Handled by: http://www.nrcan.gc.ca/

Tjörnes Lighthouse - Year 1929. 
Active; focal plane 35 m (115 ft); two white flashes every 15 s. 12 m (39 ft) square cylindrical concrete tower with lantern and gallery. Lighthouse painted yellow, lantern red. A very tall communications tower looms over the lighthouse, as seen in Huelse's photo. 

Handled by: http://www.nipr.ac.jp/english/r_groups/t01_atmosphere_a.html

SuperDARN Saskatoon Site
By VE5AEA

The Super Dual Auroral Radar Network (SuperDARN) is an international collaborative network of HF radars that monitors ionospheric plasma convection over the majority of the northern and southern polar regions. SuperDARN currently is comprised of 9 radars in the northern hemisphere and 5 radars in the southern hemisphere. Each radar site also has, separated by 100 m from the main array and parallel to it, a four-antenna interferometer array that is used to make angle-of-arrival measurements. By measuring the phase difference between the antenna arrays it is possible to deduce the elevation angle of arrival of the incoming radio waves. This is important for identifying the HF propagation mode. http://radar2.usask.ca/index.html

The Super Dual Auroral Radar Network

Handled by: http://www.nrcan.gc.ca/

SuperDARN Research at the Institute of Space and Atmospheric Studies of the University of Saskatchewan

1. The Super Dual Auroral Radar Network 

The Super Dual Auroral Radar Network (SuperDARN) is an international collaborative network of HF radars that monitors ionospheric plasma convection over the majority of the northern and southern polar regions. SuperDARN currently is comprised of 9 radars in the northern hemisphere and 5 radars in the southern hemisphere.
 
 

(a) (b) Fig. 1: The SuperDARN fields of view in (a) the northern and (b) the southern hemispheres (geographic co-ordinates).

The location and boresite direction for all SuperDARN radars is listed in the following table: 
 

SOURCE: http://radar2.usask.ca/index.html

This is one of the two 1.5m radio telescopes, which are used to monitor solar activity at a wavelength of 10.7cm. The fully automated system tracks the Sun from sunrise until sunset. Changes in solar activity can affect power transmission, radio communications and the orbits of satellites, so the data from the system is in high demand. The daily measurements obtained from these radio telescopes are distributed to scientific, government and commercial organizations worldwide.

Maverick373, on July 28, said:

Built in the early 1960s, the antenna of the 22-MHz Radio Telescope consists of nearly 1700 poles, which support thousands of meters of wire. This telescope was used until mid-1970s to study very long radio waves (13.6m wavelength) in our galaxy. With this telescope astronomers created a detailed map of the sky visible from this site - an achievement unmatched to this day at that wavelength. Though not operational, the vast T-shaped antenna is preserved as a historical landmark.

Maverick373, on July 28, said:

The Synthesis Telescope is the main instrument at Dominion Radio Astrophysical Observatory and consists of seven 9-metre radio antennas, which are used to simulate a single 600m antenna. Three antennas are mounted on a rail track so their position can be changed. The Synthesis Telescope is used to measure distribution and motion of hydrogen gas in the Milky Way with high fidelity. Astronomers around the world use DRAO maps to study the processes of star evolution in our galaxy.