[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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