Cobra 25 NW ST User Manual

How to Use Your
Cobra 25 NW ST
Contents
Features...........................................................................................1
The CB Story..................................................................................A1
FCC Regulations
FCC Warnings
Included Accessories
Controls & Indicators................................................................A2
Our Thanks toYou......................................................................A3
SoundTracker
™
Customer Support
Installation
Location.......................................................................................2
Mounting and Connection...................................................2
Antennas
CB Antenna................................................................................6
Marine Installation...................................................................6
Ignition Noise Interference...................................................7
Operating Your 25 NW ST
Turning On Your CB.................................................................8
Setting Channel Selector.......................................................9
To Receive...................................................................................10
Selecting a Channel................................................................10
S-Meter.........................................................................................11
SoundTracker
™
System.........................................................12
Activating SoundTracker
™
..................................................13
Dimmer Control........................................................................14
RF Gain Control.........................................................................14
Setting Squelch.........................................................................15
To Transmit.................................................................................17
Setting Dynamike....................................................................18
Transmit.......................................................................................19
RF Meter......................................................................................19
External Speaker.......................................................................20
PA (Public Address)..................................................................21
ANL (Automatic Noise Limiter) Switch.............................23
NB,OFF (Noise Blanker) Switch...........................................23
Temporary Mobile Set-Up.....................................................24
Home And Office Set-Up.......................................................25
How Your CB Can Serve You...................................................27
A Few Rules You Should Know............................................27
Channel 9 Emergency Messages.......................................27
CB 10 Codes...............................................................................29
Frequency Ranges......................................................................31
25 NW ST Specifications..........................................................32
Warranty Information ..............................................................33
Optional Accessories.................................................................34
Order Form ....................................................................................36
If You Think You Need Service.............................Back Cover
Features of This Product
• 40 CB Radio Channels
• SoundTracker
™
System
• Heavy-Duty Dynamic
Microphone
• Full 4 Watts AM RF Power Ou t p u t
• Instant Channel 19 and 9
• Front Panel 4-Pin Microphone
Connector
• Switchable Noise Blanker
• Switchable Automatic
Noise Limiter
• Adjustable Dynamike Boost
• Tactile Controls
• Illuminated Front Panel
• Dimmer Control
• RF Gain
• 9 ft. mic cord
1
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE
P E R S O N N E L
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
!
!
25 NWST Manual3.3 6/15/99 12:43 PM Page 1

Cobra 25 NW ST Specifications

General

Type	CB Radio
Channels	40
Power Output	4 Watts
Modulation	AM
Antenna Impedance	50 ohms
Power Supply	13.8 VDC
Frequency Range	26.965 MHz to 27.405 MHz
Weather Channels	7

Summary

Installation Guide

Location Planning

Plan location of transceiver and microphone bracket before starting the installation.

Mounting and Connection

Details on mounting the radio and connecting the antenna cable.

Antenna Setup

CB Antenna Selection

Operating the CB Radio

Powering On and Volume Adjustment

Steps to power on the CB transceiver and set initial listening volume.

Setting the Channel Selector

Receiving Signals

How to Receive

SoundTracker™ System

How SoundTracker™ Works

Explanation of how the system reduces noise and improves signals.

Activating SoundTracker™

How to turn on the SoundTracker™ feature.

Front Panel Controls

Dimmer and RF Gain Control

Setting Squelch

Desired Squelch Setting (DSS)

Procedure to set the squelch level for optimal reception.

Transmission Procedures

To Transmit

Instructions for sending a signal.

Setting Dynamike

RF Meter

External Speaker Connection

Public Address System

Noise Limiter Features

ANL (Automatic Noise Limiter)

NB, OFF (Noise Blanker)

Mobile and Base Station Set-Up

CB Radio Usage Guidelines

Important CB Radio Rules

Channel 9 Emergency Messages

Product Specifications and Warranty

Service and Support Information

Controls and Indicators Overview

Front Controls and Indicators

Identification of front panel controls and indicators.

Rear Panel Connectors