We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Author Topic: Propagation over gray line 15 NOV 2023  (Read 224 times)

Online kris

  • Marconi Class DXer
  • ********
  • Posts: 8132
  • N.Poland
    • View Profile
    • Email
Propagation over gray line 15 NOV 2023
« on: November 15, 2023, 1038 UTC »
   Today I had a nice practical lesson in the propagation of radio waves through the "gray line".
 At approximately 0800 UTC the day/night boundary was across the Atlantic.
I went to channel 6160 AM to listen to music for breakfast, and here it clearly thunders S9+25 WBCQ Monticello 50kW 6000km. Korean Pyongyang BS Kanggye 50kW 7600km no trace.
 At 0800, as scheduled, AM Shortwave Radio Gold 1kW Winsen Germany 650km greeted us quietly and with fading.
  As each quarter of an hour passed, WBCQ weakened until it disappeared, and the Radio Gold signal grew stronger, now reaching (1020 UTC) S9+20.

RN da Amazonia 6180 AM 250kW Brazilia DF 9900 km I couldn't hear it in the morning, although at night they are clearly received when the channel is free.
   Theory fully confirmed by practice! ;D
RX888 ( SDR-FE-PLAY, HRD-747, Sony XDR-F1HD),
Ant. Sky Loop 180m 15m AGL, Sky Loop 120m 35m AGL
       + QRM X-phase eliminator
QTH: Gdańsk N.Poland  Ru/Sp/Gr/Sb=Russian,Spanish,Greek,Serbien
eQSL appreciated to: 13krzycho@gmail.com


Item image   Lot 10 Male DB-9 DB9 DSUB 9 Pin Solder Cup Connector Serial Connector Free Ship