diario SWL I-56578 Antonio

This signal was copied on 9905.0 KHz/USB at 0922 UTC 22 February, although the poor quality of the recording (it mostly depends on th...

The signal appears on-air as a PSK-8 modulation of a 1800Hz single tone, symbols rate is the quite usual 2400 Baud (Fig. 1). ACF is 12...

photo from Chris Allen twitter account On 19-22 February , scientists used the HAARP ( High-frequency Active Auroral Research Progra...

few days ago, 16 Feb, I copied a 3G-HF transmission on 10958.0 KHz/USB consisting of an initial FLSU PDU (BW5 burst) followed by 13 not...

an interesting sample of a 3G-2G s witching copied on 7780.0 KHz/USB: the handshake is performed with FLSU bursts (ie 3G-ALE) and use...