background image

Frequency Coverage                MHz       *87-109                 88-108 
IF                                MHz       10.7                    +/-0.3 
IHF Usable Sensitivity at 90 MHz  microV    8                           16 
                       at 98 MHz  microV    8                           16 
                       at 106 MHz microV    8                           16 
 
Sensitivity for 
50 dB S/N              at 90 MHz  microV    10                          20 
                       at 98 MHz  microV    10                          20 
                       at 106 MHz microV    10                          20 
S/N Ratio at 1 mV input           dB        55                          45 
 
FM Limiting, 
3 dB,                  at 98 MHz  microV    20                          50 
IF rejection           at 98 MHz  dB        60                          50 
Image rejection        at 106 MHz dB        26                          20 
 
ACA 100 microV 
+/-400 kHz 75 KHz deviation       dB        20                          15 
 
Audio THD, 1000 Hz, 
75 kHz deviation (1mV)            %         2                            4 
 
Dial Calibration       at 88 MHz  kHz       -                      +/-1000 
                       at 100 MHz kHz       -                      +/-1000 
                       at 108 MHz kHz       -                      +/-1000 
 
Output Power at 10% THD,1000 Hz, 98 MHz 
 
    75 kHz deviation              mW        600                        500 
 
Maximum outpout power 1 mW, at 98 MHz, 1000 Hz, 
 
    75 kHz deviation              mW        700                        600 
 
Capture ratio at 1 mV, 
 
    98 MHz deviation              dB        5                           10 
 
Separation 98 MHz 1 mW 100 Hz     dB        25                          15 
 
                  1 kHz           dB        30                          25 
                  10 kHz          dB        20                          12 
 
Indicator 
Sensitivity 98 MHz                microV    8                           30 

Содержание Chronosette-276

Страница 1: ...nutes before it automatically shuts off Snooze Timer temporarily silences the buzzer radio or tape alarm so it sounds again in about 7 minutes Back Up Battery keeps the clock and alarm running for up...

Страница 2: ...AC power cord If the BATTERY SENTINEL indicator lights change the battery If the display flashes after an AC power failure the battery is too low to accurately run the clock Replace the battery and re...

Страница 3: ...ette 276 for improved FM reception Your local Radio Shack store has a complete line of external antennas to choose from To connect an external FM antenna to the Chronosette 276 slightly loosen the 2 s...

Страница 4: ...ndicator lights when you receive an FM stereo station To improve reception for weak FM radio stations set AM FM FM STEREO to FM The sound changes from stereo to monaural mono but the sound quality imp...

Страница 5: ...STOP EJECT to open the cassette compartment door 3 Load the cassette with its open edge up and the full reel to the right The side facing you is the side that plays 4 Close the cassette compartment do...

Страница 6: ...tape plays for the set time period and automatically turns off To manually stop the tape press STOP EJECT When the tape reaches the end the Chronosette 276 automatically stops and releases the tape h...

Страница 7: ...M band First record a short segment and play it back to listen for the beating sound If you hear the beat set BEAT CUT to its other position and resume recording 6 Press STOP EJECT to stop recording R...

Страница 8: ...times Follow these steps to set ALARM 1 1 Press and hold down ALARM SET The display shows the current alarm time setting and the AM PM indicator 2 While holding down ALARM SET 1 press the appropriate...

Страница 9: ...manually silence the alarm before the 59 minutes pass as follows Buzzer Alarm set OFF RADIO ALARM to OFF and then back to ALARM Radio Alarm press RADIO OFF Tape Player press RADIO OFF The alarm will...

Страница 10: ...tabs does not prevent a bulk eraser from erasing the tape Erasing a Cassette Tape If you no longer want a recording you can record over it or erase it To record over a cassette tape record as usual T...

Страница 11: ...After you put on the earphones adjust the volume to a comfortable listening level Do not increase the volume once you have established a comfortable listening level Over time your ears adapt to the vo...

Страница 12: ...tly and carefully Dropping it can damage circuit boards and cases and can cause the Chronosette 276 to work improperly Keep the Chronosette 276 away from excessive dust and dirt which can cause premat...

Страница 13: ...Requirements AC 120 volts 60Hz 10W 220 240 volts 50 Hz for European Australian Models Room temperature 77 degrees F 25 degrees C AM BAND Speaker impedance 8 ohms Output readings are taken across a non...

Страница 14: ...Modulation at 5 mV m 2 5 Whistle modulation of 2nd or 3rd harmonic at 1 100mVm 3 15 Dial Calibration at 540 kHz kHz 20 at 1000 kHz kHz 50 at 1600 kHz kHz 80 FM BAND Speaker impedance 8 ohms Use resist...

Страница 15: ...on at 98 MHz dB 60 50 Image rejection at 106 MHz dB 26 20 ACA 100 microV 400 kHz 75 KHz deviation dB 20 15 Audio THD 1000 Hz 75 kHz deviation 1mV 2 4 Dial Calibration at 88 MHz kHz 1000 at 100 MHz kHz...

Страница 16: ...Distortion 1000Hz MTT 118BN 3 5 Erase Ratio 1000Hz BLANK TAPE 50 dB 45 dB Channel Separation 1000Hz MTT 141N 36 dB 32 dB Hum and Noise Volume Minimum 2 5mV 5mV Wow Flutter 3000Hz MTT 111N 0 2 0 40 No...

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