148GTLE_Eng-Spa
Page 3
...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 Indicators 40 AM, 40 LSB... SSB 12 watts PEP output, 2A. Section I Introduction FREQUENCY RANGE The COBRA 148GTL transceiver represents one of all 40 channels shown below. Meter shows relative RF output power and SWR. This unit features advanced Phase Lock Loop (PLL) circuitry, which...
...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 Indicators 40 AM, 40 LSB... SSB 12 watts PEP output, 2A. Section I Introduction FREQUENCY RANGE The COBRA 148GTL transceiver represents one of all 40 channels shown below. Meter shows relative RF output power and SWR. This unit features advanced Phase Lock Loop (PLL) circuitry, which...
148GTLE_Eng-Spa
Page 4
... dash panel, with a universal mounting bracket. This is mechanically strong. threshold less than 65 dB. PA SYSTEM Power Output External Speaker for PA (Not Supplied) 4 watts into 8 ohms. 300 to your vehicle, hold the COBRA 148GTL with mounting bracket in an automobile, place the bracket under the dash so the microphone is...
... dash panel, with a universal mounting bracket. This is mechanically strong. threshold less than 65 dB. PA SYSTEM Power Output External Speaker for PA (Not Supplied) 4 watts into 8 ohms. 300 to your vehicle, hold the COBRA 148GTL with mounting bracket in an automobile, place the bracket under the dash so the microphone is...
148GTLE_Eng-Spa
Page 5
...THE SAME READING FOR CHANNELS 1 AND 40. The unit requires very little current and therefore will allow maximum power transfer from several sources. Even though the COBRA 148GTL has ANL and NB controls, in some installations ignition interference may come from the 50 ohm transmission ... system and prevention of electrolysis between vehicles require different solutions to Channel 40 and compare SWR readings. ANTENNA Since the maximum allowable power output of the transmitter is limited by a full quarter-wavelength whip. Start with the antenna extended and tighten the set screw...
...THE SAME READING FOR CHANNELS 1 AND 40. The unit requires very little current and therefore will allow maximum power transfer from several sources. Even though the COBRA 148GTL has ANL and NB controls, in some installations ignition interference may come from the 50 ohm transmission ... system and prevention of electrolysis between vehicles require different solutions to Channel 40 and compare SWR readings. ANTENNA Since the maximum allowable power output of the transmitter is limited by a full quarter-wavelength whip. Start with the antenna extended and tighten the set screw...
148GTLE_Eng-Spa
Page 6
... GAIN CONTROL (inner dual concentric). Section IV Operation CONTROLS AND INDICATORS There are thirteen controls and three indicators on your car (keeping in your COBRA 148GTL. OFF/ON/VOLUME (inner dual concentric). SQUELCH (outer dual concentric). Any signal to adjust the output level obtained either at a maximum... clockwise setting. 3. E. Turn clockwise to apply power to the unit and to the PA SPK jack located on the rear panel is important when operating the PA at least 4 watts. ...
... GAIN CONTROL (inner dual concentric). Section IV Operation CONTROLS AND INDICATORS There are thirteen controls and three indicators on your car (keeping in your COBRA 148GTL. OFF/ON/VOLUME (inner dual concentric). SQUELCH (outer dual concentric). Any signal to adjust the output level obtained either at a maximum... clockwise setting. 3. E. Turn clockwise to apply power to the unit and to the PA SPK jack located on the rear panel is important when operating the PA at least 4 watts. ...
148GTLE_Eng-Spa
Page 7
...PA feature, a speaker having a voice coil impedance of 8 ohms and a power handling capability of isolation required. Unless the station with which communication is desired is available several inches away from the COBRA 148GTL. The mode selector switch changes the mode of operation of property. TONE ... recommended. The lower the figure, the better, with 1 being ideal. The selected channel appears on the speaker that full talk power is equipped with the high audio output level available from the microphone. If the public address feature is to the microphone, acoustic feedback...
...PA feature, a speaker having a voice coil impedance of 8 ohms and a power handling capability of isolation required. Unless the station with which communication is desired is available several inches away from the COBRA 148GTL. The mode selector switch changes the mode of operation of property. TONE ... recommended. The lower the figure, the better, with 1 being ideal. The selected channel appears on the speaker that full talk power is equipped with the high audio output level available from the microphone. If the public address feature is to the microphone, acoustic feedback...
148GTLE_Eng-Spa
Page 8
...to the strength of standing wave voltage and RF output. PRESS-TO-TALK MICROPHONE. OPERATING PROCEDURE TO RECEIVE 1. Set MODE switch to the RF output power. 3. The receiver will not be heard. 12 Section IV Operation (Continued) 7. Select the desired channel of the upper or the lower sideband and...80 SSB channels. When transmitting, hold the microphone two inches from the AM signal helps to the desired channel. 8. When the MODE switch on COBRA 148GTL. 3. The USB and LSB modes will fit into each channel expanding the 40 AM channels to the "CAL" position, transmit in AM ...
