Communications and Radar Services Flashcards

Automatic Terminal Information Service (ATIS) is the continuous broadcast of recorded information concerning

Answer: noncontrol information in selected high-activity terminal areas.

Automatic Terminal Information Service (ATIS) is a continuous broadcast of recorded noncontrol information for specific airports, primarily in high-activity terminal areas. It provides essential data like weather, active runways, approaches in use, and NOTAMs. This service reduces frequency congestion by allowing pilots to obtain routine information without directly contacting air traffic control.

An ATC radar facility issues the following advisory to a pilot flying on a heading of 090°: "TRAFFIC 3 O'CLOCK, 2 MILES, WESTBOUND..." Where should the pilot look for this traffic?

Answer: South.

ATC traffic advisories use the 12-hour clock system, where 12 o'clock is directly ahead of the aircraft. If a pilot is flying on a heading of 090° (East), 3 o'clock would be directly to their right. This relative direction corresponds to South, indicating where the pilot should look for the traffic.

An ATC radar facility issues the following advisory to a pilot flying on a heading of 360°: "TRAFFIC 10 O'CLOCK, 2 MILES, SOUTHBOUND..." Where should the pilot look for this traffic?

Answer: Northwest.

ATC traffic advisories use the 12-hour clock system, where 12 o'clock is directly ahead of the aircraft. For a pilot flying on a heading of 360° (North), 10 o'clock would be to their left-front. This relative direction corresponds to Northwest, indicating where the pilot should look for the traffic.

An ATC radar facility issues the following advisory to a pilot during a local flight: "TRAFFIC 2 O'CLOCK, 5 MILES, NORTHBOUND..." Where should the pilot look for this traffic?

Answer: Between directly ahead and 90° to the right.

ATC traffic advisories use the 12-hour clock system, with 12 o'clock representing directly ahead of the aircraft. Therefore, 2 o'clock is a position slightly to the right of straight ahead. This falls within the quadrant defined as between directly ahead (12 o'clock) and 90° to the right (3 o'clock).

An ATC radar facility issues the following advisory to a pilot flying north in a calm wind: "TRAFFIC 9 O'CLOCK, 2 MILES, SOUTHBOUND..." Where should the pilot look for this traffic?

Answer: West.

ATC traffic advisories use the 12-hour clock system, where 12 o'clock is directly ahead of the aircraft. If a pilot is flying north, 9 o'clock is directly to their left. This relative direction corresponds to West, indicating where the pilot should look for the traffic.

Basic radar service in the terminal radar program is best described as

Answer: safety alerts, traffic advisories, and limited vectoring to VFR aircraft.

Basic radar service in the terminal radar program, often provided in Terminal Radar Service Areas (TRSAs) or Class C/B airspace, offers VFR aircraft safety alerts, traffic advisories, and limited vectoring for sequencing. While it does not provide IFR separation, it significantly enhances situational awareness and safety for participating VFR aircraft by informing them of other traffic in the area.

From whom should a departing VFR aircraft request radar traffic information during ground operations?

Answer: Ground control, on initial contact.

When a departing VFR aircraft desires radar traffic information, the request should be made to Ground Control on initial contact. Ground Control is responsible for aircraft movement on the airport surface and can coordinate with the appropriate radar facility. This ensures the request is handled efficiently and radar services can be initiated as the aircraft prepares for departure.

TRSA Service in the terminal radar program provides

Answer: sequencing and separation for participating VFR aircraft.

Terminal Radar Service Areas (TRSAs) provide sequencing and separation services for participating VFR aircraft, in addition to IFR aircraft. While VFR participation is not mandatory, it enhances safety by allowing ATC to provide traffic advisories and vectoring. This helps maintain safe distances between aircraft within the TRSA, improving overall air traffic flow and collision avoidance.

When making routine transponder code changes, pilots should avoid inadvertent selection of which codes?

Answer: 7500, 7600, 7700.

Pilots must avoid inadvertently selecting transponder codes 7500, 7600, and 7700 during routine operations. These codes are reserved for specific emergency situations: 7500 for a hijack, 7600 for radio failure, and 7700 for a general emergency. Activating these codes triggers an immediate emergency alert at ATC, causing unnecessary alarm and diverting critical resources.

When operating under VFR below 18,000 feet MSL, unless otherwise authorized, what transponder code should be selected?

Answer: 1200.

