Exhibit 11.1 WIRELESS TELECOM GROUP, INC. COMPUTATION OF PER SHARE EARNINGS (UNAUDITED) For the Three Months For the Six Months Ended June 30, Ended June 30, --------------------------- --------------------------- 2000 1999 2000 1999 ------------ ------------ ------------ ------------ Income from continuing operations $ 194,810 $ 635,095 $ 857,488 $ 1,178,372 Income from discontinued operations and gain on sale of test equipment business net of income tax -- 34,819 -- 3,595,671 ------------ ------------ ------------ ------------ Net Income $ 194,810 $ 669,914 $ 857,488 $ 4,774,043 ============ ============ ============ ============ BASIC EARNINGS: Weighted average number of common shares Outstanding 17,240,038 17,520,410 17,201,150 17,538,752 ============ ============ ============ ============ Basic earnings per common share: Continuing operations $ 0.01 $ 0.04 $ 0.05 $ 0.07 Discontinued operations 0.00 0.00 0.00 0.20 ------------ ------------ ------------ ------------ $ 0.01 $ 0.04 $ 0.05 $ 0.27 ============ ============ ============ ============ DILUTED EARNINGS: Weighted average number of common shares Outstanding 17,240,038 17,520,410 17,201,150 17,538,752 Stock options 324,710 -- 635,007 -- ------------ ------------ ------------ ------------ Weighted average number of common shares outstanding, as adjusted 17,564,748 17,520,410 17,836,157 17,538,752 ============ ============ ============ ============ Diluted earnings per common share: Continuing operations $ 0.01 $ 0.04 $ 0.05 $ 0.07 Discontinued operations 0.00 0.00 0.00 0.20 ------------ ------------ ------------ ------------ $ 0.01 $ 0.04 $ 0.05 $ 0.27 ============ ============ ============ ============ 14