Exhibit 15

The Board of Directors and Shareholders of Harris Corporation

We are aware of the incorporation by reference in the following Registration Statements of Harris Corporation of our reports dated October 24, 2006, January 29, 2007, and May 4, 2007 relating to the unaudited condensed consolidated interim financial statements of Harris Corporation that are included in its Forms 10-Q for the quarters ended September 29, 2006, December 29, 2006, and March 30, 2007:

Form S-8	No. 333-75114	Harris Corporation Retirement Plan
Form S-8	Nos. 33-37969; 33-51171; and 333-07985	Harris Corporation Stock Incentive Plan
Form S-8	No. 333-49006	Harris Corporation 2000 Stock Incentive Plan
Form S-3	No. 333-100823	Harris Corporation Debt and Equity Securities
Form S-3	No. 333-108486	Harris Corporation Debt and Equity Securities
Form S-8	No. 333-130124	Harris Corporation 2005 Equity Incentive Plan
Form S-3 ASR	No. 333-132238	Harris Corporation Debt and Equity Securities

/s/ Ernst & Young LLP  

Certified Public Accountants 

Jacksonville, Florida
May 4, 2007