What is a good SWR for a CB radio?
The radio will receive and transmit well with a good “SWR” reading of 2.5 or less across all channels. The lower the “SWR” reading the better your radio will perform.
What causes high SWR on CB?
One of the most common causes of high SWR readings is incorrectly connecting your SWR meter to your radio and antenna. When attached incorrectly, readings will be reported as being extremely high even if everything is installed perfectly.
How do I increase the range on my CB radio?
The best way to extend the range of your CB, or any radio, is raise the antenna higher. Of course you will need a good quality antenna and Coax. For mobile operations the Wilson 5000 is probably the best.
Does coax length affect SWR?
Many antennas have a SWR of just over a perfect match like a SWR of 1 to 1.2. This is measured at the antenna itself. With a length of coax the SWR will now show a SWR of say 1 to 1.0 , because of the loss in the coax. And so will the bandwidth change a little.
What SWR is too high?
For instance a SWR too high (over 3:1) all over the band can be an indication of a bad part or junction, poor ground or poor location. An SWR too low over the whole band (1:1 for all 40 channels) can indicate a low efficiency antenna or lossy component.
What does Delta Tune mean on a CB?
receive incremental tuner
What is acceptable SWR?
What is a good SWR reading ? The best reading possible is 1.01:1 (46dB return loss), but usually a reading below 1.5:1 is acceptable. Outside the perfect world a 1.2:1 (20.8dB return loss) is spot on in most cases. To ensure an accurate reading, it is best to connect the meter at the base of the antenna.
Can high SWR damage a radio?
High SWR can reflect enough power back into the radio to create enough heat to cook the final RF transistor. It isn’t usually an immediate failure, it takes some time for that heat to build up and do damage.
How do you adjust a CB antenna?
CB Antenna Tuning Instructions
- The 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).
What does S RF mean on CB?
transmitted radio signal power