mam taky pocit ze nieco robim zle v nastaveniach.. ako som pisal jedine kanaly 5600 a 5700 su pouzitelne.. radia su v stopercentom stave tak neviem
0 (zero) is bore sight axis.
elevation beam width at -6dB is 30 degrees and that is correct - added green lines and approximate -6dB mark on dB axis for easier understanding. It is the angle between the two green straight lines going out of center of the graph (= 30°)
elevation beam width at -15dB is 60 degrees and that is also correct - It is the angle between the two blue lines. if you look at it from zero / bore sight, it is +30° to -30° in elevation (so the beam width is 60 degrees
According to the spec sheet for the 30 degree horn, the elevation beamwidth is -6db at 30 degrees.
But, the drawing/graph shows -15db at 30 degrees.
So, which is it? These two seem to contradict each other.
John Rayfield, Jr.