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1. Re: LF: Cooperative ionosphere effects (score: 1): Author: "Alexander S. Yurkov" <[email protected]>; Date: Sat, 20 Mar 2010 15:38:12 +0000 (GMT); Anyway this power is much lower the power needed to observe 'normal whistler' man-generated. Reason is simple: requred energy 'expanded' in time. Seems factor should be ~10^4 or more? Regards, Alexan; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-03/msg00126.html (11,034 bytes)
2. LF: Cooperative ionosphere effects (score: 1): Author: "Alexander S. Yurkov" <[email protected]>; Date: Sat, 20 Mar 2010 08:38:39 +0000 (GMT); Paul, can you give a reference (http is better, say arxive.org) to some review paper on cooperative effects in ionosphere? What does it mean? You mentioned 'cooperative D-layer' before. But i have ne; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-03/msg00256.html (10,690 bytes)
3. Re: LF: Cooperative ionosphere effects (score: 1): Author: "Alexander S. Yurkov" <[email protected]>; Date: Sat, 20 Mar 2010 13:54:54 +0000 (GMT); OK. I had misunderstand you. Certanly it will be good if amateurs cooperate with researchers. It seems to me vlf (or may be lf at least) is the only area where HAM's experiments can have some reseach; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-03/msg00258.html (11,895 bytes)
4. Re: LF: Cooperative ionosphere effects (score: 1): Author: Paul Nicholson <[email protected]>; Date: Sat, 20 Mar 2010 10:50:15 +0000; Some daily plots of the background noise amplitude at 8.97kHz, each point averaged across 12Hz for 120 seconds, and rescaled to 1Hz bandwidth: http://abelian.org/vlf/live/100305.9kHz.png http://abeli; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-03/msg00302.html (15,919 bytes)
5. Re: LF: Cooperative ionosphere effects (score: 1): Author: "Alexander S. Yurkov" <[email protected]>; Date: Sat, 20 Mar 2010 15:26:49 +0000 (GMT); By the way one can imagine some 'reverse whistler' if TX radiate apropriate FM signal which is 'de-chirped' by dispersion in ionosphere. Can you roughly estimate radiated power needed to observe such; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-03/msg00567.html (11,355 bytes)

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