FCC Method of Moments - SBE Chapter 24

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Example CURRENT rms Frequency = 1180 KHz Input power = .0113867 watts Efficiency = 100. % coordinates in degrees current mag phase real imaginary no. X Y Z (amps) (deg) (amps) (amps) GND 0 0 0 .0170758 340.6 .0161033 -5.68E-03 2 0 0 8.88 .0170977 338.6 .0159227 -6.23E-03 3 0 0 17.76 .0166592 337.4 .0153845 -6.39E-03 4 0 0 26.64 .0158121 336.5 .014499 -6.31E-03 5 0 0 35.52 .0145774 335.7 .0132834 -6.E-03 6 0 0 44.4 .012979 335. .0117601 -5.49E-03 7 0 0 53.28 .011045 334.3 9.96E-03 -4.78E-03 8 0 0 62.16 8.8E-03 333.8 7.9E-03 -3.89E-03 9 0 0 71.04 6.28E-03 333.2 5.61E-03 -2.83E-03 10 0 0 79.92 3.46E-03 332.7 3.08E-03 -1.59E-03 END 0 0 88.8 0 0 0 0
Verifying the Model Adjust Tower Impedance Matrix – “Massage” model to agree with values measured at the ATU output Adjust model height (velocity <strong>of</strong> propagation) Add lumped feed inductance (series) Compensate for base insulator capacitance – Repeat for each tower in array – An iterative process
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: Example Lumped loads resistance rea
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 and 44: Example MEDIUM WAVE ARRAY SYNTHESIS
Page 45 and 46: Example C : \ D o c u m e n t s a n
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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