Federal Communications Commission
Washington, D.C. 20554
July 15, 2009
DA 09-1541
Mr. William K. Keane, Esq.
Duane Morris LLP
505 9th St., N.W., Suite 1000
Washington, D.C. 20004-2166
Re: Spectrum Tracking Systems, Inc. – Request for Extension of Time
Industrial/Business Pool, Conventional Station WPNV955 
Dear Mr. Keane:
This letter dismisses as moot your December 22, 2008 request on behalf of Spectrum Tracking 
Systems, Inc. dba Electronic Tracking Systems (STS) for an additional extension of time for STS to 
complete the conversion of its law enforcement tracking system (LETS) operations from 217/219 MHz 
spectrum to designated LETS channels in the 216 MHz band in areas where Maritime 
Communications/Land Mobile, LLC (MC/LM) is the geographic license.1 On June 6, 2009, the Wireless 
Telecommunications Bureau accepted MC/LM’s notification regarding the lease of spectrum in those 
areas to STS.2 Because STS is now authorized to operate on 217/219 MHz spectrum pursuant to lease, it 
no longer needs an additional extension of the waiver pursuant to which it was operating.  Consequently, 
we conclude that your request for extension of time is moot.
We therefore dismiss, pursuant to Sections 4(i) and 303(r) of the Communications Act of 1934, as 
amended, 47 U.S.C. §§ 154(i), 303(r), and Section 0.331 of the Commission’s Rules, 47 C.F.R. § 0.331, 
the request for extension of time filed by Spectrum Tracking Systems, Inc. on December 22, 2008, as 
moot.
FEDERAL COMMUNICATIONS COMMISSION
Scot Stone
Deputy Chief, Mobility Division
Wireless Telecommunications Bureau
  
1 Letter dated Dec. 22, 2008 from William K. Keane, counsel for STS, to Marlene H. Dortch, Secretary, Federal 
Communications Commission; Letter dated Dec. 22, 2008 from Jon Gergen, President, STS, to Marlene H. Dortch, 
Secretary, Federal Communications Commission.  
2 See FCC File No. 0003796473 (filed Apr. 3, 2009), recon. pending.