Abstract
In 1982 the Bonn 408 MHz all-sky survey was published, which up to now represents the most accurate radio map of the whole sky. The companion 1420 MHz Bonn survey of northern sky will be extended to the highest frequency all-sky survey by observations with an Argentina 30-m dish. Comparison of both surveys allow spectral index studies of high accuracy. Observations of the confusing thermal and nonthermal emission complexes along the Galactic plane need high angular resolution. The Effelsberg 100-m telescope has previously been used at 1420 MHz and 4875 MHz for surveys of the Galactic plane. At present high sensitivity observations at 2695 MHz are carried out, which have shown several previously unrecognized supernova remnants.
