Radiation Safety Discussion with Diagram and Calculations

FCC ID: NX5DSSR-250C

RF Exposure Info

Download: PDF
FCCID_670873

RADIATION SAFETY Safety Design 1 - The Pulsar radar system is located according to a site survey performed by Baron’s engineers. The radar system has to be located where it has a clear line-of sight to the horizon. Therefore the antenna is always installed on a tower high above ground level to look over any nearby obstructions. This antenna location prevents personnel from being in line with the narrow 1.7 degree pencil beam of the antenna, either intentionally or unintentionally. Safety Design 2 - The trap door leading up into the antenna radome is equipped with a safety interlock that de-energizes the antenna movement and transmitter radiation when the door is opened to gain access the antenna. Safety Design 3 - The Pulsar radar system is software controlled which gives it many advantages over conventional systems. For the purpose of Human Safety, the software will de-energize the transmitter when the antenna has not moved within the last 30 seconds. This prevents someone from in advertently standing directly in the main beam long enough to be harmed. See the attached plot of the Pulsar – 5 system.

Tx Average Power (dBm) 57 dBm Antenna Gain 40 dBi RADAR # PULSAR-5 Transmission Loss (dB) 0.5 dB Start Range 1 yards Peak ERP 4.47 Gigawatts Power @ Antenna 56.5 dBm Plot Every 1 Yards Rad Hazard Minimum Distance OET 65, Supplement B (Edition 97-01) Controlled Access - 6 minute average exposure 5mW/cm2 276.7 feet Pulsed Radar Calculations Uncontrolled Access - 30 minute average exposure 1mW/cm2 618.8 feet PULSAR - 5 RF Power Density PtGt 4piR2 10.000 9.000 8.000 7.000 mW/cm2 6.000 5.000 4.000 3.000 2.000 1.000 0.000 -1.000 1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151 161 171 181 YARDS

446683.6 EIRP (mW) 4466835922 1 10000 4pi 12.5564 meters yards ft cm mW/cm 2 1mW/cm 2 5mW/cm 2 0.9146 1 3 91 42546.361 4466835922 4466835922 1.9146 2 6 183 10636.590 12.5564 62.782 2.9146 3 9 274 4727.373 355741766.9 71148353.37 3.9146 4 12 366 2659.148 18861.11786 8434.948333 4.9146 5 15 457 1701.854 7425.636952 3320.8458 5.9146 6 18 549 1181.843 618.8030793 276.73715 6.9146 7 21 640 868.293 7.9146 8 24 732 664.787 EIRP Watts 8.9146 9 27 823 525.264 56.5 Tx dBw 9.9146 10 30 914 425.464 40 Ant. dBi 10.9146 11 33 1006 351.623 96.5 ERP dBw 11.9146 12 36 1097 295.461 4466835922 EIRP Watts 12.9146 13 39 1189 251.754 13.9146 14 42 1280 217.073 14.9146 15 45 1372 189.095 15.9146 16 48 1463 166.197 16.9146 17 51 1554 147.219 17.9146 18 54 1646 131.316 18.9146 19 57 1737 117.857 19.9146 20 60 1829 106.366 20.9146 21 63 1920 96.477 21.9146 22 66 2012 87.906 22.9146 23 69 2103 80.428 23.9146 24 72 2195 73.865 24.9146 25 75 2286 68.074 25.9146 26 78 2377 62.938 26.9146 27 81 2469 58.363 27.9146 28 84 2560 54.268 28.9146 29 87 2652 50.590 29.9146 30 90 2743 47.274 30.9146 31 93 2835 44.273 31.9146 32 96 2926 41.549 32.9146 33 99 3018 39.069 33.9146 34 102 3109 36.805 34.9146 35 105 3200 34.732 35.9146 36 108 3292 32.829 36.9146 37 111 3383 31.078 37.9146 38 114 3475 29.464 38.9146 39 117 3566 27.973 39.9146 40 120 3658 26.591 40.9146 41 123 3749 25.310 41.9146 42 126 3840 24.119 42.9146 43 129 3932 23.010 43.9146 44 132 4023 21.976 44.9146 45 135 4115 21.011 45.9146 46 138 4206 20.107 46.9146 47 141 4298 19.260 47.9146 48 144 4389 18.466 48.9146 49 147 4481 17.720

49.9146 50 150 4572 17.019 50.9146 51 153 4663 16.358 51.9146 52 156 4755 15.735 52.9146 53 159 4846 15.146 53.9146 54 162 4938 14.591 54.9146 55 165 5029 14.065 55.9146 56 168 5121 13.567 56.9146 57 171 5212 13.095 57.9146 58 174 5304 12.648 58.9146 59 177 5395 12.222 59.9146 60 180 5486 11.818 60.9146 61 183 5578 11.434 61.9146 62 186 5669 11.068 62.9146 63 189 5761 10.720 63.9146 64 192 5852 10.387 64.9146 65 195 5944 10.070 65.9146 66 198 6035 9.767 66.9146 67 201 6126 9.478 67.9146 68 204 6218 9.201 68.9146 69 207 6309 8.936 69.9146 70 210 6401 8.683 70.9146 71 213 6492 8.440 71.9146 72 216 6584 8.207 72.9146 73 219 6675 7.984 73.9146 74 222 6767 7.770 74.9146 75 225 6858 7.564 75.9146 76 228 6949 7.366 76.9146 77 231 7041 7.176 77.9146 78 234 7132 6.993 78.9146 79 237 7224 6.817 79.9146 80 240 7315 6.648 80.9146 81 243 7407 6.485 81.9146 82 246 7498 6.328 82.9146 83 249 7590 6.176 83.9146 84 252 7681 6.030 84.9146 85 255 7772 5.889 85.9146 86 258 7864 5.753 86.9146 87 261 7955 5.621 87.9146 88 264 8047 5.494 88.9146 89 267 8138 5.371 89.9146 90 270 8230 5.253 90.9146 91 273 8321 5.138 91.9146 92 276 8412 5.027 92.9146 93 279 8504 4.919 93.9146 94 282 8595 4.815 94.9146 95 285 8687 4.714 95.9146 96 288 8778 4.617 96.9146 97 291 8870 4.522 97.9146 98 294 8961 4.430 98.9146 99 297 9053 4.341 99.9146 100 300 9144 4.255 100.9146 101 303 9235 4.171

