Cobra Electronics HH36ST user manual

User manual for the device Cobra Electronics HH36ST

Device: Cobra Electronics HH36ST
Category: Two-Way Radio
Manufacturer: Cobra Electronics
Size: 0.58 MB
Added : 7/22/2014
Number of pages: 24
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Abstracts of contents
Summary of the content on the page No. 1

OPERATING INSTRUCTIONS FOR YOUR
40 CHANNEL
CITIZENS BAND
SSB/AM 2-WAY
MOBILE RADIO
Model 148 GTL
Nothing comes close to a Cobra™
PRINTED IN CHINA ©2002 COBRA ELECTRONICS CORPORATION 480-046-P
6500 WEST CORTLAND STREET
CHICAGO, IL 60707 USA

Summary of the content on the page No. 2

How To Use Your Serial No. Date of Purchase 40-CHANNEL, Dealer Name CITIZENS BAND Keep this manual for detailed information about your Cobra CB Radio System. SSB/AM 2-WAY MOBILE RADIO SAVE YOUR SALES RECEIPT, THE Model 148 GTL CARTON AND “PACKING” FOR POSSIBLE FUTURE USE. Contents Page Section I: Introduction ..........................................................................................2 Section II: Specifications..................................................................

Summary of the content on the page No. 3

Section I Introduction Section II Specifications FREQUENCY RANGE GENERAL The COBRA 148GTL transceiver represents one of the most advanced SSB/AM Channels 40 AM, 40 LSB, 40 USB. two-way radios ever designed for use as a Class D station in the Citizens Radio Frequency Range 26.965 to 27.405 MHz. Service. This unit features advanced Phase Lock Loop (PLL) circuitry, which is used Frequency Control Phase Lock Loop (PLL) synthesizer. in the AM mode and in the upper and lower single sideband modes, p

Summary of the content on the page No. 4

Section II Specifications (Cont.) Section III Installation LOCATION RECEIVER Plan the location of the transceiver and microphone bracket before starting the Sensitivity SSB: 0.25 µV for 10dB (S+N)/N at greater than installation. Select a location that is convenient for operation and does not 1/2-watt of audio output. interfere with the driver or passengers in the vehicle. In automobiles, the AM: 0.5 µV for 10 dB (S+N)/ at greater than 1/2- transceiver is usually mounted below the dash panel, w

Summary of the content on the page No. 5

Section III Installation (Continued) Section III Installation (Continued) TUNING THE ANTENNA FOR OPTIMUM SWR IGNITION NOISE INTERFERENCE Since there is such a wide variety of base and mobile antennas, this section will Use of a mobile receiver at low signal levels is normally limited by the presence strictly concern itself to the various types of mobile adjustable antennas. of electrical noise. The primary source of noise in automobile installations is from Because antenna length is directly re

Summary of the content on the page No. 6

Section IV Operation Section III Installation (Continued) CONTROLS AND INDICATORS D. Try a different location on your car (keeping in mind the radiation pattern you wish). There are thirteen controls and three indicators on the front panel of your E. Is the antenna perfectly vertical? COBRA 148GTL. F. Try a different location in your neighborhood. Stay away from large metal objects when adjusting (metal telephone or light posts, fences, etc.). NOTE The COBRA 148GTL will operate into an SWR of

Summary of the content on the page No. 7

Section IV Operation (Continued) Section IV Operation (Continued) 4. SWR CAL CONTROL (outer dual concentric). In order for you to achieve 10. PA/CB SWITCH. Selects the mode of operation. In the CB position, the PA maximum radiated power and the longest range, it is important that your function is disabled and the unit will transmit and receive on the speaker that is connected. In the PA mode, incoming CB transmission will be heard through the antenna be in good condition, properly adjusted and m

Summary of the content on the page No. 8

Section IV Operation (Continued) Section IV Operation (Continued) B. INDICATOR FUNCTIONS 7. Set the CHANNEL selector switch to the desired channel. 8. Adjust the VOICE LOCK control to clarify the SSB signals or to optimize 1. S-METER. Swings proportionally to the strength of the incoming signal. AM signals. 2. RF METER. Swings proportionally to the RF output power. OPERATING PROCEDURE TO TRANSMIT 3. SWR METER. Swings proportionally to the ratio of standing wave voltage and RF output. Used to pr

Summary of the content on the page No. 9

Section IV Operation (Continued) Section IV Operation (Continued) pitched whistle or a high-pitched whistle) you will hear the increase in the output ALTERNATE MICROPHONES AND INSTALLATION tone of the receiver. If the incorrect mode is selected, an increase in tone of a For best results, the user should select a low-impedance dynamic type microphone whistle applied to the transmitter will cause a decrease in the resultant tone from or a transistorized microphone. Transistorized type microphones

Summary of the content on the page No. 10

Section IV Operation (Continued) Section IV Operation (Continued) 3 2 Fig. 2. Microphone Cable Preparation. 4 1 To wire the microphone cable to the plug provided, proceed as follows: Fig. 4. Microphone plug pin numbers viewed from rear of pin receptacle. 3 4 Be sure that the housing and the knurled ring of Fig. 3 are pushed back onto the 2 1 microphone cable before starting to solder. If the washer is not captive to the pin receptacle body, make sure that it is placed on the threaded portion of

