Node s2-lg1 is the second sector of ​Large Node 1, located on the 18th floor roof of the Mudd Building at Columbia University, roughly 50m above the campus level and 60m above the street level. Sector 2's ​antenna is pointed to the northwest overlooking the intersection of Broadway and 120th St, and Manhattanville, West Harlem.

Contributors: Gulnur Avci, Sienna Brent, Sabbir Hossain, Jared Moser

Node photographs

Figure 1: Photographs of s2-lg1

Looking down from Mudd building rooftop. s2-lg1 antenna on the far left.

Coverage

​Coverage measurements were performed around the campus area in June-August 2021. In total, X measurements were taken in the streets around the large node. The measurement results are presented below.

Figure 2: Coverage measurement results for s3-lg1.
(a) Measurement results	(b) 60 degree 3dB antenna beamwidth displayed over campus map