87:
20:
206:
Due to the 24-hour nature of the band, the wide variety of ranges that can be spanned with it, and its shared nature, it tends to be extremely crowded, and interference from other amateurs and broadcasters often limits available and usable frequencies on this band.. In recent years amateurs in east
186:
The band is most useful for long distance (DX) communications and intercontinental communication (ranges greater than 1,500 km or 1,000 miles) for one or two hours before sunset, during the night and for one or two hours after sunrise. It is extremely useful for local-to-medium distance
150:
WRC-03 in 2003, it was agreed that the broadcast stations would move out of the section 7.100–7.200 MHz on 29 March 2009 and that portion would become a worldwide exclusive amateur allocation afterwards. Releasing the remaining 100 kHz of the band to amateurs at a later date is an
187:
communications out to a range of 600–1,500 km (400–1,000 miles) or more, depending on conditions, during the day. In higher latitudes, daytime intercontinental communication is also possible during the short days of winter, for example a good path often opens between
384:
offers the bandplan below (effective 2023-06-01) as a recommendation for use by radio amateurs in that country but it does not have the force of law and should only be considered a suggestion or guideline.
58:
2, and 7.000-7.200 MHz in
Regions 1 & 3. It is allocated to radio amateurs worldwide on a primary basis; however, only 7.000-7.200 MHz is exclusively allocated to amateur radio worldwide.
131:
The 40-meter band was made available to amateurs in the United States by the Third
National Radio Conference on October 10, 1924, and allocated on a worldwide basis by the
1486:
All allocations are subject to variation by country. For simplicity, only common allocations found internationally are listed. See a band's article for specifics.
163:
This band supports both long distance (DX) and intercontinental communications between late afternoon and a few hours after sunrise, and local-to-medium distance
170:
With its unique combination of intracontinental and intercontinental communications possibilities, 40-meters is considered a key band in building a winning HF
348:
Changed on
September 25, 2023. Immediately after the change, stations that ignore international practice and operate SSB on lower frequencies appeared.
219:
In most jurisdictions the subdivision of the band into different operating modes is according to informal convention rather than legal requirement.
132:
886:
739:
195:
in the hours leading up to
European midday from late November through late January, with a long path opening to the west coast of the
719:
1499:
1489:
895:
147:
864:
1533:
152:
845:
67:
users also have primary allocations in some countries, and amateur stations must share the band with these users.
879:
804:
164:
686:
1556:
784:
664:
1469:
1462:
872:
594:
60:
560:
110:
1379:
381:
1529:
735:
1303:
1227:
626:
715:
8:
1421:
1366:
1139:
70:
40-meters is considered one of the most reliable all-season long distance communication (
894:
1290:
1276:
1256:
1233:
669:
Recommendations for
Regulation of Radio Adopted by the Third National Radio Conference
1449:
1435:
1399:
1385:
1352:
1328:
1309:
950:
138:
For many years, the portion of the band from 7.100–7.300 MHz was allocated to
1506:, but many individual administrations have commonly adopted this allocation under
1208:
937:
640:
607:
590:
575:
552:
537:
526:
175:
988:
970:
956:
769:
615:
597:
579:
564:
24:
1550:
1477:
Some administrations have authorized spectrum for amateur use in this region;
1126:
1098:
1084:
1070:
1056:
1018:
994:
931:
755:
611:
556:
541:
196:
47:
1508:
1189:
1169:
1145:
28:
380:
Canada is part of region 2 and as such is subject to the IARU band plan.
142:
outside the
Americas, and was not available to radio amateurs outside of
64:
32:
849:
86:
1112:
924:
919:
914:
171:
139:
55:
811:
1493:
830:
788:
694:
645:
1479:
others have declined to regulate frequencies above 300 GHz.
200:
192:
188:
103:
Why during WWII the top 200 kHz was lost outside of Region 2.
71:
1522:. These allocations may only apply to a group of countries.
19:
211:
have also suffered severe interference from illegal users.
208:
109:
How the regaining of 7.1 to 7.2 occurred.. You can help by
693:. International Amateur Radio Union (IARU). Archived from
143:
51:
158:
529:only (US Novice/Technician: 200 W PEP maximum TPO)
896:International amateur radio frequency allocations
106:What sharing the band with broadcasters was like.
