1528:
1538:
1572:
1517:
1548:
48:
In the United States, there is one MULTICOM frequency: 122.9 MHz. (See AIM table 4-1-2 or AIM table 4-1-1) At uncontrolled airports without a UNICOM, pilots are to self-announce on the MULTICOM frequency.
792:
1500:
1472:
1467:
492:
1613:
96:
1494:
1489:
1479:
1459:
1261:
336:
626:
42:) by aircraft near airports where no air traffic control is available. Frequency allocations vary from region to region.
1551:
1484:
1330:
346:
1256:
1350:
399:
207:
1637:
1135:
683:
485:
1246:
1241:
1266:
316:
159:
1647:
1541:
1302:
1199:
742:
537:
509:
197:
144:
1606:
1531:
1038:
478:
366:
212:
89:
1390:
1312:
1251:
958:
404:
1162:
1123:
968:
868:
797:
730:
557:
429:
260:
222:
1521:
763:
698:
651:
611:
454:
270:
1652:
1360:
1345:
1189:
1140:
1063:
963:
641:
527:
522:
414:
361:
164:
1599:
1282:
1068:
883:
828:
823:
636:
601:
124:
82:
1184:
988:
953:
873:
853:
775:
663:
584:
419:
517:
1098:
1058:
1028:
785:
720:
542:
424:
275:
139:
134:
8:
1108:
1048:
807:
769:
567:
552:
459:
306:
192:
129:
1335:
1292:
1223:
1093:
1023:
998:
933:
780:
501:
1642:
1632:
1375:
1297:
1211:
1194:
1157:
1003:
833:
802:
668:
562:
326:
1043:
1380:
1340:
1320:
1287:
1216:
1174:
1088:
943:
928:
903:
878:
838:
688:
547:
532:
311:
1587:
45:
Despite the use of uppercase letters, MULTICOM is not an abbreviation or acronym.
1008:
863:
631:
606:
594:
444:
394:
1583:
1206:
1078:
1053:
1013:
983:
858:
693:
646:
621:
579:
265:
1626:
1355:
1128:
1118:
1033:
923:
918:
908:
893:
715:
574:
280:
250:
119:
105:
20:
1233:
1073:
1018:
948:
913:
848:
747:
737:
589:
356:
255:
245:
1433:
1083:
993:
978:
938:
898:
757:
449:
439:
434:
1438:
1145:
843:
752:
708:
678:
656:
1423:
888:
703:
470:
409:
1579:
1418:
1408:
1325:
1150:
973:
351:
296:
27:
1413:
1398:
616:
371:
301:
202:
149:
1571:
74:
1443:
1403:
725:
376:
341:
227:
174:
169:
154:
64:
52:
In
Australia, there is one MULTICOM frequency: 126.7 MHz.
24:
16:
VHF radio frequency used as a Common
Traffic Advisory Frequency
1428:
1365:
673:
55:
In Brazil, there is one MULTICOM frequency: 123.45 MHz.
1370:
69:
39:
35:
1624:
1607:
486:
90:
1501:Global telecommunications regulation bodies
1614:
1600:
1537:
493:
479:
97:
83:
1625:
500:
474:
78:
1566:
1547:
34:is a frequency allocation used as a
13:
14:
1664:
208:Common traffic advisory frequency
104:
36:Common Traffic Advisory Frequency
1570:
1546:
1536:
1527:
1526:
1515:
1136:Free-space optical communication
1:
317:Maritime mobile amateur radio
1586:. You can help Knowledge by
1522:Telecommunication portal
1303:Telecommunications equipment
460:Voting (diversity combining)
198:Aircraft emergency frequency
145:General Mobile Radio Service
7:
1039:Alexander Stepanovich Popov
213:Mandatory frequency airport
58:
10:
1669:
1565:
743:Telecommunications history
405:Automatic vehicle location
1510:
1452:
1389:
1351:Public Switched Telephone
1311:
1275:
1232:
1173:
1163:telecommunication circuit
1124:Fiber-optic communication
1107:
869:Francis Blake (telephone)
816:
664:Optical telecommunication
508:
430:Dynamic range compression
385:
347:Dual-tone multi-frequency
325:
289:
261:Professional mobile radio
236:
223:Single Frequency Approach
183:
112:
1262:Orbital angular-momentum
699:Satellite communications
538:Communications satellite
455:Radiotelephony procedure
271:Specialized Mobile Radio
1638:Aviation communications
