d-star:data
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d-star:data [2018/11/15 19:12] – [Mini header] f4hof | d-star:data [2018/11/15 19:19] (current) – f4hof | ||
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====== Data frames in D-Star ====== | ====== Data frames in D-Star ====== | ||
- | ====== Data Frames in D-Star ====== | ||
===== Mini header ===== | ===== Mini header ===== | ||
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Example of data configuration on the transmitting side / receiving side when transferring user's data communication by simple data communication | Example of data configuration on the transmitting side / receiving side when transferring user's data communication by simple data communication | ||
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+ | <pic> | ||
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+ | ===== Messaging function ===== | ||
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+ | This function is used to send and receive 20-character messages to be displayed on the radio. It is specified as follows. The characters that can be used depending on the radio used. | ||
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+ | <pic> | ||
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+ | ===== Header retransmission ===== | ||
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+ | Header information retransmission | ||
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+ | It is possible to transmit by using a data frame in a state where error correction is not applied to information excluding bit synchronization and frame synchronization in radio section header information. In the case of transmission, | ||
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+ | Note: Since the occupancy rate of the header information is high in the retransmission of the header information, | ||
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+ | ===== Code Squelch ===== | ||
+ | When using the digital code squelch (CSQL) feature, the following two-digit code is transmitted as a data frame. The code data is transmitted at a cycle of 420 ms using the data frame of two frames immediately after the [Sync] frame. | ||
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d-star/data.txt · Last modified: 2018/11/15 19:19 by f4hof