Performance requirements: General.

CFR · 2024-01-01 · US · Title 14

(a) The ISMLS consists of the following basic components: (1) C-Band (5000 MHz-5030 MHz) localizer equipment, associated monitor system, and remote indicator equipment; (2) C-Band (5220 MHz-5250 MHz) glide path equipment, associated monitor system, and remote indicator equipment; (3) VHF marker beacons (75 MHz), associated monitor systems, and remote indicator equipment. (4) An ISMLS airborne receiver or a VHF/UHF ILS receiver modified to be capable of receiving the ISMLS signals. This modification requires the addition of a C-Band antenna, a converter unit, a microwave/ILS mode control, and a VHF/UHF receiver modification kit. (b) The electronic ground equipments in paragraph (a)(1), (2), and (3) of this section, must be designed to operate on a nominal 120/240 volt, 60 Hz, 3-wire single phase AC power source. (c) ISMLS ground equipment must meet the following service conditions: (1) AC line parameters, DC voltage, elevation, and duty: (2) Ambient conditions for localizer and glide path equipment: (3) Ambient conditions for marker beacon facilities and all other equipment installed outdoors (for example, antennae, field detectors, and shelters): (4) All equipment installed outdoors must operate satisfactorily under the following conditions: (d) The ISMLS must perform in accordance with the following standards and practices for Facility Performance Category I operation: (1) The ISMLS must be constructed and adjusted so that, at a specified distance from the threshold, similar

official document · source cfr-2024 · id 14:§ 171.259