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Cobra 148GTL-DX User Manual

Cobra 148GTL-DX
85 pages
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Cobra 148GTL-DX
120-Channel
Solid State, Citizens Band
SS B/CW/AM/FM 2-Way
Mobile Radio
Cobra Communications Product Group
DYNASCAN CORPORATION
6460 W. Cortland Street
Chicago, Illinois 60635
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Cobra 148GTL-DX Specifications

General IconGeneral
TypeCB Radio
Channels40
ModulationAM/SSB
MicrophoneDynamic
Weight3.5 lbs
Power Source13.8V DC
Frequency Range26.965 MHz - 27.405 MHz
Power Output4 Watts AM / 12 Watts SSB
Sensitivity0.5 μV
Frequency ControlPhase Lock Loop (PLL)

Summary

Introduction to Cobra 148GTL-DX

Frequency Range Overview

Details the frequency bands covered by the Cobra 148GTL-DX transceiver.

Cobra 148GTL-DX Specifications

General Specifications

Covers channels, frequency range, tolerance, stability, temp, mic, voltage, size, weight.

Transmitter Specifications

Details power output, modulation, distortion, and carrier suppression for transmission.

Receiver Specifications

Covers sensitivity, selectivity, image rejection, IF frequency, and AGC for reception.

Cobra 148GTL-DX Installation Guide

Location and Mounting Procedures

Guidance on choosing a location and mechanically securing the unit.

Noise Interference and Antenna Basics

Discusses ignition noise sources and antenna types for mobile use.

Antenna Tuning for Optimum SWR

Procedure for adjusting antenna length for optimal SWR.

Base Station, Speaker, and CW Setup

Covers base station operation, external speakers, and CW key use.

Operating the Cobra 148GTL-DX

Controls and Indicators Overview

Explains front panel controls, functions, and indicators.

Receiving and Transmitting Procedures

Guides on receiving, transmitting, and SSB signal handling.

Special Modes and Features

Covers CW operation, Roger Beep, and mic installation.

Cobra 148GTL-DX Maintenance

Cobra 148GTL-DX Appendix

10-Codes and Operating Rules

Reference for 10-codes and key operating rules for CB radio.

CB Usage Benefits and Channel 9

Discusses CB benefits and proper use of Channel 9.

Cobra Warranty Service

Cobra 148GTL-DX Warranty Details

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