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docs:dstar:net [2021/01/21 14:40] – [Terminal location information update] rootdocs:dstar:net [2021/01/21 17:39] (current) – [Initialization packet] root
Line 282: Line 282:
 ==== Initialization packet ==== ==== Initialization packet ====
  
-Used to initialize when the value of M (magic number) does not match between GW and zone repeater.+ ["INIT"][M ][SR][C (0x00)][L ] 
 +    4B    2B  1B    1B      2B 
 + 
 +Used to synchronize the value of M (magic number) between GW and zone repeater. 
 + 
 + 
 +==== Log update (Zone repeater to Management Gateway) ==== 
 + 
 + ["DSLG"][Log record Nbr][Log sender CS][Log record][...][Log record] 
 +    4B         4B                8B         64B             64B 
 + 
 +===== Inter-zone gateway communication ===== 
 + 
 +==== Digital Data ==== 
 + 
 + ["DSDT"][Packet length][Trunk HDR][Wireless header][Data][FCS] 
 +    4B         2B           7B     -----  Read note below ----- 
 + 
 +DD signals excluding bit synchronization and frame synchronization signals 
 + 
 +If this frame is over 1500 bytes, fragment it. 
 +==== Digital Voice ==== 
 +=== Voice header === 
 + 
 + ["DSVT"][Packet length][Reserved][Trunk HDR][Wireless digital voice frame] 
 +    4B         2B           2B         7B     -----  Read note below ----- 
 + 
 +Excludes bit synchronization and frame synchronization signals Radio header 
 +=== Data header === 
 + 
 + 
 + ["DSVT"][Packet length][Reserved][Trunk HDR][Voice frame][Data frame] 
 +    4B         2B           2B         7B     ---  Read note below --- 
 + 
 +Excludes bit synchronization and frame synchronization signals 
 +=== Flag === 
 + 
 +^ F ^ E ^ D ^ C ^ B ^ A ^ 9 ^ 8 ^ 7 ^ 6 ^ 5 ^ 4 ^ 3 ^ 2 ^ 1 ^ 0 ^ 
 +| Payload type ||| Reserved |||||||||||| Hole |  
 + 
 +^ Value ^ Type ^ 
 +| 0001 | Radio voice packet | 
 +| 0010 | Data packet | 
 + 
 +^ Value ^ Hole ^ 
 +| 0 | Hole punch OFF | 
 +| 1 | Hole punch ON | 
 + 
 +When the hole punch bit of the received DV header (wireless header) packet is set, the source terminal call sign is used. When sending to the source GW IP address, the source UDP port number is used as the remote port. 
 + 
  
docs/dstar/net.1611236425.txt.gz · Last modified: 2021/01/21 14:40 by root

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