At the rank of private he fought in a radio company of a tank division in the southwestern direction of the Kalinin Front.
He was promoted to the rank of junior lieutenant and was assigned to the post of radio control assistant to the commander of the armored mechanized forces of Kalinin Front.
In 1943, the State Defense Committee, on the petition of Valeria Golubtsova, director of the Moscow Power Engineering Institute, he was recalled together with the group of young specialists to work there.
[1][2] After the war, Gutkin led the research work in the institute related to the analysis and development of complex radio engineering systems.
In 1952, Gutkn defended his doctoral dissertation, which in 1953 was published in the form of a monograph under the title "Transformation and detection of ultrahigh frequencies".