SAQ transmission of July 1st, 2018

by Alberto I2PHD                                  

This time SAQ was received using the Elad FDM-S2 receiver, with the SDR program HDSDR and the excellent miniwhip antenna.

The audio of the transmission can be heard here

The receiver :


The HDSDR screen with the SAQ station tuned at 17.2 kHz (+- a few Hz...)
With respect to past years, the QRM/QRN on the VLF band has become much, much worse...



A visual excerpt of the audio signal as received by the FDM-S2 :



73  Alberto  I2PHD