1141:Molecular communication
964:Gardiner Greene Hubbard
793:Undersea telegraph line
528:Cable protection system
165:Multi-Use Radio Service
1582:-related article is a
1283:Communication protocol
1069:Charles Sumner Tainter
884:Walter Houser Brattain
829:Edwin Howard Armstrong
637:Information revolution
237:Land-based commercial
125:Amateur radio repeater
1257:Polarization-division
989:Narinder Singh Kapany
954:Erna Schneider Hoover
874:Jagadish Chandra Bose
854:Alexander Graham Bell
585:online video platform
239:and government mobile
186:(aeronautical mobile)
1099:Vladimir K. Zworykin
1059:Almon Brown Strowger
1029:Charles Grafton Page
684:Prepaid mobile phone
612:Electrical telegraph
276:Trunked radio system
140:Public Radio Service
135:Family Radio Service
113:Amateur and hobbyist
1648:Air traffic control
1049:Johann Philipp Reis
808:Wireless revolution
770:The Telephone Cases
627:Hydraulic telegraph
307:Coast radio station
193:Air traffic control
130:Citizens band radio
1247:Frequency-division
1224:Telephone exchange
1094:Charles Wheatstone
1024:Jun-ichi Nishizawa
999:Innocenzo Manzetti
934:Reginald Fessenden
669:Optical telegraphy
502:Telecommunications
290:Marine (shipboard)
175:UHF CB (Australia)
1595:
1594:
1560:
1559:
1298:Store and forward
1293:Data transmission
1207:Network switching
1158:Transmission line
1004:Guglielmo Marconi
969:Internet pioneers
834:Mohamed M. Atalla
803:Whistled language
468:
467:
329:Selective calling
1660:
1616:
1609:
1602:
1574:
1567:
1550:
1549:
1540:
1539:
1530:
1529:
1520:
1519:
1518:
1391:Notable networks
1381:Wireless network
1321:Cellular network
1313:Types of network
1288:Computer network
1175:Network topology
1089:Thomas A. Watson
944:Oliver Heaviside
929:Philo Farnsworth
904:Daniel Davis Jr.
879:Charles Bourseul
839:John Logie Baird
548:Data compression
543:Computer network
495:
488:
481:
472:
471:
386:System elements
312:Marine VHF radio
99:
92:
85:
76:
75:
1668:
1667:
1663:
1662:
1661:
1659:
1658:
1657:
1623:
1622:
1621:
1620:
1563:
1561:
1556:
1516:
1514:
1506:
1448:
1385:
1307:
1271:
1228:
1177:
1169:
1110:
1103:
1009:Robert Metcalfe
864:Tim Berners-Lee
812:
632:Information Age
504:
499:
469:
464:
445:Rayleigh fading
387:
381:
328:
321:
285:
238:
232:
185:
179:
108:
103:
61:
17:
12:
11:
5:
1666:
1656:
1655:
1653:Aviation stubs
1650:
1645:
1640:
1635:
1619:
1618:
1611:
1604:
1596:
1593:
1592:
1575:
1558:
1557:
1555:
1554:
1544:
1534:
1524:
1511:
1508:
1507:
1505:
1504:
1497:
1492:
1487:
1482:
1477:
1476:
1475:
1470:
1462:
1456:
1454:
1450:
1449:
1447:
1446:
1441:
1436:
1431:
1426:
1421:
1416:
1411:
1406:
1401:
1395:
1393:
1387:
1386:
1384:
1383:
1378:
1373:
1368:
1363:
1358:
1353:
1348:
1343:
1338:
1333:
1328:
1323:
1317:
1315:
1309:
1308:
1306:
1305:
1300:
1295:
1290:
1285:
1279:
1277:
1273:
1272:
1270:
1269:
1264:
1259:
1254:
1249:
1244:
1242:Space-division
1238:
1236:
1230:
1229:
1227:
1226:
1221:
1220:
1219:
1214:
1204:
1203:
1202:
1192:
1187:
1181:
1179:
1171:
1170:
1168:
1167:
1166:
1165:
1155:
1154:
1153:
1143:
1138:
1133:
1132:
1131:
1121:
1115:
1113:
1105:
1104:
1102:
1101:
1096:
1091:
1086:
1081:
1079:Camille Tissot
1076:
1071:
1066:
1061:
1056:
1054:Claude Shannon
1051:
1046:
1044:Tivadar Puskás
1041:
1036:
1031:
1026:
1021:
1016:
1014:Antonio Meucci
1011:
1006:
1001:
996:
991:
986:
984:Charles K. Kao
981:
976:
971:
966:
961:
