Radio Shack PRO-97 Manual page 83

Beyond the Basics
21.4 MHz at 154.1 MHz ....................................................................... 100 dB
Squelch Sensitivity:
Threshold (FM and AM) ........................................................................0.5 µV
Tight (FM) .............................................................................................. 25 dB
Tight (AM) .............................................................................................. 20 dB
Antenna Impedance ......................................................................... 50 Ohms
Audio Output Power (10% THD) ...................................................... 170 mW
Built-in Speaker ............................................................ 1 3/8 Inches (36 mm)
................................................................................... (8-ohm, Dynamic Type)
Power Requirements:
Batteries ..................................................................... 4 AA Alkaline Batteries
External Power ......................................................................................9V DC
Current Drain (Squelched) ................................................................... 90 mA
Battery Charge Current ...................................................................... 150 mA
Dimensions (HWD) ........... 5 3/4 x 2 9/16 x 1 5/8 Inches (145 x 65 x 42 mm)
Weight (without antenna and batteries) ..................................8.5 oz. (240 g)
Specifi cations are typical; individual units might vary. Specifi cations and
depictions are subject to change and improvement without notice.
83