[Lowfer] EAR vs MLS in EN90xn
Michael Sapp
wa3tts at verizon.net
Sat Jan 17 12:37:16 EST 2015
J.B. & All: Nice copy on EAR this morning as well
https://www.dropbox.com/s/xc0rwz2eguso1et/capt00003.jpg?dl=0
I left the vis gain and sensitivity at 19 and switched to 188.83 as well as switching from my SW to NE transformer to have the EWE antenna favor EAR.
EN93dr>EN90xn ~ 234.7 miles at 20Log(d) is 47.4dB is distance component for FSPL for EAR
vs
EN90gt>EN90xn ~ 76.4 miles for MLS. 20Log(d) is 37.66 dB for the distancce component for FSPL for MLS.
47.4 - 37.66 = 9.74 dB difference, which is fairly close the the copied signal levels of -48.1 for EAR and -36.8 for MLS ~ 11.3 dB (11.3- 9.74 = 1.53 dB difference)
Both stations are somewhat off axis on the forward lobe of my EWE antenna but in different directions. An e-probe test with it's omni pattern would offer a better comparison...
73, Mike wa3tts
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