Anritsu MX269018A - Crossta Alk

Chapter 4 Performance Test
4-12
4.3.4 Crosstalk
(1) Measuring instrument for tests
Only MS2830A
(2) Setups
Remove the cables from AF Input and AF Output of the MS2830A.
(3) Test target standards
Table 4.3.4-1 Standard
Standard Condition
> 80 dB 18 to 28°C
(4) Test Procedure
Table 4.3.4-2 Frequency Setting
No. U8903A Output Frequency (Hz)
1 400
2 1000
1. Press
.
2. Press
(Preset) to initialize the MS2830A.
3. Set the MS2830A as below.
Waveform : Tones
Tone1 Freq: 400 Hz
Tone1 Level: 3500 mV rms
Output Type: Unbal.
Output Impedance: 50

4. Set Output Tone1 of the MS2830A to On to turn On the signal
output.
5. Set the Mode of the MS2830A to RX measurement mode.
6. Set the MS2830A as below.
● High Pass Filter: Off
● Low Pass Filter: Off
● Weighting: Off
7. Set AF Input of the MS2830A as below.
● Input Type: Unbal.
● Input Range: 5 V p
8. Press
to measure.
9. Record the measurement results of AF Level rms of the MS2830A.
10. Calculate crosstalk (AF Output

AF Input) in the next formula.
Crosstalk = –20 × log (measured value/3500)