Author Retains CopyrightMacLean, Michael A.2012-01-312022-11-012012-01-312022-11-0119531953https://ir.wgtn.ac.nz/handle/123456789/27662A low-noise receiver for the 25 cm. band employing a balanced crystal mixer is described. The theory of noise factor measurements is developed and applied to determine the overall noise factor of the receiver. A noise factor of 9.3 db. has been achieved at the present stage of development.pdfen-NZhttps://www.wgtn.ac.nz/library/about-us/policies-and-strategies/copyright-for-the-researcharchiveScientific apparatus and instrumentsPhysicsTextAll rights, except those explicitly waived, are held by the Author