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Emergency Messages
and Distress Procedure
VHF Marine Radio Protocols
Intro
Operation
Customer
Warranty
Intro
Operation
Customer
Warranty
Assistance
Assistance
For Example
"Mayday — Mayday — Mayday"
"This is Corsair — Corsair — Corsair" [or "IL 1234 AB," repeated three (3) times]
Customer
Customer
Installation
Installation
Assistance
Assistance
"Mayday Corsair (or IL 1234 AB)"
Secondary Icons
Secondary Icons
"Navy Pier bears 220 degrees magnetic — distance 5 miles"
"Struck submerged object and flooding — need pump and tow"
"Four (4) adults, three (3) children aboard — no one injured"
Notice
Caution
Warning
Notice
Caution
Warning
"Estimate we will remain afloat one-half hour"
"Corsair (or IL 1234 AB) is 26 ft sloop with blue hull and tan deck house"
"I will be listening on Channel 16"
"This is Corsair (or IL 1234 AB)"
"Over"
It is a good idea to write out a script of the message form and post it where you
and others on your vessel can see it when an emergency message needs to be sent.
30 English
Specifications
Intro
Operation
Customer
Warranty
Specifications (Typical)
Assistance
General
Number of Channels
Customer
Installation
Assistance
Channel Spacing
Secondary Icons
Modulation
Input Voltage
Battery Life:
Notice
Caution
Warning
5% TX, 5% RX, 90% Standby
Current Drain:
Standby
Receive (Rx)
Transmit (Tx)
Temperature Range
Radio Dimensions
Radio Weight
Receiver
Frequency Range
Receiver Type
Sensitivity:
12 dB Sinad
Adjacent Channel Selectivity
Intermodulation and Rejection
Spurious and Image Rejection
AF Output
Transmitter
Frequency Range (Tx):
RF Output Power
Spurious Emissions
Microphone Type
Frequency Stability
FM Hum and Noise
Specifications
All International, Canadian and U.S.
Channels
25 kHz
5 kHz Max.
6.0 VDC
NiMH:
9.4 hours @ 3 watts
20 hours @ 0.5 watts
12 hours @ 1 watt
Alkaline:
26 hours @ 3 watts
33 hours @ 1 watt
45 mA
140 mA
1.1 A @ High Power, 450 mA @ Low Power
-20˚C to 50˚C
4.5" H x 2.7" W x 1.5" D
(114 mm x 69 mm x 38 mm) not including
antenna
0 lbs., 8 oz. (247g.)
156.050 to 163.275 MHz
Double Conversion Super-Heterodyne
0.25 uV
70 dB
70 dB
70 dB
250 mW @ 8 Ohms
156.025 to 157.425 MHz
.5, 1 or 3 watts
-60 dB @ High Power, -55 dB @ Low
Power
Condenser
+/-10 ppm
40 dB
Nothing Comes Close to a Cobra
•
®
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