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that an overload has occurred indeed during this process, if the burrs
suddenly appears and suddenly be gone, or the background noise suddenly
decreases, etc.
In the case of complex electromagnetic environments such as in the
middle of city, rooftops, or when using outdoor antennas, you can manually
turn the 10-20dB attenuator on and turn off the amplifier to improve the
ability to resist overload. Just remember to set it back to auto in normal
handheld scenario.
Sometimes the noise floor may rise up to -70dBm indoors. Usually there is
real interference, but not overload. You can try turning off the lights, staying
away from electrical devices, or going outdoors. Indoor interference is often
caused by shoddy LED lights.
6.7 The shell is hot while working, is it normal?
Many high linear power amplifiers and mixers are integrated inside the
instrument. High linearity means high current and high energy consumption.
Meanwhile, the high-speed digital circuits also needs enormous power
resources, these factors would lead to heat generation too. The minimum
power consumption of KC908 is about 10 watts, and typical power
consumption is 12W, while the peak power consumption is 15W. When
charging the battery, an additional 4W power will be dissipated apart from the
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