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Table 1.

Received Navy stations, their location and frequency of the VLF signals.

Frequency (kHz) Call sign Latitude Longitude Distance (km) Max. obscuration at mid-reflection Max. amplitude (dB) Time of max. signal fluctuation
37.5 NRK 63.85 −22.47 2322.95 09:42 UT 97.0% 6.66 09:42 UT
57.4 GXH 58.59 −3.63 1186.77 09:43 UT 87.6% 7.97 09:43 UT
81.0 GYN 53.83 −2.83 1048.66 09:40 UT 84.1% 6.55 09:42 UT
63.85 FTA63 48.54 2.58 907.08 09:39 UT 77.3% 1.61 09:45 UT
62.6 FUG 43.39 2.10 1369.29 09:34 UT 73.1% 3.98 09:45 UT
26.7 TBB 37.41 27.32 2084.28 09:53 UT 51.2% 1.16 09:56 UT

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