Another night of poor reception further into Europe but, for a couple of hours W4DEX came out of the noise at Cumiana http://abelian.org/vlf/tmp/141218a.gif and averaged 11.4dB S/N in 139 uHz. Except
Last night was the best reception of W4DEX so far in Todmorden. S/N and phase in one hour steps - 19:00 -1.4dB 20:00 7.0dB -143.2 21:00 7.5dB 133.9 22:00 9.6dB 138.6 23:00 10.8dB 116.4 00:00 12.7dB 1
Stunning. Great work Paul and Dex! Fine noise management too; 11dB @ 0.12fT and 278 uHz implies approximately 2fT/root-Hz aggregate noise? Jim AA5BW Last night was the best reception of W4DEX so far
That's about right for a quiet night. That's after sferic blanking - before the blanker the background is some 20dB or more higher. The system noise floor is about 0.2 fT RMS in 1Hz. There happens t
Paul, Impressive (low) system noise and agreement of Example 6 model with results. 73, Jim AA5BW aggregate noise? That's about right for a quiet night. That's after sferic blanking - before the blank
Overnight 2014-12-18/19: The carrier was detectable in IK1QFK's on-line receiver at Cumiana from around 23:00 to 05:00 with a gap around 03:00. It barely shows up on a spectrogram though, http://abel
Last night: 2014-12-19/20 Cumiana IK1QFK - best S/N was 11.2dB from 00:17 to 05:47 in 50.5uHz, http://abelian.org/vlf/tmp/141220a.gif Signal was a bit lower than previous night and the noise a bit hi