Ceyear 4051 Series, User Manual

Page: 163 / 751

4. Operating Instruction
4.2 Advanced operation guide
149
Fig.4.67 Measuring third adjacent channel
Step 9. Set every offset limit of pass/fail:
 Press
【
Meas Setup
】
, [Offset/Limit
▶
], [Offset
▶
], [A], [Limit
▶
], [Rel Limit (Car)]. Set the limit value of
offset A and input -55dB.
 Press 【 Meas Setup 】 , [Offset/Limit ▶ ], [Offset ▶ ], [B], [Limit ▶ ], [Rel Limit (Car)].
 Set the limit value of offset B and input -75dB.
 Press
【
Meas Setup
】
, [Offset/Limit
▶
], [Offset
▶
], [C], [Limit
▶
], [Rel Limit (Car)]. Set the limit value of
offset C and input -55dB.
Step 10. Start limit test:

Press 【 Meas Setup 】 , [More 1/3 ▶ ], [Limit Test ON OFF].
Set limit test as ON state.

In Fig. 4.68, offset A and C passed, and offset B failed. Offset B failed because of its power level
exceeding standard of -75dB designated by us. Bar graph and power marker of channel failed will be
shown in red.