Global DRM Transmissions Schedule

A number of bands are assigned internationally to broadcasting. The bands are denoted either by frequency or by wavelength (the higher the frequency, the shorter the wavelength):

kHz

Band

in MHz


Band

in meters

5900 - 6200

6

49

7200 - 7450

7

41

9400 - 9900

9

31

11600 - 12100

11

25

13570 - 13870

13

22

15100 - 15800

15

19

17480 - 17900

7

16

18900 - 19020

18

15

21450 - 21850

21

13

25670 - 26100

25

11

The Individual frequencies in the Schedule are in kilohertz (kHz - thousands of Hertz). A bigger unit "megahertz" (MHz -millions of Hertz) is also used. For example 11600 kHz corresponds to 11.6 MHz.

Some shortwave stations employ frequencies outside the bands shown in the Table but they are also registered in the Schedule.

Selected frequencies of stations can be usually saved into the receiver memory.

This logo is displayed for digital transmissions in Digital Radio Mondiale - DRM. You need a DRM capable receiver to listen to these transmissions.

The language of the broadcast is not always provided as the HFCC database is primarily used to determine mutual interference among stations. Therefore the programme information is not substantial for this purpose. We are however working with the HFCC members to fill in this information wherever possible.

Period of transmission: Some transmissions are not active throughout the whole season during which the schedule is valid. The remark defines in this case the specific period in a given seasonal schedule period during which the transmission is on the air. It can also indicate the day(s) of the week when the transmission is active: 1 - Sunday, 2 - Monday, 3 - Tuesday, 4 -Wednesday, 5 - Thursday, 6 - Friday, 7 - Saturday.

Transmitter power, Location: The power of the broadcast transmitter is given in kilowatts. (1 kW = 1000 Watts). Shortwave transmitters are frequently located outside bigger cities on transmitter sites that need a lot of space for the antennas and could be a source of radio pollution and interference. The list of transmitter sites around the globe is here.

Azimuth: Radio energy of shortwave transmitters is capable of covering huge world areas. Broadcasters are usually interested in delivering their programmes to a defined region and therefore - in contrast with transmitters for local broadcasting that are usually omnidirectional - directional transmitting antennas are used for shortwave broadcasting. The azimuths in the table show the angle in degrees clockwise from the true North at the site of the transmitter.

CIRAF zones coverage: The map of the world has been divided for the purposes of shortwave sound broadcasting into geographical zones since about the middle of the twentieth century. The zones are used for the planning and management and co-ordination of shortwave frequencies. See CIRAF maps on te ITU website.