Regulator |
Country |
Comments
close by |
Published |
Implementation |
New calculator to be written? |
Help |
FCC |
USA |
Closed |
2020-04-01 and 2020-04-06 | 2021-05-031 | ![]() |
New/update
(alpha) |
Ofcom |
UK |
To: 2021-04-16 - Reply: final changes on or before
2021-05-18 |
2021-03-01 |
2021-05-18
(earliest)2 |
Possibly3 |
New (alpha) Ofcom uses ICNIRP 2020 guidelines |
Some EU† | Some EU† | n/a |
n/a |
unknown |
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Potential change from
existing ICNIRP 1998 to ICNIRP 2020 guidelines |
1985-10-08 | FCC OET Bulletin 65. |
1996-08-01 |
FCC Report
and Order, 96-326 |
1997-08-27 |
FCC Second
Memorandum Opinion and Order and Notice of Proposed Rule Making, ET Docket 93-62 |
1997-08-10 | FCC OET Bulletin 65 Edition 97-01. |
1997-10-18 | FCC OET Bulletin 65B Edition 97-01. |
2007-10-21 | v0.1 beta release. |
2012-02-04 | v1.0 release. First user proven release. |
2013-03-29 |
FCC
2013 RF Order and Notice - (changes) terminated. |
2015-08-18 | v1.2 release. Minor interface changes. |
2018-12-07 | This help page added in draft form. |
2019-06-12 | This help page expanded and updated. |
2019-12-04 |
FCC
Second
Report and Order - exemption vs. evaluation. |
2021-04-12 |
FCC OET Bulletin 65 (21-01?),
pending
re-write by FCC OET/ARRL. |
2021-04-12 |
FCC OET Bulletin 65 Supplement B (21-01?) for Radio Amateurs, pending re-write by FCC OET/ARRL. |
2021-04-14 |
This
help
page starts catch up with latest (pending) updates. |
2021-04-20 |
OMB
approval for Second Report and Order finally published in Federal
Register - final approval. |
Frequency (MHz) | Band (m) |
Peak Envelope Power (W)* |
1.800 - 2.000 | 160 |
500 |
3.500 - 4.000 | 80 |
500 |
5.351.5
- 5.366.5 |
60 |
500
[band
added
since publication(s)] |
7.000 - 7.300 | 40 |
500 |
10.100 - 10.150 | 30 |
425 |
14.000 - 14.350 | 20 |
225 |
18.068 - 18.168 | 17 |
125 |
21.000 - 21.450 | 15 |
100 |
24.890 - 24.990 | 12 |
75 |
28.000 - 29.700 | 10 |
50 |
50.000 - 54.000 | 6 |
50 |
144.000 - 148.000 | 2 |
50 |
222.000 - 225.000 | - |
50 |
420.000 - 450.000 | 70
cm |
70 |
902.000 - 928.000 | - |
150 |
1240.000 - 1300.000 | - |
200 |
2300.000 and higher | - |
250 |
Operating Mode | Duty Factor |
Morse code (CW) | 40% |
SSB phone | 20% |
FM | 100% |
RTTY/Digital | 100% |
FT4, FT8* |
50% |
AM | 100% |
Operating Mode | Duty Factor | Note |
Conversational SSB | 20% | 1 |
Conversational SSB | 40% | 2 |
Voice FM | 100% | |
FSK or RTTY | 100% | |
AFSK SSB | 100% | |
Conversational CW |
40% |
|
Carrier |
100% |
3 |
FT4, FT8 |
50% |
4 |
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