1548:
519:
227:Europe, Africa, Middle East and Northern Asia
880:
681:
679:
677:
1182:
887:
873:
674:
167:communication during most daylight hours.
544:and data (US: < 1 kHz bandwidth)
135:in Washington, D.C., on October 4, 1927.
100:The initial 300 kHz world-wide allocation
18:
133:International Radiotelegraph Conference
1549:
756:"RAC Web: Canada 0 – 30 MHz Band Plan"
1490:World Administrative Radio Conference
868:
722:from the original on 7 September 2005
50:frequency band, spanning 7.000-7.300
665:"Frequency or wave band allocations"
81:
13:
1488:HF allocation created at the 1979
742:from the original on 3 August 2005
14:
1568:
1514:This includes a currently active
1492:. These are commonly called the "
159:Radio propagation characteristics
25:HB9XBG Full Size Vertical Antenna
1269:
1261:
1221:
1213:
437:
301:
264:
222:
85:
1520:Table of Frequency Allocations
1504:Table of Frequency Allocations
671:(October 6-10, 1924), page 15.
658:
74:) and intercontinental bands.
1:
1498:This is not mentioned in the
651:
214:
174:score during any part of the
140:short wave broadcast stations
155:aim for future conferences.
16:Amateur radio frequency band
7:
716:"ARRLWeb: US Amateur Bands"
634:
323:
311:
283:
274:
244:
232:
10:
1573:
736:"ARRLWeb: ARRL Band Plans"
320:
317:
314:
280:
277:
241:
238:
235:
77:
1527:
1484:
1475:
1454:
1440:
1426:
1412:
1390:
1378:
1371:
1357:
1319:
1302:
1295:
1281:
1243:
1226:
1199:
1159:
1138:
1131:
1117:
1103:
1089:
1075:
1061:
1023:
987:
980:
961:
949:
942:
902:
375:
1534:Electromagnetic spectrum
846:"IARU Region 3 Bandplan"
831:"IARU Region 2 Bandplan"
805:"IARU Region 1 Bandplan"
382:Radio Amateurs of Canada
343:
181:
1518:mentioned in the ITU's
770:"RSGB Band Plans (UK)"
515:
148:World Radio Conference
61:Shortwave broadcasters
35:
1249:(420.000–450.000 MHz)
791:on September 24, 2005
22:
462:Novice / Technician
27:for the 40m-band on
1557:Amateur radio bands
1516:footnote allocation
1456:241.000–250.000 GHz
1442:134.000–141.000 GHz
1428:122.250–123.000 GHz
1266:902.000–928.000 MHz
1245:430.000–440.000 MHz
1240:430.000–440.000 MHz
1218:220.000–225.000 MHz
1201:144.000–148.000 MHz
1196:144.000–146.000 MHz
1156:(50.000–54.000 MHz)
697:on 30 December 2013
445:U.S. license class
417:Basic(+), Advanced
31:with view to Mount
1509:"Article 4.4"
36:
1544:
1543:
1539:
1538:
1414:76.000–81.500 GHz
1392:47.000–47.200 GHz
1373:24.000–24.250 GHz
1359:10.000–10.500 GHz
1178:70.000–70.500 MHz
1161:50.000–54.000 MHz
1152:50.000–52.000 MHz
1133:28.000–29.700 MHz
1119:24.890–24.990 MHz
1105:21.000–21.450 MHz
1091:18.068–18.168 MHz
1077:14.000–14.350 MHz
1063:10.100–10.150 MHz
1025:5.3515–5.3665 MHz
632:
631:
513:
512:
435:
434:
373:
372:
341:
340:
299:
298:
262:
261:
146:Region 2. At the
129:
128:
1564:
1512:
1457:
1443:
1429:
1415:
1410:
1393:
1374:
1360:
1346:
1341:
1336:
1322:
1317:
1298:
1284:
1267:
1250:
1246:
1241:
1219:
1202:
1197:
1179:
1162:
1157:
1153:
1134:
1120:
1106:
1092:
1078:
1064:
1050:
1045:
1040:
1026:
1012:
1007:
1002:
983:
978:
964:
945:
905:
904:
889:
882:
875:
866:
865:
861:
859:
