Context : Radio continuum surveys of the Galactic plane are an excellent way to identify different source populations such as planetary nebulae , H ii regions , and radio stars and characterize their statistical properties .
The GLOSTAR survey will study the star formation in the Galactic plane between -2 \degr < \ell < 85 \degr and |b| < 1 \degr with unprecedented sensitivity in both , flux density ( \sim 40 \mu Jy beam ^ { -1 } ) and range of angular scales ( \sim 1 . ^ { \prime \prime } 5 to the largest radio structures in the Galaxy ) .

Aims : In this paper we present the first results obtained from a radio continuum map of a 16 square degree sized region of the Galactic plane centered on \ell = 32 \degr and b = 0 \degr ( 28 \degr < \ell < 36 \degr and |b| < 1 \degr ) .
This map has a resolution of 18″ and a sensitivity of \sim 60-150 \mu Jy beam ^ { -1 } .

Methods : We present data acquired in 40 hours of observations with the VLA in D-configuration .
Two 1 GHz wide sub-bands were observed simultaneously and they were centred at 4.7 and 6.9 GHz .
These data were calibrated and imaged using the Obit software package .
The source extraction has been performed using the BLOBCAT software package and verified through a combination of visual inspection and cross-matching with other radio and mid-infrared surveys .

Results : The final catalog consists of 1575 discrete radio sources and 27 large scale structures ( including W43 and W44 ) .
By cross-matching with other catalogs and calculating the spectral indices ( S ( \nu ) \propto \nu ^ { \alpha } ) , we have classified 231 continuum sources as H ii regions , 37 as ionization fronts , and 46 as planetary nebulae .
The longitude and latitude distribution and negative spectral indices are all consistent with the vast majority of the unclassified sources being extragalactic background sources .

Conclusions : We present a catalog of 1575 radio continuum sources and discuss their physical properties , emission nature and relation with previously reported .
These first GLOSTAR results have increased the number of reliable H ii regions in this part of the Galaxy by a factor of four .