Cobra 25 LTD AM-FM 25 LTD AM FM Professional CB Radio Owner’s Manual
Cobra 25 LTD is a professional Citizens Band (CB) radio transceiver that provides reliable communication for a range of personal and professional uses. With 4 watts of power and 40 channels, the Cobra 25 LTD delivers clear and reliable transmissions. Its advanced features, including FM modulation, noise blanker, and signal strength meter, enhance the user experience. Whether you're a truck driver, outdoor enthusiast, or simply need a reliable communication tool, the Cobra 25 LTD is an excellent choice.
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25 LTD AM/FM Professional CB Radio 4W Power / 40 Channels Our Thanks, The CB Story, and Customer Assistance Thank you for purchasing the Cobra 25 LTD AM/FM CB Radio Transceiver. Properly used, this Cobra product will give you many years of reliable service. Citizens Band Radio History Invented by Al Gross in 1945, the CB radio originally served as a method of communication for troops during World War II. After the war, Gross worked to make two-way radios a way of communication for personal use and the CB radio service was established by law in the U.S. in 1949. It wasn’t until the 1970s that technology advanced and the CB market caught on as a method of communication between drivers to report police speed traps and road hazards. The Citizens Band Radio Service consists of 40 channel frequencies that are mostly 10 kHz apart. Transmitter power is limited to 4 watts in the US, and range can vary depending on the terrain and quality of the product. Currently, the Citizens Band service does not require a license for operation, regardless of age, as long as the rules of operation established by the Federal Communication Commission (FCC) are followed. Petition For FCC Part 65 Rule Changes In 2016, Cobra petitioned the FCC to revise Part 95 rules to allow CB radios to use frequency modulation (FM). Cobra contended that FM offers improved speech quality and lower noise interference, which improves the standard of two-way radios and is a benefit to the customer. Through the direct efforts of Cobra Electronics and the enthusiastic support from loyal customers and the distribution network the FCC granted the request. In 2021, Part 95 officially was updated to include FM as an option for two-way radio use. Today, thanks to Cobra Electronics’ petitions to improve the quality of the Citizens Band Radio Service, users can enjoy the benefits of CB radio communication in a range of industries. Customer Support Should you encounter any problems with this product, not understand its features, menu or installation, please refer to the this owner’s manual. If you require further assistance, after reading this manual, we are here to help: Service, Orders & Product Questions For service, product questions and service hours call 800-543-1608 or go to www.cobra.com © 2023 Cobra Electronics Corporation For more information or to order any of our products, please visit our website: www.cobra.com Cobra®, Nothing Comes Close to a Cobra® and the snake design are registered trademarks of Cobra Electronics Corporation, USA. Cobra Electronics Corporation™ is a trademark of Cobra Electronics Corporation, USA. 813-PK0639-001 Owner’s Manual For Assistance Outside the U.S.A. Contact Your Local Dealer A1 Product Features and FCC Regulations 25 LTD AM/FM Pro Series Features BRT/DIM Switch NB/Off Switch Signal Strength Meter CB/ANL/PA Switch Power On/Off/ 4-Pin Microphone Volume/Squelch Control Jack Dynamike Control Replacement Parts & Accessories RX (Receive)/ TX (Transmit) LED Indicator AM/FM Switch LED Channel FM Display Indicator RF Gain Control CB MOUNTING BRACKET 741-001 MICROPHONE HANGER BRACKET 426-002-N-001 48" 12V POWER CORD 634-081-9-001 THUMBSCREWS TO MOUNTING BRACKET HG M75 PREMIUM 4-PIN POWER MICROPHONE HG M73 (PREMIUM DYNAMIC 4-PIN REPLACEMENT CB MICROPHONE HG M77 REPLACEMENT PREMIUM 4-PIN NOISE CANCELING CB MICROPHONE HG S500 DYNAMIC EXTERNAL SPEAKER WITH NOISE FILTER AND TALK BACK HG S300 DYNAMIC EXTERNAL SPEAKER WITH NOISE FILTER HG S100 DYNAMIC EXTERNAL SPEAKER Push-To-Talk (PTT) Button External Speaker Jack 4-Pin Microphone Connector FCC Compliance A2 DESCRIPTION AM/FM/Channel Selector Public Address Speaker Jack Antenna Connector PART/MODEL # 251-199-9-001 Power Jack Any changes or modifications not expressly approved by Cobra Electronics could void your authority to operate the equipment. This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Compliance Any changes or modifications not expressly approved by Cobra Electronics could void your authority to operate the equipment. A3 Nothing Comes Close to a Cobra® Go to cobra.com for replacement parts and accessories. Questions or Need Help? Please call Cobra Customer Care at 800-543-1608. 20 Contents Cobra 29 LTD Classic Our Thanks,The CB Story, Customer Support ..................................................................... A1 Product Features .................................................................................................................... A2 FCC Regulations ..................................................................................................................... A3 Installation Location ............................................................................................................................... 