Radio Shack PRO-137, Manual

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Specifications

Frequency Coverage:

25.0000 – 27.9950 MHz (in 5 kHz steps)

28.0000 – 54.0000 MHz (in 5 kHz steps)

108.0000 – 136.9875 MHz (in 12.5 kHz steps)

137.0000 – 174.0000 MHz (in 5 kHz steps)

216.0000 – 224.9950 MHz (in 5 kHz steps)

400.0000 – 512.0000 MHz (in 6.25 kHz steps)

806.0000–823.9875 MHz (in 12.5 kHz steps)

849.0125–868.9875 MHz (in 12.5 kHz steps)

894.0125–956.0000 MHz (in 12.5 kHz steps)

1240.0000–1300.0000 MHz (in 12.5 kHz steps)

Number of Banks............................................. 10

Sensitivity (AM/FM):

FM ......................  20 dB S/N at 3 kHz deviation

28–54 MHz ...............................................0.3 μV

137–174 MHz ...........................................0.3 μV

216–225 MHz ...........................................0.4 μV

400–512 MHz ...........................................0.4 μV

806–956 MHz ...........................................0.4 μV

1240–1300 MHz .......................................0.5 μV

AM .....................20 dB S/N at 60% modulation

25-28 MHz................................................1.0 μV

108–136.9875 MHz ..................................1.1 μV

IF Rejection (at 162.4 MHz)..................... 75 dB

Channels ...................................................... 1000

Operating Temperature:

Normal ................... -4° to 140°F (-20° to 60°C)

Signal Stalker I ......14° to 140°F (-10° to 60°C)

Scan Speed ......................  90 Channels/Second

Search Speed:

Normal .................................  90 Steps/Second

Hypersearch ....................... 270 Steps/Second

Priority Sampling..............................2 Seconds

Delay Time ...................................... 2 Seconds

IF Frequencies  380.75 MHz, 10.8 MHz, 450 kHz

Weather Alert Tone ................................1050 Hz

Antenna Impedance..................................... 50

ȍ

Audio Output........................500 mW maximum

Built-in Speaker............... 1 7/16 inches (36 mm)

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 Dynamic Type

Power:

3 AA Alkaline Batteries (4.5 VDC), or 

3 AA Rechargeable Ni-MH Batteries (3.6 VDC) 

or

Optional AC Adapter (Class 2; supplies 6V DC 

and delivers at least 800mA; center tip set to 
positive.)

Current Drain:

Squelched............................................. 135 mA

Full Output ........................................... 370 mA

Dimensions (HxWxD).......4.7 x 2.4 x 1.22 inches
.............................................(120.5 x 61 x 31 mm)

Weight (without antenna, batteries or
 beltclip)..........................................5.9 oz (167 g)

Specifications are typical; individual units might 
vary. Specifications and depictions are subject to 
change and improvement without notice.