Radio Shack PRO-528 manual Operating Temperature, Search Speed, Power, Current Drain

Beyond the Basics

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 380.7 MHz, 10.85 MHz, 450
kHz
Antenna Impedance	.............................. 50Ω
Audio Output	270 mW maximum
Built-in Speaker	1&7/16 Inches (36 mm)
8Ω Dynamic Type
Power:

4 AA Alkaline Batteries (6.0 VDC),

or 4 AA Rechargeable Ni-MH Batteries (4.8 VDC) or Optional AC Adapter

Current Drain:

Squelched	80 mA
Full Output	160 mA
Dimensions (HWD)	6 x 2.6 x 1.75 inches
	(153 x 66 x 44 mm)

Weight (without antenna, batteries, belt clip) 8.4 oz (238 g)

88