Svar till: SAQ Transmission on December 24, 2019 ( NOT FOR QSL)

[Alexander Hahn]

I received SAQ today with RST 437 at Karlsruhe/Germany, Locator JN49EA.

My equipment today was:
1. ELAD FDM-S2 and homebuilt magnetic antenna (bicycle rim)
2. RFSpace SDR-IQ and Grahn GS5-SE with Alexanderson ferrite module

Until 0700 UTC I had an almost clear VLF reception, then a lot of QRM
started at 0730 UTC, which made reception very difficult. Only the
special ferrite module for my Grahn antenna gave me a hint of recepton,
which improved later.

I tried to find the QRM source, but had no success. It was very broadband 🙁

Of course, at 0830 UTC there is no noise anymore …

Merry Christmas, Alex – DH2ID