857:
852:on July 22, 2011
848:. Archived from
841:
839:
837:
826:
824:
822:
816:
810:. Archived from
809:
800:
798:
796:
787:. Archived from
780:
778:
776:
765:
763:
762:
751:
749:
747:
731:
729:
727:
707:
706:
704:
702:
683:
672:
662:
520:
442:
441:
388:
387:
351:
350:
309:
308:
272:
271:
230:
229:
122:
119:
89:
82:
1572:
1571:
1567:
1566:
1565:
1563:
1562:
1561:
1547:
1546:
1545:
1540:
1513:
1507:
1497:
1487:
1478:
1455:
1441:
1427:
1413:
1405:
1391:
1372:
1358:
1345:5.650–5.850 GHz
1344:
1340:5.650–5.925 GHz
1339:
1335:5.650–5.850 GHz
1334:
1321:3.300–3.500 GHz
1320:
1316:3.400–3.475 GHz
1315:
1297:2.300–2.450 GHz
1296:
1283:1.240–1.300 GHz
1282:
1265:
1248:
1247:
1244:
1239:
1217:
1200:
1195:
1177:
1160:
1155:
1154:
1151:
1132:
1118:
1104:
1090:
1076:
1062:
1049:7.000–7.200 MHz
1048:
1044:7.000–7.300 MHz
1043:
1039:7.000–7.200 MHz
1038:
1024:
1011:3.500–3.900 MHz
1010:
1006:3.500–4.000 MHz
1005:
1001:3.500–3.800 MHz
1000:
982:1.800–2.000 MHz
981:
977:1.810–1.850 MHz
976:
962:
944:135.7–137.8 kHz
943:
898:
893:
855:
853:
844:
835:
833:
829:
820:
818:
814:
807:
803:
794:
792:
785:"Ham Radio QRP"
783:
774:
772:
768:
760:
758:
754:
745:
743:
734:
725:
723:
714:
711:
710:
700:
698:
685:
684:
675:
663:
659:
654:
641:Shortwave bands
637:
518:
440:
378:
346:
304:
267:
225:
217:
184:
161:
125:
117:
114:
95:needs expansion
80:
17:
12:
11:
5:
1570:
1560:
1559:
1542:
1541:
1537:
1536:
1530:Radio spectrum
1525:
1524:
1482:
1481:
1474:
1465:
1459:
1458:
1453:
1445:
1444:
1439:
1431:
1430:
1425:
1417:
1416:
1411:
1403:
1395:
1394:
1389:
1382:
1376:
1375:
1370:
1362:
1361:
1356:
1348:
1347:
1342:
1337:
1332:
1324:
1323:
1318:
1313:
1306:
1300:
1299:
1294:
1286:
1285:
1280:
1272:
1271:
1268:
1263:
1260:
1252:
1251:
1242:
1237:
1230:
1224:
1223:
1220:
1215:
1212:
1204:
1203:
1198:
1193:
1185:
1184:
1181:
1174:
1164:
1163:
1158:
1149:
1142:
1136:
1135:
1130:
1122:
1121:
1116:
1108:
1107:
1102:
1094:
1093:
1088:
1080:
1079:
1074:
1066:
1065:
1060:
1052:
1051:
1046:
1041:
1036:
1028:
1027:
1022:
1014:
1013:
1008:
1003:
998:
991:
985:
984:
979:
974:
966:
965:
960:
953:
947:
946:
941:
934:
928:
927:
922:
917:
912:
909:
903:
900:
899:
892:
891:
884:
877:
869:
863:
862:
842:
827:
801:
781:
766:
752:
732:
709:
708:
687:"IARU Regions"
673:
656:
655:
653:
650:
649:
648:
643:
636:
633:
630:
629:
623:
620:
619:
604:
601:
600:
587:
584:
583:
572:
569:
568:
549:
546:
545:
534:
531:
530:
523:
517:
514:
511:
510:
508:
506:
504:
502:
498:
497:
495:
493:
491:
489:
485:
484:
482:
480:
478:
476:
472:
471:
469:
467:
465:
463:
459:
458:
455:
452:
449:
446:
439:
436:
433:
432:
430:
428:
426:
424:
422:
420:
418:
414:
413:
410:
407:
404:
401:
398:
395:
392:
391:License class
377:
374:
371:
370:
368:
366:
362:
361:
358:
355:
354:License class
345:
342:
339:
338:
336:
334:
332:
330:
329:IARU Region 3
326:
325:
322:
319:
316:
313:
303:
300:
297:
296:
294:
292:
290:
289:IARU Region 2
286:
285:
282:
279:
276:
266:
263:
260:
259:
257:
255:
253:
251:
250:IARU Region 1
247:
246:
243:
240:
237:
234:
224:
221:
216:
213:
207:and southeast
203:after midday.
