<ARTICLE> 5
<LEGEND>
This Schedule contains summary information extracted from the financial
statements of TSI TelSys Corporation and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
       
                                                  
<PERIOD-TYPE>                   YEAR                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             OCT-02-1998
<PERIOD-END>                               DEC-31-1997             OCT-02-1998
<CASH>                                       2,124,734               1,416,400
<SECURITIES>                                         0                       0
<RECEIVABLES>                                1,236,445               2,397,786
<ALLOWANCES>                                         0                       0
<INVENTORY>                                    549,964                 619,228
<CURRENT-ASSETS>                             4,069,001               4,580,184
<PP&E>                                       1,327,291               1,075,607
<DEPRECIATION>                                       0                       0
<TOTAL-ASSETS>                               5,863,392               5,962,702
<CURRENT-LIABILITIES>                        5,573,356               7,868,031
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                    16,509,995              16,509,995
<OTHER-SE>                                           0                       0
<TOTAL-LIABILITY-AND-EQUITY>                 5,863,392               5,962,702
<SALES>                                      4,215,940               7,210,262
<TOTAL-REVENUES>                             4,215,940               7,210,262
<CGS>                                        3,711,580               4,910,917
<TOTAL-COSTS>                                3,711,580               4,910,917
<OTHER-EXPENSES>                             7,064,054               4,299,373
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                   0                       0
<INCOME-PRETAX>                                      0                       0
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                        (6,546,167)             (2,184,710)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                               (6,546,167)             (2,184,710)
<EPS-PRIMARY>                                    (.69)                   (.22)
<EPS-DILUTED>                                    (.69)                   (.22)