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 permissible in your locale.

Author Topic: echo R.Taiwan Int. 6105 AM 2230 UTC 21 Sep 2021  (Read 2044 times)

Offline kris

  • Marconi Class DXer
  • ********
  • Posts: 9156
  • N.Poland
    • View Profile
    • Email
echo R.Taiwan Int. 6105 AM 2230 UTC 21 Sep 2021
« on: September 21, 2021, 2247 UTC »
2230 S9+35  anthem naxt W M Cn news
- interesting echo two-way propagation was observed, words delayed approx. 1 sec 8680 km
the same phenomenon occurs on the Sky Loop and on a dipole suspended 35 m above the ground
the signal level is the same, but the dipole has about 2s lower noise
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

Offline RobRich

  • DX Legend
  • ******
  • Posts: 1757
  • Tampa, FL USA
    • View Profile
Re: echo R.Taiwan Int. 6105 AM 2230 UTC 21 Sep 2021
« Reply #1 on: October 14, 2021, 2234 UTC »
Different station, but similar happened to me a few days ago.

https://www.hfunderground.com/board/index.php/topic,87278.msg281234.html#msg281234

I suspect mine was simultaneous reception via both short and long path.
Tampa, FL USA | US Map Grid EL88
Airspy HF+ Discovery | KiwiSDR 2 | 2x Msi2500 Msi001 | 2x RTL-SDR V3 + NE602 | 2x RTL-SDR V4
148' Loop-on-Ground | 31' Vertical | 18' End-Fed Vertical | 9' NCPL | PA0NHC MiniWhip

Offline NQC

  • Full Member
  • ***
  • Posts: 136
  • Boston,MA
    • View Profile
Re: echo R.Taiwan Int. 6105 AM 2230 UTC 21 Sep 2021
« Reply #2 on: October 26, 2021, 1323 UTC »
Hey All,

 Way back in the day I used to get two path echo at times, particularly on Asian stations  (ie on  R. Japan FROM Japanese soil)  -probably via Polar path and another route at the same time. I thought it was SOOO cool. Some of  my  ultimate Dx was "polished off" with an echo. If heard that effect , I knew it was from FAR away !

The other type of echo I have gotten at times ( heard it lately) is network programming being fed to two MW stations on the same frequency. "Interesting" , but not NEARLY  as "mysterious" or "romantic" as a long haul dx  HF    echoed sky wave  .

K

 
Station main receiver : Bed springs to  blue razor blade detector to 2000 ohm cans to steam  radiator. Grid FN 42