PRO-57 Scanner
(200-0126) Specifications Faxback Doc. # 19708
Programmable Scanner
FREQUENCY COVERAGE:
VHF-Lo............................................30-50 MHz (in 5kHz steps)
Ham...............................................50-54 MHz (in 5kHz steps)
Government......................................138-144 MHz (in 5kHz steps)
Ham.............................................144-148 MHz (in 5kHz steps)
VHF-Hi..........................................148-174 MHz (in 5kHz steps)
Ham/Government...............................380-450 MHz (in 12.5kHz steps)
UHF-Lo.......................................450-470 MHz (in 12.5kHz steps)
UHF-Hi.......................................470-512 MHz (in 12.5kHz steps)
CHANNELS OF OPERATION:......................................Any 10 channels
SENSITIVITY:
20 dB Signal-to-Noise ratio at 3 kHz Deviation:
30 - 54 mHz..................................................1.0 microV
138 -174 MHz..................................................1.0 microV
380 -512 MHz..................................................1.0 microV
SPURIOUS REJECTION:
30- 54 MHz..................................................50 dB at 40MHz
138-174 MHz.................................................50 dB at 120MHz
380-512 MHz...................................................Not specified
SELECTIVITY:
ñ10 kHz..............................................................-6 dB
ñ20 kHz.............................................................-50 dB
IF REJECTION:
10.7 MHz...................................................50 dB at 154 MHz
SCANNING RATE............................................... 8 Channels/sec
DELAY TIME........................................................2 seconds
MODULATION ACCEPTANCE.....................................plus/minus 8 kHz
IF FREQUENCIES.........................................10.7 MHz and 455 kHz
FILTERS....................................................1 crystal filter
...........................................................1 ceramic filter
SQUELCH SENSITIVITY.........................Threshold: Less than 1.0 microV
.......................................................Tight: (S+N)/N 25 dB
ANTENNA IMPEDANCE...................................................50 ohms
AUDIO POWER...............................................1.0 watts maximum
POWER REQUIREMENTS:..............................AC 120 Volts 60 Hz 8 watts
DIMENSIONS....................2"(52 mm) x 7 7/8" (200 mm) x 7" (175 mm) HWD
WEIGHT........................................................24 oz. (650g)
Specifications are typical; individual units might vary. Specifications
are subject to change without notice.
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