Search results with tag "Signal strength"
Radio Waves and Communications Distance
www.arrl.orgmeter does not yield accurate signal- intensity readings, and is not calibrated in microvolts. An S meter is useful only for making relative measurements of signal strength, such as comparing the signal strength of two or more amateur stations, or the relative difference between two or more antennas at a given station with which
The Basics of Signal Attenuation - CAS Dataloggers
www.dataloggerinc.comNov 16, 2016 · Attenuation is a reduction of signal strength during transmission, such as when sending data collected through automated monitoring. Attenuation is represented in decibels (dB), which is ten times the logarithm of the signal power at a particular input divided by the signal power at an output of a specified medium.
Radial Systems for Elevated and Ground-Mounted Antennas
consumer.steppir.comLOSS adds to the 36 ohms to get you at or near 50 ohms, but with a big drop in signal strength. To raise this low impedance closer to the desired 50 ohms you can angle the radials downward, this raises the impedance of the antenna as you increase the angle downward. Graph 4 shows the approximate rela-tionship of radial angle to impedance.