Business Segments (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 29, 2012	Jul. 01, 2011	Jul. 02, 2010
Selected information by business segment and geographical area
Total assets	$ 5,592.8	$ 6,172.8	$ 4,743.6
Capital Expenditures	209.9	311.3	189.9
Depreciation and Amortization	260.3	212.0	165.7
Revenue, U.S. operations	5,077.0	5,229.2	4,622.6
Lived-Lived assets, U.S. operations	580.5	770.1	575.2
Revenue, international operations	374.3	189.2	102.4
Long-Lived assets, international operations	78.9	102.7	34.5
RF Communications [Member]
Selected information by business segment and geographical area
Total assets	1,344.8	1,493.5	1,468.5
Capital Expenditures	41.2	77.7	52.4
Depreciation and Amortization	71.8	66.1	68.5
Government Communications Systems [Member]
Selected information by business segment and geographical area
Total assets	1,001.4	976.9	919.8
Capital Expenditures	44.8	45.6	45.9
Depreciation and Amortization	44.2	43.6	43.7
Integrated Network Solutions [Member]
Selected information by business segment and geographical area
Total assets	1,854.3	3,002.7	1,672.9
Capital Expenditures	72.8	47.4	62.6
Depreciation and Amortization	96.6	65.5	22.2
Corporate [Member]
Selected information by business segment and geographical area
Total assets	759.6	699.7	682.4
Capital Expenditures	11.4	25.2	13.7
Depreciation and Amortization	12.6	11.6	8.3
Segment, Discontinued Operations [Member]
Selected information by business segment and geographical area
Total assets	632.7	0	0
Capital Expenditures	39.7	115.4	15.3
Depreciation and Amortization	$ 35.1	$ 25.2	$ 23.0