511:
697:
506:
501:
86:, or pulse width. When radio waves pass an electrical conductor, the oscillating fields induce an alternating current in the conductor. This can be
795:
629:
491:
496:
481:
585:
486:
774:
769:
764:
759:
754:
749:
744:
739:
734:
729:
724:
717:
706:
810:
690:
228:
642:
390:
47:
464:
422:
374:
683:
614:
357:
312:
201:
563:
178:
535:
307:
63:
567:
557:
342:
529:
302:
553:
454:
297:
136:
114:
800:
547:
439:
407:
363:
280:
275:
265:
131:
59:
412:
291:
218:
168:
523:
395:
385:
380:
327:
223:
163:
146:
141:
805:
608:
591:
459:
401:
347:
233:
173:
35:
27:
21:
789:
469:
444:
434:
352:
332:
317:
183:
126:
83:
55:
634:
541:
270:
248:
243:
213:
104:
87:
603:
449:
417:
337:
260:
238:
624:
194:
71:
151:
79:
75:
51:
580:
109:
322:
675:
67:
90:
and transformed into sound or other signals that carry information.
190:
158:
98:
42:
679:
661:
Dictionary of
Electronics By Rudolf F. Graf (1974). Page 467.
70:
of space. Information is carried by systematically changing (
38:
is provided as an overview of and topical guide to radio:
544:(techniques for transmitting and receiving radio waves)
186:(Aviation, Land-based commercial, Government, Marine)
46:– transmission of signals by modulation of
512:Radio stations in the South Pacific and Oceania
74:) some property of the radiated waves, such as
691:
8:
550:(adapted radio waves for use in signalling)
698:
684:
676:
611: – List of specific models of radios
518:Persons influential in the field of radio
560:(AM) radio and first voice transmission)
654:
398:(electricity and electromagnetic waves)
16:Overview of and topical guide to radio
7:
66:that pass through the air and the
14:
627:
586:Free-space optical communication
775:Technology and applied sciences
507:Radio stations in South America
502:Radio stations in North America
455:Radio frequency power amplifier
189:Mission critical communication
1:
750:Natural and physical sciences
538:(experimental demonstrations)
796:Outlines of culture and arts
58:. Electromagnetic radiation
770:Society and social sciences
765:Religion and belief systems
492:Radio stations in Australia
208:Types of radio broadcasting
827:
229:International broadcasting
25:
19:
18:
713:
643:Category:Radio by country
391:Electromagnetic radiation
255:Radio broadcasting topics
707:Knowledge (XXG) outlines
497:Radio stations in Europe
482:Radio stations in Africa
465:Superheterodyne receiver
423:Types of radio emissions
62:by means of oscillating
26:Not to be confused with
760:Philosophy and thinking
404:(electromagnetic waves)
358:Table of years in radio
313:Alexanderson alternator
202:Wireless power transfer
564:Edwin Howard Armstrong
487:Radio stations in Asia
179:Software-defined radio
152:Shortwave broadcasting
64:electromagnetic fields
745:Mathematics and logic
536:Heinrich Rudolf Hertz
435:Antenna matching unit
308:Spark-gap transmitter
48:electromagnetic waves
730:Geography and places
725:Culture and the arts
568:frequency modulation
558:amplitude modulation
343:Amplitude modulation
811:Radio-related lists
530:James Clerk Maxwell
303:Wireless telegraphy
740:History and events
735:Health and fitness
554:Reginald Fessenden
532:(theoretical work)
298:Invention of radio
137:Radio broadcasting
115:Radio broadcasting
783:
782:
718:General reference
548:Guglielmo Marconi
440:Batteryless radio
408:Radio propagation
364:Timeline of radio
281:Radio programming
276:Radio personality
266:Radio documentary
132:Direction finding
818:
700:
693:
686:
677:
662:
659:
637:
632:
631:
630:
429:Radio technology
413:Receiver (radio)
360:(events by year)
292:History of radio
287:History of radio
219:Commercial radio
169:Radio navigation
94:Essence of radio
826:
825:
821:
820:
819:
817:
816:
815:
786:
785:
