Anritsu MS2665C - Page 174

SECTION 6 PERFORMANCE TESTS
6-43
(4) Procedure
Step Procedure
1 Press the spectrum analyzer [Preset] key.
2 Operate All Cal.
3 Terminate the RF Input with a 50 Ω terminator.
4 Set the spectrum analyzer as shown below:
Band ..........................................................0
Start Freq ...................................................1 MHz
Stop Freq .................................................10 MHz
Reference Level .................................... –40 dBm
Attenuator..................................................... 0 dB
RBW......................................................... 30 kHz
VBW .......................................................... 3 kHz
Detection .................................................. Sample
5 Press the [Single] key to execute a single sweep.
6 Press the [→ CF] key to set the frequency at the peak level of the spectrum to the center
frequency.
7 Press the [ Shift ] key and then the [Single] key to execute a continuous sweep.
8 Set the spectrum analyzer as shown below : (Time Domain)
Span.............................................................. 0 Hz
Reference Level .................................. –100 dBm
RBW........................................................... 1 kHz
VBW ............................................................ 1 Hz
9 Press [Time], Storage, Average and Average Count keys in order and set the average count to 16.
10 Press the Continue key to start the averaging, and wait until the 16-time averaging sweep is
completed.
11 Press the [Peak Search] key to execute peak search. At this point, read the level value at the
marker.
12 Confirm that the marker reading is less than the specification, shown in the table on the next page.
13 Repeat steps 4 to 12 while setting Band/Start/Stop Freq from the table on next page so that the
average noise level can be obtained.