Welcome to dmradas.co.uk, detailing my amateur radio astronomy observatory. The pages show the location of the observatory, the equipment being used and my findings and analysis. For latest downloads - presentations, articles and links.
http://dmradas.co.uk/
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Amateur Radio Astronomy Observatory | dmradas.co.uk Reviews
https://dmradas.co.uk
Welcome to dmradas.co.uk, detailing my amateur radio astronomy observatory. The pages show the location of the observatory, the equipment being used and my findings and analysis. For latest downloads - presentations, articles and links.
dmradas.co.uk
Amateur Radio Astronomy Observatory
http://dmradas.co.uk/Downloads.html
A selection of presentations, articles and links. Total Power Systems - 2010. Interferometers (Part A) - 2010. Interferometers (Part B) - 2010. VLF and Sudden Ionospheric Distrubance - 2010. Through new eyes - 2010. Solar Terrestrial Environment Physics (Project STEP) - 2010. Introduction to radio sources - 2010. Radio observations of the Milky Way - 2010. Hydrogen line - 2010. Detection of Virgo A - 2011. Construction of an amateur radio astronomy antenna - 2011. Radio telescope preamplifier head - 2011.
Amateur Radio Astronomy Observatory
http://dmradas.co.uk/Location.html
The observatory is located in SE Wales at an elevation of 240m at the top of a south facing gentle valley. It is shielded from significant Radio Interference from the North, East and West by low hills but has a clear view down the valley to the South. Interference from GPS satellites can sometimes be problem when observing at 1420MHz if the filtering and amplifier IP3 characteristics are inadequate. Day to night temperatures can fluctuate by as much as 30 degrees Celsius.
Amateur Radio Astronomy Observatory
http://dmradas.co.uk/Observations.html
1420MHz Hydrogen Line Emissions. A few examples of H line signals, Doppler and velocity profiles, extended Right Ascension repeated spectrum measurements and signal intensity distribution plots,. An example of a complex H Line spectrum showing various source components with different Doppler shifts / velocities. Repeated 1MHz wide frequency scans of H Lines as a function of Time (Right Ascension) [This method captures the peak level of any H Line signal irrespective of its exact frequency / Doppler shift].
Amateur Radio Astronomy Observatory
http://dmradas.co.uk/Biography.html
This observatory has been developed by David Morgan. A physics graduate, I undertook a Masters in Radio Astronomy at Jodrell Bank with a thesis on Lunar Aperture Synthesis Radar at 408MHz. This was followed by a Phd in Magneto Plasma Physics preparing and launching VLF receivers into the Earths’ Magnetosphere. About 5 years was then spent in the Aerospace Industry developing and testing scientific spacecraft. On taking up the subject again in 2005 it was fascinating to see how far electronic devices have...
Amateur Radio Astronomy Observatory
http://dmradas.co.uk/Construction.html
There are very stable synthesised signal generators from a few kHz to 2.6GHz. A number of spectrum analyser tracking generators (very useful) and general purpose signal and pulse generators also principally used in equipment development. A typical system connection diagram for 1420MHz using the 3m Dish and circular waveguide feed is shown below. Click Image to Enlarge. See construction of 408MHz Head Amplifier. See construction of 1420MHz Head Ampifier.
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Amateur Radio Astronomy Observatory
Welcome to dmradas.co.uk, detailing my amateur radio astronomy observatory. The pages show the location of the observatory, the equipment being used and my findings and analysis. For latest downloads - presentations, articles and links.
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