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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
 
* 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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* [http://www.arrl.org/files/file/Regulatory/Band%20Chart/Band%20Chart%20-%2011X17%20Color.pdf US Amateur Radio Bandplan (PDF)] via the ARRL
  
 
==Where Can I Find Information on the Various Modes?==
 
==Where Can I Find Information on the Various Modes?==
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* [http://www.sigidwiki.com/wiki/DominoEX DominoEX]
 
* [http://www.sigidwiki.com/wiki/DominoEX DominoEX]
  
* [http://qrznow.com/new-digital-mode-from-k1jt-ft8/ FT8]
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* [https://rsgb.org/main/blog/front-page-news/2019/04/26/new-digital-mode-announced/ FT4]
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* [https://www.essexham.co.uk/ft8-basics-explained FT8]
 
   
 
   
 
* [http://www.sigidwiki.com/wiki/Hellschreiber Hellschreiber]  
 
* [http://www.sigidwiki.com/wiki/Hellschreiber Hellschreiber]  
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* [http://www.sigidwiki.com/wiki/PACTOR_III PACTOR III]  
 
* [http://www.sigidwiki.com/wiki/PACTOR_III PACTOR III]  
 
   
 
   
* [http://www.sigidwiki.com/wiki/PACTOR_IV PACTOR-IV]
 
 
 
* [http://ac4m.us/pax.html PAX / PAX2]
 
* [http://ac4m.us/pax.html PAX / PAX2]
  
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* [[Robust Packet Radio Examples]]
 
* [[Robust Packet Radio Examples]]
 
* [[WinMOR Waterfall]]
 
* [[WinMOR Waterfall]]
 
  
 
==How Do I Connect My Transceiver and PC?==
 
==How Do I Connect My Transceiver and PC?==
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See the [[HF Hardware Decoders]] page for examples of each.
 
See the [[HF Hardware Decoders]] page for examples of each.
  
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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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 [https://www.w0btu.com/wm2u/interface.html website] that show the wiring diagrams for many different transceivers. In addition, there are numerous mailing lists devoted to particular model(s) of transceivers, and is a likely alternative for finding this information if that website doesn't have it.
  
 
==What Software Can I Use?==
 
==What Software Can I Use?==
 
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.
 
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.airlinkexpress.org/index.html AirLink Express]
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* [http://www.dxatlas.com/CwSkimmer/ CW Skimmer]
 
* [http://www.dxatlas.com/CwSkimmer/ CW Skimmer]
  
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* [http://www.qsl.net/hamscope/ HamScope]
 
* [http://www.qsl.net/hamscope/ HamScope]
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* [http://antoninoporcino.xoom.it/Hell/index.htm IZ8BLY Hellschreiber]
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* [http://antoninoporcino.xoom.it/Chip64/index.htm IZ8BLY Chip64]
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* [http://antoninoporcino.xoom.it/MT63/index.htm IZ8BLY MT63]
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* [http://antoninoporcino.xoom.it/Stream/index.htm IZ8BLY Stream]
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* [http://js8call.com/ JS8Call]
  
 
* [http://nw7us.us/jt65a.html JT65-HF]
 
* [http://nw7us.us/jt65a.html JT65-HF]
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* [http://mixw.net/ MixW]
 
* [http://mixw.net/ MixW]
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* [http://www.paxon.de/ Paxon]
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* [https://www.qsl.net/kh6ty/psk63/ QuikPSK]
  
 
* [http://rosmodem.wordpress.com/ ROS]
 
* [http://rosmodem.wordpress.com/ ROS]
  
 
* [http://www.dxsoft.com/en/products/truetty/ TrueTTY]
 
* [http://www.dxsoft.com/en/products/truetty/ TrueTTY]
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* [http://f5vag.nerim.net/g4ide/uiview_org/winpack/index.html WinPack]
  
 
* [http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3749 WinWarbler]
 
* [http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3749 WinWarbler]
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* [http://www.wolphi.com/ Wolphi Amateur Radio Apps]  Android applications
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* [https://www.qsl.net/zs5wo/wopsk.htm WoPSK]
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* [http://www.dh3ww.de/wpp/index.htm WPP]  in German
  
 
* [http://physics.princeton.edu/pulsar/k1jt/wsjtx.html WSJT-X]
 
* [http://physics.princeton.edu/pulsar/k1jt/wsjtx.html WSJT-X]
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==Where Can I Find Additional Resources?==
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==Where Can I Find Additional Resources?==  
 
; References
 
; References
 
* [http://www.arrl.org/shop/Digital-Communications/ ARRL Store]
 
* [http://www.arrl.org/shop/Digital-Communications/ ARRL Store]
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;Mailing Lists and Forums
 
;Mailing Lists and Forums
* [https://groups.yahoo.com/neo/groups/digitalradio/info Digital Radio]
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* [https://groups.io/g/DXLab DXLab software]
* [https://groups.yahoo.com/neo/groups/dxsoft/info DXSoft Software]
 
 
* [https://groups.io/g/winfldigi FLDigi]
 
* [https://groups.io/g/winfldigi FLDigi]
* [http://forums.hrdsoftwarellc.com/ Ham Radio Deluxe support forums]
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* [https://support.hamradiodeluxe.com/support/discussions Ham Radio Deluxe support forums]
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* [https://www.facebook.com/HamRadioDeluxe/ Ham Radio Deluxe Facebook page]
 
* [https://groups.io/g/hflink  HFLink (ALE)]
 
* [https://groups.io/g/hflink  HFLink (ALE)]
* [https://groups.yahoo.com/neo/groups/mixw/info MixW]
 
 
* [https://groups.io/g/multipsk MultiPSK]
 
* [https://groups.io/g/multipsk MultiPSK]
* [http://groups.yahoo.com/group/MM-SSTV MM-SSTV Yahoo group]
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[[Category:HF in Amateur Radio]]
 
[[Category:HF in Amateur Radio]]
 
[[Category:HF Modes]]
 
[[Category:HF Modes]]

Revision as of 14:23, 18 October 2020

Amateur Radio Digital Operations

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)


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.


This topic is discussed in the Amateur Radio Data Transmissions forum.

General Information

  • Digital amateur signals are restricted to certain portions of the bands. Here is a general list of bands which shows the sections restricted to CW (Morse Code) and digital

Where Can I Find Information on the Various Modes?

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. Many of these links are courtesy of the Signal Identification Guide wiki



Digital Services (email, etc.)


Digital Voice


Waterfall Samples

How Do I Connect My Transceiver and PC?

There are still some folks that connect their transceivers to a Terminal Node Controller or TNC such as the 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.

Far and away the more popular way to go is via the soundcard. There are several models such as the 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.

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.

See the HF Hardware Decoders page for examples of each.

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 website that show the wiring diagrams for many different transceivers. In addition, there are numerous mailing lists devoted to particular model(s) of transceivers, and is a likely alternative for finding this information if that website doesn't have it.

What Software Can I Use?

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.


Audio Samples


Listings for Tigertronics Modems


Slow Scan TV (SSTV) Applications

Testing Receiving Data on Your New Setup

The single best way to test receiving data would be to have a station with a known schedule. W1AW has such a schedule - the website for the schedule is here


Where Can I Find Additional Resources?

References


Mailing Lists and Forums