  As part of the GLOSTAR survey we have used the VLA in its B-configuration to
observe the part of the Galactic plane between longitudes of 28d and 36d and
latitudes from -1d to +1d at the C-band (4--8 GHz). To reduce the contamination
of extended sources that are not well recovered by our coverage of the (u,
v)-plane we discarded short baselines that are sensitive to emission on angular
scales $<4"$. The resulting radio continuum images have an angular resolution
of 1.0", and sensitivity of $\sim60 \mu$Jy~beam$^{-1}$; making it the most
sensitive radio survey covering a large area of the Galactic plane with this
angular resolution. An automatic source extraction algorithm was used in
combination with visual inspection to identify a total of 3325 radio sources. A
total of 1457 radio sources are $\geq7\sigma$ and comprise our highly reliable
catalog; 72 of these are grouped as 22 fragmented sources, e.g., multiple
components of an extended and resolved source. To explore the nature of the
catalogued radio sources we searched for counterparts at millimeter and
infrared wavelengths. Our classification attempts resulted in 93 HII region
candidates, 104 radio stars, 64 planetary nebulae, while most of the remaining
radio sources are suggested to be extragalactic sources. We investigated the
spectral indices ($\alpha$, $S_\nu\propto\nu^\alpha$) of radio sources
classified as HII region candidates and found that many have negative values.
This may imply that these radio sources represent young stellar objects that
are members of the star clusters around the high mass stars that excite the HII
regions, but not these HII regions themselves. By comparing the peak flux
densities from the GLOSTAR and CORNISH surveys we have identified 49 variable
radio sources, most of them with an unknown nature. Additionally, we provide
the list of 1866 radio sources detected within 5 to 7$\sigma$ levels.
