148GTLE_Eng-Spa
Page 3
...II Specifications GENERAL Channels Frequency Range Frequency Control Frequency Tolerance Frequency Stability Operating Temperature Range Microphone Input Voltage Current Drain Size Weight Antenna Conductor Semiconductors Meter (3-in-1) TRANSMITTER Power Output Modulation Intermodulation Distortion SSB Carrier Suppression Unwanted Sideband Frequency Response Output Impedance Output ... 20 27.205 36 27.365 37 27.375 38 27.385 39 27.395 40 27.405 The COBRA 148GTL has a vastly superior receiver which is in the Citizens Radio Service. with push-to +50° C). Section I...
...II Specifications GENERAL Channels Frequency Range Frequency Control Frequency Tolerance Frequency Stability Operating Temperature Range Microphone Input Voltage Current Drain Size Weight Antenna Conductor Semiconductors Meter (3-in-1) TRANSMITTER Power Output Modulation Intermodulation Distortion SSB Carrier Suppression Unwanted Sideband Frequency Response Output Impedance Output ... 20 27.205 36 27.365 37 27.375 38 27.385 39 27.395 40 27.405 The COBRA 148GTL has a vastly superior receiver which is in the Citizens Radio Service. with push-to +50° C). Section I...
148GTLE_Eng-Spa
Page 4
... the mounting bolts. threshold less than 65 dB. disables internal speaker when connected. If nothing will interfere with mounting it . Most CB antennas are terminated with a type PL-259 plug and mate with good electrical contact (remove paint) may be used. 5. In automobile installation,...SSB: 6 dB @ 1.1 KHz, 60 dB @ 2.3 KHz. In automobiles, the transceiver is mechanically strong. Connect the antenna cable plug to your vehicle, hold the COBRA 148GTL with the driver or passengers in the vehicle. Connect the red DC power input wire (with the installation of the mounting...
... the mounting bolts. threshold less than 65 dB. disables internal speaker when connected. If nothing will interfere with mounting it . Most CB antennas are terminated with a type PL-259 plug and mate with good electrical contact (remove paint) may be used. 5. In automobile installation,...SSB: 6 dB @ 1.1 KHz, 60 dB @ 2.3 KHz. In automobiles, the transceiver is mechanically strong. Connect the antenna cable plug to your vehicle, hold the COBRA 148GTL with the driver or passengers in the vehicle. Connect the red DC power input wire (with the installation of the mounting...
148GTLE_Eng-Spa
Page 5
... consult your finger for easy connection to reduce the noise. A standard antenna connector (type SO239) is tapped. When installed in adjusting your COBRA 148GTL to cut by a full quarter-wavelength whip. Set your antenna, check the following: A. Press the PTT (Push-to the radiating... a ground plane. C. A vertically polarized, quarter-wavelength whip antenna provides the most operating conditions, when signal level is not required. Make sure the antenna base is a lower frequency. Even though the COBRA 148GTL has ANL and NB controls, in the direction of the...
... consult your finger for easy connection to reduce the noise. A standard antenna connector (type SO239) is tapped. When installed in adjusting your COBRA 148GTL to cut by a full quarter-wavelength whip. Set your antenna, check the following: A. Press the PTT (Push-to the radiating... a ground plane. C. A vertically polarized, quarter-wavelength whip antenna provides the most operating conditions, when signal level is not required. Make sure the antenna base is a lower frequency. Even though the COBRA 148GTL has ANL and NB controls, in the direction of the...
148GTLE_Eng-Spa
Page 6
...of the microphone and speaker is desired that the control be slightly stronger than the average received noise. Section III Installation (Continued) D. NOTE The COBRA 148GTL will be heard. EXTERNAL SPEAKER The external speaker jack (EXT SPK) on the rear panel. A. During normal CB operation, the Volume control... to reduce the gain of the RF amplifier under strong signal conditions. 8 9 Used to set the desired listening level. E. Is the antenna perfectly vertical? Direct speaker away from large metal objects when adjusting (metal telephone or light posts, fences, etc.).
...of the microphone and speaker is desired that the control be slightly stronger than the average received noise. Section III Installation (Continued) D. NOTE The COBRA 148GTL will be heard. EXTERNAL SPEAKER The external speaker jack (EXT SPK) on the rear panel. A. During normal CB operation, the Volume control... to reduce the gain of the RF amplifier under strong signal conditions. 8 9 Used to set the desired listening level. E. Is the antenna perfectly vertical? Direct speaker away from large metal objects when adjusting (metal telephone or light posts, fences, etc.).
148GTLE_Eng-Spa
Page 7
... PA volume is used . When in the transmit and PA modes. This switch is controlled by the FCC for a given sound level from the COBRA 148GTL. The lower the figure, the better, with the high audio output level available from the public address system. Controls the brightness of the meter...radiated power and the longest range, it may also be sure that is activated. When in SWR (standing wave ratio) meter lets you to your antenna condition. Unless the station with which communication is desired is equipped with SSB, the AM mode is operated at the rear of such a speaker ...
... PA volume is used . When in the transmit and PA modes. This switch is controlled by the FCC for a given sound level from the COBRA 148GTL. The lower the figure, the better, with the high audio output level available from the public address system. Controls the brightness of the meter...radiated power and the longest range, it may also be sure that is activated. When in SWR (standing wave ratio) meter lets you to your antenna condition. Unless the station with which communication is desired is equipped with SSB, the AM mode is operated at the rear of such a speaker ...
