PRO-31 Portable Scanner Specifications


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Download the Pro-31 Operator's Manual

PRO-Series Direct Entry Programmable Scanners: General Guide To Scanning

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Frequency Coverage:
   VHF-Lo:.......................................30-54 MHz (in 5 kHz steps)
   Government:.................................138-144 MHz (in 5 kHz steps)
   Ham:........................................144-148 MHz (in 5 kHz steps)
   VHF-Hi:.....................................148-174 MHz (in 5 kHz steps)
   Ham/Gov't:...............................380-450 MHz (in 12.5 kHz steps)
   UHF-Lo:..................................450-470 MHz (in 12.5 kHz steps)
   UHF-Hi ("T"):............................470-512 MHz (in 12.5 kHz steps)

Channels of Operation:...............................Any 10 channels in any
                                                          band combinations

Sensitivity:.................20 dB Signal-to-Noise ratio at 3 kHz Deviation
                                                      30-54 MHz      0.6 uV
                                                      138-174 MHz    1.0 uV
                                                      380-512 MHz    1.0 uV

Spurious Rejection:.............................30-54 MHz (50 dB at 40 MHz)
                                             138-174 MHz (50 dB at 150 Mhz)
380-512 Mhz (not specified)

Selectivity:................................................+/-9 kHz, -6 dB
                                                          +/-15 kHz, -50 dB

IF Rejection:...................................10.7 Mhz (50 dB at 154 MHz)

Scanning Rate:...............................................8 Channels/sec

Delay Time:.......................................................2 seconds

Modulation Acceptance:.............................................+/-5 kHz

IF Frequencies:........................................10.7 MHz and 455 kHz

Filters:.................................1 crystal filter, 1 ceramic filter

Squelch Sensitivity:
   Threshold:..............................................Less than 1.0 uV
   Tight:.....................................................(S+N)/N 15 dB

Antenna Impedance:..................................................50 Ohms

Audio Power:.................................................300 mW nominal

Built-In Speaker:..............................2" (5cm) 8 ohm, dynamic type

Power Requirements:...................+9 VDC, 6 AA batteries, or a suitable
                                             adapter (negative ground only)
   Current Drain:.............................60 mA(Squelched) 160 mA (full
                                                        volume unsquelched)

Dimensions:.............187 (7 3/8") x 74 (2 15/16") x 42 (1 10/16") mm HWD

Weight:......................................................1.1 lbs (500g)

 
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