RMS noise map of the 2° < ℓ < 40°, 56° < ℓ < 60°, and |b| < 1° region observed in B-configuration of the GLOSTAR survey. Each field is made by sampling on a size of 3′.25. High noise levels are found in the fields associated with bright emissions (the star-forming regions, H II regions, and other bright radio-emitting sources), observed at low declinations (close to the Galactic center), observed in bad weather conditions, and located at the edge area of the survey. High noise striping in Galactic Latitude is due to changes in observing conditions between scans. For B-configuration data of the “pilot region” of the GLOSTAR survey (28° < ℓ < 36°, |b| < 1°), see Dzib et al. (2023).