SkookumLogger v4.7 now available

Bill Myers, K1GQ has released the latest version of the contest logging software SkookumLogger for macOS.

SkookumLogger is a full-featured contest logging program suitable for the most demanding contester. It runs on MacOS, supporting single-mode and and mixed-mode events on 13 bands between 160m and 23cm.  SkookumLogger requires a K1EL WinKeyer or a YCCC SO2R Box to send CW.

Some SkookumLogger Features

  • Any number of QSOs per log
  • Two QSO entry boxes supporting interleaved SO1R, SO2V, SO2R/2BSIQ with one keyboard
  • Duplicate checking as callsigns are entered
  • Exchange Archive (personal call history file) for exchange pre-fill
  • Partial callsign matching against log, Exchange Archive, and Super Check Partials (SCP) database
  • Integrated download of the SCP and cty.dat databases
  • Integrated Cabrillo upload to support SCP
  • Separate activity table windows (like band maps) for each contest band
  • Multiplier checksheets for countries, regions, prefixes, zones, grids, other
  • Time Tracker and Rate Tracker panels
  • Score window with band breakdown and scoring for most contests
  • Bidirectional DX Cluster packet spotting interface, with skimmer and QSX support
  • CW call type-ahead and CW keyboard mode
  • Context-sensitive, queued message sending for CW, SSB (using radio DVR), FSK/PSK (using radio encoder)
  • Magic Message, like ESM with user-defined trigger key
  • Great circle maps with terminator and antenna pattern overlays
  • SkookumNet networking for multi-operator/multi-transmitter configurations
  • Amplifier standby/operate and drive power controls
  • Rotator direction display and control
  • Panadapter display with graphical known-activity overlays and radio frequency control
  • K1EL WinKeyer with KEY1/KEY2 management
  • YCCC SO2R Box+ and YCCC SO2R Mini interfaces, including their WinKeyer emulations
  • YCCC MOAS antenna switch interface
  • XK-24 Keypad interface with red/blue backlights
  • Cabrillo export for submitting log entries
  • ADIF and CSV export for moving contest QSOs to a general-purpose logger
  • Automated log submission via Apple Mail and via web browser
  • Statistics report for post-contest analysis of your contest log
  • CW Practice mode for developing your contest logging skills off the air

Changes in version 4.7 2024-06-12


  • All-new generalized support for panadapters, for radios that provide spectral data streams. This foundation handles two radios, each with up to two receivers, each receiver with a main pan and a mini-pan. Currently tested with Elecraft K4 using its ethernet connection. Previous Panadapter support using video capture still supported.
  • User interface for managing voice keyer phonetics for digits. Thanks JH5GHM.
  • Voice Keyer support for ICOM 7610. Thanks JA1BJI and JH5GHM.


  • KPA1500 power display range is now 0 to 2000 W with 250 W tick marks.
  • When replacing a log’s contest rules, do not change the log’s Start Date.
  • When the SuperCheckPartials or the Countries database doesn’t exist in the support folder or the database is older than the database included inside SkookumLogger, copy the included database to the support folder. Each release of SkookumLogger contains the latest versions of those databases at the release data.
  • Magic Message V2 Run logic resends the call and exchange if the call has changed after the call and exchange were already sent and the call field has keyboard focus. Thanks W6FB.
  • The message-n token now handles n between 0 and 16 (was limited to 0 to 9).
  • The default titles and content for the three query messages, Call?, Again? and Number?, are now consistent for CW and voice messages.
  • The Magic Message Protocol Version chooser is now a popup menu.
  • When processing spots received from DXCluster, discard spots containing “Beacon” in the info field.


  • Attempting to set an unset Rover checkbox in the Log table by clicking on it immediately changed it back to unset.
  • CTWES was missing in the NEQP Counties list.
  • A rare crash was caused by divide-by-zero when processing K4 stream data.
  • Delaware QSO Party Outside was missing in the list of QSO parties with compatible exchanges.
  • Kentucky QSO Party Inside was marking QSOs with other KY stations as Suspect. Thanks WE5P.

The latest version of SkookumLogger is available free of charge for download here or visit the App Store.