7 Channel Weatheradio
(120-0249) Technical Specifications Faxback Doc. # 59534
Measurement Conditions
Power Source ...................................... DC Supply 9V +/- 0.2V
Reference Power Output Level ............................... 50mV (0.63V)
Audio Output Load ............................................... 16 Ohms
Audio Modulation ................................ 1000 Hz +/- 3.3 kHz Dev
Parameters Nominal Limit
Receiver Sensitivity @ 12dB Sinad or 20 dB S/N
Frequency CH1: 162.400 MHz 0.3 microV 0.6 microV
CH4: 162.475 MHz 0.3 microV 0.6 microV
CH7: 162.550 MHz 0.3 microV 0.6 microV
-3dB Limiting Sensitivity
Frequency CH1: 162.400 MHz 0.16 microV 0.3 microV
CH4: 162.475 MHz 0.16 microV 0.3 microV
CH7: 162.550 MHz 0.16 microV 0.3 microV
Fips Code Sensitivity (@ +/- 3kHz
Deviation, 90 successful rate)
Frequency CH1: 162.400 MHz 0.3 microV 0.6 microV
CH4: 162.475 MHz 0.3 microV 0.6 microV
CH7: 162.550 MHz 0.3 microV 0.6 microV
Channel Selectivity +/- 25kHz
ELA Standard RS204 60 dB 45 dB
Spurious Rejection 45 dB 40 dB
Signal to Noise Ratio 40 dB 35 dB
De-Emphasis, 1kHz=0dB @ 2kHz 6 kHz 6 kHz +/- 2
Dual Tone Detect Range 1.3/2.3 kHz 1.2/2.4 kHz
Alert Deviation Sensitivy
12 dB Sinad/10 micrV 1.0 kHz 1.2 kHz
Alert Sound Frequency 800/860 Hz N/A
Alert Sound Level @ 10cm Away 83 dB SPL 73 dB SPL
Audio Maximum Output Power 250 mW 200 mW
Audio 10% THD Output Power 200 mW 150 mW
Audio THD 3.0% 7%
DC Current Drain
Volume - min/50 mW Output 30/87 mA 40/100 mA
Alert Stand-by 30 mA 40 mA
Alert Sound on 100 mA 130 mA
Low Battery Indicator 7.3 V 7.3 +/- 0.3V
Audio Muting 45 dB 50 dB
(CC 05/03/2000)
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