183:
180:
160:
157:
127:
126:
124:
123:
107:
104:
101:
92:
90:
79:
76:
15:
9:
6:
4:
3:
2:
1569:
1558:
1555:
1554:
1552:
1535:
1531:
1526:
1523:
1521:
1517:
1510:
1505:
1501:
1495:
1491:
1483:
1480:
1473:
1472:
1471:
1466:
1464:
1461:
1460:
1452:
1451:
1447:
1446:
1438:
1437:
1433:
1432:
1424:
1423:
1419:
1418:
1408:
1404:
1402:
1401:
1397:
1396:
1388:
1387:
1383:
1381:
1377:
1369:
1368:
1364:
1363:
1355:
1354:
1350:
1349:
1343:
1338:
1333:
1331:
1330:
1326:
1325:
1314:
1312:
1311:
1307:
1305:
1301:
1293:
1292:
1288:
1287:
1279:
1278:
1274:
1273:
1264:
1259:
1258:
1254:
1253:
1238:
1236:
1235:
1231:
1229:
1225:
1216:
1211:
1210:
1206:
1205:
1194:
1192:
1191:
1187:
1186:
1180:
1175:
1173:
1172:
1171:
1166:
1165:
1150:
1148:
1147:
1143:
1141:
1137:
1129:
1128:
1124:
1123:
1115:
1114:
1110:
1109:
1101:
1100:
1096:
1095:
1087:
1086:
1082:
1081:
1073:
1072:
1068:
1067:
1059:
1058:
1054:
1053:
1047:
1042:
1037:
1035:
1034:
1030:
1029:
1021:
1020:
1016:
1015:
1009:
1004:
999:
997:
996:
992:
990:
986:
975:
973:
972:
968:
967:
959:
958:
954:
952:
948:
940:
939:
935:
933:
930:
929:
926:
923:
921:
918:
916:
913:
910:
907:
906:
901:
897:
890:
885:
883:
878:
876:
871:
870:
867:
851:
847:
843:
832:
828:
817:on 2005-05-14
813:
806:
802:
790:
786:
782:
771:
767:
757:
753:
741:
737:
733:
721:
717:
713:
712:
696:
692:
688:
682:
680:
678:
670:
666:
661:
657:
647:
644:
642:
639:
638:
628:
624:
622:
621:
617:
613:
609:
605:
603:
602:
599:
596:
592:
588:
586:
585:
581:
577:
573:
571:
570:
566:
562:
558:
554:
550:
548:
547:
543:
539:
535:
533:
532:
528:
524:
522:
521:
509:
507:
505:
503:
500:
499:
496:
494:
492:
490:
487:
486:
483:
481:
479:
477:
474:
473:
470:
468:
466:
464:
461:
460:
456:
453:
450:
447:
444:
443:
438:United States
431:
429:
427:
425:
423:
421:
419:
416:
415:
411:
408:
405:
402:
399:
396:
393:
390:
389:
386:
383:
369:
367:
364:
363:
359:
356:
353:
352:
349:
337:
335:
333:
331:
328:
327:
310:
307:
306:Asia-Pacific
302:IARU Region 3
295:
293:
291:
288:
287:
273:
270:
269:The Americas
265:IARU Region 2
258:
256:
254:
252:
249:
248:
231:
228:
223:IARU Region 1
220:
212:
210:
204:
202:
198:
197:United States
194:
191:and northern
190:
179:
177:
176:sunspot cycle
173:
168:
166:
156:
154:
149:
145:
141:
136:
134:
121:
112:
108:
105:
102:
99:
98:
96:
93:This section
91:
88:
84:
83:
75:
73:
68:
66:
62:
57:
53:
49:
48:amateur radio
45:
41:
34:
30:
26:
21:
1519:
1515:
1503:
1485:
1476:
1468:
1467:
1448:
1434:
1420:
1409:– 81.500 GHz
1406:
1398:
1384:
1365:
1351:
1327:
1308:
1289:
1275:
1255:
1232:
1207:
1188:
1176:
1168:
1167:
1144:
1125:
