Open Access
Table 1.
VLF transmitters used in Nançay for the flare detection and their characteristics. The sixth column indicates the transmitter-receiver distance. The δf parameter is introduced in Section 2.
| Call-sign | Frequency (kHz) | Latitude (°) | Longitude (°) | Country | Distance (km) | δ f (Hz) |
|---|---|---|---|---|---|---|
| GQD | 22.1 | +54.7 | −2.9 | UK | 921 | 0 |
| NAA | 24.0 | +44.6 | −67.3 | USA | 5206 | 2.8572 × 10−5 |
| NRK | 37.5 | +63.9 | −22.5 | Iceland | 2372 | 1.4136 × 10−4 |
| NSY | 45.9 | +37.1 | +14.4 | Italy | 1519 | 2.0697 × 10−4 |
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