...to the strength of standing wave voltage and RF output. PRESS-TO-TALK MICROPHONE. OPERATING PROCEDURE TO RECEIVE 1. Set MODE switch to the RF output power. 3. The receiver will not be heard. 12 Section IV Operation (Continued) 7. Select the desired channel of the upper or the lower sideband and...80 SSB channels. When transmitting, hold the microphone two inches from the AM signal helps to the desired channel. 8. When the MODE switch on COBRA 148GTL. 3. The USB and LSB modes will fit into each channel expanding the 40 AM channels to the "CAL" position, transmit in AM ...
148GTLE_Eng-Spa
Page 12
... of communications for more interesting, and help fast in the building on a conversation with your destination. • Help law enforcement officers by over-powering them with illegally amplified transmitter power, or illegally high antennas. 3. "Attention all -inclusive: Permitted Yes No Yes No Yes No Yes No Yes No Example Message "A tornado sighted...
... of communications for more interesting, and help fast in the building on a conversation with your destination. • Help law enforcement officers by over-powering them with illegally amplified transmitter power, or illegally high antennas. 3. "Attention all -inclusive: Permitted Yes No Yes No Yes No Yes No Yes No Example Message "A tornado sighted...
Circuit Diagram
Page 2
... 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, 4.7K... Insulator, YD-027 2SC1969, 2SC1306 Bushing, YY-036 2SC1419,2SC1306,2SC1969 Wire Clamper, YY-047 Cord, Speaker, JK-082-003 Cord, DC Power, W-070234 Cable, Flat WF-005 Cable, Flat WF-109 Chassis, Main Case, Top Case, Bottom Case, Holder Bracket, Mounting Holder, Main...,24,26,31,33, 35.42 TR-7,13,25,27 TR-14,15 . BILL OF MATERIAL FOR COBRA 148GTL CIRCUIT SYMBOL IC-1 IC-2 IC-3 IC-4 -
... 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, 4.7K... Insulator, YD-027 2SC1969, 2SC1306 Bushing, YY-036 2SC1419,2SC1306,2SC1969 Wire Clamper, YY-047 Cord, Speaker, JK-082-003 Cord, DC Power, W-070234 Cable, Flat WF-005 Cable, Flat WF-109 Chassis, Main Case, Top Case, Bottom Case, Holder Bracket, Mounting Holder, Main...,24,26,31,33, 35.42 TR-7,13,25,27 TR-14,15 . BILL OF MATERIAL FOR COBRA 148GTL CIRCUIT SYMBOL IC-1 IC-2 IC-3 IC-4 -
Circuit Diagram
Page 3
...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...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,...027 2SC1969, 2SC1306 Bushing, YY-036 2SC1419,2SC1306,2SC1969 Wire Clamper, YY-047 Cord, Speaker, JK-082-003 Cord, DC Power, W-070234 Cable, Flat WF-005 Cable, Flat WF-109 Chassis, Main Case, Top Case, Bottom Case, Holder Bracket,...
...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...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,...027 2SC1969, 2SC1306 Bushing, YY-036 2SC1419,2SC1306,2SC1969 Wire Clamper, YY-047 Cord, Speaker, JK-082-003 Cord, DC Power, W-070234 Cable, Flat WF-005 Cable, Flat WF-109 Chassis, Main Case, Top Case, Bottom Case, Holder Bracket,...
Circuit Diagram
Page 1
... 21731 530 0195 12s, 4 7K rr7 0177 22DP - 0205 j0.1u L521 555 564030 5444-044 PA 0170 10009 • • 777 0170 AUDIO 220P POWER AMP ICS 01572174f R195 47 0150 el 33u TR43 comma 0183 0301 .11, 3.318 :ND 0152 99 022u =.0117 .10 01/31 ree ; 220u 1000P.... C109 44; T4700P _,1 591 N 4 01.1M/3W ... 50402 OH/OFF /77 14.!: 05 12401 .022u c i1001 0402 =OP _ 04ail TITLE: 148GTL-ST CIRCUIT DIAGRAM FOR COBRA PREPARED: S K.CNEUNG -
... 21731 530 0195 12s, 4 7K rr7 0177 22DP - 0205 j0.1u L521 555 564030 5444-044 PA 0170 10009 • • 777 0170 AUDIO 220P POWER AMP ICS 01572174f R195 47 0150 el 33u TR43 comma 0183 0301 .11, 3.318 :ND 0152 99 022u =.0117 .10 01/31 ree ; 220u 1000P.... C109 44; T4700P _,1 591 N 4 01.1M/3W ... 50402 OH/OFF /77 14.!: 05 12401 .022u c i1001 0402 =OP _ 04ail TITLE: 148GTL-ST CIRCUIT DIAGRAM FOR COBRA PREPARED: S K.CNEUNG -