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Talk:Super high frequency

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Latest comment: 10 years ago by 212.159.113.176 in topic UHF or SHF?

This article says SHF freqs cannot 'skip' but this article from pop science counters that... http://books.google.com/books?id=Bd0DAAAAMBAJ&pg=PA84&lpg=PA84&dq=Over+The+Horizon+Microwave+Relay+telephone+system&source=bl&ots=Sj007xmk74&sig=v9oc5yX1udzefmS6SnwwzuEVmjc&hl=en&sa=X&ei=TZN0UdeIA4bJ0QGA-oCoDA&ved=0CGEQ6AEwBg#v=onepage&q=Over%20The%20Horizon%20Microwave%20Relay%20telephone%20system&f=false — Preceding unsigned comment added by 98.160.206.239 (talk) 19:40, 27 May 2013 (UTC)Reply

First of all, whatever the effect they are getting there, it is not skywave skipping. They are using some huge transmitter powers for tiny received signals. It sounds more like tropospheric scatter to me although the engineers involved don't seem to know exactly what it is. Secondly, most of the frequencies cited are not in the SHF band, the are in the UHF band. The highest frequency cited is 3700 MHz, which is only just inside the SHF range. SpinningSpark 00:11, 28 May 2013‎ (UTC)Reply
Yes, I'm pretty sure that's troposcatter. --ChetvornoTALK 19:13, 28 May 2013 (UTC)Reply

UHF or SHF?

[edit]

This article claims that "This frequency range is used for most radar transmitters, microwave ovens, wireless LANs, ", the frequency range being 3GHz to 30GHz. However, microwave ovens and most wireless LANs operate at around 2.4GHz in the UHF range, as stated here:

https://en.wikipedia.org/wiki/Ultra_high_frequency  Preceding unsigned comment added by 212.159.113.176 (talk) 21:09, 24 February 2016 (UTC)Reply