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D-Star DD protocol spec

Michael Fox All Messages By This Member #1116 Pardon if this has been asked/answered before.? I looked and couldn't find it. Where can I find an English version of the protocol spec for DD? I'm not talking about how to configure a radio.? I'm talking about how the DD protocol works over the air:? retries, acknowledgements, timeouts, frame sequence numbers, etc. Thanks, Michael N6MEF
Dean Gibson AE7Q #1117 开云体育 There is NO PROTOCOL.? There are no retries, acknowledgements, timeouts, frame sequence numbers, etc.? Zip.? Nada.? Any of that stuff must be done by the equipment connected by the Ethernet cable to the ID-1.? Eg, TCP/IP. Consider the RF connection between two ID-1 radios to be a (noisy, unreliable) wire. -- Dean On 2016-12-16 21:02, n6mef@... [D-STAR_23cm] wrote: toggle quoted message Show quoted text Pardon if this has been asked/answered before.? I looked and couldn't find it. Where can I find an English version of the protocol spec for DD? I'm not talking about how to configure a radio.? I'm talking about how the DD protocol works over the air:? retries, acknowledgements, timeouts, frame sequence numbers, etc. Thanks, Michael N6MEF
Michael Fox All Messages By This Member #1118 开云体育 TCP/IP is network layer and above.? It knows nothing of the underlying medium. ? Something must govern at least MAC (CSMA/CA??) and functionality on the RF side of the radio. ? Michael ? ? ? toggle quoted message Show quoted text From: D-STAR_23cm@... [mailto:D-STAR_23cm@...] Sent: Friday, December 16, 2016 11:19 PM To: D-STAR_23cm@... Subject: Re: [D-STAR_23cm] D-Star DD protocol spec ? ? There is NO PROTOCOL.? There are no retries, acknowledgements, timeouts, frame sequence numbers, etc.? Zip.? Nada.? Any of that stuff must be done by the equipment connected by the Ethernet cable to the ID-1.? Eg, TCP/IP. Consider the RF connection between two ID-1 radios to be a (noisy, unreliable) wire. -- Dean On 2016-12-16 21:02, n6mef@... [D-STAR_23cm] wrote: Pardon if this has been asked/answered before.? I looked and couldn't find it. Where can I find an English version of the protocol spec for DD? I'm not talking about how to configure a radio.? I'm talking about how the DD protocol works over the air:? retries, acknowledgements, timeouts, frame sequence numbers, etc. Thanks, Michael N6MEF ?
Steve, KB9MWR All Messages By This Member #1119 Best info is a documented titled: D-Star Digital Data (DD) Mode Packet Structure by KM4ML
Mark Thompson All Messages By This Member #1120 The file D-Star Digital Data (DD) Mode Packet Structure by KM4ML?is in the High-Speed Digital Data (DD) Folder of the Files section of the group.? ---In D-STAR_23cm@..., <kb9mwr@...> wrote : Best info is a documented titled: D-Star Digital Data (DD) Mode Packet Structure by KM4ML
Dean Gibson AE7Q #1121 开云体育 Nor does the radio.? Every Ethernet packet it sees on the Ethernet connection, is sent out.? ARPs, pings, everything, regardless of MAC address.? "TCP/IP" was an example (hence the "eg").? There is no collision detection.? Everyone I know uses a router/gateway to limit traffic, or the radio will be broadcasting everything on the LAN. I don't believe it stores packets, but I'm not sure on that one. On 2016-12-17 20:20, 'Michael Fox - N6MEF' n6mef@... [D-STAR_23cm] wrote:

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