Which of the following is an application of APRS?
Providing real-time tactical digital communications in conjunction with a map showing the locations of stations
This answer is correct because APRS is indeed used for providing real-time tactical digital communications along with map-based station tracking, which is a core feature of the system.
Showing automatically the number of packets transmitted via PACTOR during a specific time interval
This is incorrect because PACTOR is a different digital mode focused on reliable data transmission, and it does not relate to APRS’s real-time tracking and mapping capabilities.
Providing voice over internet connection between repeaters
This is incorrect because providing voice over internet connection between repeaters is not a function of APRS; this task is generally handled by systems like EchoLink or IRLP.
Providing information on the number of stations signed into a repeater
This is incorrect because APRS does not provide information about the number of stations signed into a repeater; it focuses on real-time data communications and tracking.
Explanation
APRS, or Automatic Packet Reporting System, is a digital communication protocol designed for real-time tactical communication and tracking using amateur radio. One of the primary functions of APRS is to provide real-time information about the location of stations, weather data, and other relevant tactical information. This system can be incredibly useful during events like public service activities, emergency response situations, or any scenario where the whereabouts and status of team members are critical. APRS works by taking advantage of a packet radio network to transmit small bursts of data, which can then be displayed on a map, allowing operators to see the precise locations and movements of other stations in the network.
The correct answer, ‘Providing real-time tactical digital communications in conjunction with a map showing the locations of stations,’ accurately describes one of the main practical applications of APRS. This not only helps in coordinating efforts during emergencies but also in various amateur radio activities where geolocation data is essential.
In contrast, the other options describe functionalities that are not related to APRS or misrepresent its features. Answer 2 discusses packet counting via PACTOR, which is a different digital mode. Answer 3 and answer 4 deal with functionalities related to voice connections and repeater usage, which are outside the scope of APRS capabilities.
T8D05 2022-2026