Showing posts with label scatter. Show all posts
Showing posts with label scatter. Show all posts
14 Aug 2023

8m backscatter?

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In recent days, my QRP 8m FT8 has been received at odd distances. I have also received G8JNJ (247km). Now this could be tropo, aircraft refl...
13 Feb 2022

VHF/UHF FT8

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 As recent activity sessions have shown, FT8 on 2m and 70cm can be very effective. Although many QSOs are due to tropo, I am convinced that ...
11 Mar 2021

UHF/VHF scatter

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Recent QRP FT8 operations on 2m and 70cm have got me thinking. On the face of it, aircraft and tropo scatter might actually be better on 70...
1 comment:
24 Feb 2021

2m scatter using QRP FT8

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My recent article in RSGB RadCom postulates that FT8 is opening up scatter for QRP set ups. This becomes possible at any time with really l...
10 Oct 2020

VHF scatter?

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Stations spotting my 2.5W 2m FT8 to the big-wheel omni today The perceived wisdom is that long distance VHF scatter communications is due to...
29 Aug 2020

2m aircraft scatter?

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As many will know, I frequently try 2m FT8.  What puzzles me is that even will 10W and the big-wheel omni antenna (3dB over a dipole maximum...
13 Sept 2013

Optical forward scatter and frequency?

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Perhaps some of my readers can help me - what optical frequency is likely to be best for forward scatter off air molecules and dust particle...
4 comments:
26 Feb 2012

Successful 481THz NLOS test (8.63km)

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8.63km non line-of-sight reception of 481THz optical beacon Bernie G4HJW set his high power optical beacon running a 1.082kHz tone th...