Range
SIGNAL STRENGTH
VS. DISTANCE FOR NON-LICENSED FM TRANSMITTERS
(figure is to log scale)
|
COLOR
|
RECEPTION
DIAMETER
|
AREA
|
RECEPTION
QUALITY
|
|
196
Feet
|
0.693
Acres
|
HIGH
|
|
|
1960
Feet
|
69.3
Acres
|
MEDIUM
|
|
|
5684
Feet
|
582
Acres
|
LOW
|
FCC Rules
CODE OF FEDERAL REGULATIONS
47 CFR Sec. 15.239 Subpart B: “The field strength of any emissions within the permitted 200 kHz band shall not exceed 250 microvolts/meter at 3 meters. The emission limit in this paragraph is based on measurement instrumentation employing an average detector. The provisions in Sec. 15.35 for limiting peak emissions apply.”
47 CFR Sec. 15.19 Subpart A, Paragraph 3: “All other devices shall bear the following statement in a conspicuous location on the device: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.”
This information is provided for comparison purposes only and is not intended to represent a legal document. Individual results may vary considerably. To order a copy of the FCC Rules Part 15, call the US Government, Superintendent of Documents, at (202) 512-1800. To order the correct document, ask for “CFR Title 47: Parts 1 to 199.” The cost is $24.00. Master Card and Visa are accepted.
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