Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014     Visit RF Cafe on
      Menu below is just a small sample of what is here!          Visit RF Cafe on Facebook Visit RF Cafe on Twitter Visit RF Cafe on LinkedIn
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

FCC Part 15 Radio Frequency Devices
Section 15.214

The Federal Communications Commission (FCC) is the authority in the United States of America that creates and enforces the use of airwaves throughout the entire radio frequency spectrum. This group of documents contains the entirety of the FCC Part 15 regulations that concern unlicensed radio frequency devices. As with all government documents, this material is in the public domain and may be freely copied so long as the content is not changed. This copy is provided as a convenience for RF Cafe visitors. 

Click here for the Table of Contents.

 
  
[Code of Federal Regulations]
[Title 47, Volume 1]
[Revised as of October 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR15.214]
[Page 808-809]
 
                       TITLE 47--TELECOMMUNICATION
 
              CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
 
PART 15_RADIO FREQUENCY DEVICES--Table of Contents
 
                     Subpart C_Intentional Radiators
 
Sec. 15.214  Cordless telephones.
 
    (a) For equipment authorization, a single application form, FCC Form 
731, may be filed for a cordless telephone system, provided the 
application clearly identifies and provides data for all parts of the 
system to show compliance with the applicable technical requirements. 
When a single application form is submitted, both the base station and 
the portable handset must carry the same FCC identifier. The application 
shall include a fee for certification of each type of transmitter and 
for certification, if appropriate, for each type of receiver included in 
the system.
    (b) A cordless telephone that is intended to be connected to the 
public switched telephone network shall also comply with the applicable 
regulations in part 68 of this chapter. A separate procedure for 
approval under part 68 is required for such terminal equipment.
    (c) The label required under subpart A of this part shall also 
contain the following statement: ``Privacy of communications may not be 
ensured when using this phone.''
    (d) Cordless telephones shall incorporate circuitry which makes use 
of a digital security code to provide protection against unintentional 
access to the public switched telephone network by the base unit and 
unintentional ringing by the handset. These functions shall operate such 
that each access of the telephone network or ringing of the handset is 
preceded by the transmission of a code word. Access to the telephone 
network shall occur only if the code transmitted by the handset matches 
code set in the base unit. Similarly, ringing of the handset shall occur 
only if the code transmitted by the base unit matches the code set in 
the handset. The security code required by this section may also be 
employed to perform other communications functions, such as providing 
telephone billing information. This security code system is to operate 
in accordance with the following provisions.
    (1) There must be provision for at least 256 possible discrete 
digital codes. Factory-set codes must be continuously varied over at 
least 256 possible codes as each telephone is manufactured. The codes 
may be varied either randomly, sequentially, or using another systematic 
procedure.
    (2) Manufacturers must use one of the following approaches for 
facilitating variation in the geographic distribution of individual 
security codes:
    (i) Provide a means for the user to readily select from among at 
least 256 possible discrete digital codes. The cordless telephone shall 
be either in a non-operable mode after manufacture until the user 
selects a security code or the manufacturer must continuously vary the 
initial security code as each telephone is produced.
    (ii) Provide a fixed code that is continuously varied among at least 
256 discrete digital codes as each telephone is manufactured.
    (iii) Provide a means for the cordless telephone to automatically 
select a different code from among at least 256 possible discrete 
digital codes each time it is activated.
    (iv) It is permissible to provide combinations of fixed, automatic, 
and user-selectable coding provided the above criteria are met.
[[Page 809]]
    (3) A statement of the means and procedures used to achieve the 
required protection shall be provided in any application for equipment 
authorization of a cordless telephone.
[56 FR 3785, Jan. 31, 1991, as amended at 63 FR 36603, July 7, 1998; 66 
FR 7580, Jan. 24, 2001]
             Radiated Emission Limits, Additional Provisions



A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger
    KB3UON

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website