Radio Shack PRO-63 owner manual Ohms

20-561.fm Page 54 Wednesday, August 4, 1999 3:48 PM

Intermediate Frequencies (IF):

1st . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.7 MHz 2nd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455 kHz

IF Rejection (10.7 MHz) . . . . . . . . . . . . . . . . 70 dB at 154 MHz

Squelch Sensitivity:

Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . Less than 0.5 mV

Tight (VHF Lo, Hi, UHF) . . . . . . . . . . . . . . . . . . .(S+N)/N 25 dB

Tight (Aircraft) . . . . . . . . . . . . . . . . . . . . . . . . . . .(S+N)/N 20 dB

Antenna Impedance 50 Ohms

Built-in Speaker . . . .13/8 Inches (36 mm), 8 Ohms, dynamic type

Audio Output Power (10% THD) . . . . . . . . . . . .240 mW Nominal

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . +9 VDC (6 AA alkaline batteries, 6 AA rechargeable nickel-cadmium batteries,

AC adapter (Cat. No. 273-1665), or DC cigarette-lighter adapter (Cat. No. 270-1560))

Current Drain (Squelched) . . . . . . . . . . . . . . . . . . . . . . . . 65 mA

Dimensions . . . . . . . . . . . . . . . . . . 57/8 ¥ 2 1/2 ¥ 1 3/4 Inches HWD (149 ¥ 64 ¥ 45 mm)

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.8 Oz (250 g)

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

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