| Callsign |
Frequency |
Location of transmitter |
Remarks |
| - |
11.905 kHz |
Russia (various locations) |
Alpha-Navigation |
| - |
12.649 kHz |
Russia (various locations) |
Alpha-Navigation |
| - |
14.881 kHz |
Russia (various locations) |
|
| - |
15.625 kHz |
- |
Frequency for horizontal deflection of electron beam of TV sets (PAL) |
| - |
15.734 kHz |
- |
Frequency for horizontal deflection of electron beam of TV sets (NTSC) |
| GBR |
15.8 kHz |
Rugby, England |
(Regular transmissions ceased April 2003) Many publications listed its frequency as 16 kHz |
| JXN |
16.4 kHz |
Helgeland (Norway) |
|
| SAQ |
17.2 kHz |
Grimeton (Sweden) |
Only active at special occasions (Alexanderson Day) |
| - |
ca. 17.5 kHz |
? |
Twenty second pulses |
| ? |
17.8 kHz |
? |
Transmits occasionally Superpulses |
| RDL/UPD/UFQE/UPP/UPD8 |
18.1 kHz |
Russia (various locations) |
|
| HWU |
18.3 kHz |
Le Blanc (France) |
Frequently inactive for longer periods |
| RKS |
18.9 kHz |
Russia (various locations) |
Rarely active |
| GBZ |
19.6 kHz |
Anthorn (Britain) |
Many operation modes, even Superpulses. |
| NWC |
19.8 kHz |
Exmouth, Western Australia (AUS) |
Used for submarine communication, 1 megawatt.[2] |
| ICV |
20.27 kHz |
Tavolara (Italia) |
|
| RJH63, RJH66, RJH69, RJH77, RJH99 |
20.5 kHz |
Russia (various locations) |
Time signal transmitter Beta |
| ICV |
20.76 kHz |
Tavolara (Italia) |
|
| HWU |
20.9 kHz |
Le Blanc (France) |
|
| RDL |
21.1 kHz |
Russia (various locations) |
rarely active |
| HWU |
21.75 kHz |
Le Blanc (France) |
|
| GBZ |
22.1 kHz |
Skelton (Britain) |
|
| - |
22.2 kHz |
Ebino (Japan) |
|
| ? |
22.3 kHz |
Russia? |
Only active on 2nd of each month for a short period between 11:00 and 13:00 (respectively 10:00 and 12:00 in winter), if 2nd of each month is not a Sunday |
|
| RJH63, RJH66, RJH69, RJH77, RJH99 |
23 kHz |
Russia (various locations) |
Time signal transmitter Beta |
| DHO38 |
23.4 kHz |
near Rhauderfehn (Germany) |
submarine communication |
| NAA |
24 kHz |
Cutler, Maine (USA) |
Used for submarine communication, at 2 megawatts. [2] |