Agilent Technologies 8935 series e6380a manual Swept Insertion Loss Setups

Overview of theTest Set’s Built-In Tools

Using the RF Tools Program

4.Position the cursor at Max expected loss in dBand enter the greatest loss expected through your device. The insertion loss will be displayed from 0 dB to the value entered in this field. Therefore, if the Max expected loss in dBis set higher than the measured insertion loss, the plot will not display any test data. Enter the appropriate value.

5.Position the cursor at DUPLEX OUT level in dBm and enter the appropriate value. Unless you are measuring loss through a power sensitive device, the default level should work correctly.

6.Press k1 (Begin Tst) to begin the test.

Figure 4-11 Swept Insertion Loss Setups

Calibration Setup Measurement Setup

	AUDIO OUT	AUDIO IN		BASEBAND OUT		DATA	P A R A L L E L P O R T 1 5	S E R I A L 9
		HI		LO
							P A R A L L E L P O R T 1 6	S E R I A L 1 0
				I	Q	IN
ANALOG	SCOPE	EXT SCOPE	VIDEO					S E R I A L 1 1
MODULATION	MONITOR	TRIG IN	OUT
IN	OUT

8935

ANT IN	DUPLEX OUT	16X		FRAME	EVEN	TRIGGER
		CHIP CLOCK CHIP CLOCK							RF IN/OUT
		19.6608	1.2288	CLOCK	SECOND	QUALIFIER	10 MHz	EXT
		MHz OUT	MHz OUT	OUT	SYNC IN	IN	REF OUT	REF IN

	AUDIO OUT	AUDIO IN		BASEBAND OUT		DATA	P A R A L L E L P O R T 1 5	S E R I A L 9
		HI		LO
							P A R A L L E L P O R T 1 6	S E R I A L 1 0
				I	Q	IN
ANALOG	SCOPE	EXT SCOPE	VIDEO					S E R I A L 1 1
MODULATION	MONITOR	TRIG IN	OUT
IN	OUT

8935

ANT IN	DUPLEX OUT	16X		FRAME	EVEN	TRIGGER
		CHIP CLOCK CHIP CLOCK							RF IN/OUT
		19.6608	1.2288	CLOCK	SECOND	QUALIFIER	10 MHz	EXT
		MHz OUT	MHz OUT	OUT	SYNC IN	IN	REF OUT	REF IN

ANT IN

6dB Pad

Cal Cable

sweptg.eps

DUPLEX OUT

6dB Pad

ANT IN

6dB Pad

Cal Cable

DUPLEX OUT

6dB Pad

Test Cable

or Device

Barrel

Connector

7.A calibration setup screen appears with a diagram of the necessary connections (Figure 4-11). This test requires two 6-dB pads. The pads are put on the ANT IN and DUPLEX OUT ports on the Test Set to reduce impedance mismatch error at these ports. A reference level is obtained by connecting a short calibration cable between the pads on the DUPLEX OUT an ANT IN ports. Setup the hardware, then press k1 (Proceed) or the knob to continue.

8.After the Test Set has finished calibrating, a second diagram similar to the Measurement Setup of Figure 4-11appears on the screen. Connect the test cable or device to be tested between the calibration cable and one of the pads. Press k1 (Proceed) or the knob to continue.

90 Chapter 4

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