Chronosette-276 (120-1584) Specifications Faxback Doc. # 3772 RADIO Frequency Range.............................................FM: 88-108 MHz AM: 530-1710 MHz CASSETTE PLAYER Tape Speed.......................................................1 7/8 ips Erasing System..............................................Magnetic Erase Recording System...................................................AC Bias GENERAL Power Output.........................................................700mW Speaker..................................................3 1/2 Inch, 8 Ohm Permanent Dynamic Type Dimensions...........................13 5/8 x 4 1/3 x 5 11/16 Inches (HWD) Weight...............................................................4 lbs Power 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-reactive load. Output reference level is 50mW total power. The generator output shall terminate in an IRE loop with the loop pointing toward rear of receiver. Modulation:...................................................1000 Hz, 30% UNIT NOMINAL LIMIT Frequency Coverage kHz 510-1750 520-172 IF kHz 455 +/-3 Antenna Sensitivity for S/N 20 dB at 600 kHz microV/M 500 900 at 1000 kHz microV/M 500 900 at 1400 kHz microV/M 500 900 ACA at reference level at 1000 kHz dB 20 18 AGC figure of merit dB 42 36 IF rejection at 600 kHz dB 34 28 Image rejection at 1400 kHz dB 40 35 Band-width at 6 dB down kHz 6 4-10 Output, at 10% THD at 1000 kHz 5 mV/m, 1000 Hz, 30% Modulation mW 600 500 Distortion at reference output at 1000 Hz, 30% 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 resistive load Reference output level:..............................................50 mW Signal generator impedance:.......................................300 ohms Disconnect antenna cable The signal voltage in this specification or test data is the voltage appearing across the tuner input terminals. Modulation:....................................1000 Hz, 22.5 kHz deviation 1000 Hz 75 kHz (L+R: 92%, Pilot: 8%) Deviation for FM/Stereo UNIT NOMINAL LIMIT 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 Clock Section Measurement Item Nominal Limit Minimum Clock operating voltage on Battery Back-up 7.0V 7.5V Minimum Alarm operating voltage on Battery Back-up 7.0V 7.5V Tape Section Measurement Item Input/Test Tape Nominal Limit Output Power at 1 kHz/channel 10% Distortion 8 ohm MTT-112BN 0.5W 0.45W Maximum 8 ohm MTT-112BN 0.65W 0.6W Signal to Noise 1000Hz MTT-112BN 47 dB 43 dB 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% Note: Nominal specs represent the design specs. All units should be able to approximate these- some will exceed and some might drop slightly below these specs. Limit specs represent the absolute worst condition that still might be considered acceptable: in no case should a unit fail to meet limit specs. *European models must not be able to tune below 87.5 MHz. (br/all-12/27/94)