Federal Communications Commission FCC 07-79 
Before the
Federal Communications Commission
Washington, D.C. 20554
In the Matter of
Interference Immunity Performance Specifications 
for Radio Receivers
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ET Docket No. 03-65
ORDER
Adopted:  May 2, 2007    Released: May 4, 2007  
By the Commission: Commissioners Copps and Adelstein concurring and issuing a joint statement. 
1. On March 13, 2003, the Commission adopted a Notice of Inquiry (“Notice”) in this proceeding.  
In the Notice, the Commission sought information on whether it should incorporate receiver interference 
immunity performance specifications into spectrum policy decisions on a broad basis.1  
2. We find that with the passage of time, the Notice and record in this proceeding have become
outdated.  Further, to the extent receiver interference immunity performance specifications are desirable, 
they may be addressed in proceedings that are frequency band or service specific. As there does not 
appear to be a need for further Commission action at this time, we are terminating this proceeding without 
prejudice to its substantive merits.  If any party wishes to pursue these issues in the future, nothing 
precludes us from evaluating them in the context of other proceedings.
3. Accordingly, IT IS ORDERED that, pursuant to Sections 4(i) and 4(j) of the Communications 
Act, 47 U.S.C. §§ 154(i) and 154(j), ET Docket No. 03-65 IS TERMINATED, effective upon issuance of 
this Order.
FEDERAL COMMUNICATIONS COMMISSION
Marlene H. Dortch
Secretary
  
1 See Notice of Inquiry, ET Docket No. 03-65 and MM Docket No. 0-39, 18 FCC Rcd 6039 (2003).
Federal Communications Commission FCC 07-79 
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JOINT STATEMENT OF 
COMMISSIONERS MICHAEL J. COPPS AND JONATHAN S. ADELSTEIN 
CONCURRING
Re: Interference Immunity Performance Specifications for Radio Receivers, Order 
(ET Docket No. 03-65)
We have concerns about today’s decision closing the Commission’s inquiry into receiver 
performance regulation.  As we stated when the Commission opened this docket, the agency has a 
statutory duty to encourage more efficient uses of the radio spectrum.  The record the Commission has 
gathered in the ensuing period suggests that an integrated approach to regulating receiver performance 
could play an important role in achieving this goal.2  
We understand that today’s item does not foreclose the Commission from considering receiver 
standards in particular proceedings—or even from eventually issuing a general Notice of Proposed 
Rulemaking on the topic.  If anything, the record the Commission has complied so far indicates that 
receiver standards should be part of the discussion in many of the spectrum decisions our agency reaches.  
Accordingly, we hope that today’s decision closing our Notice of Inquiry does not represent the end of the 
Commission’s work in this important area.
  
2 See, e.g., Comments of the National Telecommunications and Information Administration at 2 (stating that NTIA 
has successfully adopted receiver regulations into its management of federal spectrum and concluding that, when it 
comes to commercial spectrum, “the adoption of receiver spectrum standards will result in a significant reduction in 
instances of interference and permit a notable increase in the efficiency of the use of the radio spectrum.”)