2 Mounting and Connection..................................................................................................... 2 Antennas Antennas.............................................................................................................................. 4 Operation Turning On Your CB.............................................................................................................. 5 Setting AM/FM ..................................................................................................................... 5 Setting Channel Selector...................................................................................................... 5 To Receive ........................................................................................................................... 6 S-Meter................................................................................................................................ 6 NB/Off (Noise Blanker Switch) ............................................................................................. 6 Bright/Dim Switch ................................................................................................................ 6 RF Gain Control .................................................................................................................... 7 Setting Squelch.................................................................................................................... 7 To Transmit.......................................................................................................................... 7 Setting Dynamike®............................................................................................................... 8 RF Meter .............................................................................................................................. 8 External Speaker .................................................................................................................. 8 PA (Public Address) .............................................................................................................. 9 ANL (Automatic Noise Limiter) Switch .................................................................................10 Base Station Operation .......................................................................................................10 Temporary Mobile Operation .............................................................................................. 10 How Your CB Can Serve You................................................................................................ 11 CB 10 Codes ...................................................................................................................... 13 Frequency Ranges ..............................................................................................................14 25 LTD Classic Specifications .............................................................................................15 Limited 2-Year Warranty .......................................................................................................16 Need Help? ............................................................................................................................ 17 FCC Statement ....................................................................................................................... 18 Replacement Parts & Accessories .......................................................................................... 20 1 Installation Installation Location Installation Plan for the location of the CB transceiver and microphone bracket before starting the installation. Select a location that is convenient for operation, yet does not interfere with the driver or passenger. The transceiver is usually mounted to the underside of the dash with the microphone bracket beside it. NOTE: The transceiver is held in the universal mounting bracket by two thumbscrews which allow for adjustment to a convenient angle. The bracket includes two self-tapping screws and star washers. The mounting must be mechanically strong and conveniently located. Mounting and Connection 1. Hold the radio with the mounting bracket in the exact desired location. If there is no interference, remove the bracket and use it as a template to mark the location for the mounting screws. 2. Drill the holes and secure the bracket. 3. Connect the antenna cable plug to the receptacle marked “ANT” on the back of the unit. Installation 4. Connect the red lead of the DC power cord to an accessory 12 volt fuse or directly to the battery. NOTE: Connecting to an accessory fuse prevents the unit from being left on accidentally, and also permits operating the unit without running the engine. 