lz2xa.com/planner
Antenna direction planning for HF contests. Upload a Cabrillo log and instantly see the best beam headings per band and per hour — computed from real QSO geography — plus a propagation forecast for your QTH. Runs entirely in your browser; nothing is uploaded.
Free web edition (lite)
- Drop-in Cabrillo log analysis — 100% client-side, private
- Great-circle bearing from your QTH to every worked station
- Interactive compass rose with the top antenna sectors, per UTC hour
- Per-band breakdown (80/40/20/15/10m) and a 24-hour planner scored 0–100
- Propagation forecast (ITU-R P.533 / Proppy) for any QTH — works without a log
- Live PSK Reporter reception reports for your prefix
- Full AD1C country file; pluggable scoring (WRTC 2026, IARU HF, CQ WW, WPX)
Desktop app (Windows 10/11) adds
- VOACAP propagation prediction — the full engine, running locally
- Reverse Beacon Network archives by date — real skimmer data from any past day
- Works 100% offline once the data has been fetched
- Export of the analysis and the 24-hour plan
- Prefix suggestions from your QTH and log-vs-QTH consistency checks
Built for WRTC 2026 preparation, but it works for any HF contest and any location. The web edition is free and needs no installation.
robot.lz2xa.com
A full HAM-radio contest log checker — upload Cabrillo logs, cross-check QSOs between participants, score the contest and publish results.
- Cabrillo log upload and validation
- Automatic QSO cross-checking between participants
- Duplicate detection per band/mode
- Points and multiplier scoring per contest rules
- Category-based rankings (single-op, multi-op, etc.)
- UBN reports (Unique / Bad / Not-in-log) for every participant
- PDF certificates for winners
- Email confirmation flow with one-click verification
- Public results page with operator search
- Multi-language interface (EN / BG)
Currently set up for all Bulgarian (LZ) internal contests. A new contest can be added on request — just send us the rules.
ac.lz2xa.com
Real-time band/mode coordination for groups of activators (awards, special events, ~200 ops). Each band+mode combination is held by only one activator at a time — no overlaps.
- Live band × mode matrix — public, no login required
- Local Windows agent for N1MM Logger+, Log4OM and DXLog
- Automatic QSO capture from the logger over UDP
- Auto-detects current band, mode and frequency from the radio
- Database-enforced single active session per band+mode (no race conditions)
- Auto-release of abandoned sessions via heartbeat timeout
- Operator-to-operator chat
- DX cluster spot tracking for the event's special callsign
- Separate logs per award; export as ADIF, Cabrillo or ZIP
- Multi-language interface (EN / BG), dark/light theme
Designed for award sessions and group operations. Interested in using it for your own event or club? Drop us a line.
lz2xa.com/wrtc
Hour-by-hour replay of the WRTC 2026 race (IARU HF, 11–12 July) — who leads and on which bands, minute by minute, built from all 50 teams' Cabrillo logs.
- Animated replay of the whole 24-hour contest with play and scrub controls
- Three metrics: score, QSOs and multipliers
- Band-activity strip (80/40/20/15/10 m) per team over the last 15 minutes
- Highlight your favourite teams or the Top 5; chart or table view
- Single self-contained page — EN / BG, dark/light theme
Scores are "as logged" during the contest (raw, before log-checking corrections), so they sit slightly above the official checked results.