101.9146 102 306 9327 4.089 102.9146 103 309 9418 4.010 103.9146 104 312 9510 3.934 104.9146 105 315 9601 3.859 105.9146 106 318 9693 3.787 106.9146 107 321 9784 3.716 107.9146 108 324 9876 3.648 108.9146 109 327 9967 3.581 109.9146 110 330 10058 3.516 110.9146 111 333 10150 3.453 111.9146 112 336 10241 3.392 112.9146 113 339 10333 3.332 113.9146 114 342 10424 3.274 114.9146 115 345 10516 3.217 115.9146 116 348 10607 3.162 116.9146 117 351 10698 3.108 117.9146 118 354 10790 3.056 118.9146 119 357 10881 3.004 119.9146 120 360 10973 2.955 120.9146 121 363 11064 2.906 121.9146 122 366 11156 2.859 122.9146 123 369 11247 2.812 123.9146 124 372 11339 2.767 124.9146 125 375 11430 2.723 125.9146 126 378 11521 2.680 126.9146 127 381 11613 2.638 127.9146 128 384 11704 2.597 128.9146 129 387 11796 2.557 129.9146 130 390 11887 2.518 130.9146 131 393 11979 2.479 131.9146 132 396 12070 2.442 132.9146 133 399 12162 2.405 133.9146 134 402 12253 2.369 134.9146 135 405 12344 2.335 135.9146 136 408 12436 2.300 136.9146 137 411 12527 2.267 137.9146 138 414 12619 2.234 138.9146 139 417 12710 2.202 139.9146 140 420 12802 2.171 140.9146 141 423 12893 2.140 141.9146 142 426 12984 2.110 142.9146 143 429 13076 2.081 143.9146 144 432 13167 2.052 144.9146 145 435 13259 2.024 145.9146 146 438 13350 1.996 146.9146 147 441 13442 1.969 147.9146 148 444 13533 1.942 148.9146 149 447 13625 1.916 149.9146 150 450 13716 1.891 150.9146 151 453 13807 1.866 151.9146 152 456 13899 1.842 152.9146 153 459 13990 1.818

153.9146 154 462 14082 1.794 154.9146 155 465 14173 1.771 155.9146 156 468 14265 1.748 156.9146 157 471 14356 1.726 157.9146 158 474 14448 1.704 158.9146 159 477 14539 1.683 159.9146 160 480 14630 1.662 160.9146 161 483 14722 1.641 161.9146 162 486 14813 1.621 162.9146 163 489 14905 1.601 163.9146 164 492 14996 1.582 164.9146 165 495 15088 1.563 165.9146 166 498 15179 1.544 166.9146 167 501 15270 1.526 167.9146 168 504 15362 1.507 168.9146 169 507 15453 1.490 169.9146 170 510 15545 1.472 170.9146 171 513 15636 1.455 171.9146 172 516 15728 1.438 172.9146 173 519 15819 1.422 173.9146 174 522 15911 1.405 174.9146 175 525 16002 1.389 175.9146 176 528 16093 1.374 176.9146 177 531 16185 1.358 177.9146 178 534 16276 1.343 178.9146 179 537 16368 1.328 179.9146 180 540 16459 1.313 180.9146 181 543 16551 1.299 181.9146 182 546 16642 1.284 182.9146 183 549 16734 1.270 183.9146 184 552 16825 1.257 184.9146 185 555 16916 1.243 185.9146 186 558 17008 1.230 186.9146 187 561 17099 1.217 187.9146 188 564 17191 1.204 188.9146 189 567 17282 1.191 189.9146 190 570 17374 1.179 190.9146 191 573 17465 1.166 191.9146 192 576 17556 1.154 192.9146 193 579 17648 1.142 193.9146 194 582 17739 1.130 194.9146 195 585 17831 1.119 195.9146 196 588 17922 1.108 196.9146 197 591 18014 1.096 197.9146 198 594 18105 1.085 198.9146 199 597 18197 1.074 199.9146 200 600 18288 1.064 200.9146 201 603 18379 1.053 201.9146 202 606 18471 1.043 202.9146 203 609 18562 1.032 203.9146 204 612 18654 1.022 204.9146 205 615 18745 1.012

205.9146 206 618 18837 1.003 206.9146 207 621 18928 0.993 207.9146 208 624 19020 0.983 208.9146 209 627 19111 0.974 209.9146 210 630 19202 0.965 210.9146 211 633 19294 0.956 211.9146 212 636 19385 0.947 212.9146 213 639 19477 0.938 213.9146 214 642 19568 0.929 214.9146 215 645 19660 0.920 215.9146 216 648 19751 0.912 216.9146 217 651 19842 0.904


Document Created: 2006-06-14 09:51:47
Document Modified: 2006-06-14 09:51:47
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC