Grupa: Administrator 
Lokalizacja:: Kłodzko JO80IK
Posty: 39584 #2187165
Od: 2013-10-18
Ilość edycji wpisu: 1 | Kalkulator EME Ver 11.04 - VK3UM
TYLKO ZAREJESTROWANI I ZALOGOWANI UŻYTKOWNICY WIDZĄ LINKI » DARMOWA REJESTRACJA
Hi Gentlemen
The following release of EMECal Ver 11.04 includes significant changes to the method of obtaining the Solar flux data,
the way it is displayed and manipulated if required.
One of the previous limitations in using the 10.7cm Solar Flux was obtaining the current flux at the time of measurement. In the past
I previously only provided the IPS Learmonth Observation site which, for most was not current for your observation on the other side
of the World.
This version now allows you to
select sfu data from multiple sites and times as provided by both NOAA and Learmonth.
choose the site commensurate (or as close to) your time of measurement.
display the sfu in graphical (chart) format and see the variation of the data provided by the Observatories.
the software provides a more accurate derivation of sfu values when varying the 10.7cm flux.
provides corresponding sfu curves for maximum sfu Cycle 24 and theoretical Quiet Flux for comparison purposes.
store, recall and delete sfu data for all available sites.
the ability to modify the Adjusted Solar Flux if required.
provides an understanding of just how the sfu can vary from site to site around the World, and,
why using sfu to obtain a definitive system performance is subjective and not always an accurate nor an appropriate form of measurement.
Mind you, this may be the best method you have available given your system gain! The Help file has been updated to guide you through the new options.
I hope this will provide a greater understanding of Sun Y factor measurements and the variations that do occur even over a hourly basis.
Beware the inherent errors that can incur above 15400 MHz. This may make such measurements highly subjective and accordingly other more appropriate methods of checking system performance should be employed. (Stellar noise, Moon noise, hot /cold evaluation)
My sincere thanks to Peter G3LTF, Dave G4RGK, Charlie G3WDG and Ingolf SM6FHZ for their valued suggestions an beta testing
73 Doug VK3UM
www.vk3um.com
_________________
Life above 50,000 MHz
73! Stanisław Kłodzko JO80IK
IC-7300 + IC-9700 + (2m - 9el + 250W),
(70cm - 21 el + 250W), (23cm - 55 el + 150W)
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