Observation by Tim Haymes: Perseids by forward scatter 143Mhz

Uploaded by

Tim Haymes


Tim Haymes


2021 Aug 14 - 08:02


2021 Aug 16 - 23:21



  • FunCube Dongle+ and vertical aerial (143MHz)
  • Spectrum Lab
  • RAG configuration

N Oxfordshire

Target name



Perseids by forward scatter 143Mhz

About this image

Following the alert of increased activity found on the 14th in daylight (UK) i checked my Excel analysis and there are strong reflections over this period.
The "temperature" chart shows the number of reflections counted in 1 hr bins from Aug-11 to Aug-15.  The spectrum is a 2.5 min period at 0802UT on the 14th August.   I don't understand all the complexity, but the prolonged signal on the RHS has a regular beat superimposed. This is caused by the scanning mode of the radio transmitter.

The spectrum has time (duration) on the X-axis, and frequency shift on the Y-axis which would be an indication of direction or velocity (I believe).


Files associated with this observation
Like this image
stan armstrong
stan armstrong, 2022 Jul 09 - 23:31 UTC

just a belated thought Tim.. Way back did some lunar timings with ?? morse..and indeed Meteors with Polish Radio.. Was wondering if anything of value was possible between our 2 locations.. poss on this aspect??   Was thinking anyway of funcube etc after doing family Nostalga.. 2 Able sons often help if i need camera move etc.. If you wanted an IP Link on aWall.. then I am on 300/31Meg these days..stan 

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.