Wide-field, deep VLA radio image of 1E 1740.7−2942 at the 6 cm wavelength obtained after combining all the visibility data listed in Table 1. The corresponding synthesized beam was 8.′′16 × 3.′′47, with position angle of −1.°2. The yellow box outlines the region occupied by the microquasar jets that we study with further detail in the rest of this work, while the long filamentary structure is the famous Galactic center Snake (Yusef-Zadeh et al. 1984). The horizontal yellow bar gives the angular scale. The total integration time amounts to 30 h. The resulting rms noise in this highly confused area of the Galactic center is estimated as 20 μJy beam^-1. Brightness level in a logarithmic scale is given by the color vertical bar in Jy beam^-1. North is up and east is left.