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File:Hertz drawing of his spark transmitter 1888.png

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252: 67: 157:. When Hertz pushed a switch in the primary circuit of the coil it would break the current in the primary, inducing a pulse of high voltage in the secondary which would charge the two sides of the antenna with electric charge. The charge would be discharged through a spark across the spark gap, causing brief oscillating 479: 449: 38: 161:
of current in the antenna. This energy would be radiated by the antenna as a brief pulse of radio waves. Hertz detected the radio waves by tiny sparks across micrometer spark gaps between the ends of loops of wire
137:, from an 1888 paper. Hertz did not include many drawings of his equipment in his papers, and this drawing is cropped from a more elaborate drawing. The oscillator consists of a 78: 46: 211: 197:, Wiedemann's Annalen, Berlin, Vol. 34, February 2, 1888, p. 551. Alterations to image: Cloned out all additional apparatus besides transmitter 265: 478: 473: 301:
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on the ends with a spark gap between them. The two sides of the antenna are connected to an
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that acted as resonant receiving antennas tuned to the frequency of the transmitter.
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comprised of two collinear metal rods with capacitive metal plates
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in its country of origin and other countries and areas where the
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Cropped out receiving loop antennas leaving only the transmitter
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On the finite propagation velocity of electromagnetic actions
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on Google Books. Originally published in Hertz, H.,
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Commons is a freely licensed media file repository.
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Diagram of Heinrich Hertz's first radio transmitter
347:Heinrich Hertz'in ilk radyo vericisinin diyagramı. 309:https://creativecommons.org/publicdomain/mark/1.0/ 185:Original image: Retrieved 28 February 2018 from 51:(346 × 499 pixels, file size: 21 KB, MIME type: 111:Hertz drawing of his spark transmitter 1888.png 47:Hertz_drawing_of_his_spark_transmitter_1888.png 66: 8: 526: 418: 343: 335: 226: 544: 536: 528: 508: 394: 378: 361: 358: 331: 324: 315:Creative Commons Public Domain Mark 1.0 251: 7: 496:User created page with UploadWizard 407: 519: 352: 346: 338: 115: 98: 44: 351: 329: 250: 65: 21: 326: 116: 41:No higher resolution available. 14: 325: 207:Original image: Heinrich Hertz 26: 1: 31: 359:Items portrayed in this file 270:life plus 70 years or fewer 133:, with which he discovered 566: 294:) before January 1, 1929. 546:File change date and time 408: 299: 16: 328: 290:(or registered with the 72:This is a file from the 495: 465: 201: 181: 174: 171: 108: 76:. Information from its 187:Heinrich Hertz (1893) 79:description page there 530:Horizontal resolution 511:Spark-gap transmitter 292:U.S. Copyright Office 153:powered by a battery 276:This work is in the 258:This work is in the 549:23:53, 3 March 2018 538:Vertical resolution 474:00:20, 1 March 2018 444:23:57, 3 March 2018 553: 552: 499: 345: 337: 306: 305: 245: 244: 219: 218: 149:(Rhumkorff coil) 131:radio transmitter 94: 93: 74:Wikimedia Commons 557: 527: 486: 456: 322: 319: 316: 313: 310: 268:is the author's 254: 253: 247: 241: 238: 235: 232: 227: 177: 127:spark oscillator 120: 112: 106: 90: 69: 68: 62: 56: 54: 565: 564: 560: 559: 558: 556: 555: 554: 515: 507: 500: 492: 484: 462: 454: 410: 409: 406: 405: 404: 403: 402: 401: 400: 399: 397: 387: 386: 385: 383: 372: 371: 370: 369: 368: 366: 350: 349: 348: 341: 340: 320: 317: 314: 311: 308: 286:because it was 239: 236: 233: 230: 225: 220: 210:Derived image: 167: 110: 103: 96: 95: 84: 83: 82:is shown below. 58: 52: 50: 43: 42: 12: 11: 5: 563: 561: 551: 550: 547: 543: 542: 539: 535: 534: 531: 518: 514: 513: 505: 504: 503: 498: 497: 494: 490: 487: 481: 476: 471: 468: 467: 464: 460: 457: 451: 446: 441: 437: 436: 433: 430: 427: 424: 421: 414: 413: 398: 395: 393: 392: 391: 390: 389: 388: 384: 379: 377: 376: 375: 374: 373: 367: 362: 360: 357: 356: 355: 354: 353: 342: 334: 333: 330: 327: 304: 303: 297: 296: 266:copyright term 255: 243: 242: 224: 221: 217: 216: 215: 214: 208: 203: 199: 198: 189:Electric Waves 183: 179: 178: 173: 169: 168: 159:standing waves 147:induction coil 139:dipole antenna 123:Heinrich Hertz 113: 104: 102: 99: 97: 92: 91: 70: 60: 59: 40: 36: 35: 34: 29: 24: 19: 13: 10: 9: 6: 4: 3: 2: 562: 548: 545: 540: 537: 532: 529: 525: 522: 516: 512: 509: 501: 493: 488: 482: 480: 477: 475: 472: 470: 469: 463: 458: 452: 450: 447: 445: 442: 439: 438: 434: 431: 428: 425: 422: 420: 419: 417: 411: 382: 365: 323: 302: 298: 295: 293: 289: 285: 284:United States 281: 280: 279:public domain 274: 273: 271: 267: 263: 262: 261:public domain 256: 249: 248: 234:Public domain 231:Public domain 229: 228: 222: 213: 209: 206: 205: 204: 200: 196: 192: 190: 184: 180: 170: 165: 160: 156: 152: 148: 144: 140: 136: 132: 128: 124: 119: 114: 107: 100: 88: 81: 80: 75: 71: 64: 63: 57: 48: 39: 33: 30: 28: 25: 23: 20: 18: 15: 523: 520: 415: 412:File history 307: 277: 275: 269: 259: 257: 194: 188: 163: 154: 150: 142: 129:, the first 117: 87:You can help 77: 45: 22:File history 164:(not shown) 155:(not shown) 135:radio waves 121:Diagram by 109:Description 502:File usage 483:774 × 499 453:346 × 499 429:Dimensions 27:File usage 541:28.35 dpc 533:28.35 dpc 491:Chetvorno 461:Chetvorno 426:Thumbnail 423:Date/Time 381:inception 288:published 223:Licensing 212:Chetvorno 118:English: 53:image/png 517:Metadata 332:Captions 32:Metadata 485:(35 KB) 455:(21 KB) 440:current 435:Comment 364:depicts 344:Turkish 336:English 282:in the 143:(A, A') 125:of his 101:Summary 49:‎ 202:Author 182:Source 321:false 318:false 240:false 237:false 432:User 396:1888 176:1888 172:Date 17:File 312:PDM 151:(J) 272:. 89:. 55:)

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File:Hertz drawing of his spark transmitter 1888.png
Hertz_drawing_of_his_spark_transmitter_1888.png
Wikimedia Commons
description page there
You can help
Heinrich Hertz
spark oscillator
radio transmitter
radio waves
dipole antenna
induction coil
standing waves
Heinrich Hertz (1893) Electric Waves, MacMillan and Co., New York, translated by D. E. Jones, p. 108, fig. 25
Chetvorno
public domain
copyright term
public domain
United States
published
U.S. Copyright Office
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
depicts
inception
23:57, 3 March 2018
Thumbnail for version as of 23:57, 3 March 2018
Chetvorno

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