Table 4. Return Loss Measurements (without N-Short)

TB 9-5985-314-24

(8) Connect TI as shown in figure 1 equipment setup.

Press receiver system

frequency to test frequency recorded in 12 c above.

NOTE

Use 15% SEARCH MODE on receiver system.

(9) Establish a 0.0 dB reference on receiver system.

NOTE

Ensure receiver is in measurement mode.

(10) Connect mismatches as listed in table 2 to TI DEVICE UNDER TEST port.

(11) Record receiver system indication in table 4.

Table 4. Return Loss Measurements (without N-Short)

Test

Mismatch

2334-001-1

2334-001-2

2334-001-3

2334-001-4

(12) Repeat technique of (7) through (11) above for remaining test frequencies

recorded in 12 c above.

(13) Add readings from table 3 and table 4 then divide by 2. Return loss in dB

indication will be within the limits specified in table 2 (for secondary reference as stated in

test report plus or minus specifications of SWR bridges).

b. Adjustments. No adjustments can be made.

14. Final Procedure

a. Deenergize and disconnect all equipment and reinstall protective cover on TI.

b. Annotate and affix DA label/form in accordance with TB 750-25.