 (as described in TS25.141), which is used for defining the signal to be tested on. This specific setting allows for a standardized evaluation of the Repeater's performance, particularly in measuring the peak code domain error value at its nominal output power, as declared by the manufacturer. This ensures a consistent and reliable assessment of the Repeater's conformance to specifications under defined conditions.