Exhibit12.1

GLOBAL SIGNAL INC.COMPUTATION OF RATIO OF EARNINGSTO COMBINED FIXED CHARGES AND PREFERRED SHAREDIVIDENDS(unaudited)

|                                                                         |  |                           |         |                          |  |           |         |           |  |        |         |        |  |        |         |         |  |  |
|-------------------------------------------------------------------------|--|---------------------------|---------|--------------------------|--|-----------|---------|-----------|--|--------|---------|--------|--|--------|---------|---------|--|--|
|                                                                    |  | Forthe Three Months Ended |         | For the Nine MonthsEnded |
|                                                                    |  | 9/30/2004                 |         | 9/30/2005                |  | 9/30/2004 |         | 9/30/2005 |
| Earnings                                                                |  |                      |    |                     |  |      |    |      |  |   |    |   |  |   |    |    |
| Pre-taxincome (loss) from continuing operations before minorityinterest |  | $                         | 5,322   |                     |  | $         | (14,777 | )    |  | $      | 2,578   |   |  | $      | (20,537 | )  |
| Add: Fixed charges                                                      |  |                      | 9,644   |                     |  |      | 40,825  |      |  |   | 28,281  |   |  |   | 80,628  |    |
| Less:Capitalized interest                                               |  |                      | 20      |                     |  |      | 31      |      |  |   | 49      |   |  |   | 156     |    |
| Totalearnings                                                           |  | $                         | 14,946  |                     |  | $         | 26,017  |      |  | $      | 30,810  |   |  | $      | 59,935  |    |
| Fixed Charges                                                           |  |                      |    |                     |  |      |    |      |  |   |    |   |  |   |    |    |
| Interestexpense (1)                                                     |  | $                         | 5,264   |                     |  | $         | 24,050  |      |  | $      | 15,634  |   |  | $      | 49,293  |    |
| Capitalized interest                                                    |  |                      | 20      |                     |  |      | 31      |      |  |   | 49      |   |  |   | 156     |    |
| Interest factor inrent expense                                          |  |                      | 2,892   |                     |  |      | 14,167  |      |  |   | 8,499   |   |  |   | 24,868  |    |
| Amortization of deferred debtcosts                                      |  |                      | 1,468   |                     |  |      | 2,577   |      |  |   | 4,099   |   |  |   | 6,311   |    |
| Total fixedcharges                                                      |  | $                         | 9,644   |                     |  | $         | 40,825  |      |  | $      | 28,281  |   |  | $      | 80,628  |    |
| Preferred stockdividend requirements (2)                                |  | $                         | — |                     |  | $         | — |      |  | $      | — |   |  | $      | — |    |
| Combined fixedcharges and preferred stock dividend                      |  | $                         | 9,644   |                     |  | $         | 40,825  |      |  | $      | 28,281  |   |  | $      | 80,628  |    |
| Ratio of earnings to fixed charges (3)                                  |  |                      | 1.55    |                     |  |      | 0.64    |      |  |   | 1.09    |   |  |   | 0.74    |    |
| Ratio ofearnings to combined fixed charges and preferred stockdividends |  |                      | 1.55    |                     |  |      | 0.64    |      |  |   | 1.09    |   |  |   | 0.74    |    |
|                                                                         |

|     |                                                   |
|-----|---------------------------------------------------|
| (1) | Interest expense includesderivative amortization. |

|     |                                                                                   |
|-----|-----------------------------------------------------------------------------------|
| (2) | We did not have anypreferred capital outstanding for any of the periodspresented. |

|     |                                                                                                                                                                                                                      |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (3) | The shortfall of earnings tocombined fixed charges for the three months ended September 30, 2005and the nine months ended September 30, 2004 and 2005 was approximately$14.8 million and $20.7 million,respectively. |

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