Uniden UM-525 - Manual (Page 47)

47
A: The microphone might have a bad element. Contact your Uniden marine dealer for more
information.
Q: The radio always stops on one particular channel even though I didn’t select it. Why?
A: There might be a source of noise near that channel’s frequency. Choose another
frequency.
Q: The radio is receiving noise on a channel and I cannot eliminate it using the squelch.
What’s wrong?
A: An external source might be generating noise on that frequency. Turn off the offending
device or choose another frequency.
General
Channels All USA, Canadian and International Marine Channels
Channel Display 2.2 inch color LCD with white backlight
Dimensions (HWD) 4.4 x 6.6 x 5.2 in.(110 x 165 x 131.2 mm)
Weight 45.88 oz (1.3 kg)
Supply Voltage 11 ~ 16 VDC negative ground
Standard Accessories Mounting bracket and hardware, DC power cord, microphone hanger,
spare fuse, GPS external cable, EXT SP (External Speaker) external cable, hailer cable
VHF Antenna Impedance 50
Ω
nominal
Microphone 2 k
Ω
condenser mic element with coiled cord
Speakers
INT SP (internal) 45 mm diameter, 8
Ω
MIC SP (microphone) 36 mm diameter, 8
Ω
Operating Temperature -4° to 122° F (-20° to 50 °C)
Shock and Vibration Meets or exceeds EIA standards, RS152B and RS204C
FCC Approvals Type accepted under Part 80 of FCC Rules ;
meets Great Lakes Agreement and party boat requirements
Specifications
Specifications