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 can beused.The function automatically attenuates more than 3beat tones, tuning signals, etc., even if they are mov-ing.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 noise compo-nents and picks out desired signals which are buriedin noise. The received AF signals are converted todigital signals and then the desired signals are sepa-rated 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 noise reductionlevel.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 audio sig-nal 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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