Gyrator II VLF Receiver

by Rodney Howe, email ahowe at frii dot com

Circuit Description:

Spectroscopy

In Fort Collins, CO, SARA member Rodney Howe used a Radio Astronomy Supplies Spectra-Cyber receiver along with a two-dish hydrogen-line interferometer to produce the animated image below. He explains:

Interferometry

In Fort Collins, CO, SARA member Rodney Howe is doing hydrogen-line interferometry with a two-dish array and a Spectra-Cyber receiver. He sends us these images (clicking on each thumbnail will download the full high-resolution image):

 

Spectral Hydrogen, Continuum and Methanol Data Results, On Various Aperture Antennas

Jeffrey M. Lichtman jmlras at mindspring dot com
and Carl Lyster ctlyster at comcast dot net

Data may be displayed using conventional methods such as DOS, Windows Excel, or customized software for the system in use. In addition, data results will vary with different antenna types and aperture.

Solar Radio Observing

By Jon Wallace, email wallacefj_at_comcast_dot_net

Solar Flares & Prominences

Sunspots are areas of lower temperature but high activity on the sun. These are caused by the looping and shearing of the magnetic field lines due to the sun's differential rotational speeds (i.e.: equator rotates faster than poles). Many times, flares and prominences (loop-like structures) are associated with these sunspots.

(Click on thumbnails to see full-sized images)

Pages

Subscribe to Society of Amateur Radio Astronomers RSS