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3.3 PREPARATION
……Tuning TUNE ………………………………………………………
This control is used to tune the receiver.
If the receiver is detuned from the best level, the receiving sensitivity falls, and the targets on a long
range or the small targets on a short range may be overlooked.
In manual tuning, rotate the [TUNE] control clockwise or counterclockwise and adjust so that the target
echoes are the clearest. If no suitable target is present, adjust the control so that the tuning indication
bar-graph at the upper left of the radar display is maximized.
After setting the radar to the TRANSMIT mode, it takes about 10 minutes until the oscillation frequency
of the magnetron is stabilized. Therefore, tune the receiver once again after about 10 minutes.
For automatic tuning, setting “2.TUNE” to “AUTO” in the AUTO Menu. (Refer to page 3 - 5)
……Sensitivity Control GAIN …………………………………………
This control is used to control the radar receiving sensitivity.
Clockwise rotation of the [GAIN] control increases receiving sensitivity and extends the radar
observation range. If the sensitivity is too high, the receiver noise will increase to reduce the contrast of
the targets with the background video and make the targets obscure on the display. To observe densely
crowded targets or the targets on a short range, rotate the [GAIN] control counterclockwise to reduce the
sensitivity so that the targets are easy to observe. Be careful not to overlook small and important targets.
……Display Brilliance Control BRILL ………………………………
This control is used to adjust the brilliance of the entire display.
Clockwise rotation of the [BRILL] control increases the brilliance of the entire display. Adjust the
[BRILL] control to obtain the best-to-see display with optimum brilliance.
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