959:Harold Hopkins
956:
951:
946:
941:
936:
931:
926:
921:
916:
911:
906:
901:
896:
891:
886:
881:
876:
871:
866:
861:
859:Emile Berliner
856:
851:
846:
841:
836:
831:
826:
820:
818:
814:
813:
811:
810:
805:
800:
798:Videotelephony
795:
790:
789:
788:
783:
773:
766:
761:
755:
750:
745:
740:
735:
734:
733:
728:
723:
713:
712:
711:
701:
696:
694:Radiotelephone
691:
686:
681:
676:
671:
666:
661:
660:
659:
649:
644:
639:
634:
629:
624:
619:
614:
609:
604:
599:
598:
597:
592:
587:
582:
580:Internet video
572:
571:
570:
565:
560:
555:
545:
540:
535:
530:
525:
520:
514:
512:
506:
505:
498:
497:
490:
483:
475:
466:
465:
463:
462:
457:
452:
447:
442:
437:
432:
427:
422:
417:
412:
407:
402:
397:
391:
389:
388:and principles
383:
382:
380:
379:
374:
369:
364:
359:
354:
349:
344:
339:
333:
331:
323:
322:
320:
319:
314:
309:
304:
299:
293:
291:
287:
286:
284:
283:
278:
273:
268:
266:Radio repeater
263:
258:
253:
248:
242:
240:
234:
233:
231:
230:
225:
220:
215:
210:
205:
200:
195:
189:
187:
181:
180:
178:
177:
172:
167:
162:
157:
152:
147:
142:
137:
132:
127:
122:
116:
114:
110:
109:
102:
101:
94:
87:
79:
73:
72:
67:
60:
57:
15:
9:
6:
4:
3:
2:
1665:
1654:
1651:
1649:
1646:
1644:
1641:
1639:
1636:
1634:
1631:
1630:
1628:
1617:
1612:
1610:
1605:
1603:
1598:
1597:
1591:
1589:
1585:
1581:
1576:
1573:
1569:
1568:
1564:
1553:
1545:
1543:
1535:
1533:
1525:
1523:
1513:
1512:
1509:
1502:
1498:
1496:
1493:
1491:
1488:
1486:
1483:
1481:
1478:
1474:
1471:
1469:
1466:
1465:
1463:
1461:
1458:
1457:
1455:
1451:
1445:
1442:
1440:
1437:
1435:
1432:
1430:
1427:
1425:
1422:
1420:
1417:
1415:
1412:
1410:
1407:
1405:
1402:
1400:
1397:
1396:
1394:
1392:
1388:
1382:
1379:
1377:
1374:
1372:
1369:
1367:
1364:
1362:
1359:
1357:
1354:
1352:
1349:
1347:
1344:
1342:
1339:
1337:
1334:
1332:
1329:
1327:
1324:
1322:
1319:
1318:
1316:
1314:
1310:
1304:
1301:
1299:
1296:
1294:
1291:
1289:
1286:
1284:
1281:
1280:
1278:
1274:
1268:
1267:Code-division
1265:
1263:
1260:
1258:
1255:
1253:
1252:Time-division
1250:
1248:
1245:
1243:
1240:
1239:
1237:
1235:
1231:
1225:
1222:
1218:
1215:
1213:
1210:
1209:
1208:
1205:
1201:
1198:
1197:
1196:
1193:
1191:
1188:
1186:
1183:
1182:
1180:
1178:and switching
1176:
1172:
1164:
1161:
1160:
1159:
1156:
1152:
1149:
1148:
1147:
1144:
1142:
1139:
1137:
1134:
1130:
1129:optical fiber
1127:
1126:
1125:
1122:
1120:
1119:Coaxial cable
1117:
1116:
1114:
1112:
1106:
1100:
1097:
1095:
1092:
1090:
1087:
1085:
1082:
1080:
1077:
1075:
1072:
1070:
1067:
1065:
1062:
1060:
1057:
1055:
1052:
1050:
1047:
1045:
1042:
1040:
1037:
1035:
1034:Radia Perlman
1032:
1030:
1027:
1025:
1022:
1020:
1017:
1015:
1012:
1010:
1007:
1005:
1002:
1000:
997:
995:
992:
990:
987:
985:
982:
980:
977:
975:
972:
970:
967:
965:
962:
960:
957:
955:
952:
950:
947:
945:
942:
940:
937:
935:
932:
930:
927:
925:
924:Lee de Forest
922:
920:
919:Thomas Edison
917:
915:
912:
910:
909:Donald Davies
907:
905:
902:
900:
897:
895:
894:Claude Chappe
892:
890:
887:
885:
882:
880:
877:
875:
872:
870:
867:
865:
862:
860:
857:
855:
852:
850:
847:
845:
842:
840:
837:
835:
832:
830:
827:
825:
822:
821:
819:
815:
809:
806:
804:
801:
799:
796:
794:
791:
787:
784:
782:
779:
778:
777:
774:
772:
771:
767:
765:
762:
759:
756:
754:
751:
749:
746:
744:
741:
739:
738:Smoke signals
736:
732:
729:
727:
724:
722:
719:
718:
717:
716:Semiconductor
714:
710:
707:
706:
705:
702:
700:
