Optimus 740 owner manual Specifications, Radio

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SPECIFICATIONS

RADIO

 

FM

AM

Frequency Range

 

88–108 MHz

530–1710 kHz

 

IF Rejection

 

60 dB

60 dB

Image Rejection

 

20 dB

30 dB

Selectivity

 

25 dB

20 dB

Signal-to-Noise (S/N) Ratio

 

60 dB

30 dB

Stereo Separation

 

22 dB

 

 

 

 

 

 

 

 

 

Usable Sensitivity

 

6 μV

1300 μV/m

CASSETTE PLAYER

 

 

 

 

 

 

Cassette Mechanism

 

Auto-Stop

Tape Speed

 

 

17/8 ips

Wow and Flutter

 

0.35%

 

Signal-to-Noise Ratio

 

 

40 dB

Separation

 

 

40 dB

Frequency Response (±3 dB)

 

100–8000 Hz

GENERAL

 

 

 

 

 

 

Power Requirements

 

120V AC 60 Hz

Speaker Size

 

5-Inch Speaker

Speaker Output Impedance

 

 

4 Ohms

Headphones (Stereo) Impedance

 

16–32 Ohms

Power Output

1.5 Watts per Channel

Dimensions (HWD)

 

 

 

 

 

 

Main Unit

95/8 ¥ 10 5/8 ¥ 9 1/4 Inches (244 ¥ 270 ¥ 235 mm)

Speaker

95/8 ¥ 7 1/16 ¥ 9 1/4 Inches (244 ¥ 180 ¥ 235 mm)

Weight

 

13 lb (5.9 kg)

Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.

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Contents System Features Contents Connecting AN Auxiliary Audio Source Connecting SpeakersConnecting AN External Antenna ConnectionsListening Safely Connecting PowerUsing Headphones Adjusting Balance Using the Frequency EqualizerBasic Operation Turning ON/OFF the SystemUsing the Mute Button Using E-BASSRadio Operation Loading a Cassette Tape Cassette Player OperationPlaying a Cassette Tape Normal PlayConsecutive Play Fast Forward/RewindRecording from the Radio Recording on a Cassette TapeDubbing a Cassette Tape Preventing Accidental Erasure Tape Care TipsErasing a Cassette Tape Restoring Tape Tension and Sound QualityRecording from AN Auxiliary Audio Source Using AN Auxiliary Audio SourceListening to AN Auxiliary Audio Source Care and Maintenance FCC Wants YOU to Know Cleaning the TAPE- Handling PartsRadio SpecificationsFm Page 18 Wednesday, July 14, 1999 556 PM Fm Page 19 Wednesday, July 14, 1999 556 PM RadioShack Division of Tandy Corporation Fort Worth, Texas