Huang Y.-D.TMorata OKoch P.MKemper CHwang Y.-JChiong C.-CHo P.T.PChu Y.-HHuang C.-DLiu C.-THsieh F.-CTseng Y.-HCHIA-HSIANG YANGTsay J.JChang THo C.-TChiang P.-HChang C.-CJian S.-THsu S.-PChien CIguchi SAsayama SIono DGonzalez AEffland JSaini KPospieszalski MHenke DYeung KFinger RTapia VReyes N.2023-06-092023-06-0920180277786Xhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85051975685&doi=10.1117%2f12.2310127&partnerID=40&md5=809d8c8baac3894c0f639dbc854b135bhttps://scholars.lib.ntu.edu.tw/handle/123456789/632189The Atacama Large Millimeter/submillimeter Array (ALMA) Band 1 receiver covers the frequency range of 35-50 GHz. An extension of up to 52 GHz is on a best-effort basis. A total of 73 units have to be built in two phases: 8 preproduction and then 65 production units. This paper reports on the assembly, testing, and performance of the preproduction Band 1 receiver. The infrastructure, integration, and evaluation of the fully-assembled Band 1 receiver system will be covered. Finally, a discussion of the technical and managerial challenges encountered for this large number of receivers will be presented. © 2018 SPIE.ALMA; Band 1; ReceiverOptical engineering; Receivers (containers); ALMA; Atacama Large Millimeter/sub-millimeter Array (ALMA); Band 1; Best effort; Frequency ranges; Pre-production; Production units; Receiver system; Infrared detectorsconference paper10.1117/12.23101272-s2.0-85051975685