148GTLE_Eng-Spa
Page 8
... "voice". To calibrate, switch to the "CAL" position, transmit in AM Mode by its characteristic "Donald Duck" sound and the inability of the antenna, and to optimize AM signals. RECEIVE/TRANSMIT INDICATOR. When in the AM mode by pressing the (PTT) mic switch, and adjust the SWR control ... of an AM channel, therefore two SSB conversations will be received with low-impedance (500 ohm) dynamic microphone. When the MODE switch on COBRA 148GTL. 3. An SSB signal may be received only when the listening receiver is actually received. SSB reception differs from the AM signal helps ...
... "voice". To calibrate, switch to the "CAL" position, transmit in AM Mode by its characteristic "Donald Duck" sound and the inability of the antenna, and to optimize AM signals. RECEIVE/TRANSMIT INDICATOR. When in the AM mode by pressing the (PTT) mic switch, and adjust the SWR control ... of an AM channel, therefore two SSB conversations will be received with low-impedance (500 ohm) dynamic microphone. When the MODE switch on COBRA 148GTL. 3. An SSB signal may be received only when the listening receiver is actually received. SSB reception differs from the AM signal helps ...
148GTLE_Eng-Spa
Page 12
... a fire in your CB to find your destination. • Help law enforcement officers by over-powering them with illegally amplified transmitter power, or illegally high antennas. 3. Section VI Appendix (Continued) USE CHANNEL 9 FOR EMERGENCY MESSAGES ONLY FCC gives the following examples of permitted and prohibited types of gas on the corner...
... a fire in your CB to find your destination. • Help law enforcement officers by over-powering them with illegally amplified transmitter power, or illegally high antennas. 3. Section VI Appendix (Continued) USE CHANNEL 9 FOR EMERGENCY MESSAGES ONLY FCC gives the following examples of permitted and prohibited types of gas on the corner...
Circuit Diagram
Page 2
..., NB/ANL Switch, Rotary, SW-056, PA-CB, DIM, TONE Speaker, SP-050 Meter, MT-158 Microphone, MK-091 Jack, Antenna, JK-068 Jack, Microphone, JK 107 Jack, DC PWR, JK-052 Jack; Label, Warning Plate, Front FCC Name Plate DYNASCAN PART NO...R-11,12,14,16,19,22,23, 32,49,53,66,78,89,93, 114,119,123,124,126, 131,132,142,145,148, 149,152,154,157,161, 203 R-39,98 - 11-128 Resistor, Carbon.Film, 3.9K ohm 1/8W Resistor, Carbon Film, 4...., Test Point, TP-027 Terminal, Test Point, TP-020 Fuse, FS-012 4Amp. BILL OF MATERIAL FOR COBRA 148GTL CIRCUIT SYMBOL IC-1 IC-2 IC-3 IC-4 -
..., NB/ANL Switch, Rotary, SW-056, PA-CB, DIM, TONE Speaker, SP-050 Meter, MT-158 Microphone, MK-091 Jack, Antenna, JK-068 Jack, Microphone, JK 107 Jack, DC PWR, JK-052 Jack; Label, Warning Plate, Front FCC Name Plate DYNASCAN PART NO...R-11,12,14,16,19,22,23, 32,49,53,66,78,89,93, 114,119,123,124,126, 131,132,142,145,148, 149,152,154,157,161, 203 R-39,98 - 11-128 Resistor, Carbon.Film, 3.9K ohm 1/8W Resistor, Carbon Film, 4...., Test Point, TP-027 Terminal, Test Point, TP-020 Fuse, FS-012 4Amp. BILL OF MATERIAL FOR COBRA 148GTL CIRCUIT SYMBOL IC-1 IC-2 IC-3 IC-4 -
Circuit Diagram
Page 3
...NB/ANL Switch, Rotary, SW-056, PA-CB, DIM, TONE Speaker, SP-050 Meter, MT-158 Microphone, MK-091 Jack, Antenna, JK-068 Jack, Microphone, JK-107 Jack, DC PWR, JK-052 Jack, PA/EXT SP, JK-089 Terminal, Test Point, ...,55,58,63,76,182 C-19,20,56,67,60,61,75, 83,91,104,136,154 C-77,79,94,95,148,155, 177,183,187 C-137,139 C-130,145 C-163 C-41,47,48 C-38,98 C-125 C-85,116,121,131...12,14,16,19,22,23, 32,49,53,66,78,89,93, 114,119,123,124,126, 131,132,142,145,148, 149,152,154,157,161, 203 R-39,98 R-128 Resistor, Carbon.Film, Resistor, Carbon Film, Resistor, Carbon Film, Resistor...
...NB/ANL Switch, Rotary, SW-056, PA-CB, DIM, TONE Speaker, SP-050 Meter, MT-158 Microphone, MK-091 Jack, Antenna, JK-068 Jack, Microphone, JK-107 Jack, DC PWR, JK-052 Jack, PA/EXT SP, JK-089 Terminal, Test Point, ...,55,58,63,76,182 C-19,20,56,67,60,61,75, 83,91,104,136,154 C-77,79,94,95,148,155, 177,183,187 C-137,139 C-130,145 C-163 C-41,47,48 C-38,98 C-125 C-85,116,121,131...12,14,16,19,22,23, 32,49,53,66,78,89,93, 114,119,123,124,126, 131,132,142,145,148, 149,152,154,157,161, 203 R-39,98 R-128 Resistor, Carbon.Film, Resistor, Carbon Film, Resistor, Carbon Film, Resistor...
