Chapter 4 - High Intensity Radio Transmission Areas

Question 1

GENERAL

Answer 1

These procedures are established to aid in the prevention of aircraft mishaps because of encountering
High Intensity Radio Transmission Areas (HIRTAs). Aviators must use these procedures when flying close
to HIRTA transmitters and when reporting suspected anomalies. Aircrews will comply with procedures
established in current HIRTA messages.

Question 2

PROCEDURES

Answer 2

The aviation safety officer will coordinate all Army Aircraft Accident Report (AAAR) information received concerning HIRTA with the flight operations officer prior to processing.

Aviators will submit an AAAR for all suspected anomalies. The following information, as a minimum, will be included:

 Aircraft type
 Aircraft altitude
 Suspected source location
 Effects encountered in the aircraft

Question 3

PROCEDURES CAUTION

Answer 3

AAARs that are submitted must be stored and transmitted at the
SECRET//NORFORN classification.

Question 4

KA’ENA POINT HIRTA

Answer 4

No-Fly 0-4000’ MSL Ka‘ena PT Tracking station 04Q EJ 76375 85302, 3000 ft. radius.

No-Fly 0-1000’ AGL Com Earth Tracking Station 04Q EJ 77928 83550

HIRTA Point, Avoid land by 1.5NM for electro-explosive device hazards, Pacific AF/D.

NAVIGATIONAL WARNING: Electromagnetic radiation will continuously exist within a 2800’ radius and 2800 feet above all antenna systems along a three-mile stretch of mountain ridge between
21°34’19.1N, 158°16’00.0” W and 21°37’17.0” N, 158°13’25.5” was part of the Ka’ena Point Satellite
Tracking Station, Oahu, Hawai’i. Helicopters and slow speed aircraft, including hang gliders, flying within
the above airspace will be exposed to direct radiation which may produce harmful effects to personnel and
equipment. Radiation is not visually apparent and must be presumed by all pilots to continuously exist 24
hours a day.

Question 5

KAUAI

Answer 5

NAVIGATIONAL WARNING: Electromagnetic radiation will continuously exist within a 2500’ radius and 2500’ above unified S-band antenna located at 22°07’N, 159°40’W near Kokee NASA
Telemetry Station, Kaua’i. Helicopters and slow speed aircraft flying within the above airspace will be exposed to direct radiation which may produce harmful effects to personnel and equipment. Radiation is not visually apparent and must be presumed by all pilots to continuously exist.

NAVIGATIONAL WARNING: Electromagnetic radiation will continuously exist within a 4200’ radius and 4000’ above an S-band radar located at 22°08’N, 159°44’W at Makaha Ridge, Kaua’i. Aircraft flying within the above/airspace will be exposed to direct radiation, which may produce harmful
effects to personnel and equipment. Radiation is not visually apparent and must be presumed by all pilots to continuously exist.

NAVIGATIONAL WARNING: Electromagnetic radiation will continuously exist within a 6500’ radius and from the surface to 6500’ above S-band radar located at 22°03’01”N, 159°46’59”W at the Pacific
Missile Range Facility, Kaua’i. Aircraft flying within the above airspace will be exposed to direct radiation, which may produce harmful effects to personnel and equipment. Radiation is not visually apparent and must
be presumed by all pilots to continuously exist.

NAVIGATIONAL WARNING: Electromagnetic radiation will continuously exist within a 4600’ radius and from the surface to 4600’ above S-band radar located at 22°00’16”N, 159°46’01”W; and with an
8000’ radius and 8000’ above X-band antenna located at 21°59’30”N, 159°45’35”W at the Pacific Missile Range Facility, Kaua’i. Aircraft flying within the above airspace will be exposed to direct radiation which may produce harmful effects to personnel and equipment. Radiation is not visually apparent and must be presumed by all pilots to continuously exist.