<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS                   YEAR
<FISCAL-YEAR-END>                          JUN-30-1998             JUN-30-1998             JUN-30-1998             JUN-30-1998
<PERIOD-START>                             JUL-01-1997             JUL-01-1997             JUL-01-1997             JUL-01-1998
<PERIOD-END>                               SEP-30-1997             DEC-31-1997             MAR-31-1998             JUN-30-1998
<CASH>                                           3,383                   5,164                   4,290                  24,630
<SECURITIES>                                     2,534                   2,755                   2,838                   2,636
<RECEIVABLES>                                   34,737                  35,437                  43,120                  37,084
<ALLOWANCES>                                       882                     861                   1,176                   1,166
<INVENTORY>                                     34,055                  32,370                  33,875                  25,710
<CURRENT-ASSETS>                               164,515                 166,788                 162,454                 117,091
<PP&E>                                          42,744                  43,343                  44,062                  46,177
<DEPRECIATION>                                  22,677                  24,101                  25,742                  27,112
<TOTAL-ASSETS>                                 246,409                 247,598                 234,536                 190,512
<CURRENT-LIABILITIES>                           54,760                  57,161                  64,495                  43,711
<BONDS>                                         66,263                  62,895                  60,485                  60,248
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                         1,650                   1,653                   1,665                   1,663
<OTHER-SE>                                     119,746                 121,899                 105,891                  82,890
<TOTAL-LIABILITY-AND-EQUITY>                   246,409                 247,598                 234,536                 190,512
<SALES>                                         39,258                  85,213                 129,553                 175,300
<TOTAL-REVENUES>                                39,258                  85,213                 129,553                 175,300
<CGS>                                           23,860                  50,808                  77,845                 105,130
<TOTAL-COSTS>                                   23,860                  50,808                  77,845                 105,130
<OTHER-EXPENSES>                                     0                       0                       0                   7,279<F4>
<LOSS-PROVISION>                                    47                       0                     233                     719
<INTEREST-EXPENSE>                               1,113                   2,161                   3,476                   4,468
<INCOME-PRETAX>                                  1,442                   2,909                   5,474                 (4,301)
<INCOME-TAX>                                       519                   1,048                   1,960                 (4,059)
<INCOME-CONTINUING>                                923                   1,861                   3,514                   (242)
<DISCONTINUED>                                   1,389<F1>               2,323<F1>              (8,725)<F3>            (7,518)<F5>
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     2,312                   4,184                 (5,211)                 (7,760)
<EPS-PRIMARY>                                      .14<F2>                 .25<F2>               (.32)<F2>               (.47)<F2>
<EPS-DILUTED>                                      .14                     .25                   (.31)                   (.47)
<FN>
<F1>Discontinued Operations includes the Government Division for all Periods in
This Exhibit.
<F2>For Purposes of This Exhibit, Primary means Basic.
<F3>Discontinued Operations consists of Additional Loss of $12,500,000 on Disposal
of The Microwave Networks Division.
<F4>Includes Inventory Write-Downs of $6,653,000.
<F5>Includes Gain on Sale of Business Unit of $6,290,000.
</FN>
        

</TABLE>