ARRL 10 GHz Log Analyzer

1 Your log

Upload log files Google Sheets link

Choose log files or drag them here Cabrillo (.log) or CSV (.csv / .txt) · up to 4 files, 1 MB each

No log handy? Try the sample or .

2 Station

Your call sign

Required for CSV and Google Sheets logs. Cabrillo logs use their CALLSIGN: line.

Band category

Operator (single-op) and mode (mixed) are fixed for this contest.

3 What to generate

Cabrillo logReady to submit to ARRL, with claimed score Contest summaryScore by band: QSOs, points, unique calls, best DX Station activity reportEvery station worked, per band, with best DX Weekend analysisDay-by-day hourly, directional and band breakdown Comprehensive analysisFull QSO list with distances and bearings, plus all statistics Directional plots – per contest dayPolar plots of points by compass bearing and band Directional plots – per operating locationOne plot per grid per date – great for rovers Log comparisonSide-by-side comparison of 2–4 uploaded logs

Log formats

Cabrillo (.log) – the standard contest submission format. QSO lines look like QSO: 10G CW 2026-08-15 1005 K2UA EN91KT KB8VAO EN91IS.

CSV (.csv), or a Google Sheet – one row per QSO with the columns date, band, sourcegrid, time, call, grid:

date,band,sourcegrid,time,call,grid
2026-08-15,10 GHz,EN91KT,1005,KB8VAO,EN91IS
,,,1032,W3XYZ,EN90OV
,24 GHz,,1145,K1ROV,EN90UX

Leave date, band, sourcegrid and time blank when they haven’t changed since the previous row – they’re filled down automatically. call and grid must be on every row. Dates may be YYYY-MM-DD or MM/DD/YYYY; times are UTC HHMM.

Scoring

Distance points (km, rounded up, minimum 1) × band multiplier (10 GHz ×1, 24 ×2, 47 ×3, 78 ×4, 122 ×5, 142 ×6, 241+ ×10), plus 100 points per unique call per band.

ARRL 10 GHz and Up Contest Log Analyzer

1 Your log

2 Station

3 What to generate

Couldn’t process that log

Your results

Log formats

Scoring