5. Connect the black lead to the negative side of the vehicle electrical system. This is usually the chassis. Any convenient location with a good electrical contact (remove paint) may be used. NOTE: Before installing the CB radio, visually check the vehicle’s battery connection to determine which terminal is positive or negative. A negatively grounded vehicle has its negative lead grounded to the chassis. 6. Plug power cable into back of unit marked “Power”. Be sure to observe polarity markings. 7. The microphone can be mounted to either side of the CB using the supplied screws. Alternatively the microphone can be mounted to the dash or any convenient location. 29 LTD CLASSIC FM CB. 8. Attach the microphone to the front of the NORMAL NOTE: If the microphone is not connected, audio will not be heard at the speaker. PUSH AM/FM 2 3 Antennas Operation CB Antenna Turning On Your CB Since the maximum allowable power output of the transmitter is limited by the FCC, the antenna is critical in affecting transmission distance. Only a properly matched antenna system will allow maximum power output. Cobra loaded type antenna models are highly recommended for most installations. Consult your Cobra dealer for further details, or call 800-543-1608 and speak to a Cobra representative. A standard antenna connector is provided on the transceiver for easy connection. Make sure the power cord, antenna and microphone are connected to their proper connectors before starting. AM 1. The CB/PA button should be in the CB position. FM AM 2. Rotate the On/Off Volume knob clockwise to a normal listening level. FM For optimum performance in passenger cars the ideal antenna location is on the center of the roof. Second choice is on the center of the trunk. Because many newer trucks feature fiberglass door skins, the outside mirror must be grounded to the chassis via a ground strap when the antenna is mounted on the mirror bracket. 3-way combination antennas are also available which allow reception on the AM and FM commercial broadcast bands and support receive and transmit operation on the CB radio band. However, this type of antenna usually results in less than optimal receive and transmit performance range when compared to a dedicated, high performance CB radio antenna. Setting AM/FM AM FM Cobra offers CB antenna and mounting solutions that can be purchased online. Please visit www.cobra.com, or if you'd like to speak with an expert, please call 1-800-543-1608 and our Customer Care Group can assist. AM FM FM AM 4 The 25 LTD AM/FM CB allows for communications on either AM or FM modes. Each mode operates under Channels 1 - 40. AM is the default mode. To change between AM and FM modes move the AM/FM slide switch to the desired operating mode. Once selected a green indicator will appear to the right of the displayed channel and indicate you are in FM Mode. Setting Channel Selector Select one of forty channels. The selected channel is indicated by the LED readout directly above the channel selector knob. 5 Operation Operation To Receive AM FM Rotate the On/Off Volume knob clockwise. While receiving the RX/TX LED will be illuminated and the lower portion of the meter will show the incoming signal strength. RF Gain Control FM Rotate the RF Gain knob counterclockwise to reduce gain in strong signal areas. In weak signal areas turn clockwise to increase gain. Setting Squelch S-Meter AM The S-Meter swings proportionately to the strength of the incoming signal when receiving. FM NB/OFF (Noise Blanker) Switch AM FM AM When switched to NB the RF Noise Blanker is activated, providing increased noise filtration. When switched to OFF all noise filtration will be turned off. NOTE: The RF noise blanker is very effective in reducing repetitive noises such as ignition interference. FM AM FM Bright/Dim Switch AM FM Switch to BRT or DIM to control the brightness of the channel indicator and multi-function meter for day or nighttime driving. Squelch (SQ) is used to cut off or eliminate background noise in the absence of an incoming signal (when you are not talking). 1. Full clockwise rotation closes the “gate” allowing only very strong signals to enter. 2. Full counterclockwise rotation opens the “gate” allowing all signals in. 3. To achieve the Desired Squelch Setting (DSS), turn the Squelch control counterclockwise until you hear noise. Now turn the control clockwise just until the noise stops. This is the DSS. To Transmit AM FM 6 The RF Gain is used to optimize reception in strong or weak signal areas. AM 1. Select the desired channel. CAUTION: Be sure the antenna is properly connected to the radio before transmitting. Prolonged transmitting without an antenna or a poorly matched antenna could cause damage to the transmitter. Be sure to read the FCC Part 95 Rules and Regulations before transmitting. 7 Operation Operation PA (Public Address) Setting Dynamike® AM FM This controls the microphone sensitivity (outgoing audio level). 1. Connect an external PA speaker to the PA jack on the rear panel. 