Specifications; Table 9 - Radio Specifications - Uniden UM425 Owner's Manual

Specifications

Specifications

Table 9 - Radio specifications

(All specifications are subject to change without notice.)
General
Controls
Status Indicators
Display
Buttons
Connectors
Size
Weight
Supply Voltage
Standard Accessories
Antenna Impedance
Microphone
Speaker
Operating Temperature Range
Shock and Vibration
FCC Approvals
Transmitter
Power Output
Power Requirement
Modulation
Hum and Noise Signal-to-Noise
Audio Distortion
Spurious Suppression
Output Power Stabilization
Frequency Range
Frequency Stability
, Squelch
V -P
OLUME WR
Transmit power, Scan mode, Triple Watch mode, Battery
High, Battery low, USA, CAN, INT, Alert, Memory, Weather
band, GPS status and Channel Display
LCD (Full Dot Matrix)
WX-Alert, 16/9-Tri, Scan-Mem, Channel Up, Channel
Down, Menu-PA, Select-1W/25W, and Distress.
Antenna, accessory, and DC power
H 65 mm x W 162 mm x L 126 mm (without Heat Sink) H
2.56 inches x W 6.38 inches x L 4.96 inches
0.9 kg (2 pounds)
Nominal 13.8V DC, negative ground (11.7 VDC to 14.3
VDC)
Mounting bracket and hardware, DC power cable,
microphone hanger, spare fuse, accessory cable
50 Ω nominal
Rugged 2 kΩ condenser mic element with coiled cord
1.77 inch, 8 Ω
–20 °C to + 50 °C (–4 °F to +122 °F)
Meets or exceeds EIA standards, RS152B and RS204C
Type accepted under part 80 of the Rules; meets Great
Lakes Agreement and party boat requirements
1 watt or 25 watt (user selectable)
25 watts output: 6A@13.8V DC
±5 kHz deviation
45 dB@1 kHz with 3 kHz deviation with 1000 Hz
modulating frequency (nominal)
Less than 8% with 3 kHz deviation with 1000 Hz
modulating frequency
–25 dBm @ Hi, –25 dBm @ Lo
Built-in automatic level control (ALC)
156 to 158 MHz
±10 ppm @ –20°C to + 50°C
E-55