Contest Analyzer · Blog · #Decoding Errors

#Decoding Errors

Decoding errors are mistakes made when a program or an operator converts a received signal into characters. In digital contest modes such as RTTY they arise from noise, fading, tuning problems and lost shift characters, and they appear in the log as wrong, extra or missing characters in callsigns and exchanges. Some errors are easy to spot on the screen, others only after the contest. The articles under this tag explain the typical patterns and the habits that prevent them. Reading what the software captured before sending it back is the single most effective defence.

RTTY Decoding Errors and How They Reach Your LogOct 27, 2026 · 8 min read

RTTY Decoding Errors and How They Reach Your Log

Why RTTY decoders produce wrong callsigns and zones, how a lost shift turns digits into letters, and how to keep decoding errors out of…

Also from LY4A · free

Never miss the DX you are waiting for.

LY4A DX Reminder. Tell it which callsign you are waiting for, on which bands and in which mode. It watches five DX clusters in the background and raises a real alarm the moment that callsign shows up — even while your phone is silenced.

  • Free — no ads, no account
  • DXScape, DXSummit, DXHeat, PSK Reporter, RBN
  • 160 m to 70 cm · CW, SSB, FT8, FT4, RTTY
  • iPhone, Android, Windows and Mac

ly4a.com ↗

Made by the same team

More tools from our team

Built by Internet Solutions. Each one saves you time in a different way.