cobra 19 dx iv tuning

Cobra 19 DX IV Tuning: The Ultimate Guide for CB Enthusiasts

Cobra 19 DX IV is a popular choice for CB enthusiasts as it offers a range of features that make it stand out from its competitors. However, to get the best out of this CB radio, it’s important to tune it properly. In this article, we’ll cover all the essential steps you need to follow to tune your Cobra 19 DX IV for optimal performance.

Step 1: Antenna Adjustment

The first step in tuning your Cobra 19 DX IV is to adjust your antenna properly. Your antenna’s length should match your CB radio’s wavelength, which is 36 feet or 1/2 wavelength. You can adjust it by either trimming or adding wire. Once you’ve made the necessary adjustments, you should test the antenna with the SWR meter to ensure that it’s properly tuned.

Step 2: SWR Adjustment

After adjusting your antenna, the next step is to adjust the SWR or standing wave ratio. A high SWR can lead to poor reception, weak transmission, and possibly damage your CB radio’s internal components. To adjust the SWR, connect your SWR meter in-line with the antenna and the Cobra 19 DX IV. Follow the manufacturer’s instructions to adjust the SWR to a safe level. The ideal SWR reading should be 1:1.5.

Step 3: Power Output and Audio Adjustment

Now that your SWR is properly adjusted, it’s time to adjust the Cobra 19 DX IV’s power output and audio levels. Set the power output to the maximum level that’s allowed by law, which is 4 watts for CB radios. Adjust the audio level by using the built-in audio control or the external speaker’s volume control. It’s important to set the audio level to a comfortable level that doesn’t cause distortion or background noise.

Step 4: Testing and Fine-Tuning

After you’ve completed all the previous steps, it’s time to test your Cobra 19 DX IV’s performance. You can do this by conducting a range test with other CB radios or listening to channels for any unwanted noises, such as static or distortion. Fine-tune your radio further by experimenting with different microphone gain levels, noise filters, and channel settings.


Tuning your Cobra 19 DX IV is essential for optimal performance and ensuring that you get the most out of your CB radio. Follow the steps discussed in this article to achieve the best results. Always remember to use your CB radio responsibly and follow the FCC guidelines and regulations for legal use of CB radios.

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