- How do I adjust my CB antenna?
- What should SWR be on CB?
- Why does my CB have so much static?
- How do I know if my CB antenna is bad?
- Does coax length affect SWR?
- Can I use 75 ohm coax for CB?
- What is the longest range CB radio?
- Is 1.5 SWR good?
- Does SWR affect reception?
- How do I test my antenna cable?
- Is a longer CB antenna better?
- How far can a CB radio reach?
- What is the best height for a CB antenna?
- How long should my CB coax be?
- What is the most powerful CB radio?
- Will a CB work without antenna?
- Why is my SWR so high?
- Are CB radios obsolete?
How do I adjust my CB antenna?
CB Antenna Tuning InstructionsThe first thing you need to do is find a suitable location to park your vehicle.
The next step is to hook up the SWR meter.
Now you are ready to measure the SWR on a few different channels.
Set the switch on the SWR meter to “FWD.”Turn the radio to channel 1.Key the microphone (depress the button and hold it).More items….
What should SWR be on CB?
The goal is to set the antenna to the lowest SWR readings possible, evenly across the 40 channels- for example, the reading on channel 1 and 40 at the same at 1.5. By having the SWR readings match on channel 1 and 40, your radio will perform well on any of the channels within the 40 channel bandwidth.
Why does my CB have so much static?
CB radios can be affected by engine motions, cellular broadcasts, and electrical wires which can cause white noise and static on the CB, reducing the radio’s effectiveness. Aside from the filters, using the squelch function on the radio can help reduce the noise.
How do I know if my CB antenna is bad?
Testing for a Defective CB AntennaUsing your multimeter, touch one of the probes to the metallic end of the antenna. For fiberglass antennas, this will usually be the tunable tip on the antenna’s end. … Touch the other probe to the metallic threads at the end of the antenna. … As you maintain contact with both probes, measure the circuit’s resistance.
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 I use 75 ohm coax for CB?
RG-59 and RG-6 are 75 Ohm coaxial cables designed for cable television applications, they tend to have wide frequency response and low line loss. … You can use these cables with a 50 Ohm amateur radio antenna system, but because of the impedance mismatch, your SWR will be a little higher.
What is the longest range CB radio?
Cobra 148 GTLBest Long Range CB – The Cobra 148 GTL Our favorite SSB equipped radio is the Cobra 148 GTL. If you read the description of the Cobra 29 series above, much of why we like the 148 GTL will sound familiar.
Is 1.5 SWR good?
SWR RANGE EXPLANATIONS. SWR 1.0-1.5: The ideal range! If your SWR is under 1.5, you’re in great shape. If you’re at 1.5 and really, really want to drop down to closer to 1 it’s likely possible to do with addition tuning, different equipment or a different mounting location.
Does SWR affect reception?
Simplified answer: There is no relationship between SWR and receive performance. … SWR is a measure of the impedance mismatch between your antenna and transceiver. Whether transmitting or receiving, a higher SWR correlates with a less efficient coupling of energy between the transceiver and antenna.
How do I test my antenna cable?
The first thing to check on your coax cable is that you have good continuity in the center conductor from one end of the cable to the other. To test this, touch one probe from your multimeter to the center conductor on one end of the cable, and the other probe to the center conductor at the opposite end of the cable.
Is a longer CB antenna better?
Choosing the Optimal CB Antenna Length 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.
How far can a CB radio reach?
about 3 to 20 milesCB radios have a range of about 3 to 20 miles, depending on terrain, for line of sight communication; however, various radio propagation conditions may intermittently allow communication over much greater distances.
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.
How long should my CB coax be?
Select the correct coax length. Many antenna manufacturers somewhat pre-tune the antennas utilizing 18 feet of coax which is why we generally recommend 18 feet of coax even if you don’t think that you need that much.
What is the most powerful CB radio?
What Are the Most Powerful CB Radio Are :Cobra 29 LX 40-Channel Emergency CB Radio.Uniden Pro 520 Best CB Radio For Jeeb.Uniden BEARCAT CB Radio With SSB.Midland 75-822 CB Radio – Best Rated Handheld CB Radio.Galaxy DX-959 Best CB Radio For Off Roading.
Will a CB work without antenna?
CB Radio – Most new CB radios come with a microphone, mounting bracket and power cord, so you won’t need to buy those separately. CB Antenna – Without an antenna, your radio is useless! … Failing to tune your antenna can result in poor system performance and even permanent radio damage.
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.
Are CB radios obsolete?
The CB radio is not completely dead. In fact, a lot of truck drivers still use the CB radio, because that is what they have been using for 5, 10, or even 20+ years. … Several truck drivers now find themselves using trucking apps on their smartphones to communicate, like Next Trucking, for example.