E-1 Appendix E Measured Spectrum at the FedEx Field Washington, DC The following figures show the spectrum from TV channels 21 to 51, as observed at Fedex Field on a spectrum analyzer with a ground plane vertical antenna having a gain of approximately 0 dBi. The ESPN microphones are shown in red. The other frequency labels indicate NFL microphones, spectral components of NTSC or DTV television stations, or signals of unknown origin. Figures E-1 to E-14 show the spectrum on the home team sideline of the playing field, Figures E-15 to E-28 show the spectrum at the “Tailgate” area, Figures E-29 to E-42 show the spectrum on the upper deck, and Figures E-43 to E-56 show the spectrum in the press box. The ESPN microphones were turned on and off at each location. Although the NFL was not expected to begin setting up and testing their microphones until 5:00 PM, when making spectrum measurements on the upper deck starting at about 3:00 PM, many new signals other than ESPN microphones appeared as shown in Figures E-29 to E-42. It was assumed that these were the NFL microphones for which the frequencies were unknown. Therefore, only the ESPN microphones were identified by frequency labels in Figure E-43 to E-56, which show the spectrum with the ESPN microphones turned on. Figures E-57 to E-63 show the spectrum in the press box at about 6:20 PM, less than one hour before the start of the game, and after the ESPN microphones had been turned off permanently. Except for amplitude, the spectrum is virtually the same as the spectrum observed earlier in the day with the ESPN microphones turned off, as shown in Figures E-43 to E-56. Figures E-64 to E-70 show the spectrum during the first quarter of the game. When analyzing the data, be aware that the indicated frequency on the spectrum analyzer is only an approximate value, and that there was a time delay of as much as one and one half hours between measurements taken with the microphones off and on at a given location. The ESPN wireless microphones were operated on the following frequencies: 513.05, 525.3, 548.350, 576.2, 584.8, 594.5, 646.85, 653.15, 659.65, 670.15, and 682.3 MHz. E-2 E.1 RF Spectrum Plots measured on the Field Spectrum on Field ESPN Microphones Off 522.875 519.275 523.775 525.275 528.8 529.775 531.275 534.875 535.775 537.275 540.8 541.775 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-1 Spectrum on Field ESPN Microphones On 529.7 528.8 513.05 519.275 522.8 523.775 525.275 531.275 534.8 535.775 537.275 540.8 541.775 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-2 E-3 Spectrum on Field ESPN Microphones Off 566.3 560.3 556.85 548.3 547.775 546.8 543.275 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-3 Spectrum on Field ESPN Microphones On 566.3560.3 554.3 548.3 546.8 543.275 547.7 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-4 E-4 Spectrum on Field ESPN Microphones Off 573.725 600.275 599.525598.175 596.225 584.375 590.3 583.775 582.8 579.275 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-5 Spectrum on Field ESPN Microphones On 600.275 599.525 598.175 596.225 590.3576.2 579.275 582.8 583.775 584.825 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-6 E-5 Spectrum on Field ESPN Microphones Off 626.3 602.3 614.3 620.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-7 Spectrum on Field ESPN Microphones On 626.3 620.3614.3 602.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-8 E-6 Spectrum on Field ESPN Microphones Off -80 -75 -70 -65 -60 -55 -50 -45 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 No Data Figure E-9 Spectrum on Field ESPN Microphones On 661.7 660.8 659.675657.275653.525 646.85 644.3 638.3 632.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-10 E-7 Spectrum on Field ESPN Microphones Off 689.225 690.8 691.775 687.275 685.775 684.8 681.275674.3 670.025 669.275662.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-11 Spectrum on Field ESPN Microphones On 691.775 687.275 685.775 682.325 681.275 674.3 673.775 670.175 670.025 662.3 669.275 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-12 E-8 Spectrum on Field ESPN Microphones Off 692.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722 Freq MHz dBm Ch 51 Figure E-13 Spectrum on Field ESPN Microphones On 692.