2. Initially, set fully clockwise so that the maximum voice volume is available. Dynamike® may have to be reduced in some conditions. NOTE: The speaker should have 8-ohm impedance and be rated to handle at least 4.0 watts. 3. Push and hold the mic button to transmit. When transmitting, hold the microphone two inches from your mouth and speak in a clear, normal voice. Release the mic button to receive. 2. Set the CB/PA switch to the PA position. AM FM NOTE: The speaker should be directed away from the microphone to prevent acoustic feedback. 3. Push and hold the microphone button and speak in a normal voice. Your voice will now transmit through the PA speaker. RF Meter This meter swings proportionately to the RF output (outgoing signal) while transmitting. External Speaker Connecting an external speaker can provide louder and clearer incoming audio. Connect an external speaker to the speaker jack on the rear panel. NOTE: The external speaker should have 8-ohm impedance and be rated to handle at least 4.0 watts. When the external external speaker is plugged in, the internal speaker is automatically disconnected. AM 4. Adjust the PA speaker volume with the Dynamike® control. FM Cobra external speakers are rated at 10 watts. 8 9 Operation How Your CB Can Serve You ANL (Automatic Noise Limiter) Switch AM FM When switched to CB/ANL the Automatic Noise Limiter is activated. This helps reduce noise created by the vehicle’s electronics. Base Station Operation (From 120V AC House Current) To operate the transceiver from home or office you will need a 13.8 volt DC Power Pack rated at a minimum of 2 amps, and a properly installed base station antenna. WARNING: Do not attempt to operate this transceiver by connecting it directly to 120VAC. 1. Simply connect the red (+) and black (-) leads of the transceiver to the corresponding terminals of the power pack. 2. Plug the power cable into the back of the unit marked “Power”. Be sure to observe polarity markings. 3. Connect a properly installed and matched base station antenna. Temporary Mobile Operation For temporary mobile operation you may want to purchase an optional automobile power adapter from your Cobra dealer. This adapter and a magnetic mount antenna allow you to quickly “install” your transceiver for temporary use. 10 Your CB Radio Can: • Warn of traffic problems • Provide weather and road data • Provide help in event of an emergency • Provide direct contact with home or office • Assist police by reporting erratic drivers • Get “local information” to find destination • Communicate with family and friends • Suggest spots to eat and sleep • Keep you alert while traveling A Few Rules You Should Know: A. Conversations cannot last more than 5 minutes with another station. A one minute break is required to let others use the channel. B. You cannot blast others off the air by use of illegally amplified transmitters or illegally high antennas. C. You cannot use CB to promote illegal activities. D. Profanity is not allowed. E. You may not transmit music with a CB. F. Selling of merchandise and/or services is prohibited. Set Channel 9 For Emergencies Be sure antenna is properly connected. CB Distress Data When transmitting an emergency, you should request a “REACT BASE” and provide the CB distress data (called CLIP): C all Sign Identify yourself. L ocation Be exact. I njuries Number. Type. Trapped? P roblem Give details and help needed. Transmit CLIP repeatedly so any monitor can assist. NOTE: If no response on channel 9, try channels 19 or 14. 11 How Your CB Can Serve You Operation The FCC gives these examples of permitted and prohibited messages for channel 9. These are only guidelines and not all-inclusive: Operation Citizen Bands have adopted the “10-CODES” for standard questions and answers. These codes provide quick and easy communication, especially in noisy areas. The following are some of the more common codes and meanings: Permitted Example Message Code Meaning Code Meaning Yes “Tornado sighted six miles north of town.” 10-1 Receiving poorly 10-34 Trouble at this station 10-2 Receiving well 10-35 Confidential information 10-3 Stop transmitting 10-36 Correct time is 10-4 OK, message received 10-37 Wrecker needed at 10-5 Relay message 10-38 Ambulance needed 10-6 Busy, stand by 10-39 Message delivered 10-7 Out of service, leaving 10-41 Turn to channel 10-8 In service, subject to call 10-42 Traffic accident at 10-9 Repeat message 10-43 Traffic tie up at 10-10 Transmission completed standing by 10-44 Have a message for 10-11 Talking too rapidly 10-45 All units within range please report 10-12 Visitors present 10-50 Break channel 10-13 Advise weather/roads 10-60 What is next message number? Make pick up at 10-62 Unable to copy. Use phone 10-17 Urgent business 10-63 Net directed to No Yes No Yes No “Post number 10. No tornado sighted.” “Out of gas on I-95 at mile marker 211.” “Out of gas in my driveway.” “Four car accident on I-94 at Exit 11. Send police and ambulance.” “Traffic moving smoothly on I-94.” Yes “Weather Bureau has issued thunderstorm warning. Bring sailboat into port.” 10-16 10-18 Anything for us? 10-64 Net clear No “Attention motorists. Weather Bureau advises snow tomorrow will accumulate 4 to 6 inches.” 