| Revision as of 12:22, 30 January 2022 editOnel5969 (talk | contribs)Autopatrolled, Extended confirmed users, Page movers, New page reviewers, Pending changes reviewers, Rollbackers937,817 edits Restored revision 1043859516 by WurmWoode (talk): Rev as per wp:splitTags: Twinkle New redirect Undo← Previous edit | Revision as of 03:08, 17 August 2022 edit undoDr vulpes (talk | contribs)Administrators36,962 edits recreating FT8 articleTags: Removed redirect Visual edit Disambiguation links addedNext edit → | ||
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| FT8 or Franke & Taylor 8 is a ] digital mode which was released on June 29, 2017 by the creators Joe Taylor, K1JT and Steve Franke, K9AN.<ref name=":0">Burmester, Dale March 12, 2019. Amateur Radio Digital Communications Mode FT8. http://site.ieee.org/msn/files/2019/04/FT8-KA9SWE.pdf</ref> FT8 is a popular form of digital weak signal communication used primarily by amateur radio operators to communicated on ] with a majority of traffic occuring on the ] amateur bands.<ref>{{Cite web |last=Luscre |first=Anthony |date=2019-10-11 |title=FT8—What Is It and How Can I Get Started? |url=https://www.onallbands.com/ft8-what-is-it-and-how-can-i-get-started/ |access-date=2022-08-17 |website=OnAllBands |language=en-US}}</ref> The mode offers operators the ability to communicate in unfavorable environments such as during low ], high RF noises, or during l].<ref>{{Cite web |title=FT8 - Signal Identification Wiki |url=https://www.sigidwiki.com/FT8 |access-date=2022-08-17 |website=www.sigidwiki.com}}</ref> With advances in signal processing technology FT8 is able to decode signals down to -20db which is significantly lower than ] or ] transmissions.<ref>{{Cite web |title=FT8 Mode is Latest Bright Shiny Object in Amateur Radio Digital World |url=http://www.arrl.org/news/ft8-mode-is-latest-bright-shiny-object-in-amateur-radio-digital-world |access-date=2022-08-17 |website=www.arrl.org |language=en}}</ref> The mode works by sending signals in 15 second blocks with 12.64 seconds of transmission time and 2.36 seconds of decode time, this gives the mode 5 words per minutes effective transmission.<ref name=":0" /> The mode requires each computer ot be synced up in time with each other with most users making use of either ] or ] to ensure transmissions fall in the proper window. This allows FT8 transmission to support up to 13 characters, the mode uses ] to ensure proper transmission and decoding. As the mode is quite limited in the number of words that it can send it only sends enough information to ensure a contact with each station. There are multiple uses for FT8 including contesting<ref>{{Cite web |title=FT8/FT4 from a contester’s perspective – VA7ST.ca |url=https://va7st.ca/2020/10/ft8-ft4-from-a-contesters-perspective/ |access-date=2022-08-17 |language=en-US}}</ref><ref>{{Cite web |title=ARRL Surveying Field Day Participants |url=http://www.arrl.org/news/arrl-surveying-field-day-participants |access-date=2022-08-17 |website=www.arrl.org |language=en}}</ref>, testing antennas,<ref>{{Cite web |title=FT8 |url=https://www.rtl-sdr.com/tag/ft8/ |access-date=2022-08-17 |website=www.rtl-sdr.com}}</ref> and for scientific research<ref>{{Cite web |last=Erickson |first=P. |last2=Liles |first2=W. |last3=Miller |first3=E. |last4=Miller |first4=E. |date=2020 |title=Amateur digital mode based remote sensing: FT8 use as a radar signal of opportunity for ionospheric characterization |url=https://hamsci.org/publications/amateur-digital-mode-based-remote-sensing-ft8-use-radar-signal-opportunity-ionospheric |access-date=2022-08-17 |website=hamsci.org}}</ref>. | |||
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Revision as of 03:08, 17 August 2022
FT8 or Franke & Taylor 8 is a frequency shift keying digital mode which was released on June 29, 2017 by the creators Joe Taylor, K1JT and Steve Franke, K9AN. FT8 is a popular form of digital weak signal communication used primarily by amateur radio operators to communicated on amateur radio bands with a majority of traffic occuring on the HF amateur bands. The mode offers operators the ability to communicate in unfavorable environments such as during low sun sport cycles, high RF noises, or during low power operations. With advances in signal processing technology FT8 is able to decode signals down to -20db which is significantly lower than CW or SSB transmissions. The mode works by sending signals in 15 second blocks with 12.64 seconds of transmission time and 2.36 seconds of decode time, this gives the mode 5 words per minutes effective transmission. The mode requires each computer ot be synced up in time with each other with most users making use of either NTP or GPS to ensure transmissions fall in the proper window. This allows FT8 transmission to support up to 13 characters, the mode uses forward error correction to ensure proper transmission and decoding. As the mode is quite limited in the number of words that it can send it only sends enough information to ensure a contact with each station. There are multiple uses for FT8 including contesting, testing antennas, and for scientific research.
References
- ^ Burmester, Dale March 12, 2019. Amateur Radio Digital Communications Mode FT8. http://site.ieee.org/msn/files/2019/04/FT8-KA9SWE.pdf
- Luscre, Anthony (2019-10-11). "FT8—What Is It and How Can I Get Started?". OnAllBands. Retrieved 2022-08-17.
- "FT8 - Signal Identification Wiki". www.sigidwiki.com. Retrieved 2022-08-17.
- "FT8 Mode is Latest Bright Shiny Object in Amateur Radio Digital World". www.arrl.org. Retrieved 2022-08-17.
- "FT8/FT4 from a contester's perspective – VA7ST.ca". Retrieved 2022-08-17.
- "ARRL Surveying Field Day Participants". www.arrl.org. Retrieved 2022-08-17.
- "FT8". www.rtl-sdr.com. Retrieved 2022-08-17.
- Erickson, P.; Liles, W.; Miller, E.; Miller, E. (2020). "Amateur digital mode based remote sensing: FT8 use as a radar signal of opportunity for ionospheric characterization". hamsci.org. Retrieved 2022-08-17.