
11-2 Making Measurements Using the MA24108A, MA24118A, and MA24126A
11-4 PN: 10585-00020 Rev. C PowerXpert UG
Noise Calculations:
where:
Note The values in the following table are typical and should be used as a reference only.
Table 11-1. Sensor Averaging Table (Continuous Mode, default settings, 20 ms aperture time)
Input Power
(dBm)
Input Power
(mW)
Number of
Averages
Needed for
<
0.20 dB
Noise
Number of
Averages
Needed for
<
0.15 dB
Noise
Number of
Averages
Needed for
<
0.10 dB
Noise
Number of
Averages
Needed for
<
0.05 dB
Noise
Number of
Averages
Needed for
<
0.01 dB
Noise
20100.000000011111
1531.600000011111
1010.000000011111
53.200000011111
01.000000011111
–50.31600001125122
–100.100000011111
–150.031600011111
–200.010000011114
–250.0031600111231
–30 0.0010000 1 2 4 13 303
–35 0.0003160 8 14 31 123 3028
–40 0.0000100 79 139 309 1222 30278
Continuous Average Mode: Scope Mode:
Power = Power level being measured in dBm
Points = 1
Time = Aperture time in milliseconds
N = Number of averages
Power = Power level being measured in dBm
Points = The number of data points on the scope graph
Time = Capture time in milliseconds
N = Number of averages
2
1
10
6
int20
10
1040
1log10)(
NTime
sPo
dBnoise
Power
2
1
10
3
int20
10
108
1log10)(
NTime
sPo
dBnoise
Power
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