TV Carrier
The early detection of Sporadic E and F2
Sporadic-E Detection (Europe)
Sporadic-E Detection (Europe)
| TV Carrier QRG (CW) | Locator | Country | Comment |
| 48.250 MHz |
IN70 | Spain | Earliest indicator of Sporadic E |
| 49.739.68 MHz | JN79 | Czech Rep. | Sporadic E indicator |
| 49.750 MHz | KO33 | Russia | Sporadic E indicator |
| 49.760.46 MHz | KO07 | Latvia | Sporadic E indicator |
| 55.250 MHz | JO20 | Belgium | Sporadic E indicator |
| Australia Channel AU0 (300kW) |
46.171MHz |
| Channel AU1 | 57.25MHz |
| Channel AU2 | 64.25MHz |
| Channel AU3 | 86.25MHz |
| Channel AU4 | 95.25MHz |
New Zealand Channel NZL1 |
45.25MHz |
| Channel NZL2 | 55.25MHz |
| Channel NZL3 | 62.25MHz |
| China Channel C1 |
49.75MHz |
| Channel C2 | 57.75MHz |
| Channel C3 | 65.75MHz |
| Channel C4 | 77.25MHz |
| Channel C5 | 85.25MHz |
F2 Detection
TV Carrier
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East Europe Channel R1 |
49.75MHz |
Channel R2 |
59.25MHz |
Channel R3 |
77.25MHz |
Channel R4 |
85.25MHz |
Channel R5 |
93.25MHz |
North- & South America Channel A2 |
55.25MHz |
Channel A3 |
61.75MHz |
Channel A4 |
67.25MHz |
Channel A5 |
77.25MHz |
Channel A6 |
83.25MHz |
Japan Channel J1 |
91.25MHz |
Channel J2 |
97.25MHz |