You also have to take into account whether the antenna will be lined up
with a runway which I don't see in this section. That part would pertain
to structures of any type and be in the FAA rules. There are I believe
two guides, one being a ratio of 20,000:1 and the other being 10,000:1
The FAA guide will likely be in feet. If you are in line with any of the
runways I'll try to find that.
> S 97.15 Station antenna structures.
> (a) Unless the amateur station licensee has received prior approval from
> the FCC, no antenna structure, including the radiating elements, tower,
> supports and all appurtenances, may be higher than 61 m (200 feet) above
> ground level at its site.
> (b) Unless the amateur station licensee has received prior approval from
> the FCC, no antenna structure, at an airport or heliport that is available
> for public use and is listed in the Airport Directory of the current
> Airman's Information Manual or in either the Alaska or Pacific Airman's
> Guide and Chart Supplement; or at an airport or heliport under construction
> that is the subject of a notice or proposal on file with the FAA, and
> except for military airports, it is clearly indicated that the airport will
> be available for public use; or at an airport or heliport that is operated
> by the armed forces of the United States; or at a place near any of these
> airports or heliports, may be higher than:
> (1) 1 m above the airport elevation for each 100 m from the nearest
> runway longer than 1 km within 6.1 km of the antenna structure.
> (2) 2 m above the airport elevation for each 100 m from the nearest
> runway shorter than 1 km within 3.1 km of the antenna structure.
> (3) 4 m above the airport elevation for each 100 m from the nearest
> landing pad within 1.5 km of the antenna structure.
> (c) An amateur station antenna structure no higher than 6.1 m (20 feet)
> above ground level at its site or no higher than 6.1 m above any natural
> object or existing manmade structure, other than an antenna structure, is
> exempt from the requirements of paragraphs (a) and (b) of this Section.
> (d) Further details as to whether an aeronautical study and/or
> obstruction marking and lighting may be required, and specifications for
> obstruction marking and lighting, are contained in Part 17 of the FCC
> Rules, Construction, Marking, and Lighting of Antenna Structures. To
> request approval to place an antenna structure higher than the limits
> specified in paragraphs (a), (b), and (c) of this Section, the licensee
> must notify the FAA on FAA Form 7460-1 and the FCC on FCC Form 854.
> (e) Except as otherwise provided herein, a station antenna structure may
> be erected at heights and dimensions sufficient to accommodate amateur
> service communications. [State and local regulation of a station antenna
> structure must not preclude amateur service communications. Rather, it
> must reasonably accommodate such communications and must constitute the
> minimum practicable regulation to accomplish the state or local authority's
> legitimate purpose. See PRB-1, 101 FCC 2d 952 (1985) for details.]
> Jack Hartley
> K4WSB / VP2MSB
> DXCC Honor RollQCWA OOTC
> "Celebrating 50 years in Ham Radio"
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