Question: Can I Use 75 Ohm Coax For CB?

Where is the best place to mount a CB antenna?

The best place for your standard antenna is the center of your roof, where you will have the greatest ground plane coverage.

When you install a CB antenna on the fender, bumper, or anywhere else around the edge of your vehicle, you will have a weaker signal going away from the vehicle..

Does coax length affect SWR?

“the length of the feedline will not change the swr it will change the apparent reading depending on what wave length you read the swr at. . just as adding a signifigant length of coax, the resultant loss will look like a lower swr.”

Can SWR be too low?

To answer the original question very simply, no, SWR can’t be too low. It can be too high. And, an swr of something around 1.5:1 isn’t a problem especially with the average 102″ whip (in fact, it’s pretty good).

Is rg6 a 75 ohm?

An RG-6/U coaxial cable has a characteristic impedance of 75 ohms. The term, RG-6, is generic and is applied to a wide variety of cable designs, which differ from one another in shielding characteristics, center conductor composition, dielectric type and jacket type.

Can you use TV coax for CB?

The cable TV coax its self won’t work as an antenna. It also won’t work well for a feed line to a CB antenna as it is 75ohm cable and CB’s are designed for 50ohm feed line and antenna. Of course you could connect it to the radio, you might hear something, probably not much. Just don’t try to transmit.

Does CB coax length matter?

Just be sure to porperly 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. If you do select a coax length different than the 18 feet, there may be additional antenna adjustments that you will need to make in order to achieve good SWR reeadings.

Is a longer CB antenna better?

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.

Why is my SWR so high?

Short. The most common cause of a high SWR is an antenna shorted to ground. There are two places a short can occur in a CB antenna system, in the coax and in the antenna stud.

Is rg6 50 or 75 ohm?

So a 50 Ohm cable provides much better results than a 75 Ohm cable. Most home cell phone signal boosters come in 75 Ohm systems with 75 Ohm cables such as RG-6 with F-connectors. Most commercial cell phone signal boosters come in 50 Ohm systems with 50 Ohm cables such as LMR400 with N-connectors.

What is 75 ohm coaxial cable used for?

75-Ohm coaxial cable is primarily used for audio and video. This is the reason why it is used so widely throughout our homes and business premises. Therefore, it saves on cable costs and their labor-intensive re-installation process which is explained below in “About 50-Ohm Coaxial Cable” section.

What is the difference between 50 ohm and 75 ohm coax cable?

Especially when it comes to 50 Ohm vs 75 Ohm coax cables. In short, cables are measured by impedance, how much resistance there is to the flow of electrical energy. The smaller the Ohm, the better the performance. So a 50 Ohm cable provides much better results than a 75 Ohm cable.

Can I use 75 ohm cable instead 50?

Sure, you can use 75 ohm coax instead of 50 ohm. In some cases (such as feeding a dipole), 75 ohm coax may be a better match to the load than 50 ohm. In other cases (such as feeding a vertical), it may be a worse match. You may not even need to do additional matching.

How high does a CB radio antenna need to be?

20 feetIt is no more than 20 feet above the top of the tree or building to which it is mounted. The other factor to keep in mind is that, in general, a larger antenna will work better than a smaller antenna. This rule does have a limit: In general, a CB antenna should be “full sized”.

How long can you run coax cable without loss?

Using coaxial cable increases this distance to 500m (1640.4 feet). For LANs, coaxial cable offers several advantages. It can be run with fewer boosts from repeaters for longer distances between network nodes than either STP or UTP cable.

What does 75 ohm cable mean?

50 and 75 Ohm values refer to the impedance of the coaxial cable. Impedance is a measure of resistance, in the cable, to the flow of electrical energy. … In the case of 50 Ohm cable, it is a data signal that is for the most part being transmitted. Simply put, 75 Ohm is for pictures and 50 Ohm is for information.