Radio Shack PRO-2039 Owner's Manual page 8

Specifications
Frequency Coverage:..........................30 -- 54 MHz (in 5 kHz steps)
108.0000 -- 136.9750 MHz (in 25 kHz steps)
137.0000 -- 174.0000 MHz (in 5 kHz steps)
380.0000 -- 512.0000 MHz (in 12.5 kHz steps)
806.0000 -- 823.9375 MHz (in 12.5 kHz steps)
851.0000 -- 868.9375 MHz (in 12.5 kHz steps)
896.0000 -- 960.0000 MHz (in 12.5 kHz steps)
Channels of Operation:...........Any 200 Channels in any Band Combinations
(20 channels x 10 banks) plus 10 Monitor Channels
Sensitivity (20 dB (S+N)/N Mod. = 60% at 1 kHz):
30 -- 54 MHz:................................................0.5 microV
180 -- 136.975 MHz:............................................2 microV
137 -- 174 MHz:................................................1 microV
380 -- 512 MHz:................................................1 microV
806 -- 960 MHz:................................................2 microV
Spurious Rejection at 154 MHz (FM):..................................50 dB
Selectivity:
+/- 10 kHz:.......................................................-6 dB
+/- 20 kHz:......................................................-50 dB
IF Interference Ratio 10.7 MHz at 154 MHz:............................50dB
Scanning Rate:
Fast:..................................................25 channels/sec.
Slow:...................................................8 channels/sec.
Search Rate:
Fast:.....................................................50 steps/sec.
Slow:......................................................8 steps/sec.
Priority Sampling:...............................................2 seconds
Delay Time:......................................................2 seconds
IF Frequencies:.......................................10.7 MHz and 455 kHz
Squelch Sensitivity:
Threshold:.........................................Less than 1.0 microV
Tight (FM):...............................................(S+N)/N 25 dB
Tight (AM):...............................................(S+N)/N 20 dB
Antenna Impedance:.................................................50 ohms
Audio Power (10% THD):.......................................1.0 W nominal
Built-in Speaker:...........................3" (77 mm) 8 ohm, dynamic type
Power Requirement:..................................AC 120V 60 Hz 13 watts
Operating Temperature:.....................+32 degrees F to +109 degrees F
Dimensions:.............................3 1/8 x 7 1/2 x 7 1/8 inches (HWD)
Weight (without antenna and batteries):...............Approx. 35 oz. (1kg)
(0 degrees C to +43 degrees C)
(80 x 190 x 180 mm)