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7.Warranty
83
7. Warranty
7.1 Troubleshooting
Typical issues that may occur when using your spectrum analyzer:
◼ Power on malfunction
◼ No signal display
◼ Wrong measurement results or poor frequency or amplitude
precision.
1. Power on malfunction
Power on malfunction can include a situation where the screen is
still dark (no display) after switch on.
If the screen is still dark after power on, please check:
1) If the power supply has been connected correctly and it the
power supply voltage range is within the specification.
2) If the power switch has been turned on.
3) If the fan is running, please contact us for service.
2. No signal display
If there is no signal display at any wave band. Please try the
following: set a signal generator at 30 MHz frequency and -20 dBm
power and connect it to the spectrum analyzer RF input connector.
If there is still no signal display, there may be a problem with the
spectrum analyzer hardware circuit. Please contact us for service.
3. Wrong measurement results or poor signal frequency
precision
If the display contents shakes a lot or the frequency readout
exceeds the error range during measurements, check if the signal
source is stable. If so, check if spectrum analyzer reference is
precise. Select internal or external frequency reference according
to measurement conditions: press 【FREQ】→[frequency reference
Internal External].If the frequency is still not precise, then the
spectrum analyzer LO has lost its phase lock, please contact us for
service.
4. Wrong measurement results or poor readout amplitude
precision
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