697:
695:
692:
690:
687:
685:
682:
680:
677:
675:
672:
670:
667:
665:
662:
658:
655:
654:
653:
650:
648:
645:
643:
640:
638:
635:
633:
630:
628:
625:
623:
620:
618:
615:
613:
610:
608:
605:
603:
600:
596:
593:
591:
588:
586:
583:
581:
578:
577:
576:
575:Digital media
573:
569:
566:
564:
561:
559:
556:
554:
551:
550:
549:
546:
544:
541:
539:
536:
534:
531:
529:
526:
524:
521:
519:
516:
515:
513:
511:
507:
503:
496:
491:
489:
484:
482:
477:
476:
473:
461:
458:
456:
453:
451:
448:
446:
443:
441:
438:
436:
433:
431:
428:
426:
423:
421:
418:
416:
413:
411:
408:
406:
403:
401:
398:
396:
393:
392:
390:
384:
378:
375:
373:
370:
368:
365:
363:
360:
358:
355:
353:
350:
348:
345:
343:
340:
338:
335:
334:
332:
330:
324:
318:
315:
313:
310:
308:
305:
303:
300:
298:
295:
294:
292:
288:
282:
281:Walkie-talkie
279:
277:
274:
272:
269:
267:
264:
262:
259:
257:
254:
252:
251:Business band
249:
247:
244:
243:
241:
235:
229:
226:
224:
221:
219:
216:
214:
211:
209:
206:
204:
201:
199:
196:
194:
191:
190:
188:
182:
176:
173:
171:
168:
166:
163:
161:
158:
156:
153:
151:
148:
146:
143:
141:
138:
136:
133:
131:
128:
126:
123:
121:
120:Amateur radio
118:
117:
115:
111:
107:
106:Two-way radio
100:
95:
93:
88:
86:
81:
80:
77:
71:
68:
66:
63:
62:
56:
53:
50:
46:
43:
41:
37:
33:
29:
26:
22:
1588:expanding it
1577:
1562:
1234:Multiplexing
1109:Transmission
1074:Nikola Tesla
1064:Henry Sutton
1019:Samuel Morse
949:Robert Hooke
914:Amos Dolbear
849:John Bardeen
768:
748:Telautograph
652:Mobile phone
607:Edholm's law
590:social media
523:Broadcasting
367:Quik-Call II
357:Push-to-talk
327:Signaling /
256:Mobile radio
246:Base station
217:
54:
51:
47:
44:
31:
18:
1434:NPL network
1146:Radio waves
1084:Alfred Vail
994:Hedy Lamarr
979:Dawon Kahng
939:Elisha Gray
899:Yogen Dalal
824:Nasir Ahmed
758:Teleprinter
622:Heliographs
450:Tone remote
440:Link budget
435:Fade margin
362:Quik-Call I
1627:Categories
1480:Antarctica
1439:Toasternet
1361:Television
844:Paul Baran
776:Television
760:(teletype)
753:Telegraphy
731:transistor
709:Phryctoria
679:Photophone
657:Smartphone
647:Mass media
160:Mobile rig
1464:Americas
1453:Locations
1424:Internet2
1185:Bandwidth
889:Vint Cerf
786:streaming
764:Telephone
704:Semaphore
595:streaming
420:DC remote
410:Call sign
184:Aviation
1643:Avionics
1633:Airbands
1580:aviation
1532:Category
1419:Internet
1409:CYCLADES
1326:Ethernet
1276:Concepts
1200:terminal
1151:wireless
974:Bob Kahn
817:Pioneers
642:Internet
533:Cable TV
425:Dispatch
352:MDC-1200
297:2182 kHz
218:MULTICOM
59:See also
32:MULTICOM
28:aviation
25:Canadian
1552:Commons
1542:Outline
1495:Oceania
1414:FidoNet
1399:ARPANET
1212:circuit
781:digital
510:History
395:Antenna
372:Selcall
302:500 kHz
203:Airband
150:KDR 444
1490:Europe
1460:Africa
1444:Usenet
1404:BITNET
1341:Mobile
1217:packet
726:MOSFET
721:device
518:Beacon
377:SELCAL
342:D-STAR
228:UNICOM
170:PMR446
155:LPD433
65:UNICOM
1578:This
1473:South
1468:North
1429:JANET
1366:Telex
1356:Radio
1195:Nodes
1190:Links
1111:media
689:Radio
674:Pager
602:Drums
568:video
563:image
553:audio
337:CTCSS
1584:stub
1485:Asia
1371:UUCP
1331:ISDN
400:APRS
70:CTAF
40:CTAF
23:and
21:U.S.
1376:WAN
1346:NGN
1336:LAN
617:Fax
558:DCT
415:CAD
19:In
1629::
30:,
1615:e
1608:t
1601:v
1590:.
1503:)
1499:(
494:e
487:t
480:v
98:e
91:t
84:v
38:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.