Excerpt:
“However, the effects produced by a nuclear explosion were not fully realized until the “Johnston Island Test” in 1962. This nuclear blast had a yield of 1.4 megatons at an altitude of 250 miles. The explosion damaged a number of low earth orbit satellites and caused malfunctions and early failure of others. Another effect that was noted during the blast was a blackout up to 600 miles away of high frequency radio communications that lasted for hours. It was caused by disruption of the ionosphere. It also popped circuit breakers, street lights went out, burglar alarms rang, and power lines went down in Honolulu, about 800 miles away. In Nov. 1962, all above ground testing was halted and our testing and analysis was limited to underground testing, analysis of the existing atmospheric test data, nonnuclear simulation, and theoretical calculations.”
Iran Placing Medium-Range Missiles in Venezuela; Can Reach the U.S. (12/09/10)
http://www.freerepublic.com/focus/news/2640111/posts
‘Die Welt’: Iran building rocket bases in Venezuela (17 May 2011)
http://www.freerepublic.com/focus/f-news/2721122/posts
Iran readies launch of new satellite
(Iran's second satellite launch, 11/09/2009
http://freerepublic.com/focus/f-news/2382720/posts
Russia, N.Korea, China give Iran missile aid -CIA
09/08/01
http://www.freerepublic.com/focus/fr/519198/posts
Iran military engineers on hand for N. Korea missile launch
http://www.freerepublic.com/focus/f-news/1664760/posts
(7/12/06)
10 Iranian Missile Engineers Visited N. Korea:Sankei reports(check on NK’s Chinese equipments)
http://www.freerepublic.com/focus/f-news/1658850/posts
(07/01/06)
S. Korea, U.S. verifying reports on test of new N.K. missile in Iran: source
http://www.freerepublic.com/focus/f-news/1834307/posts
(4,000 kilometer range—will reach the Vatican—May 16th, 2007)
Iran, Syria Sign Defense Agreement (2006)
http://www.freerepublic.com/focus/f-news/1650345/posts
Which date of realization seems to conflict with the finding of the the Teak test performed during Operation Hardtack.
Which caused communications impairment over a widespread area in the Pacific basin. This was due to the injection of a large quantity of fission debris into the ionosphere. The debris prevented normal ionospheric reflection of high-frequency (HF) radio waves back towards Earth, which disrupted most long-distance HF radio communications. The nuclear detonation occurred at 1050 UTC on 1 August 1958 (which was 11:50 p.m., Johnston Island local time, on 31 July 1958)
The detonation spread a layer of fission debris in the upper atmosphere and destroyed the ability of the normally ionized layers of the upper atmosphere to bend radio waves back to the Earth, thus cutting many trans-Pacific high-frequency communications circuits. This blackout lasted 9 hours in Australia and at least 2 hours in Hawaii. Honolulu telephone service was apparently not affected; the Honolulu police registered over 1,000 extra calls that night as startled residents asked for information on what they had seen.