Ceyear 3943B, Руководство по эксплуатации

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8 Technical indicators and testing methods
8.5 Performance characteristics test
122
8.5.2 Performance test log sheet
Instrument No.: Test Personnel:
Test Condition: Test Date:
S/N Item Unit Standard Requirement Results
1
Design and
Structure
/
The appearance of the instrument is neat and
beautiful, the panel markings are clearly written, the
keys are flexible, and the connectors are convenient
and in place.
2 Function /
Panoramic scan, frequency scan, memory scan and
other multi-mode signal scan detection function
Level field strength measurement function
Whistling tone assisted test function
Remote control function
Record playback function (option)
Horizontal scanning function (option)
Direction finding function (option)
Map function (option)
Computer video leakage information detection and
restoration function (optional)
3 Frequency range /
Lower frequency limit: 9kHz
Upper frequency limit: 8GHz
4
Maximum linear
operating input
level
dBm
-13dBm, 9kHz to 30MHz;
+3dBm, 20MHz ~ 3.6GHz (low distortion mode)
-24dBm, 20MHz ~ 3.6GHz (low noise mode)
-24dBm, 3.6GHz to 8GHz;
5
RF input port
voltage standing
wave ratio
/
＜
2.5, 9 kHz to 5.8 GHz;
＜
4.0, 5.8 GHz to 8 GHz;
6
Display average
noise level
(spectrum
channel)
dBm
≤-125dBm, 9kHz to 100kHz;
≤-151dBm, 100kHz to 1MHz;
≤-155dBm, 1MHz to 20MHz;
≤-154dBm, 20MHz to 80MHz (low noise mode)
≤-160dBm, 80MHz to 1.5GHz (low noise mode)
≤-155dBm, 1.5GHz to 3.6GHz (low noise mode)
≤-128dBm, 20MHz ~ 3.6GHz (low distortion mode)
≤-158dBm, 3.6GHz to 5.8GHz;
≤-154dBm, 5.8GHz to 7.5GHz;
≤-151dBm, 7.5GHz to 8GHz;
7
Noise factor (level
channel)
dB
≤21dB, test frequency 100kHz
≤17dB, test frequency 1MHz
≤17dB, test frequency 11MHz
≤17dB, test frequency 19MHz