MODE 4 Pretrigger

TB 9-4920-358-35

(d) Menu 16 - SOURCE to LOW PWR, RF to - 0.

(8) Select radar test set Menu 16, POWER, and ENTER to perform power

measurement sequence. Press up or down arrow to stop measurement. TI ACCEPT lamp

should be ON.

(9) Hold TI SLS switch in the MOM position, then select Menu 16, SPACING and

take reading of pulse spacing. Spacing will be between 1.85 and 2.15 µs. Release SLS

toggle switch from MOM position. Spacing will be between 2.8 and 3.2 µs.

(10) Set TI MODE switch to 2. Spacing will be between 4.8 and 5.2 µs.

(11) Set TI MODE switch to 3/A. Spacing will be between 7.8 and 8.2 µs.

(12) Set TI MODE switch to C. Spacing will be between 20.8 and 21.2 µs.

(13) Set TI MODE switch to TEST. Spacing will be between 6.3 and 6.7 µs.

b. Adjustments. No adjustments can be made.

14. MODE 4 Pretrigger

a. Performance Check

(1) Connect equipment as shown in figure 5.

Figure 5. MODE 4 pretrigger equipment setup.

NOTE

If special MODE 4 cable is not available, refer to table 5 and

figure 6 for connection of suitable coaxial test leads.