27
Uniden MHS450 Radio Owner’s Manual
Specifications
General
Channels
Transmit: 54 US/International/Canada
Receive: 89 US/International/Canada
Weather: 10
Freq. Control
PLL
Freq. Tol.
Transmit: 1.5 PPM (at 25°C)
Receive: 1.5 PPM (at 25°C)
Oper. Temp.
-4°F (-20°C) to +122°F(+50°C)
Antenna
Flexible Whip
Microphone
Built-in Electret type
Display
Liquid Crystal Display
Speaker
8Ω 0.7 Watt
Power Source
Rechargeable Lithium Ion Battery
7.4V 1400 mAh
Size (without antenna)
3.8 (H) x 2.4 (W) x 1.3 (D) inch
97 (H) x 62 (W) x 33 (D) mm
Weight (w/battery and antenna) 8.8 oz (250g)
Transmitter
Frequency Range
156~158 MHz
Frequency Stability
±10 PPM
Power Output
1.0 W & 2.5W & 5W (Lithium Ion)
1.0W & 2.5W (Alkaline)
Spurious Emissions
70 dBc (5W)
Current Drain
1400mA (5W)
Receiver
Type
Double Conversion Super Heterodyne
Phase Locked Loop system for Local
Oscillator
Frequency Range
156~164 MHz
Sensitivity
0.2 μV for 12dB SINAD
Squelch Sensitivity
Threshold 0.1μV
Audio Frequency Response
±6 dB 500 to 2000Hz
Adjacent Channel Selectivity
70 dB @ ±25 kHz
Audio Output Power
0.4 W @10% THD
Current Drain
Squelched: 60mA
Max. Audio: 210mA
