The table below contains graphical implementations of the
FM and TV propagation curves graphs contained in Sections 73.333 and 73.699 of the
FCC's rules. We include
F(50,90) digital television service graphs,
although these are not in the FCC's rules. Lastly, we provide Figures 1 and 2
from Section 73.599 of the interference ratio curves from
FM noncommercial educational stations to TV Channel 6 stations.
These graphs have been generated in three formats, PDF, PostScript, and as PNG images.
PDF graphs should be used when the image needs resizing from the default
11 inch by 17 inch graph size, for example when printing to standard 8½" by 11" paper.
PDF files are also the quickest to download. PNG files should be used for graphs
viewed on the Internet, in the same manner (within an <IMG > tag) as .jpg or .gif
images. The PostScript version is for use with
PostScript-capable printers and is best printed on 11" x 17" paper. The
PostScript version may be viewed using GhostScript and GhostView, or other
PostScript viewer. Each graph has three options for the
graphed curves color (black, red, and blue).
The Audio Division maintains an on-line F(50,50), F(50,10), and F(50,90)
propagation
curves calculator for the F(50,50), F(50,10) and F(50,90) curves.
| F(50,50), F(50,10), and F(50,90) Propagation Curves |
| |
F(50,50)
| |
F(50,10)
| |
F(50,90)
|
FM and
TV Channels
2-6 |
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
| |
F(50,50)
| |
F(50,10)
| |
F(50,90)
|
TV Channels
7-13 |
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
| |
F(50,50) |
|
F(50,10) |
|
F(50,90) |
|---|
TV Channels
14-69 |
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
|
PDF (resizeable)
Black | Red | Blue
PNG image
Black | Red | Blue
PostScript (11"x17")
Black | Red | Blue
|
For more information about this issue, please call the Audio Division at (202) 418-2700.
FCC > Media Bureau > Audio Division
This information was updated on June 21, 2011.