784:
779:
755:People and self
709:
704:
673:
671:
666:
665:
660:
656:
651:
633:
628:
626:
623:
600:
577:
524:Michael Faraday
520:
478:
431:
396:Radio frequency
386:Carrier current
381:Antenna (radio)
372:
328:Continuous wave
289:
257:
224:Community radio
210:
164:Radio astronomy
147:FM broadcasting
142:AM broadcasting
123:
96:
54:below those of
32:
31:
24:
17:
12:
11:
5:
824:
822:
814:
813:
808:
803:
798:
788:
787:
781:
780:
778:
777:
772:
767:
762:
757:
752:
747:
742:
737:
732:
727:
721:
720:
714:
711:
710:
705:
703:
702:
695:
688:
680:
670:
669:External links
667:
664:
663:
653:
652:
650:
647:
646:
645:
639:
638:
622:
619:
618:
617:
615:Years in radio
612:
609:List of radios
606:
599:
596:
595:
594:
592:Internet radio
589:
583:
576:
573:
572:
571:
561:
551:
545:
539:
533:
527:
519:
516:
515:
514:
509:
504:
499:
494:
489:
484:
477:
476:Radio stations
474:
473:
472:
467:
462:
460:Radio software
457:
452:
447:
442:
437:
430:
427:
426:
425:
420:
415:
410:
405:
402:Radio spectrum
399:
393:
388:
383:
371:
368:
367:
366:
361:
355:
350:
348:Old-time radio
345:
340:
335:
330:
325:
320:
315:
310:
305:
300:
288:
285:
284:
283:
278:
273:
268:
263:
256:
253:
252:
251:
246:
241:
236:
234:Internet radio
231:
226:
221:
216:
209:
206:
205:
204:
199:
198:
197:
181:
176:
174:Radiotelephone
171:
166:
161:
156:
155:
154:
149:
144:
134:
129:
122:
119:
118:
117:
112:
107:
95:
92:
34:The following
28:list of radios
22:list of radios
15:
13:
10:
9:
6:
4:
3:
2:
823:
812:
809:
807:
804:
802:
799:
797:
794:
793:
791:
776:
773:
771:
768:
766:
763:
761:
758:
756:
753:
751:
748:
746:
743:
741:
738:
736:
733:
731:
728:
726:
723:
722:
719:
716:
715:
712:
708:
701:
696:
694:
689:
687:
682:
681:
678:
674:
668:
658:
655:
648:
644:
641:
640:
636:
625:
620:
616:
613:
610:
607:
605:
602:
601:
597:
593:
590:
587:
584:
582:
579:
578:
574:
569:
565:
562:
559:
555:
552:
549:
546:
543:
540:
537:
534:
531:
528:
526:(predictions)
525:
522:
521:
517:
513:
510:
508:
505:
503:
500:
498:
495:
493:
490:
488:
485:
483:
480:
479:
475:
471:
470:Tuner (radio)
468:
466:
463:
461:
458:
456:
453:
451:
448:
446:
445:Digital radio
443:
441:
438:
436:
433:
432:
428:
424:
421:
419:
416:
414:
411:
409:
406:
403:
400:
397:
394:
392:
389:
387:
384:
382:
379:
378:
377:
376:
375:Radio science
370:Radio science
369:
365:
362:
359:
356:
354:
353:Radioteletype
351:
349:
346:
344:
341:
339:
336:
334:
333:Crystal radio
331:
329:
326:
324:
321:
319:
318:Antique radio
316:
314:
311:
309:
306:
304:
301:
299:
296:
295:
294:
293:
286:
282:
279:
277:
274:
272:
269:
267:
264:
262:
259:
258:
254:
250:
247:
245:
242:
240:
237:
235:
232:
230:
227:
225:
222:
220:
217:
215:
212:
211:
207:
203:
200:
196:
192:
188:
187:
185:
184:Two-way radio
182:
180:
177:
175:
172:
170:
167:
165:
162:
160:
157:
153:
150:
148:
145:
143:
140:
139:
138:
135:
133:
130:
128:
127:Amateur radio
125:
124:
120:
116:
113:
111:
108:
106:
103:
102:
101:
100:
93:
91:
89:
85:
81:
77:
73:
69:
65:
61:
57:
56:visible light
53:
49:
45:
44:
39:
37:
29:
23:
672:
657:
635:Radio portal
575:Alternatives
556:(developed
542:Oliver Lodge
373:
290:
271:Radio format
249:Public radio
244:Pirate radio
214:Campus radio
121:Applications
105:Broadcasting
97:
41:
40:
33:
604:Bandstacked
566:(developed
450:Preselector
418:Transmitter
338:Vacuum tube
261:Disc jockey
239:Music radio
52:frequencies
790:Categories
649:References
72:modulating
20:See also:
80:frequency
76:amplitude
801:Outlines
621:See also
581:Cable FM
110:Wireless
88:detected
323:Coherer
60:travels
36:outline
570:(FM) )
68:vacuum
806:Radio
598:Other
588:(FSO)
191:TETRA
159:Radar
99:Radio
84:phase
50:with
43:Radio
193:and
195:P25
792::
82:,
78:,
699:e
692:t
685:v
30:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.