Icom IC-R75 Instruction Manual
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Contents
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205 RECEIVE FUNCTIONS■ Optional auto notch functionWhen an optional UT-106 is installed (DSP appearsin the function display), an auto notch function canbe used.The function automatically attenuates more than3 beat tones, tuning signals, etc., even if they aremoving.The auto notch functions in SSB mode only.q Select SSB mode.w Push [ANF] to turn the auto notch function ON.• [ANF] indicator appears.e Push [ANF] again to cancel the function.• [ANF] indicator disappears.Unwanted tonefrequencyDesiredsignal (AF)Desiredsignal (AF)Particular frequencyis attenuatedAuto notch OFF Auto notch ONoptional UT-106■ Optional noise reduction functionWhen an optional UT-106 is installed (DSP appearsin the function display), noise reduction function canbe used.The noise reduction function reduces noisecomponents and picks out desired signals whichare buried in noise. The received AF signals areconverted to digital signals and then the desiredsignals are separated from the noise.q Push [NR] to turn the noise reduction ON.• [NR] indicator appears.w Push [NR] for 2 sec. to enter the noise reductionlevel setting condition.e Rotate the tuning dial to adjust the noisereduction level.r Push [NR] to exit the setting condition.t Push [NR] again to turn the noise reduction OFF.• [NR] indicator disappears.• Noise reduction exampleHigher setting of the [NR] level results in audiosignal masking or distortion. Set the [NR] level formaximum clarity. The noise reduction function isavailable in all modes, including AM and FMmodes.Noise reduction OFF Noise reduction activatedDesiredsignal (CW)Noise componentsoptional UT-106 |
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