Exhibit 11.1 WIRELESS TELECOM GROUP, INC. COMPUTATION OF PER SHARE EARNINGS (Unaudited) For the Three Months For the Nine Months Ended September 30, 1998 Ended September 30, 1998 Income Shares Per Share Income Shares Per Share Net income (loss) ($135,189) $691,675 Basic EPS Income (loss) available to common shareholders (135,189) 17,557,298 ($.01) 691,675 17,533,180 $.04 Effect of Dilutive Securities Stock options - - - 41,344 Diluted EPS Income (loss) available to common shareholders plus assumed Conversions ($135,189) 17,557,298 ($.01) $691,675 17,574,524 $.04 For the Three Months For the Nine Months Ended September 30, 1997 Ended September 30, 1997 Income Shares Per Share Income Shares Per Share Net income $1,800,747 $6,182,991 Basic EPS Income available to common shareholders 1,800,747 17,445,935 $.10 6,182,991 17,430,489 $.35 Effect of Dilutive Securities Stock options - 383,597 - 391,917 Diluted EPS Income available to common shareholders plus assumed Conversions 1,800,747 17,829,532 $.10 $6,182,991 17,822,406 $.35 -13-