648 AM

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The following radio stations broadcast on AM frequency 648 kHz:

China

Radio Caroline from the Orfordness transmitting station
- formerly broadcast BBC World Service to Western Europe until 27 March 2011.

↑ "MWLIST quick and easy: Asia and Pacific". www.mwlist.org. Retrieved 3 May 2024.
↑ "MWLIST quick and easy: Europe, Africa and Middle East". www.mwlist.org. Retrieved 3 May 2024.
↑ "中国之声──中国国家新闻广播". CNR.cn (in Chinese). 25 August 2021.
↑ Beech, Alan (February 2018). "The history of 648 kHz in the UK" (PDF). Signal. No. 46. The Vintage and Military Amateur Radio Society. pp. 16–18. Retrieved 3 May 2024 – via Broadcast Engineering Conservation Group.
↑ Sennitt, Andy (12 February 2011). "BBC officially announces closure of 648 kHz". Media Network. Radio Netherlands Worldwide. Archived from the original on 21 February 2011. Retrieved 3 May 2024.

Stations that broadcast for public reception

in kHz	17.2 20.5 23 25 25.1 25.5

Radio clocks	40 50 60 60 60 66.67 68.5 77.5 77.5 100 162

Regions 1 and 3, 9 kHz spacing	153 162 164¹ 171 177¹ 180 183¹ 189 198 207 209¹ 216 225 227¹ 234 243 252 261 270 279

Regions 1 and 3,
9 kHz spacing

Region 2,
10 kHz spacing

Regions 1 and 3,
30 kHz spacing³

¹ Non-standard frequency
² Shortwave uses a combination of AM, VSB, USB and LSB, with some NB FM and CW/morse code (in the case of time signal stations) as well as numerous frequencies, depending on the time of day/night, season, and solar activity level. A reasonably full list from 16 kHz to 27MHz can be found at
³ Regions 1 and 3 also use Region 2's frequencies as well, with 50 to 100 kHz spacing.
⁴ See also: Template:Audio broadcasting, Apex (radio band) and OIRT

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