XPost: rec.radio.amateur.moderated

VU2NSB.com - Amazing Amateur Radio

///////////////////////////////////////////
Atmospheric impact on VHF Radio Propagation

Posted: 19 Sep 2020 02:09 PM PDT https://vu2nsb.com/radio-propagation/free-space-propagation/atmospheric-vhf-radio-propagation/?utm_source=rss&utm_medium=rss&utm_campaign=atmospheric-vhf-radio-propagation

Atmospheric influence on VHF Radio Propagation The overall influence and
impact of atmospheric conditions on VHF radio propagation quite
significant. In this article when I say VHF, it would usually mean VHF and
UHF bands. Although the magnitudes of various effects would vary, the
behavior and performance of both these bands follow a similar trend. The
upper part of the UHF spectrum beyond 1GHz leading into the typical
microwave spectrum would of course exhibit fairly different behavior. Therefore, we will maintain our focus on the atmospheric impact on the VHF
and lower UHF band with emphasis on the amateur radio bands of VHF (2m) and
UHF (70cm) Secondly, when I speak of VHF radio propagation, I would be referring to only terrestrial point-to-point communication and not the earth-space communication. The parameters governing earth-space
communication are entirely different. Another important factor to keep in
mind is that the atmosphere is a very wide region above the earth extending upwards up to 650-900 Km. Within the atmosphere, there are many
sub-regions, of which, the Troposphere is the lowest region closest to
the... Click Here to Read Full Article []

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)