10-19 Return to base 10-65 Awaiting your next message/assignment 10-20 My location is 10-67 All units comply 10-21 Call by phone 10-70 Fire at 10-22 Report in person to 10-71 Proceed, transmission in sequence 10-23 Stand by 10-77 Negative contact 10-24 Completed last assignment 10-81 Reserve hotel room for 10-25 Can you contact 10-82 Reserve room for 10-26 Disregard last info 10-85 My address is 10-27 Moving to channel 10-91 Talk closer to mic 10-28 Identify your station 10-93 Check my frequency on this channel 10-29 Time is up for contact 10-94 Give me a long count 10-30 Does not conform to FCC rules 10-99 Mission completed, all units secure 10-33 Emergency traffic 10-200 Police needed at Yes No 12 CB 10-Codes “Fire in building at 539 Main, Evanston.” “Halloween patrol number 3. All quiet.” 13 Specifications Frequency Ranges The Cobra 25 LTD Classic transceiver represents some of the most advance AM/FM two-way radios used as a Class D station in the Citizens Band Radio Service. These model features an advanced Software Defined frequency synthesizer IC providing high stability coverage of all 40 CB channels. CB Channel Channel Freq. In MHz CB Channel Channel Freq. In MHz 1 26.965 21 27.215 2 26.975 22 27.225 3 26.985 23 27.255 4 27.005 24 27.235 5 27.015 25 27.245 6 27.025 26 27.265 7 27.035 27 27.275 8 27.055 28 27.285 9 27.065 29 27.295 10 27.075 30 27.305 11 27.085 31 27.315 12 27.105 32 27.325 13 27.115 33 27.335 14 27.125 34 27.345 15 27.135 35 27.355 16 27.155 36 27.365 17 27.165 37 27.375 18 27.175 38 27.385 19 27.185 39 27.395 20 27.205 40 27.405 GENERAL Channels Frequency Range Frequency Tolerance Frequency Control Operating Temperature Range Microphone Input Voltage Current Drain Size Weight Antenna Connector Meter TRANSMITTER Power Output Modulation Frequency Response Output Impedance RECEIVER Sensitivity CB - 40 CH CB - 26.965 to 27.405 MHz 0.005 % PLL (phase lock loop) Synthesizer -30° C to + 50° C Plug-in dynamic 13.8VDC nom. (negative ground) Transmit: AM full mod., 1.5A (maximum) Receive: Squelched, 0.3A; full audio output, 1.2A (nominal) 2.25” D x 7.25” W x 9.25” H 5.6 lbs. UHF; SO-239 illuminated: indicates power output and relative received signal strength 4 watts AM (Amplitude Modulation) and FM (Frequency Modulation) 300 to 3000 Hz 50 ohms, unbalanced RF Gain Control Noise Blanker Squelch Audio Output Power Frequency Response Distortion Built-in Speaker External Speaker (Not supplied) AM Sensitivity Less than 1uV for 10 dB (S+N)/N FM Sensitivity -116 dBm @ 12 dB SINAD typical 6 dB @ 7 kHz, 60 dB @ 10 kHz 80 dB, typical 60 dB, typical Double Conversion: 1st: 10.695 MHz, 2nd: 455 kHz Less than 10 dB change in audio output for inputs from 10 to 50,000 microvolts Adjustable for optimum signal reception RF type Adjustable; threshold less than 1µV 4 watts 300 to 3000 Hz Less than 5% @3 watts @ 1000 Hz 8 ohms, 5w 8 ohms; disables internal speaker when connected PA SYSTEM Power Output External Speaker for PA 4 watts into external speaker 8 ohms, when PA-CB switch is in PA Selectivity Image Rejection Adjacent-Channel Rejection IF Frequencies Automatic Gain Control (AGC) (SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE) 14 15 Limited 2-Year Warranty Warranty Terms: Cobra warrants your product against all defects in materials and workmanship for a period of two (2) years from the date of original purchase. Cobra, at our sole discretion, will repair or replace your product (with the same or comparable product) free of charge. Cobra will not pay shipping charges that you incur for sending your product to us. Products received COD will be refused. To make a warranty claim, we will require proof or purchase in the form of an invoice or receipt. No proof of purchase is required for factory direct purchases. Warranty Exclusions: Warranty does not apply to your product under any of the following conditions: 1. The serial number has been removed or modified. 2. Your product has been subjected to misuse or damage (including water damage, physical abuse, and/or improper installation). 3. Your product has been modified in any way. 4. Your receipt or proof-of-purchase is from a non-authorized dealer or internet auction site including E-bay, U-bid, or other nonauthorized resellers. LIMITATION OF WARRANTY: EXCEPT AS EXPRESSLY PROVIDED HEREIN, YOU ARE ACQUIRING THE PRODUCT “AS IS” AND “WHERE IS”, WITHOUT REPRESENTATION OR WARRANTY. COBRA SPECIFICALLY DISCLAIMS ANY REPRESENTATION OR WARRANTY INCLUDING, BUT NOT LIMITED TO THOSE CONCERNING THE MERCHANTABILITY AND SUITABILITY OF THE PRODUCT FOR A PARTICULAR PURPOSE. COBRA SHALL NOT BE LIABLE FOR CONSEQUENTIAL, SPECIAL OR INCIDENTAL DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES ARISING OUT OF THE USE, MISUSE OR MOUNTING OF THE PRODUCT. The above limitations or exclusions shall be limited to the extent they violate the laws of any particular state. Cobra is not responsible for products lost in shipment between the owner and our service center. General Warranty Information Each product we manufacture is