53
Nothing
Comes Close to a Cobra
®
52 English
Introduction
Specifications
Specifications (typical)
•
General
Number of Channels
All U.S., Canadian and International Channels
Channel Spacing
25 kHz
Modulation
5 kHz Max.
Input Voltage
7.4 VDC
Battery Life:
LiON: 8 hours @ 6 watts, 14 hours @ 1 watt
5% TX, 5% RX, 90% Standby
Current Drain:
Standby
45 mA
Receive (Rx)
200 mA
Transmit (Tx)
1.8 A @ High Power, 700 mA @ Low Power
Temperature Range
-20˚C to 40˚C
Radio Dimensions
4.8" x 2.4" x 1.4"
(123 mm x 62 mm x 36 mm) not including
antenna
Radio Weight
0 lbs 8 oz. (228 g) without batteries
Receiver
Frequency Range
155.450 to 162.825 MHz
Receiver Type
Double Conversion Super-Heterodyne
Sensitivity:
12 dB Sinad
-116 dBm
Adjacent Channel Selectivity
70 dB
Intermodulation Rejection
68 dB
Spurious and Image Rejection
70 dB
AF Output
250 mW @ 8 Ohms and 5% distortion
Transmitter
Frequency Range (Tx):
155.450 to 162.425 MHz
RF Output Power
1, 3 or 6 Watts Max (5 Watts rated)
Spurious Emissions
-36 dBm
Microphone Type
Condenser
Frequency Stability
±5 ppm
FM Hum and Noise
40 dB
Bluetooth
®
Classification
Class 2,1
Version
2.0
Range
10 Meters
Introduction
Specifications
VHF Marine Channel Assignements
•
Three (3) sets of VHF
Channel Maps
have been established for marine use
internationally, in Canada and in the U.S.A. Most of the channels are the same for all
three (3) maps, but there are definite differences (see table on the following pages).
Your radio has all three (3) maps built into it and will operate correctly in whichever area
you choose. When shipped from the factory, your radio will be set to the International
Channel Map. (See page 18 for instructions on how to change the Channel Map.)
The following is a brief outline for some of the channel assignments
in the International Channel Map.
Distress, Safety and Calling
Channel 16
Getting the attention of another station (calling) or in emergencies (distress and safety).
Intership Safety
Channel 6
Ship-to-ship safety messages and for search and rescue messages to coastguard
ships and aircraft.
On-Board Communication
Channel 15, 17
Used for communication between parts of large ships.
Navigational
Channels 13, 67, 75, 76
Channels are available to all vessels. Messages must be about navigation, including
passing or meeting other vessels. These are also the main working channels for most
locks and drawbridges.
Digital Selective Calling
Channel 70
This channel is set aside for distress, safety and general calling using only digital
selective calling techniques. Voice communication is prohibited; your radio cannot
transmit voice messages on this channel.
NOTE
The U.S.A. and Canada impose restrictions on the use of many channels within
their territorial waters. These are noted in the channel assignment chart. If
operating your vessel in U.S.A. or Canadian waters, consult the national communi-
cation authority or a knowledgeable local radio operator for further guidance.
VHF Marine
Channel Assignments
Appendix
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