1111:
1097:
1083:
1069:
1055:
1032:
1031:
1017:
993:
969:
955:
936:
925:ITU Region 3
920:ITU Region 2
915:ITU Region 1
854:. Retrieved
850:the original
834:. Retrieved
819:. Retrieved
812:the original
793:. Retrieved
789:the original
773:. Retrieved
759:. Retrieved
744:. Retrieved
724:. Retrieved
699:. Retrieved
695:the original
691:www.iaru.org
690:
668:
660:
457:7.175–7.300
454:7.125–7.175
451:7.025–7.125
448:7.000–7.025
412:7.175–7.300
409:7.165-7.175
406:7.125-7.165
403:7.070-7.125
400:7.040-7.070
397:7.035-7.040
394:7.000–7.035
379:
365:All classes
360:7.030–7.200
357:7.000–7.030
347:
324:7.040-7.300
321:7.030-7.040
318:7.025-7.030
315:7.000-7.025
305:
284:7.050-7.300
281:7.040-7.050
278:7.000-7.040
268:
245:7.060-7.200
242:7.050-7.060
239:7.040-7.050
236:7.000-7.040
226:
218:
205:
185:
169:
162:
137:
130:
118:January 2023
115:
111:adding to it
97: with:
94:
69:
43:
39:
37:
29:Simplon Pass
963:472–479 kHz
65:land mobile
33:Fletschhorn
1528:See also:
1494:WARC bands
1407:75.500 GHz
761:2023-11-19
652:References
618:and image
582:and image
567:and image
312:40 meters
275:40 meters
233:40 meters
215:Band plans
172:contesting
56:ITU Region
44:7-MHz band
995:80 / 75 m
821:August 3,
795:August 3,
775:March 17,
746:August 3,
726:August 3,
701:6 January
488:Advanced
1551:Category
856:June 19,
836:March 3,
740:Archived
720:Archived
635:See also
614:, data,
563:, test,
559:, data,
475:General
40:40-meter
646:Skywave
78:History
1470:Sub-mm
1422:2.5 mm
1367:1.2 cm
1209:1.25 m
938:2200 m
908:Range
501:Extra
376:Canada
201:Canada
193:Europe
46:is an
1291:13 cm
1277:23 cm
1257:33 cm
1234:70 cm
971:160 m
957:630 m
911:Band
815:(PDF)
808:(PDF)
616:phone
598:phone
580:phone
565:phone
344:Japan
189:Japan
182:Usage
1450:1 mm
1436:2 mm
1400:4 mm
1386:6 mm
1353:3 cm
1329:5 cm
1310:9 cm
1127:10 m
1113:12 m
1099:15 m
1085:17 m
1071:20 m
1057:30 m
1033:40 m
1019:60 m
858:2011
838:2012
823:2005
797:2005
777:2011
748:2005
728:2005
703:2014
627:SSTV
612:RTTY
593:and
557:RTTY
542:RTTY
209:Asia
199:and
165:NVIS
153:IARU
63:and
38:The
1502:'s
1500:ITU
1463:THF
1380:EHF
1304:SHF
1228:UHF
1190:2 m
1170:4 m
1146:6 m
1140:VHF
595:SSB
561:MCW
516:Key
144:ITU
113:.
54:in
52:MHz
42:or
1553::
1532:,
1496:".
1270:—
1262:—
1222:—
1214:—
1183:—
989:HF
951:MF
932:LF
738:.
718:.
689:.
676:^
667:,
625:=
610:,
608:CW
606:=
591:CW
589:=
578:,
576:CW
574:=
555:,
553:CW
551:=
540:,
538:CW
536:=
527:CW
525:=
178:.
72:DX
23:A
1511:.
888:e
881:t
874:v
860:.
840:.
825:.
799:.
779:.
764:.
750:.
730:.
705:.
120:)
116:(
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