Arris 8-K Entry into a Material Definitive Agreement

Exhibit 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(in thousands, except for ratios)

															Nine Months Ended
															September 30,
	2001			2002			2003			2004			2005		2005		2006
Interest	$	15,178		$	18,792		$	12,861		$	5,006		$	2,101	$	2,033	$	50
Add interest element implicit on rentals		2,600			3,657			2,693			2,147			1,716		1,287		1,747
Total Fixed Charges	$	17,778		$	22,449		$	15,554		$	7,153		$	3,817	$	3,320	$	1,797
Pretax income from continuing operations	$	(47,671	)	$	(121,213	)	$	(47,664	)	$	(30,402	)	$	51,788	$	29,759	$	74,597
Add fixed charges		17,778			22,449			15,554			7,153			3,817		3,320		1,797
	$	(29,893	)	$	(98,764	)	$	(32,110	)	$	(23,249	)	$	55,605	$	33,079	$	76,394
Deficiency	$	(65,449	)	$	(143,662	)	$	(63,218	)	$	(37,555	)		N/A		N/A		N/A
Ratio of earnings to fixed charges (1)		(2	)		(3	)		(4	)		(5	)		14.57		9.96		42.52

(1)	For purposes of the calculation of ratio of earnings to fixed charges, earnings are defined as earnings before income taxes plus fixed charges. Fixed charges consist of interest expense on all indebtedness and rental expense.
(2)	As a result of the loss for the fiscal year ended December 31, 2001 earnings did not cover fixed charges by $65,449
(3)	As a result of the loss for the fiscal year ended December 31, 2002 earnings did not cover fixed charges by $143,662
(4)	As a result of the loss for the fiscal year ended December 31, 2003 earnings did not cover fixed charges by $63,218
(5)	As a result of the loss for the fiscal year ended December 31, 2004 earnings did not cover fixed charges by $37,555