implement semantic versioning
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M17_spec.pdf
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M17_spec.pdf
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M17_spec.tex
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M17_spec.tex
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@ -102,15 +102,15 @@ draw=black]
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\renewcommand{\vhversionname}{Rev}
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\renewcommand \vhAuthorColWidth{.3\hsize}
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\renewcommand \vhChangeColWidth{1.7\hsize}
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\vhEntry{1.0}{08 Dec 2019}{SP5WWP|N6MTS}{Formal specification repository created.}
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\vhEntry{1.1}{25 Jan 2021}{KC1AWV}{Initial \LaTeX conversion from Sphinx.}
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\vhEntry{1.2}{09 Sep 2024}{N7TAE|SP5WWP}{Removed Definitions and Control Packets sections, rewrote Callsign Encoding appendix using examples in C.}
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\vhEntry{1.3}{17 Oct 2024}{N7TAE|SP5WWP}{Introduced new LSD data type to clarify and correct discussion around LICH, and LSF.}
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\vhEntry{1.4}{01 Jan 2025}{SP5WWP}{Removed the KISS appendix and created a separate KISS specification document.}
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\vhEntry{1.5}{11 Feb 2025}{N7TAE|VK7XT}{Rearranged the Data Link and Application Layer chapters for better flow, removed IP Network chapter and File Type appendix, added more details to Packet Mode, 3 new IP packets defined, and added new clarifying bit tables.}
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\vhEntry{1.6}{08 Aug 2025}{SP5WWP}{Section 3.4 was moved to Part II.}
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\vhEntry{2.0}{12 Aug 2025}{N7TAE|N7ADJ|SP5WWP}{GNSS Meta data changed extensively. Values are now metric, and a new param related to HDOP was added.}
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\vhEntry{2.1}{23 Sep 2025}{K6OF}{Copyedit to CCSDS A20.0-Y-4 style and clarify use of UTC.}
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\vhEntry{1.0.0}{08 Dec 2019}{SP5WWP|N6MTS}{Formal specification repository created.}
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\vhEntry{1.1.0}{25 Jan 2021}{KC1AWV}{Initial \LaTeX conversion from Sphinx.}
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\vhEntry{1.2.0}{09 Sep 2024}{N7TAE|SP5WWP}{Removed Definitions and Control Packets sections, rewrote Callsign Encoding appendix using examples in C.}
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\vhEntry{1.3.0}{17 Oct 2024}{N7TAE|SP5WWP}{Introduced new LSD data type to clarify and correct discussion around LICH, and LSF.}
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\vhEntry{1.4.0}{01 Jan 2025}{SP5WWP}{Removed the KISS appendix and created a separate KISS specification document.}
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\vhEntry{1.5.0}{11 Feb 2025}{N7TAE|VK7XT}{Rearranged the Data Link and Application Layer chapters for better flow, removed IP Network chapter and File Type appendix, added more details to Packet Mode, 3 new IP packets defined, and added new clarifying bit tables.}
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\vhEntry{1.6.0}{08 Aug 2025}{SP5WWP}{Section 3.4 was moved to Part II.}
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\vhEntry{2.0.0}{12 Aug 2025}{N7TAE|N7ADJ|SP5WWP}{GNSS Meta data changed extensively. Values are now metric, and a new param related to HDOP was added.}
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\vhEntry{2.0.1}{23 Sep 2025}{K6OF}{Implement CCSDS A20.0-Y-4 style guide and clarify use of UTC.}
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\end{versionhistory}
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\chapter{Licenses}
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@ -285,8 +285,9 @@ A complete transmission shall consist of a Preamble, a Synchronization Burst, Pa
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hlines,
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}
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PREAMBLE & SYNC BURST & PAYLOAD & EoT \\
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40 ms & 16 bits & Multiples of 2 bits (multiples of 1 symbol) & 40 ms \\
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(192 symbols) & (8 symbols) & (variable length) & (192 symbols) \\
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384 bits & 16 bits & multiples of 2 bits & 384 bits \\
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192 symbols & 8 symbols & multiples of 1 symbol & 192 symbols \\
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40 ms & & & 40 ms \\
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\end{tblr}
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\caption{Physical Layer Transmission Structure}
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\end{table}
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@ -379,13 +380,13 @@ There are four frame types each with their own specific Sync Burst: Link Setup F
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\begin{table}[H]
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\centering
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\begin{tblr}{
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colspec={|c|c|c|c|},
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colspec={|c|c|},
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rows={m},
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hlines,
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}
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SYNC BURST & PAYLOAD \\
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16 bits & 368 bits \\
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(8 symbols) & (184 symbols) \\
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8 symbols & 184 symbols \\
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\end{tblr}
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\caption{Frame Structure}
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\end{table}
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