Transponder code 1200 is the standard VFR squawk code. Unless specifically assigned a different code by Air Traffic Control, VFR aircraft operating below 18,000 feet MSL should select 1200. This code indicates their VFR status to radar facilities, allowing ATC to identify and track VFR traffic on their screens.

If Air Traffic Control advises that radar service is terminated when the pilot is departing Class C airspace, the transponder should be set to code

Answer: 1200.

Upon termination of radar service, especially when departing controlled airspace like Class C, VFR pilots should revert to the standard VFR transponder code. This code is 1200, which indicates to ATC that the aircraft is operating under Visual Flight Rules and is no longer receiving specific radar services. This ensures proper identification as VFR traffic.

As standard operating practice, all inbound traffic to an airport without a control tower should continuously monitor the appropriate facility from a distance of

Answer: 10 miles.

The Aeronautical Information Manual (AIM) recommends that pilots operating to or from an airport without an operating control tower continuously monitor and broadcast on the appropriate Common Traffic Advisory Frequency (CTAF). This standard operating practice should begin from a distance of 10 miles from the airport. This ensures all traffic in the vicinity is aware of each other's positions and intentions, promoting safety in the traffic pattern.

When an air traffic controller issues radar traffic information in relation to the 12-hour clock, the reference the controller uses is the aircraft’s

Answer: ground track.

Air Traffic Control issues traffic advisories relative to the aircraft's ground track, not its magnetic heading or true course. The ground track represents the actual path of the aircraft over the ground, which is what ATC observes on radar. This ensures the traffic advisory accurately reflects the relative position of other aircraft from the pilot's perspective, accounting for any wind drift.

Absence of the sky condition and visibility on an ATIS broadcast indicates that

Answer: the ceiling is at least 5,000 feet and visibility is 5 miles or more.

According to FAA regulations, if the sky condition and visibility are not explicitly stated on an ATIS broadcast, it implies that the weather is above certain VFR minimums. Specifically, it means the ceiling is at least 5,000 feet AGL and the visibility is 5 statute miles or greater. This convention helps to keep ATIS broadcasts concise when conditions are good.

If a control tower and an FSS are located on the same airport, which function is provided by the FSS during those periods when the tower is closed?

Answer: Airport Advisory Service.

When an airport control tower closes, if a Flight Service Station (FSS) is located on the same field, it will typically provide Airport Advisory Service. This service includes local airport traffic information, wind, altimeter setting, and other pertinent data to assist pilots operating at the non-towered airport. The FSS acts as a communication hub for pilots in the absence of tower control.

When operating under VFR below 18,000 feet MSL, unless otherwise authorized, what transponder code should be selected?

Answer: Mode 3/A code 1200.

Transponder code 1200 is the standard VFR squawk code for aircraft operating below 18,000 feet MSL, unless ATC assigns a different code. 'Mode 3/A' refers to the specific transponder mode that transmits the four-digit code. This code allows ATC radar to identify the aircraft as VFR traffic, ensuring proper tracking and communication.

When making routine transponder code changes, pilots should avoid inadvertent selection of which code?

Answer: 7400.

Transponder code 7400 is reserved for specific purposes, often related to military intercept exercises or other special operations. Inadvertently selecting this code could trigger an unnecessary response from air traffic control or other agencies. Pilots should be careful to avoid this and other special codes during routine operations to prevent confusion.

When making routine transponder code changes, pilots should avoid inadvertent selection of which code?

Answer: 7500.

Transponder code 7500 is universally recognized as the 'hijack' code. Selecting this code inadvertently would immediately alert air traffic control and security agencies to a potential aircraft hijacking, triggering a full emergency response. Pilots must exercise extreme caution to avoid selecting 7500 during routine transponder operations to prevent false alarms and unnecessary interventions.

While on a VFR cross country and not in contact with ATC, what frequency would you use in the event of an emergency?

Answer: 121.5 MHz.

121.5 MHz is the international aeronautical emergency frequency, monitored by all aircraft and air traffic control facilities. It is the primary channel for declaring an emergency when not already in contact with ATC. Using 121.5 MHz ensures the widest possible reception of your distress call, facilitating rapid assistance.

In what controlled airspace are you not required to contact ATC when flying in VMC?

Answer: TRSA.

A Terminal Radar Service Area (TRSA) provides radar services to VFR aircraft, but participation is voluntary. While it is highly recommended to contact ATC for these services for enhanced safety, it is not a regulatory requirement when operating under VFR in Visual Meteorological Conditions (VMC). In contrast, entry into Class C and Class D airspace requires establishing two-way radio communication with ATC.