1 EXHIBIT 12.1 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES TELESITE SERVICES, LLC TELESITE AND ---------------------------- SPECTRASITE (PREDECESSOR) SPECTRASITE COMBINED ---------------------------- -------------- ------------- Year ended January 1- April 25- Year ended December 31, May 12, December 31, December 31, 1996 1997 1997 1997 ---------------------------- -------------- ------------- (dollars in thousands) Income (loss) before income taxes $ 2,289 $ (503) $ (3,890) $ (4,393) Equity in net loss of an affiliate - - - - Interest expense 67 36 164 200 Interest portion of rental expense 36 19 77 96 ----------- ------------- ------------- ------------- Earnings $ 2,392 $ (448) $ (3,649) $ (4,097) =========== ============= ============= ============= Interest expense $ 67 $ 36 $ 164 $ 200 Capitalized interest - - - - Interest portion of rental expense 36 19 77 96 ----------- ------------- ------------- ------------- Fixed Charges $ 103 $ 55 $ 241 $ 296 =========== ============= ============= ============= Ratio of earnings to fixed charges 23.2x - - - =========== ============= ============= ============= Earnings insufficient to cover fixed charges - $ 503 $ 3,890 $ 4,393 =========== ============= ============= ============= SPECTRASITE SPECTRASITE SPECTRASITE SPECTRASITE ------------- ------------- ------------- ---------------- 9 months 9 months Year ended Year ended ended ended December December September September 31, 1998 31, 1999 30, 1999 30, 2000 ------------- ------------- ------------- ---------------- (dollars in thousands) Income (loss) before income taxes $ (9,079) $ (97,100) $ (66,516) $ (110,401) Equity in net loss of an affiliate - 408 - 300 Interest expense 8,170 67,513 47,519 97,535 Interest portion of rental expense 196 5,967 3,483 9,300 ------------- ------------- ------------- --------------- Earnings $ (713) $ (23,212) $ (15,514) $ (3,266) ============= ============= ============= =============== Interest expense $ 8,170 $ 67,513 $ 47,519 $ 97,535 Capitalized interest 100 1,100 670 189 Interest portion of rental expense 196 5,967 3,483 9,300 ------------- ------------- ------------- ---------------- Fixed Charges $ 8,466 $ 74,580 $ 51,672 $ 107,024 ============= ============= ============= ================ Ratio of earnings to fixed charges - - - - ============= ============= ============= ================ Earnings insufficient to cover fixed charges $ 9,179 $ 97,792 $ 67,186 $ 110,290 ============= ============= ============= ================