Quick Answer: Do I need a spring on my CB antenna?

A spring is beneficial for most CB antennas, provided you are using a good, conductive spring of the correct size for your antenna. You should definitely add a spring if there is a chance your antenna will strike limbs or other obstacles, or when you need to add length to an antenna for SWR improvement.

Does a CB antenna need to be grounded?

Ground Your Antenna Mount



If you’re using a standard CB antenna (i.e., anything except a no ground plane, or NGP, kit), you’ll need to make sure your antenna mount is solidly grounded to the vehicle’s chassis. … To ensure a good ground, check that your mount has a direct metal-on-metal connection to your vehicle’s frame.

Why do CB antennas have coils?

To resonate at a certain frequency and match the output impedance of the transmitter (In this case around 27MHz and 50 Ohms) the antenna needs to be a certain length. The coils you see allow the physical length to be reduced but the electrical length to be maintained.

What is an acceptable SWR reading?

SWR 1.0-1.5: The ideal range! If your SWR is under 1.5, you’re in great shape. … SWR 1.5 – 1.9: There’s room for improvement, but SWR in this range should still provide adequate performance. Occasionally, due to installations or vehicle variables, it’s impossible to get SWR lower than than this.

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Where does the plastic washer go on a CB antenna mount?

Ok, first make sure the plastic washer on the antenna stud is on top of the bracket not bottom, and beveled edge of that washer goes down. 2. If you have not set swr on that antenna, do so, it will help.

What is the best height for a CB antenna?

Generally, the higher the antenna is above ground, the better it will perform. Good practice is to install your vertical antenna about 5 to 10 feet above the roof line and away from power lines and obstructions. Remember that the FCC limits your antenna height to 60 feet.

Why is my CB not transmitting?

Make sure the connections are tightened. Ensure that the microphone pins on the radio are making a connection with the microphone plug. … Be sure you are pressing the CB microphone button all the way in. If it is a power mic or echo mic, make sure there is a battery in it!

How long should a CB antenna cable be?

We recommend 18 feet of coax even if you don’t need that much. If you use a length that is shorter or longer, you might risk having trouble achieving good SWR readings. Properly store any excess coax in a figure 8, about one foot in length, and bound in the middle- it should look like a long, skinny 8.

Does CB antenna length matter?

Yes, taller/longer is better for range of distance when it comes to an antenna and the optimal antenna length is 1/4 wavelength. That translates to 102 inches (8.5 feet), too tall to be practical for most mobile applications. So, antenna designers have devised solutions such as coils.

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