MWOs re fusing and signal to noise, is a pdf file containing Army modification work orders MWO 11-5820-298-35/1, 11-5820-298-35/2, SIG 89 and SIG 89 Change 1 regarding modification of the Hannarlund SP-600 series receivers in military service, including R-320A, R-274A and R-274C.
Uploaded by Bob Krassa KC0TDS