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FM Station Separation
Standards (Section 73.215(e)) for Contour Protection Stations
The following table lists the FM spacing standards contained in
47 CFR Section 73.215(e) for FM contour protection stations in the
commercial portion of the FM band (92.1 MHz to 107.9 MHz, or Channels 221 to 300).
If the spacing between U.S. stations is less than called for under Section 73.207, then
an applicant may seek processing under 47 CFR 73.215. Under this rukle section,
the spacing requirements listed below must be met with respect to cochannel
and adjacent channel stations and vacant allotments of the various station classes.
IN ADDITION, contour protection to stations not meeting the minimum
separation requirements of Section 73.207 must be
provided.
Section 73.215 cannot be used to reduce I.F. (intermediate frequency)
separations. All stations must meet the I.F. separation requirements in
Section 73.207.
Noncommercial Educational FM stations
on Channels 218, 219, and 220 that specify contour protection with respect to
a commercial-band FM station or vacant allotment on Channels 221,
222, or 223 must meet the listed separations.
Spacings should be rounded to the nearest kilometer.
Minimum Distance Separation
Requirements in Kilometers
Section 73.215(e)
Relation
(Same
Frequency)
200 kHz
(First-Adjacent Channel)
400 or 600 kHz
(Second- or Third-Adjacent Channel)
