Since many headaches are caused by stress, the best essential oils for headaches are often those that encourage deep relaxation. Rose oil can help comfort and soothe the nervous system, and reduce tension in the body that can lead to tension headaches.
Tuning your antenna is mandatory if you want acceptable CB performance. Not tuning your antenna will result in poor transmission and reception performance, and can also result in permanent damage to your radio. Youâll need an SWR meter (available for around $25) in order to tune your antenna.
Return loss is the difference in power (expressed in dB) between the incident power and the power reflected back by the load due to a mismatch. It can be measured directly in dB with a Spectrum Analyzer or Network Analyzer along with a few key components.SWR is defined as the ratio of the maximum voltage to the minimum voltage in the standing wave. The larger the impedance mismatch, the larger the amplitude of the standing wave. A perfect impedance match would cause no voltage standing wave, so the ratio of the maximum voltage to the minimum would be 1 (1:1).