Radio Shack HANDHELD TRUNKING 20-521, Руководство пользователя

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SPECIFICATIONS
Frequency Coverage: ..... 29–54 MHz (in 5 kHz steps)
108–136.975 MHz (in 12.5 kHz steps)
137–174 MHz (in 5 kHz steps)
406–512 MHz (in 12.5 kHz steps)
806.0000–823.9375 MHz (in 12.5 kHz steps)
851.0000–868.9875 MHz (in 12.5 kHz steps)
896.1125–956.0000 MHz (in 12.5 kHz steps)
Monitor Channels 5
Number of Banks 5
Sensitivity (AM/FM):
NFM: 20 dB S/N at 3 kHz deviation):
29–54 MHz 0.5
µ
V
137–174 MHz 0.4
µ
V
406–512 MHz 0.4
µ
V
806–956 MHz 0.6
µ
V
AM: 20 dB S/N at 60% modulation):
108–136.9875 MHz 1.5
µ
V
Spurious Rejection (at 40.84 MHz) 50 dB
Selectivity:
10 kHz –6 dB
15 kHz –50 dB
IF Rejection (at 162.4 MHz) 80 dB
Channels ............................................................... 150
Operating Temperature .... –4 to 140
°
F (–20 to 60
°
C)
Scan Speed ............................... 50 Channels/Second
Search Speed:
Normal ....................................... 100 Steps/Second
Hypersearch .............................. 300 Steps/Second
Service .............................. 50 Frequencies/Second
Priority Sampling ........................................ 2 Seconds
Delay Time ................................................. 2 Seconds
IF Frequencies 380.7 MHz, 10.85 MHz, and 450 kHz
Antenna Impedance 50 Ohms
Audio Output ................................. 350 mW maximum
Built-in Speaker ...............1
7
/
16
Inches (36 mm) 8 Ohm,
Dynamic Type
Maximum Current Drain .................................. 180 mA