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Radio Shack 20-405 - Page 33

Radio Shack 20-405
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33
Additional Info
148.0125-150.7875 MHz ........................................................... (12.5 kHz steps)/FM
150.8-161.995 MHz ........................................................................ (5 kHz steps)/FM
162-174 MHz ............................................................................. (12.5 kHz steps)/FM
380-512 MHz ............................................................................. (12.5 kHz steps)/FM
Sensitivity (S+N)/N 20 dB
29-54 MHz ........................................................................................................ 0.5 uV
87.3-107.9 MHz ((S+N)/N 30 dB) ..................................................................... 1.0 uV
108-136.99166 MHz ......................................................................................... 1.0 uV
137-174 MHz .................................................................................................... 0.5 uV
380-512 MHz .................................................................................................... 0.7 uV
Spurious Rejection (FM @154 MHz) ................................................................ 50 dB
Selectivity
±8 kHz/±17kHz (FM/AM) ....................................................................... -6dB/-50dB
±80kHz/±180kHz (WFM) ........................................................................ -6dB/-50dB
Search Speed ............................................................................. Up to 80 Steps/Sec
Scan Speed ..........................................................................Up to 40 Channels/Sec
Delay Time ................................................................................................ 2 Seconds
IF Frequencies
1st IF ............................................................................................................10.7 MHz
2nd IF ..............................................................................................................455 kHz
IF Interference Ratio (10.7 MHz) ..................................................70 dB at 154 MHz
Squelch Sensitivity
Threshold (FM/AM) ........................................................................ Less than 0.5 uV
Threshold (WFM) ............................................................................ Less than 1.0 uV
Tight (FM) .........................................................................................(S + N)/N 25 dB
Tight (WFM) .......................................................................................(S+N)/N 60 dB
Tight (AM) ..........................................................................................(S+N)/N 20 dB
Antenna Impedance ....................................................................................50 Ohms
Audio Output Power (10% THD) ......................................................0.7 W Nominal
Built-In Speaker............................................................... 3 Inches (77 mm), 8 Ohms
Operating Temperature ....................................................32° to 110°F (0° to 43°C)
Power Requirements ...................................................... 9V AC Adapter (supplied)
................................................................................... 9V DC Adapter (not supplied)
Dimensions (HWD) ...................................................................... 8 ¼ x 6 Ê x 2 È In
.....................................................................................................(210 x 175 x 60 mm)
Weight (without antenna) .................................................................. 24.7 oz (700 g)
Specifications and depictions are subject to change and improvement without notice.
Actual product may vary from the images found in this document.

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