8 Technical indicators and testing methods
8.5 Performance characteristics test
128
Item
Test
frequency
RBW
Freq Offset
Frequency scale
readings
Test results
312.5Hz
+100kHz
dB
dBc/Hz
-100kHz
dB
dBc/Hz
3.4GHz
31.25Hz
+10kHz
dB
dBc/Hz
-10kHz
dB
dBc/Hz
312.5Hz
+100kHz
dB
dBc/Hz
-100kHz
dB
dBc/Hz
7.499GHz
31.25Hz
+10kHz
dB
dBc/Hz
-10kHz
dB
dBc/Hz
312.5Hz
+100kHz
dB
dBc/Hz
-100kHz
dB
dBc/Hz
8GHz
31.25Hz
+10kHz
dB
dBc/Hz
-10kHz
dB
dBc/Hz
312.5Hz
+100kHz
dB
dBc/Hz
-100kHz
dB
dBc/Hz
Table B.7 (Test of AM demodulation sensitivity)
Item
Test point frequency
Test results
AM demodulation sensitivity
11MHz
1GHz
2GHz
4GHz
Table B.8 (Test of FM demodulation sensitivity)
Item
Test point frequency
Test results
FM demodulation sensitivity
11MHz
1GHz
2GHz
4GHz
Table B.9 (Test of third-order intercept points)
Item
Center
Freq
Att
Contr
ol
Signal
generator
1
frequency
Signal
generat
or 1
power
Signal
generator
2
frequency
Signal
generat
or 2
power
Intermodulati
on of low end
product level
difference
Intermodulati
on of high
end product
level
difference
Third-ord
er
intercept
points IP
3
Third-ord
er
intercept
points
11MHz
--
10.85MHz -17dBm 11.15MHz -17dBm
dB
dB
dBm
75MHz Off 74.85MHz -30dBm 75.15MHz -30dBm
dB
dB
dBm
90MHz Off 89.85MHz -30dBm 90.15MHz -30dBm
dB
dB
dBm
160MH
z
Off
159.85MH
z
-30dBm
160.15MH
z
-30dBm
dB
dB
dBm
220MH
Off 219.85MH -30dBm 220.15MH -30dBm
dB
dB
dBm
Содержание 3943B
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