Summary of the content on the page No. 11

Section V Maintenance and Adjustment Section VI Appendix Citizens Band radio operators have largely adopted the “10-code” for standard questions and answers. Its use permits faster communications and better understanding in noisy areas. The following table lists some of the more common codes and their meanings: The COBRA 148GTL transceiver is specifically designed for the environment encountered in mobile installations. The use of all solid state circuitry and its light 10-CODE weight result

Summary of the content on the page No. 12

Section VI Appendix (Continued) Section VI Appendix (Continued) A FEW RULES THAT SHOULD BE OBEYED USE CHANNEL 9 FOR EMERGENCY MESSAGES ONLY 1. You are not allowed to carry on a conversation with another station for more FCC gives the following examples of permitted and prohibited types of than five minutes at a time without taking a one-minute break, to give others communications for use on Channel 9. These are guidelines and are not a chance to use the channel. intended to be all-inclusive: 2

Summary of the content on the page No. 13

INSTRUCCIONES DE USO DEL 40 CANALES RADIO BIDIRECCIONAL MÓVIL SSB/AM DE BANDA CIUDADANA Modelo 148 GTL Nada se compara a Cobra™ IMPRESO EN CHINA ©2002 COBRA ELECTRONICS CORPORATION 480-046-P 6500 WEST CORTLAND STREET CHICAGO, IL 60707 USA

Summary of the content on the page No. 14

Instrucciones de uso del Número de serie Fecha de compra RADIO BIDIRECCIONAL Nombre del distribuidor MÓVIL SSB/AM DE 40 CANALES Conserve este manual como referencia detallada DE BANDA CIUDADANA de su sistema de radio CB Cobra. Modelo 148 GTL GUARDE EL COMPROBANTE DE VENTA, LA CAJA Y LOS MATERIALES DE EMBALAJE, Índice Página YA QUE POSIBLEMENTE TENGA QUE UTILIZARLOS EN EL FUTURO. Sección I: Introducción .........................................................................................

Summary of the content on the page No. 15

Sección I Introducción Sección II Especificaciones INTERVALO DE FRECUENCIAS GENERALES El transmisor-receptor COBRA 148GTL es uno de los radios transmisores-receptores Canales 40 AM, 40 LSB, 40 USB. SSB/AM más avanzados que se han diseñado para usarse como estación de clase D Intervalo de frecuencias 26,965 a 27,405 MHz. en el servicio de radio ciudadana. Esta unidad tiene avanzados circuitos de sincroni- Control de frecuencia Sintetizador de sincronización de fase (PLL). zación de fase (PLL, Ph

Summary of the content on the page No. 16

Sección II Especificaciones (cont.) Sección III Instalación RECEPTOR LUGAR Sensibilidad SSB: 0,25 µV para 10 dB (S+N)/N a más de 0,5 W Antes de iniciar la instalación, determine dónde colocará el transmisor-receptor y el de potencia de audio. soporte del micrófono. Busque un lugar donde la unidad pueda operarse fácilmente AM: 0,5 µV para 10 dB (S+N)/N a más de 0,5 W y no interfiera con el conductor o los pasajeros del vehículo. En un automóvil, el de potencia de audio. transmisor-receptor por l

Summary of the content on the page No. 17

Sección III Instalación (continuación) Sección III Instalación (continuación) INTERFERENCIA POR RUIDO DEL ENCENDIDO AJUSTE DE LA ANTENA PARA OBTENER LA RELACIÓN ÓPTIMA ONDA ESTACIONARIA (SWR) El uso de un receptor móvil con señales de baja intensidad por lo general es limitado por la presencia de ruido eléctrico. Al instalar la unidad en un automóvil, las principales Dado que hay tanta variedad entre las antenas base y móviles, esta sección abarca fuentes de ruido son el generador y el sistema d

Summary of the content on the page No. 18

Sección IV Operación Sección III Instalación (continuación) CONTROLES E INDICADORES D. Coloque la antena en otro lugar del vehículo (tenga en cuenta el patrón de radiación que desea). En el panel delantero del radio COBRA 148GTL hay 13 controles y tres indicadores. E. ¿Está la antena perfectamente vertical? F. Pruebe en otro lugar de su vecindario. Manténgase lejos de objetos metálicos grandes (postes metálicos de teléfono o electricidad, cercas, etc.). NOTA El radio COBRA 148GTL funcionará inde

Summary of the content on the page No. 19

Sección IV Operación (continuación) Sección IV Operación (continuación) 4. CONTROL DE CALIBRACIÓN DE RELACIÓN DE ONDA ESTACIONARIA (SWR 10. INTERRUPTOR DE SISTEMA DE ALTAVOZ Y BANDA CIUDADANA (PA/CB). CAL CONTROL) (parte exterior del control doble concéntrico). Para que usted Selecciona la modalidad operativa. Cuando este selector está en la posición CB (banda obtenga la máxima potencia radiada y el mayor alcance, es importante que la ciudadana), se desactiva el sistema de altavoz (PA) y la unid

Summary of the content on the page No. 20

Sección IV Operación (continuación) Sección IV Operación (continuación) B. FUNCIONES DE LOS INDICADORES 6. Escuche el ruido de fondo en el altoparlante. Gire el control de ruido de fondo (SQUELCH) lentamente en sentido horario justo hasta que desaparezca el ruido (no 1. MEDIDOR DE INTENSIDAD DE SEÑAL. Se mueve proporcionalmente a la debe haber señal presente). Deje el control en esta posición. La reducción de ruido intensidad de la señal recibida. de fondo (SQUELCH) ha sido ajustada en forma cor


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