A.1

• Power Setting: 0xE5
• Set the DUT in Modulated TX
• Center Frequency: 2480 MHz
• Span: 10 MHz

RBW	VBW	Detector	Meas. Name	Power	Comments
1 MHz	1 MHz	Max Peak + Max Hold	PEAK	18.9
1 MHz	10 Hz	Average + Max Hold	AVERAGE	16.6	The power will be lower for AVERAGE than for PEAK

• Choose a spectrum analyzer that encompasses both the peak of the fundamental emission and the band-edge emission under investigation (for example, 2483.5 MHz, edge in Figure 13).
Figure 13. Band-Edge Setup

RBW	VBW	Detector	Meas. Name	Power	Comments
1% of total span	>= RBW (100 KHz)	Max Peak + Max Hold	TOP PEAK	13.0	RBW - never less than 30 kHz. Several sweeps in peak hold mode
1% of total span	>= RBW (100 KHz)	Max Peak + Max Hold	Band-Edge PEAK	-33.0	RBW - never less than 30 kHz. Several sweeps in peak hold mode
TOP PEAK - Band Edge PEAK ->			DELTA	46.0	Delta will normally be > 40dB

• Record the peak levels of the fundamental emission and the relevant band edge emission. The band edge peak is measured at the highest point to the right of the 2483.5 MHz line, which is typically on this line. However in some cases there may be a higher peak nearby. Observe the stored trace and measure the amplitude delta between the top peak of the fundamental and the peak of the band-edge emission.
• Note a lower RBW, even as low as 30 KHz, may be required to see the band-edge peak.
• When the DELTA value is calculated, use it to check how the PEAK and Average values are compared to their respective limits.