Cobra 148 GTL - Manuals - manualsarea.com

Page 2 - Section I Introduction; The CB Story

Section I Introduction FREQUENCY RANGEThe COBRA 148GTL transceiver represents one of the most advanced SSB/AM two-way radios ever designed for use as a Class D station in the Citizens Radio Service.This unit features advanced Phase Lock Loop (PLL) circuitry, which is used in the AMmode and in the up...

Page 3 - Section II Specifications

RECEIVER Sensitivity SSB: 0.25 µV for 10dB (S+N)/N at greater than 1/2-watt of audio output. AM: 0.5 µV for 10 dB (S+N)/ at greater than 1/2-watt of audio output. Selectivity AM: 6dB @ 3 KHz, 50 dB @ 9 KHz. SSB: 6 dB @ 1.1 KHz, 60 dB @ 2.3 KHz. Image Rejection More than 65 dB. IF Frequency AM: 7.8 M...

Page 4 - Section III Installation

Section III Installation (Continued) IGNITION NOISE INTERFERENCE Use of a mobile receiver at low signal levels is normally limited by the presenceof electrical noise. The primary source of noise in automobile installations is fromthe generator and ignition system in the vehicle. Under most operating...

Page 6 - Section IV Operation

10 Section IV Operation (Continued) 4. SWR CAL CONTROL (outer dual concentric). In order for you to achievemaximum radiated power and the longest range, it is important that yourantenna be in good condition, properly adjusted and matched to your trans-ceiver. The Built-in SWR (standing wave ratio) m...

Page 10 - Section V Maintenance and Adjustment

18 Section V Maintenance and Adjustment The COBRA 148GTL transceiver is specifically designed for the environment en-countered in mobile installations. The use of all solid state circuitry and its lightweight result in high reliability. Should a failure occur, however, replace partsonly with identic...

Page 11 - Section VI Appendix

Section VI Appendix (Continued) A FEW RULES THAT SHOULD BE OBEYED 1. You are not allowed to carry on a conversation with another station for morethan five minutes at a time without taking a one-minute break, to give othersa chance to use the channel. 2. You are not allowed to blast others off the ai...

Page 12 - If You Need Service

If You Need Service If You Think You Need Service, Call 773-889-3087 You may be asked to send your unit to the Cobra factory. It will be necessary tofurnish the following, in order to have the product serviced and returned. 1. For Warranty Repair, include some form of proof-of-purchase, such as a me...

Page 13 - COBRA CB RADIO ACCESSORIES; If you wish, you can order directly from Cobra; LIMITED TWO YEAR WARRANTY

Description Part No. Cost Ea. X Qty. = Amount Replacement microphone with 4-pin connector for 148 GTL CA-73 $19.95 MOBILE POWER MICROPHONEAmplified Power Microphone with 4-pin connector for 148 GTL CA-75 $19.95 NOISE CANCEL MICROPHONE for 148 GTL CA-77 $39.95 ECHO POWER MICROPHONE or 148 GTL CA-79 $...

Page 14 - Cobra Electronics Corporation

2 PRINTED IN THAILAND ©COBRA ELECTRONICS CORPORATION 1996 480-163-P- 001 Cobra Electronics Corporation 6500 W. Cortland Street Chicago, IL 60707