FCC Method of Moments - SBE Chapter 24

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Example Day Pattern - 50 KW. Tower Theo. Theo. Model Model Model Model Ant. Mon. Ant. Mon. Field Phase R X Current Phase Ratio Phase (Ref) 1 1 0 50.323 35.981 27.9982 5.2 1.000 0.0 7 0.894 109.2 15.269 4.6807 26.2882 111.1 0.939 105.9 Night Pattern - 5 KW. Tower Theo. Theo. Model Model Model Model Ant. Mon. Ant. Mon. Field Phase R X Current Phase Ratio Phase 1 0.438 -6.9 59.4<strong>24</strong> -31.339 3.69731 0.1 0.471 -5.4 (Ref) 2 1 0 51.818 10.779 7.85258 5.5 1.000 0.0 3 0.523 16.7 44.009 1.4782 4.18673 21.5 0.533 16.0 4 0.418 64.9 0.8838 -11.147 3.44338 65.1 0.439 59.6 5 0.99 99.5 4.0698 -5.6732 8.03095 100 1.023 94.5 6 0.549 122 -2.6455 -1.3779 4.43277 121.8 0.564 116.3 Operating Parameters Calculated!
Example C : \ D o c u m e n t s a n d S e t t i n g s \ Ow n e r\ D e s k t o p \ T e m p M B P ro \ K Y E S D a y A rra y 1 0 -0 6 -2 0 0 9 , 2 2 : 2 1 : 3 4 Ge o g ra p h i c c o o rd i n a t e s : E -t h e t a m a g n i t u d e rm s , m v / m , e l e v a t i o n = 0 d e g re e s m i n i m u m = 0 , m a x i m u m = 3 , 4 2 0 . , d y n a m i c ra n g e = 3 , 4 1 9 . 1 , s c a l e = 1 M a x i m u m g a i n : 3 , 4 1 9 . 1 rm s , m v / m a t 3 5 7 . d e g ; -3 d B b e a m w i d t h : t o 2 7 7 . 9 d e g re e s 1 , 1 8 0 . K H z 0 330 30 300 60 270 500 1000 1500 2000 2500 3000 90 <strong>24</strong>0 120 210 150 180 CP pattern versus NEC generated pattern
Page 1 and 2: FCC Method of Moments Licensing AM
Page 3 and 4: Classic AM “Proof” Construction
Page 5 and 6: Classic “AM “ Proof Pattern Sha
Page 7 and 8: Could This Cumbersome Process be Im
Page 9 and 10: “Method of Moments” Applicable
Page 11 and 12: “Method of Moments” In Plain En
Page 13 and 14: “Method of Moments” NEC Modeled
Page 15 and 16: “Method of Moments” NEC Modeled
Page 17 and 18: )cos cos (1 cos ) sin cos( ) ( G G
Page 19 and 20: NDA Base Impedance Determined by: -
Page 21 and 22: Back to “The Task” FCC Method o
Page 23 and 24: Example GEOMETRY Wire coordinates i
Page 25 and 26: Example IMPEDANCE normalization = 5
Page 27 and 28: Verifying the Model With Series Ind
Page 29 and 30: Example GEOMETRY Wire coordinates i
Page 31 and 32: Example Lumped loads resistance rea
Page 33 and 34: Verifying the Model Adjust Tower Im
Page 35 and 36: FCC Requirements - Tapered towers m
Page 37 and 38: Example Two turn lightning loops pl
Page 39 and 40: Modeling Pattern Shape Defined by F
Page 41 and 42: Modeling Credit to Jerry Westburg:
Page 43: Example MEDIUM WAVE ARRAY SYNTHESIS
Page 47 and 48: DA FCC “302” Location - from Su
Page 49 and 50: FCC Requirements Determining “Pro
Page 51 and 52: Sampling System The Sampling System
Page 53 and 54: Sample Lines Verifying Length and I
Page 55 and 56: Example Sample line measurements wi
Page 57 and 58: Toroid Verification Toroids R F Sou
Page 59 and 60: FCC Requirements - Sample line leng
Page 61 and 62: Maintenance At Least Once Every 24

FCC Method of Moments - SBE Chapter 24

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