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-14 E-9 E.2 RF Spectrum Plots measured in the Tailgate Area Tailgate Area ESPN Microphones Off 541.775 540.8 537.275535.775 534.875 531.275 519.275 522.8 523.775 525.2 528.8 529.7 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-15 Tailgate Area ESPN Microphones On 541.775 540.8 537.275535.775 534.875 531.275 529.775 528.8 525.2 523.775 522.875 519.275 513.05 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-16 E-10 Tailgate Area ESPN Microphones Off 566.3560.3 554.3 548.3 547.775 546.8 543.2 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-17 Tailgate Area ESPN Microphones On 570.125 569 566.3560.3 554.3 548.3 547.7 546.8 543.275 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-18 E-11 Tailgate Area ESPN Microphones Off 596.3 590.3 584.3 583.775 582.875 579.275 575 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-19 Tailgate Area ESPN Microphones On 596.3 590.3 584.975 584.375 583.775 582.875 579.275 576.2 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-20 E-12 Tailgate Area ESPN Microphones Off 626.3620.3614.3 602.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-21 Tailgate Area ESPN Microphones On 626.3 620.3 614.3602.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-22 E-13 Tailgate Area ESPN Microphones Off 661.7 660.8 657.275 644.3 638.3 632.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-23 Tailgate Area ESPN Microphones On 661.7 660.875 659.675 657.275 653.525 644.3638.3632.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-24 E-14 Tailgate Area ESPN Microphones Off 691.775 690.8 687.275 685.775 684.8 681.275 674.3 673.775 670.175 669.275 668.6 662.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-25 Tailgate Area ESPN Microphones On 681.275 674.3 673.775 672.875670.025 669.275 662.3 682.325 684.875 685.775 687.275 688.475 690.8 691.775 689.15 689.825 670.175 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-26 E-15 Tailgate Area ESPN Microphones Off 692.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-27 Tailgate Area ESPN Microphones On 692.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-28 E-16 E.3 RF Spectrum Plots measured in the Upper Deck Area Upper Deck ESPN Microphones Off 541.775 540.8 538.625 537.275 535.775 534.875 533.825 531.275 529.775 528.8 525.2 523.775 522.8 522.275 519.275 518.225 514.1 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-29 Upper Deck ESPN Microphones On 541.475 540.2 539.3 537.275 536.15 535.775 534.8 531.275 529.775 529.4 528.5 527.975525.275 524.225 523.775 522.875 522.275 519.275 518.225 516.8 515.9514.85 514.25 513.65513.05512.525 517.775 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-30 E-17 Upper Deck ESPN Microphones Off 570.125569 566.3 560.3 554.3 548.3 547.7 546.8 544.85 543.275 -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-31 Upper Deck ESPN Microphones On 569 566.3 560.3 558.425 554.3 553.775548.3 547.7 546.8 543.275 -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-32 E-18 Upper Deck ESPN Microphones Off 600.275 599.525596.3 590.3 584.3 583.775 582.8581.825 579.275 577.4574.775 572.15 -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-33 Upper Deck ESPN Microphones On -80 -75 -70 -65 -60 -55 -50 -45 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 No Data Figure E-34 E-19 Upper Deck ESPN Microphones Off 626.3 620.3 614.3 602.3 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-35 Upper Deck ESPN Microphones On 626.3 620.3 614.3 609.5 602.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-36 E-20 Upper Deck ESPN Microphones Off 661.7 660.8 657.275 652.325 644.3 638.3 632.3 -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-37 Upper Deck ESPN Microphones On 661.7661.25 660.275 659.675658.775657.275656.975655.85 655.325 653.825 653.525 653.15652.325 651.5 646.85 644.3 638.3635.75 633.725 632.3 -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-38 E-21 Upper Deck ESPN Microphones Off 691.775 690.8 687.275 685.775 684.8 681.275 674.3 673.775 670.025 669.275 668.6 662.3 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-39 Upper Deck ESPN Microphones On 662.3 665.675 668.3 668.6 669.275 670.175 671.825 672.35 673.1 673.475 674.3 680.3 681.275 682.325 683.975 684.8 685.4 687.275 690.8 691.775 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-40 E-22 Upper Deck ESPN Microphones Off 692.3 -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-41 Upper Deck ESPN Microphones On -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-42 E-23 E.4 RF Spectrum Plots measured in the Press Box Press Box ESPN Microphones Off 