covered by our factory warranty. While each product may have unique components and policy, the general guideline below will apply to most Cobra products. All Cobra products purchased factory-direct or from our Authorized Resellers will come with a full one to three (1-3) year warranty from the date of the original retail purchase (see policy statement above for full warranty details and exclusions). Standard accessories packaged with each model will have a one-year factory warranty. Accessory items have a one-year factory warranty. Shipping to our facility is not covered in our warranty. Return shipping is included within the US. This warranty is non-transferrable. For the sake of clarity, ‘repair or replace the Product or its defective part’ does not include removal or installation work, costs or expenses which include but are not limited to labor costs or expenses. Cobra will not be responsible for lost packages. 16 Need Help? If you have any questions about operation or installing your new Cobra product, PLEASE CONTACT COBRA FIRST…do not return this product to any retail store. The contact information for Cobra will vary depending on the country in which you purchased and utilize the product. For the latest contact information, please go to www. cobra.com/support For products purchased in the U.S.A. you may call 800-543-1608. For products purchased in the U.S.A., if your product should require factory service, please please go to www.cobra.com/support and follow the instructions for returning your product to the Cobra Factory Service Department for service. Should there be any problems with this product or further information is needed on its features please visit www.cobra.com for support, frequently asked questions, Declarations of Conformity, and full manuals. For Products Purchased Outside the U.S.A. or Canada Please contact your local dealer for product service information. 17 FCC Statement FCC Part 15.19 Warning Statement THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. FCC Part 15.21 Warning StatementNOTE: THE GRANTEE IS NOT RESPONSIBLE FOR ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT. FCC Part 15.105(b) Warning Statement NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. IC RSS-GEN, Sec 8.4 Warning Statement ENGLISH: This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. FCC Statement IC RSS-GEN, Sec 8.3 Warning Statement ENGLISH: This radio transmitter (identify the device by certification number, or model number if Category II) has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Immediately following the above notice, the manufacturer shall provide a list of all antenna types approved for use with the transmitter, indicating the maximum permissible antenna gain (in dBi) and required impedance for each. FRENCH: Le présent émetteur radio (identifier le dispositif par son numéro de certification ou sonnuméro de modèle s’il fait partie du matériel de catégorie I) a été approuvé par Industrie Canada pour fonctionner avec les types d’antenne énumérés ci-dessous et ayant un gain admissible maximal et l’impédance requise pour chaque type d’antenne. Les types d’antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l’exploitation de l’émetteur. RF Exposure Statement ENGLISH: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 40cm between the radiator & your body. The device is in compliance with RF exposure guidelines, users can obtain Canadian information on RF exposure and compliance. The minimum distance from body to use the device is 40cm. FRENCH: Cet équipement est conforme aux limites d’exposition aux rayonnements de la FCC établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec une distance minimale de 40 cm entre le radiateur et votre corps. Après examen de ce matériel aux conformité ou aux limites d’intensité de champ RF, les utilisateurs peuvent sur l’exposition aux radiofréquences et compliance d’acquérir les informationscorrespondantes. La distance minimale du corps à utiliser le dispositif est de 40cm. FRENCH: Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes : (1) l’appareil ne doit pas produire de brouillage, et (2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. 18 19 ">

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Key features
- FM modulation for improved speech quality and reduced noise
- 4 watts of power for extended range
- 40 channels for a variety of communication options
- Noise blanker to reduce background noise
- Signal strength meter for optimal antenna positioning
- Public address speaker jack for announcements
- External speaker jack for enhanced audio output
- 4-pin microphone connector for compatibility with a range of microphones
Frequently asked questions
To turn on the Cobra 25 LTD, simply rotate the Power On/Off/Volume/Squelch Control knob clockwise.
To set the channel on the Cobra 25 LTD, rotate the AM/FM/Channel Selector knob to the desired channel number.
To use the noise blanker on the Cobra 25 LTD, press the NB/Off (Noise Blanker Switch) button. The NB/Off LED indicator will illuminate when the noise blanker is activated.