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| − | ==Amateur Radio Digital Operations==
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| − | Ham radio on HF is not only about voice and CW (Morse Code) - there's a considerable amount of digital transmissions too. There are even digital mailboxes as well as experiments using Digital Radio Mondiale (DRM)
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| − | This page is an introduction to this topic - please feel free to add or correct anything found here. It's not intended to be comprehensive, but does touch on all the topics you will need to consider before getting involved in this side of the hobby.
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| − | ==General Information==
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| − | * [http://www.arrl.org/part-97-amateur-radio Part 97 Rules]
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| − | * Digital amateur signals are restricted to certain portions of the bands. [http://www.arrl.org/FandES/field/regulations/allocate.html Here] is a general list of bands which shows the sections restricted to CW (Morse Code) and digital
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| − | ==Where Can I Find Information on the Various Modes?==
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| − | This listing is not complete, but it gives a good representation of the various modes you will find on the HF Amateur bands. Please feel free to substitute links, and add modes that are not listed here.
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| − | * Airmail - [http://siriuscyber.net/airmail/ Airmail website]
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| − | * [[ALE]] - [http://www.hflink.com HFLink]
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| − | * ALE400 - [http://www.southgatearc.org/news/october2007/narrowband_ale_mode.htm ALE400 – Narrow band ALE mode now available]
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| − | * Clover - [http://www.arrl.org/clover Clover (via ARRL)]
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| − | * Contestia - [http://www.oliviamode.com/Contestia.htm Contestia Digital Mode]
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| − | * Domino - [http://www.arrl.org/domino DominoEX (via ARRL)]
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| − | * Feld-Hell (Hellschreiber) - [http://antoninoporcino.xoom.it/Hell/ Hellschreiber by IZ8BLY]
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| − | * JT-65 - [http://jt65-hf.com/ JT65-HF.Com]
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| − | * JT-6M - [http://www.jt6m.org/home.php JT6M.Org]
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| − | * MT-63 - [http://www.w0btu.com/wm2u/mt63.html MT63 Page]
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| − | * Olivia - [http://www.oliviamode.com/ Olivia - the Magical Mode]
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| − | * PACTOR I - [http://www.arrl.org/pactor PACTOR-I (via ARRL)]
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| − | * PACTOR II - [http://www.arrl.org/pactor-ii PACTOR-II (via ARRL)]
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| − | * PACTOR III - [http://www.arrl.org/pactor-iii PACTOR-III (via ARRL)]
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| − | * PACTOR 4 - [http://www.p4dragon.com/en/PACTOR-4.html SCS PACTOR 4 page]
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| − | * PSK31 - [http://bpsk31.com/ BPSK.Com]
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| − | * PSK63 - [http://www.qsl.net/kh6ty/psk63/ PSK63-A Super Fast Mode for Contesting]
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| − | * PSK125 - [http://f1ult.free.fr/DIGIMODES/MULTIPSK/PSK125_en.html BPSK125 et QPSK125] translated to English
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| − | * THROB - [http://ac4m.us/throb.html AC4M Digital Site - Throb]
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| − | * WinDRM - [http://n1su.com/windrm/ WinDRM website]
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| − | * Winlink - [http://www.winlink.org/ Winlink website]
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| − | ==How Do I Connect My Transceiver and PC?==
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| − | There are still some folks that connect their transceivers to a Terminal Node Controller or TNC such as the [http://www.kantronics.com/products/kamxl.html Kantronics KAM-XL]). There are several advantages - transmit keying, isolation and audio are all handled in a single box. Unfortunately sometimes these TNCs are a bit limited in the modes they cover. Without firmware updates, you are limited to the modes the TNC covers.
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| − | Far and away the more popular way to go is via the soundcard. There are several models such as the [http://www.tigertronics.com/sl+main.htm Tigertronics SignaLink]. These devices remove the restriction of only working on some modes - there's usually a wide variety of software vailable, and in this case, all the transmit keying and audio is also in a single box.
