Wireless Call Sign History at the University of Michigan
8XA 1913 to 1917 (log book #1 & 2 in Bentley Historical Library)
WN9 1913 Signal Corp.; Michigan Technic (1913)
8XN 1916 Possibly a mis-type in Michigan Daily
8XA 5/1920 call sign re-assigned
WU9 1921 Signal Corp.
DG1XL 1925 Arctic Greenland Exploration (P. C. Oscanyan, Jr.)
8AXZ 11-1926 to 1940 (Bentley Historical Library)
8CDH 1926 (no log books)
1XL July 5, 1927 to Sept 14, 2917 Prof Hobbs Greenland Expedition. Log books #1-3 in Bentley Historical Library
NX1XL1930 – 8/1941 Professor Hobbs; University of Michigan Greenland Expedition
NU8AXZ Mar 1927 to 1932 UM Wireless Station
NU8BEK 1929 Department of Physics
W8AXH 1932 – 11/17/1941 Possibly a mis-type in Michigan Daily
W8AXZ 10-3-1932 to 11-22-1941 (log book # 1 – 9 in Bentley Historical Library)
W7DKZ 7-1934 – 1937 Camp Davis; Jackson Hole, WY.
W8ZUP 1-31-1947 to 6-13-1947 (log book # 1 in Bentley Historical Library)
W8ZSQ 5-1948 – 12-1954 West Quad Radio Club (no log books)
ZS4BL 11-1948 – 1952 Lamont-Hussey Observatory; Bloemfontein, South Africa
K8GRE 10/7/1957 East Quad Radio Club; (log book #4 in W8UM Radio Room)
W8PGW 10/28/1957 – 10-5-1985 South Quad Radio Club; (1957 – 1981 log books in W8UM Radio Room)
K8TIG 2/5/1962 to 6-17-1966 (log book; 1 – 8 in W8UM Radio Room)
W8LVN 12/5/1975 Engineering Department; William Lederer, Trustee (no log books)
W8UM 2/13/1966 to Present
(log books; numbered 1 – 8, Missing)
(log books; numbered 10 – 28, in Bentley Historical Library, 29 – 33 MISSING)
(log books; numbered 9, 34 – current, in W8UM Radio Room)