Figure 2. VSWR, insertion loss, and isolation equipment setup

TB 9-4931-534-35

SYNTHESIZED SIGNAL GENERATOR

POINTS A AND B ARE USED IN ISOLATOR PERFORMANCE CHECK.

SELECT DESIRED DIRECTIONAL COUPLER FOR FREQUENCY RANGE FROM TABLE 1.

Figure 2. VSWR, insertion loss, and isolation equipment setup - waveguide up to 18 GHz.

(2) Adjust synthesized signal generator frequency to first frequency test point

recorded in 7 a above and RF output level to +5 dBm.

(3) Establish a reference on receiver system at test frequency.

(4) Press receiver system MEAS-REF pushbutton.

(5) Disconnect short from equipment setup (fig. 2).

(6) Connect TI to directional coupler and record receiver system readout indication

as return loss.