Exhibit 11.1 WIRELESS TELECOM GROUP, INC. COMPUTATION OF PER SHARE EARNINGS (UNAUDITED) For the Three Months For the Nine Months Ended September 30, Ended September 30, 2000 1999 2000 1999 ---- ---- ---- ---- Income from continuing operations $ 543,320 $ 95,422 $ 1,397,820 $ 1,356,520 Income (loss) from discontinued operations and gain on sale of test equipment business net of income tax -- (16,934) -- 3,578,737 ----------- ----------- ----------- ----------- Net Income $ 543,320 $ 78,488 $ 1,397,820 $ 4,935,257 =========== =========== =========== =========== BASIC EARNINGS: Weighted average number of common shares Outstanding 19,189,807 19,059,701 19,148,964 19,301,834 =========== =========== =========== =========== Basic earnings per common share: Continuing $0.03 $0.00 $0.07 $0.07 Discontinued operations 0.00 0.00 0.00 0.19 ----- ----- ----- ----- $0.03 $0.00 $0.07 $0.26 ===== ===== ===== ===== DILUTED EARNINGS: Weighted average number of common shares Outstanding 19,189,807 19,059,701 19,148,964 19,301,834 Stock options 413,450 84,401 622,501 67,385 ----------- ----------- ----------- ----------- Weighted average number of common shares outstanding, as adjusted 19,603,257 19,144,102 19,771,465 19,369,219 =========== =========== =========== =========== Diluted earnings per common share: Continuing $0.03 $0.00 $0.07 $0.07 Discontinued Operations 0.00 0.00 0.00 0.18 ----- ----- ----- ----- $0.03 $0.00 $0.07 $0.25 ===== ===== ===== =====