§87.219. Automatic operations. — Inbound Citations

(b) Unicoms operating in an automated mode must comply with the requirements of paragraphs (1)-(5) of this section, in addition to the requirements applicable to non-automated unicom operations.

(1) An automated unicom must transmit only in response to interrogating signals from aircraft, including but not limited to the brief keyed RF signals specified in § 87.187(y).

(2) An automated unicom must monitor the unicom frequency prior to transmission, and provide a brief delay between the aircraft's interrogating signal and the automatic unicom's response.

(3) Automated advisory transmissions must be as brief as possible, and must never exceed one minute in length.

(4) An automated unicom may not provide weather information at an airport that has an operational, FAA-certified, automatic weather facility, unless the unicom itself is certified by the FAA.

(5) If weather information is provided by an automated unicom:

(i) Weather sensors must be placed in order to adequately represent the weather conditions at the airport(s) to be served;

(ii) The weather information must be proceeded by the word “advisory;”

(iii) The phrase “automated advisory” must be included when the weather information was gathered by real-time sensors or within the last minute; and,

(iv) The time and date of the last update must be included when the weather information was not gathered within the last minute.

(b) Unicoms operating in an automated mode must comply with the requirements of paragraphs (1)-(5) of this section, in addition to the requirements applicable to non-automated unicom operations.

(1) An automated unicom must transmit only in response to interrogating signals from aircraft, including but not limited to the brief keyed RF signals specified in § 87.187(y).

(2) An automated unicom must monitor the unicom frequency prior to transmission, and provide a brief delay between the aircraft's interrogating signal and the automatic unicom's response.

(3) Automated advisory transmissions must be as brief as possible, and must never exceed one minute in length.

(4) An automated unicom may not provide weather information at an airport that has an operational, FAA-certified, automatic weather facility, unless the unicom itself is certified by the FAA.

(5) If weather information is provided by an automated unicom:

(i) Weather sensors must be placed in order to adequately represent the weather conditions at the airport(s) to be served;

(ii) The weather information must be proceeded by the word “advisory;”

(iii) The phrase “automated advisory” must be included when the weather information was gathered by real-time sensors or within the last minute; and,

(iv) The time and date of the last update must be included when the weather information was not gathered within the last minute.

(b) Unicoms operating in an automated mode must comply with the requirements of paragraphs (1)-(5) of this section, in addition to the requirements applicable to non-automated unicom operations.

(1) An automated unicom must transmit only in response to interrogating signals from aircraft, including but not limited to the brief keyed RF signals specified in § 87.187(y).

(2) An automated unicom must monitor the unicom frequency prior to transmission, and provide a brief delay between the aircraft's interrogating signal and the automatic unicom's response.

(3) Automated advisory transmissions must be as brief as possible, and must never exceed one minute in length.

(4) An automated unicom may not provide weather information at an airport that has an operational, FAA-certified, automatic weather facility, unless the unicom itself is certified by the FAA.

(5) If weather information is provided by an automated unicom:

(i) Weather sensors must be placed in order to adequately represent the weather conditions at the airport(s) to be served;

(ii) The weather information must be proceeded by the word “advisory;”

(iii) The phrase “automated advisory” must be included when the weather information was gathered by real-time sensors or within the last minute; and,

(iv) The time and date of the last update must be included when the weather information was not gathered within the last minute.

(b) Unicoms operating in an automated mode must comply with the requirements of paragraphs (1)-(5) of this section, in addition to the requirements applicable to non-automated unicom operations.

(1) An automated unicom must transmit only in response to interrogating signals from aircraft, including but not limited to the brief keyed RF signals specified in § 87.187(y).

(2) An automated unicom must monitor the unicom frequency prior to transmission, and provide a brief delay between the aircraft's interrogating signal and the automatic unicom's response.

(3) Automated advisory transmissions must be as brief as possible, and must never exceed one minute in length.

(4) An automated unicom may not provide weather information at an airport that has an operational, FAA-certified, automatic weather facility, unless the unicom itself is certified by the FAA.

(5) If weather information is provided by an automated unicom:

(i) Weather sensors must be placed in order to adequately represent the weather conditions at the airport(s) to be served;

(ii) The weather information must be proceeded by the word “advisory;”

(iii) The phrase “automated advisory” must be included when the weather information was gathered by real-time sensors or within the last minute; and,

(iv) The time and date of the last update must be included when the weather information was not gathered within the last minute.

(b) Unicoms operating in an automated mode must comply with the requirements of paragraphs (1)-(5) of this section, in addition to the requirements applicable to non-automated unicom operations.

(1) An automated unicom must transmit only in response to interrogating signals from aircraft, including but not limited to the brief keyed RF signals specified in § 87.187(y).

(2) An automated unicom must monitor the unicom frequency prior to transmission, and provide a brief delay between the aircraft's interrogating signal and the automatic unicom's response.

(3) Automated advisory transmissions must be as brief as possible, and must never exceed one minute in length.

(4) An automated unicom may not provide weather information at an airport that has an operational, FAA-certified, automatic weather facility, unless the unicom itself is certified by the FAA.

(5) If weather information is provided by an automated unicom:

(i) Weather sensors must be placed in order to adequately represent the weather conditions at the airport(s) to be served;

(ii) The weather information must be proceeded by the word “advisory;”

(iii) The phrase “automated advisory” must be included when the weather information was gathered by real-time sensors or within the last minute; and,

(iv) The time and date of the last update must be included when the weather information was not gathered within the last minute.