Question
Which of the following is a way to establish contact with a digital messaging system gateway station?
Answer Options
- A) Send an email to the system control operator
- B) Send QRL in Morse code
- C) Respond when the station broadcasts its SSID
- D) Transmit a connect message on the station’s published frequency
Correct Answer: D
Explanation
A digital messaging system gateway station (such as a Winlink RMS) is set up to receive incoming connection requests from amateur users. The standard procedure for establishing contact is for the user to select the system’s published operating frequency and then transmit a connect message.
This message is a specific handshake sequence that the gateway’s modem protocol (e.g., PACTOR, VARA) is designed to recognize. Once the gateway recognizes the connect message, the two stations begin the ARQ handshake process to establish a reliable, two-way data link.
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