541.475 540.2 539.3 538.4 537.275 535.775 536.15 534.35 531.275 529.4 528.575 527.975 525.2 524.225 523.775 522.8 522.275 519.275 517.775516.8 512.525 513.575 514.325 514.85 515.975 518.225 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-43 Press Box ESPN Microphones On 525.275 513.05 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-44 E-24 Press Box ESPN Microphones Off 556.325556.55 570.125 569.3 569 566.3 560.3 553.775 548.3 547.7 546.8 543.2 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-45 Press Box ESPN Microphones On -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-46 E-25 Press Box ESPN Microphones Off 575.75 574.55 572.3 577.1 579.275 582.8 583.775 590.3 596.225 598.175 599.525 600.275 584.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-47 Press Box ESPN Microphones On 594.5 584.825 576.2 -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-48 E-26 Press Box ESPN Microphones Off 631.625 626.3620.3614.3 602.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-49 Press Box ESPN Microphones On -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-50 E-27 Press Box ESPN Microphones Off 644.3638.3 635.825 633.65 632.3 661.7 661.25 660.35659.75 658.7 657.275656.975655.925 655.325 653.825653.15652.325 651.5 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-51 Press Box ESPN Microphones On 659.675653.15646.85 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-52 E-28 Press Box ESPN Microphones Off 674.3 673.475 673.1 672.35 671.825 691.775 690.8 687.275685.4 684.8 684.05 681.275 680.3 669.275 668.6 668.3 667.7 665.675 662.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-53 Press Box ESPN Microphones On 682.325 670.175 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-54 E-29 Press Box ESPN Microphones Off 692.45 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-55 Press Box ESPN Microphones On -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-56 E-30 E.5 RF Spectrum Plots measured in the Press Box during the Pre-game Press Box Pre-game 6:20 PM -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-57 Press Box Pre-game 6:20 PM -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-58 E-31 Press Box Pre-game 6:20 PM -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-59 Press Box Pre-game 6:20 PM -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-60 E-32 Press Box Pre-game 6:20 PM -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-61 Press Box Pre-game 6:20 PM -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-62 E-33 Press Box Pre-game 6:20 PM -120 -110 -100 -90 -80 -70 -60 -50 -40 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-63 E-34 E.6 RF Spectrum Plots measured in the Press Box during the First Quarter Press Box 1st Quarter 512.525 513.575 514.325 514.85 515.9 516.8 517.775 518.225 519.275 522.275 522.8 523.775 524.225 525.2 527.975 528.5 529.4 531.275 535.775 534.875 536.15 537.275 539.225 540.125 541.475 529.7 -120 -110 -100 -90 -80 -70 -60 -50 -40 512 518 524 530 536 542Freq MHz dBm Ch 21 Ch 22 Ch 23 Ch 24 Ch 25 Figure E-64 Press Box 1st Quarter 570.125 569 566.3 560.3 559.925 553.775 548.3 547.775 546.8 543.275 -120 -110 -100 -90 -80 -70 -60 -50 -40 542 548 554 560 566 572Freq MHz dBm Ch 26 Ch 27 Ch 28 Ch 29 Ch 30 Figure E-65 E-35 Press Box 1st Quarter 600.275 599.525 598.175 596.225 590.3 582.875 583.775581.525 579.275 577.1575.75 572.675 572.3 -120 -110 -100 -90 -80 -70 -60 -50 -40 572 578 584 590 596 602Freq MHz dBm Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 Figure E-66 Press Box 1st Quarter 631.625 626.3620.3614.3 602.3 -120 -110 -100 -90 -80 -70 -60 -50 -40 602 608 614 620 626 632Freq MHz dBm Ch 36 Ch 37 Ch 38 Ch 39 Ch 40 Figure E-67 E-36 Press Box 1st Quarter 661.7 661.175660.35 659.75 658.775 657.275 656.975 655.925655.325 653.825653.15 652.325 651.5 644.3 642.875 632.225 632.675 633.65 634.475 635.75 638.3 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 632 638 644 650 656 662Freq MHz dBm Ch 41 Ch 42 Ch 43 Ch 44 Ch 45 Figure E-68 Press Box 1st Quarter 687.95 691.325 691.775688.775687.275685.4 684.875 684.575 683.975 681.275 680.3 674.3 673.475 673.025 672.35 671.825 668.6668.3 667.7 665.675 662.3 -120 -110 -100 -90 -80 -70 -60 -50 -40 662 668 674 680 686 692Freq MHz dBm Ch 46 Ch 47 Ch 48 Ch 49 Ch 50 Figure E-69 E-37 Press Box 1st Quarter 692.525 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 692 698 704 710 716 722Freq MHz dBm Ch 51 Figure E-70