Learning About HF Digital Mode Comms

Power Point file for Zoom call presentation on FLAMP – DEC 30, 2024 by Richard KD8NOA

Zoom call presentation on DEC 23, 2024 by Richard, KD8NOA – Enter Passcode *Gj+Wh3j

https://us06web.zoom.us/rec/share/80nnL_9Ys9wyJmhK1YeKhbi07CLvD27IqKIpAtGyJlPF-GWwVNmxFtF4HUUE-A.wcLnsg-beFU2KWSPZoom call presentation on JAN 13, 2025 by Richard KD8NOA. Topic: EzNEC Antenna measurements. Enter Passcode 4=FTz$7o

https://youtu.be/GguEyswhI5M – PGP Signatures Using Kleopatra, a tutorial by Richard, KD8NOA

https://youtu.be/-gZ6bmxgwAk?si=NOF7miIi5ositME_ – No license Digital HF – Laptop or Android – FLDigi, FLMsg, and FLAmp


Signals Operating Instructions (SOI) for HF Digital Net organizations

❏ AmRRON – https://amrron.com/2024/05/21/signals-operating-instructions-soi-version-5-0-released/
AmRRON StatRep Version 5.1 – Effective JAN 01, 2025 Download Link

❏ Black Swan Net (Ohio) – https://www.blackswancomex.org/net/soi

❏ ERIN – https://unchainedpreppers.com/forum/radio/ Updated monthly.

❏ GhostNet – https://github.com/s2underground/GhostNet

❏ PrepperNet – https://www.preppernet.net/posts/communications-academy-soi-signals-operating-instructions Need to be signed in to access this link, but creating an account is free.

❏ SEEN – https://www.senetwork.us/downloads

 


Quick Reference Guides

JS8Call Quick Reference, Version 1.2 – Formatted to use as a half-sheet. Works well when laminated. Stephen, KN4AM

JS8Spotter Quick Reference, Version 1.0 – Formatted to use as a half-sheet. Works well when laminated. Stephen, KN4AM

 


Digital Bands with Net Frequencies

These are the digital frequencies permitted with a General Class or higher license, followed by known Net and Calling frequencies within those bands.

  • 20 Meters: 14.025 – 14.150
    • 14..072 – Calling Freq.
    • 14.078 – Calling Freq.
    • 14.107
    • 14.110
    • 14.115
  • 40 Meters: 7.025 – 7.125
    • 7.042 – Calling Freq.
    • 7.078 – Calling Freq.
    • 7.090
    • 7.107
    • 7.110
    • 7.115
  • 80 Meters: 3.525 – 3.600
    • 3.578 – Calling Freq.
    • 3.585
    • 3.582 – Calling Freq.
    • 3.588
    • 3.595

Low Digital Net Usage Bands

  • 15 Meters: 21.025 – 21.200
  • 17 Meters: 18.068 – 18.110
  • 30 Meters: 10.100 – 10.150
  • 60 Meters: Channelized with restrictions
    • 5.332
    • 5.328
    • 5.358.5
    • 5.373
    • 5.405

 

Known Net and Calling frequencies for digital modes other than JS8, Contestia 4/250, or MFSK32
Source – https://www.qsl.net/sv1grb/psk31.htm

  • 20 Meters: 14.025 – 14.150
    • 14.070 – PSK
    • 14.083 – RTTY
    • 14.230 – SSTV
  • 40 Meters: 7.025 – 7.125
    • 7.040 -PSK
    • 7.043 – RTTY
  • 80 Meters: 3.525 – 3.600
    • 3.580 – PSK
    • 3.590 – RTTY
    • 3.735 – SSTV

 


Propagation


 


Website Links for Nets, Organizations, and Software

❏ AmRRON – https://amrron.com/

❏ Black Swan Net (Ohio) – https://www.blackswancomex.org/

❏ ERIN – https://unchainedpreppers.com/forum/radio/

❏ GhostNet – https://github.com/s2underground/GhostNet/

❏ GhostNet Videos – https://www.youtube.com/playlist?list=PL93ufUXbUR1rXnjw6QxueJXfVWxJSxkaX

❏ MAGNET – https://magnethf.com/

❏ PrepperNet – https://www.preppernet.net/

❏ JS8Spotter and MsgAuth – https://kf7mix.com/

❏ FLDIGI suite – https://www.w1hkj.org/

 


Other Resources

AmRRON Setup Scripts

 


Terms and Abbreviations

SOI – Signals Operating Instructions
PPN – Persistent Presence Net
SitRep – Situation Report
StatRep – Status Report
QST – Transmission addressed to all stations on frequency
QSY – Change frequency
QTH – Location