Reference Tables; Channel Descriptions And What They Mean - Uniden MHS335 Owner's Manual

Receiver
Type
Frequency Range
Sensitivity
Squelch Sensitivity
Audio Frequency Response
Adjacent Channel Selectivity
Audio Output Power
Current Drain

REFERENCE TABLES

Channel Descriptions and What They Mean

The table below lists the display name or channel description used in the following tables
and what each description means.
Channel name/description
DISTRESS SAFETY AND CALLING
INTERSHIP SAFETY
NON-COMMERCIAL (recreational or
voluntary ships only)
COMMERCIAL (working ships only)
PUBLIC CORRESPONDENCE/
MARINE OPERATOR
PORT OPERATIONS/VTS (ship traffic
system)
NAVIGATIONAL/BRIDGE TO
BRIDGE
Double Conversion Super Heterodyne
Phase Locked Loop system for Local Oscillator
156~164 MHz
0.24 μV for 12dB SINAD
Threshold 0.2μV
+5.5 dB @ 500 Hz; -6 dB @ 2000Hz
73 dB @ ±25 kHz
≥0.8 W @MAX VOLUME
Squelched: 90mA; Max. Audio: 350mA
Used for
primarily emergency messages and distress
calls
safety messages from one ship to another, or
from a ship to Coast Guard aircraft
messages about the needs of the ship, including
fishing reports, rendezvous, scheduling repairs
and berthing information
messages about the needs of the ship or the
business the ship is engaged in
calls to the marine operator at a public coast
station. Marine operators can connect you to the
telephone network so you can make and receive
calls. (There is usually a charge for this service.)
messages about the movement and safety of
ships in or near ports, locks or waterways. In
certain major ports, some channels may be
restricted to specific types of port operations
messages.
messages about ship navigation, for example,
passing or meeting other ships, maneuvering
through locks, or navigating around drawbridges.
Messages must be short!
Uniden MHS335 Radio Owner's Manual E-43