POWER OF ATTORNEY
        Know all by these presents, that the undersigned hereby constitutes and appoints each of 
Thomas P. Hunt and Pamela J. Kline, signing singly, the undersigned's true and lawful attorney-
in-fact to:
(1)        execute for and on behalf of the undersigned, in the undersigned's capacity as a 
director of SBA Communications Corporation (the "Company"), the Application 
for EDGAR Access (Form ID) and other related documents necessary to become 
an EDGAR filer with authorized access codes, in  accordance with the rules of 
the EDGAR filer management system;
(2)        execute for and on behalf of the undersigned, in the u
ndersigned's capacity as a 
director of the Company, Forms 3, 4, and 5 in accordance with Section 16(a) of 
the Securities Exchange Act of 1934, as amended, and the rules thereunder;
(3)        do and perform any and all acts for and on behalf of the undersigned which may 
be necessary or desirable to generate EDGAR filer access codes and to complete 
and execute any Form 3, 4, or 5, complete and execute any amendment or 
amendments thereto, and timely file such form with the United States Securities 
and Exchange Commission and any stock exchange or similar authority; and
(4)        take any other action of any type whatsoever in connection with the foregoing 
which, in the opinion of such attorney-in-fact, may be of benefit to, in the best 
interest of, or legally required by, the undersigned, it being understood that the 
documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such 
terms and conditions as such attorney-in-fact may approve in such attorney-in-
fact's discretion.
        The undersigned hereby grants to each such attorney-in-fact full power and authority to 
do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done 
in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes 
as the undersigned might or could do if personally present, with full power of substitution or 
revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-
fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of 
Attorney and the rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, ar
e not 
assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with 
Section 16 of the Securities Exchange Act of 1934, as amended.
        This Power of Attorney shall remain in full force and effect until the undersigned is no 
longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of and 
transactions in securities issued by the Company, unless earlier revoked by the undersigned in a 
signed writing delivered to the foregoing attorneys-in-fact.
               IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be 
executed as of this 2nd day of October, 2009.
                                         &n
bsp;                        /s/ George R. Krouse Jr.                                   
                                                                Name: George R. Krouse Jr.