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| − | There are other soundcard devices that simply feed audio back and forth from the transceiver, but you would need to build your own keying circuit for your transceiver. Fortunately there are many such schematics on the web.
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| − | See the [http://www.chace-ortiz.org/umc/hardware.html Utility Monitoring Central Hardware] page for examples of each.
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| − | The next challenge is to determine how to wire the microphone or other jack from your transceiver to the PC or TNC. This varies from model to model, and can be difficult to determine without a manual. Fortunately there is a [http://www.qsl.net/wm2u/interface.html website] that show the wiring diagrams for many different transceivers. In addition, there are numerous Yahoo groups devoted to particular model(s) of transceivers, and is a likely alternative for finding this information if that website doesn't have it.
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| − | ==What Software Can I Use?==
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| − | This list is just a sample of some of the more popular (and some lesser-known) packages that can copy some or all of these modes. Additions are solicited. There are also several websites with audio (and sonogram) samples of many digital modes to aid in learning what a particular mode sounds and looks like.
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| − | * [http://www.dxlabsuite.com/ DX Lab Suite]
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| − | * [http://www.dxzone.com/dx12538/easyterm-ezt3271.html EasyTerm]
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| − | * [http://www.w1hkj.com/Fldigi.html FLDigi]
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| − | * [http://www.ham-radio-deluxe.com/ Ham Radio Deluxe] (includes DM780)
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| − | * [http://www.qsl.net/hamscope/ HamScope]
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| − | * [http://f6cte.free.fr/index_anglais.htm MultiPSK]
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| − | * [http://mixw.net/ MixW]
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| − | * [http://www.dxsoft.com/en/products/truetty/ TrueTTY]
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| − | * [http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3749 WinWarbler]
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| − | * [http://www.iw5edi.com/ham-radio/?zakanaka,50 Zakanaka]
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| − | ; Audio Samples
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| − | * [http://www.w1hkj.com/FldigiHelp-3.21/Modes/index.htm Digital Modes - Sight and Sound]
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| − | * [http://www.waiohuli.com/DigiModes/digifieldguide.htm A Field Guide to the DM-780 Digimode Traces]
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| − | * [http://www.mixw.net/index.php?j=signals MixW Waterfall Pictures Gallery]
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| − | * [http://f1ult.free.fr/DIGIMODES/MULTIPSK/digimodesF6CTE_en.htm MultiPSK Signal Samples]
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| − | ==Slow Scan TV (SSTV)==
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| − | * What is [http://en.wikipedia.org/wiki/SSTV SSTV] (Slow Scan TV)?
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| − | * [http://www.barberdsp.com/ ChromaPix] by Silicon Pixels
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| − | * [http://www.pervisell.com/download/roote.htm JVComm32]
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| − | * [http://mixw.net/ MixW]
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| − | * [http://hamsoft.ca/pages/mmsstv.php MM-SSTV]
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| − | * [http://www.blackcatsystems.com/software/multimode.html MultiMode] for Macs
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| − | * [http://users.telenet.be/on4qz/ QSSTV (Linux)]
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| − | * [http://www.computer-int.com/rc.htm RadioCom]
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| − | * [http://www.barberdsp.com/w95sstv/w95dload.htm W95SSTV]
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| − | ==Where Can I Find Additional Resources?==
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| − | ; References
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| − | * [http://www.arrl.org/shop/Digital-Communications/ ARRL Store]
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| − | ;Mailing Lists
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| − | * [https://groups.yahoo.com/neo/groups/digitalradio/info Digital Radio]
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| − | * [https://groups.yahoo.com/neo/groups/dxsoft/info DXSoft Software]
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| − | * [https://groups.yahoo.com/neo/groups/win-fldigi/info FLDigi]
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| − | * [https://groups.yahoo.com/neo/groups/hflink/info HFLink (ALE)]
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| − | * [https://groups.yahoo.com/neo/groups/mixw/info MixW]
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| − | * [https://groups.yahoo.com/neo/groups/multipsk/info MultiPSK]
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| − | * [http://groups.yahoo.com/group/MM-SSTV MM-SSTV Yahoo group]
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