Contents
Why does my SWR fluctuate?
Changing SWR in a mobile environment is not anything new, and is always happening weather you realize it or not. The antenna is reacting to the changing environment, which is constantly changing when your vehicle is moving anyway.
Is 1.7 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. SWR 1.5 – 1.9: There’s room for improvement, but SWR in this range should still provide adequate performance.
Can your SWR be too low?
An SWR too low over the whole band (1:1 for all 40 channels) can indicate a low efficiency antenna or lossy component. Safe operation of your CB should be with an SWR of 2:1 or less. Most people would prefer to be 1.5:1 or less. We EXPECT a high quality “short” antenna to be narrow banded.
What should my SWR be for a right channel Radio?
All the troubleshooting steps beyond this one are only applicable if your SWR is 3.0 or higher on all channels. If that’s you, please continue on to the next step! If your SWR is 2.9 or lower, please see this article on interpreting SWR between 1.0-2.9 for more guidance on what it means and how to address any problems.
Is it possible to get a high SWR reading?
When attached incorrectly, readings will be reported as being extremely high even if everything is installed perfectly. Please see this article on ensuring your SWR meter is properly installed. #3 – Have You Reached the Limit of Your Antenna’s Adjustability?
What should my SWR be for my car?
If your SWR is 2.9 or lower, please see this article on interpreting SWR between 1.0-2.9 for more guidance on what it means and how to address any problems. To function properly, your antenna mount needs to be grounded to your vehicle’s metallic chassis. Otherwise, you’ll get sky-high SWR!
Can a faulty SWR meter cause a problem?
While uncommon, a faulty SWR meter will wreck havoc with your troubleshooting efforts. Use this guide to determine if your SWR meter is faulty. 99%+ of SWR issues are caused by the coax, antenna, mount or improper installation of those components.