background image

3

Nothing 

comes close to a Cobra

®

2

English

Specifications

Specifications

Specifications

General

Frequency Range

28.0 to 29.7 MHz

Frequency Control

Phase Lock Loop (PLL) synthesizer

Frequency Stability

0.005%

Operating 

Temperature Range

-22°F to 122°F (-6°C to + 50°C)

Antenna Impedance

50 ohms

Antenna Connector

Standard SO 239 type

Microphone

Plug-in dynamic with Press-To-Talk switch and coiled cord

Input Voltage

13.8 V DC nominal, 15.9 V max., 10.0 V min.

(positive or negative ground)

Current Drain

Transmit: 3.0 A

Receive (squelched): 0.5 A

Receive (maximum audio output): 1.2 A

Size

2

3

8

" (H) x 7

7

8

" (W) x 9

3

4

" (D)

[6 cm (H) x 20 cm (W) x 24.8 cm (D)]

Weight

4.8 lbs.

Meter (3-in-1)

Illuminated – indicates relative output power, 

received signal strength, and SWR

Built-in Speaker

4 watts

Transmitter

Power Output

Low – 4 watts; High – 15 watts

Frequency Response

300 to 3,000 Hz

Frequency Tolerance

500 Hz

Transmit Distortion

2%

Spurious Harmonic 

Emission

-65 dB

Output Indicators

Meter shows relative RF output power and SWR. 

Transmit LED glows red when transmitter is in operation.

Antenna Warning LED

Glows red when SWR is greater than 3.0.

Specifications

Receiver

Sensitivity

AM: 0.5 µV for 10 dB S/N

FM: 0.25 µV for 12 dB S/N

Audio Frequency 

Response

300 to 3,000 Hz

Maximum Signal 

to Noise Ratio

45 dB

Image Rejection

75 dB

Adjacent 

Channel Rejection

65 dB

RF Gain Control (AGC)

40 dB – adjustable for optimum signal reception

Squelch

Adjustable – threshold less than 0.5 µV

Automatic Noise 

Limiter (ANL)

Switchable

Noise Blanker (NB)

Switchable

Receive Indicators

Meter shows relative signal strength.

Receive LED glows green when receiving a signal.

PA System

Power Output

4 watts into PA speaker

Speaker for PA 

(Not Supplied)

8 ohms

External Speaker

Power Output

4 watts into external speaker

External Speaker 

(Not Supplied)

8 ohms

(Specifications subject to change without notice)

Your Mobile Radio

Your Mobile Radio

 

Summary of Contents for 150GTLDX

Page 1: ...A1 Owner s Manual AMATEUR 10 METER MOBILE RADIO 1 50 GTL DX Printed in Philippines Part No 480 216 P Version A Nothing comes close to a Cobra English...

Page 2: ...tion Our Thanks to You Thank you for purchasing a Cobra amateur mobile radio Properly used this Cobra product will give you many years of reliable service FCC License Required The United States Federa...

Page 3: ...nter 4Mic Gain Control Allows increased voice clarity by dynamically boosting microphone This Cobra radio has a superior receiver that includes an RF gain control and noise blanker circuitry as well a...

Page 4: ...luded in this Package 4 Installation and Connection 5 Operation 8 Controls 9 Frequency 12 Indicators 14 Microphone 14 Operating to Receive 15 Operating to Transmit 15 Maintenance 16 Government Regulat...

Page 5: ...3 000 Hz Frequency Tolerance 500 Hz Transmit Distortion 2 Spurious Harmonic Emission 65 dB Output Indicators Meter shows relative RF output power and SWR Transmit LED glows red when transmitter is in...

Page 6: ...or interfere with the installation 2 Connect the antenna cable plug to the standard receptacle ANT on the rear panel Most antennas are terminated with a type PL 259 plug and mate with the receptacle...

Page 7: ...eristic will be observed only at extreme distances A standard antenna connector type SO 239 is provided on the transceiver for easy connection to a standard PL 259 cable termination If the transceiver...

Page 8: ...y to the point where the receiver background noise or ambient background noise is eliminated Turn fully counterclockwise then slowly clockwise until the receiver noise disappears Any signal to be rece...

Page 9: ...you easily measure your antenna condition To operate this function select a frequency near the middle of the range such as 28 850 MHz or the one you plan to use most With the power on set the S RF SW...

Page 10: ...display indicates whether the third value after the decimal point in the frequency is 0 or 5 if the right hand decimal is visible on the display the third value is 5 if it is not visible the third val...

Page 11: ...for the supplied low impedance 500 ohm dynamic microphone see the alternate microphones and installation section on page 17 Operating to Receive To begin operating your radio 1 Be sure the power sourc...

Page 12: ...ca Alternate Microphones and Installation For best results the user should select a low impedance dynamic type microphone or a transistorized microphone Transistorized type microphones have a low outp...

Page 13: ...ng If the microphone jack is used to hold the pin receptacle during soldering operation best results are obtained when the connections to pins 1 and 3 are made first and then the connections to pins 2...

Page 14: ...e fading ARRL Q Signals QSD Is my keying defective Your keying is defective QSG Shall I send ____ messages at a time Send ____ messages at a time QSK Can you hear me between your signals and if so can...

Page 15: ...tion USA Cobra Electronics Corporation is a trademark of Cobra Electronics Corporation USA Product Service If you have any questions about operation or installing your new Cobra product or if you are...

Page 16: ...stems HighGear Accessories CobraMarine VHF Radios Power Inverters Accessories Order Form Name Address No P O Boxes City State Province Zip Postal Code Country Telephone Credit Card Number Type Visa Ma...

Page 17: ...ra line of quality products includes CB Radios microTALK Radios Radar Laser Detectors Safety Alert Traffic Warning Systems Handheld GPS Receivers Mobile GPS Navigation Systems HighGear Accessories Cob...

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