Seliverstov S V author Anfertyev V A author Tretyakov I V author Ozheredov I A author Solyankin P M author Revin L S author Vaks V L author Rusova A A author Goltsman G N author Shkurinov A P author 2017 We study characteristics of the laboratory prototype of a terahertz heterodyne receiver with an electron-heating mixer and a heterodyne based on the quantum-cascade laser. The results obtained demonstrate the possibility to use this receiver as a basis for creation of a high-sensitivity terahertz spectrometer, which can be used in many basic and practical applications. A significant advantage of this receiver will be the possibility of placing the mixer and heterodyne in the same cryostat, which will reduce the device dimensions considerably. The obtained experimental results are analyzed, and methods of optimizing the parameters of the receiver are proposed. NbN HEB mixer QCL exported from refbase (https://db.rplab.ru/refbase/show.php?record=1322), last updated on Mon, 10 May 2021 18:40:15 +0000 text http://link.springer.com/10.1007/s11141-017-9822-y http://link.springer.com/10.1007/s11141-017-9822-y 10.1007/s11141-017-9822-y Seliverstov_etal2017 2017 continuing periodical academic journal 60 7 518 524 0033-8443