Radio Shack Desktop Scanner Owner's Manual

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30SpecificationsàSpecificationsFrequency Coverage:Ham ................................................................................................ 29–30 MHz (5.0 kHz Steps)VHF Lo ........................................................................................... 30–50 MHz (5.0 kHz Steps)Ham ................................................................................................ 50–54 MHz (5.0 kHz Steps)Air .................................................................................... 108–136.9875 MHz (12.5 kHz Steps)Government ................................................................................... 137–144 MHz (5 kHz Steps)Ham ............................................................................................... 144–148 MHz (5 kHz Steps)VHF Hi ........................................................................................... 148–174 MHz (5 kHz Steps)Ham/Government ..................................................................... 380–450 MHz (12.5 kHz Steps)UHF Lo ..................................................................................... 450–470 MHz (12.5 kHz Steps)UHF Hi (T) ................................................................................ 470–512 MHz (12.5 kHz Steps)Channels of Operation ................................................200 Channels and 20 Monitor MemoriesSensitivity (20 dB S/N):29–54 MHz ............................................................................................................... 0.5 μV108–136.9875 MHz .................................................................................................. 1.0 μV137–174 MHz ........................................................................................................... 0.5 μV380–512 MHz ........................................................................................................... 0.7 μVSelectivity:±10 kHz ..................................................................................................................... –6 dB±18 kHz ................................................................................................................... –50 dBSpurious Rejection ............................................................................... 50 dB (FM at 154 MHz)Scanning Rate ................................................................................. Up to 25 Channels/SecondSearch Rate .......................................................................................... Up to 50 Steps/SecondDelay Time ................................................................................................................ 2 SecondsIntermediate Frequencies (IF):1st ........................................................................................................................ 10.7 MHz2nd ......................................................................................................................... 455 kHzIF Interference Ratio (10.7 MHz) ................................................................... 70 dB at 154 MHzSquelch Sensitivity:Threshold ................................................................................................. Less than 0.5 μVTight (FM) .................................................................................................... (S+N)/N 25 dBTight (AM) ................................................................................................... (S+N)/N 20 dBAntenna impedance .................................................................................................... 50 Ohms

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