OH6BG
@voacap
VOACAP (Voice of America Coverage Analysis Program) is free professional HF Propagation Prediction and Ionospheric Communications Analysis software.
VOACAP Online just added simple, one‑page planning views that make HF planning faster and more intuitive. Visit www.voacap.com/hf/ and choose Planner from the Point‑to‑Point menu. Suitable for contest & DXpedition strategy planning, or just for regular operating.
VOACAP Online now supports two propagation engines for calculating coverage maps: VOACAP and ITURHFProp. This dual‑engine option is new so you can now compare two different models side by side. All map options, incl. longitudinal midpoint and multiple map projections, are available for both engines.
Fresh update on VOACAP Online HF propagation prediction services: you can now choose your map projection for coverage maps — Cylindrical (default) or Azimuthal Equidistant. Try it now: voacap.com/hf/ See Radio New Zealand’s footprint at 0700 UTC on 9700 kHz, beaming 35° from Rangitaiki.
A fresh update just landed on VOACAP Online for Ham Radio / Marine / SWL: you can now choose your longitudinal midpoint for coverage maps. Until today, every map was locked to 0°, but there’s now a 180° option - finally giving listeners in Australasia and Oceania seamless, wrap‑free coverage views.
Updates on #VOACAP DX Charts at voacap.com/dx/ 🌍 LZ0A South Shetlands Islands | January 2026 ❄️ 3G9S Chilean Antarctic | Jan 10-17, 2026 🌴 V6HUCHIDA Micronesia | Jan 22-28, 2026 VOACAP DX Charts - Helping DXpeditions succeed, helping amateurs connect. Happy Holidays everyone & Good DX!
New: a lightweight HTML tool to convert EiBi shortwave schedules into rich KiwiSDR DX labels. Download eibi2kiwi.html + eibisites.csv from github.com/OH6BG/eibi2k..., and the latest EiBi CSV from www.eibispace.de. Ideal for HF BC listeners. Runs fully in your browser. Python version available, too.
I am thrilled to introduce #VOACAP Online for SWL – a free-of-charge dedicated shortwave propagation prediction service designed specifically for shortwave listeners (SWL). Accessible at www.voacap.com/swl/, this powerful online tool brings professional-grade propagation analysis to your fingertips.
Major update to my #VOACAP tools: github.com/OH6BG/VOACAP... - run_p2p_matrix.py: safer, cleaner point-to-point predictions - plot_maps.py: generates VOACAP coverage maps, now fully compatible with the HamCAP DX Charts framework I just updated yesterday. Demo: www.voacap.com/dx/cy0s/hamc...
New release: HamCAP Maps → github.com/OH6BG/HamCAP... . A lightweight client-side viewer for #VOACAP coverage maps made with HamCAP: multi‑band, 3 time slots, lazy‑loading, LRU cache, keyboard access, theme toggle & zoom‑in‑tab. See 3Y0K Bouvet, Feb 2026 demo → www.voacap.com/dx/3y0k/hamc...
NEWS: Launched an ADIF → Cabrillo Converter, a lightweight, single-file HTML/JS/CSS tool that runs 100% in your browser. Drag & drop (or browse) your ADIF file, click “Process,” then preview and download a Cabrillo log — no installations, no servers, no data leaks. 👉 github.com/OH6BG/OH6BG-...
A lot of backend refactoring done at #VOACAP online (www.voacap.com/hf) to make the services more robust. Added new visual cues for ITU Wheel predictions: progress is now shown directly in the button w/ light red background color. Each run takes about 5 seconds, so a little patience is appreciated.
Two upcoming operations now have their own dedicated propagation prediction sites at #VOACAP DX Charts (voacap.com/dx/), including VOACAP and ITURHFProp forecasts plus detailed sunrise/sunset times: * 5K0UA – San Andres Island (Oct 20–30, 2025) * FW5K – Wallis and Futuna (Oct 20 – Nov 7, 2025)
Update on #VOACAP DX Charts (voacap.com/dx/): OJ0YL & OJ0W Märket Reef DXpedition (Sep 20–26, 2025), IOTA EU-053; 160M-6M; CW, FT8, SSB. Special VOACAP site at voacap.com/dx/oj0yl/, in-depth propagation analysis, sunrise/sunset times. If they land early, they participate in SAC CW. Good DX!
New special detailed sites on #VOACAP DX Charts for KH9/K9HEI Wake (Aug), 3G0XQ San Ambrosio (Oct/Nov), PY0S St. Peter & St. Paul (Oct/Nov), PJ6Y Saba (Oct 17–29), 9U1RU Burundi (Oct 29 – Nov 19), PJ7UK St Maarten (Nov 28 – Dec 7), CY0S Sable (March 2026) and VP0SG So. Georgia (March 2027). Gud DX!
#VOACAP DX Charts are updated for the FP5KE DXpedition to St Pierre & Miquelon (Sep 15-26, 2025). The F6KOP radio club's 16 operators will be on all bands/modes. A special site offers detailed predictions and sunrise/sunset times to aid in low-band forecasting at voacap.com/dx/fp5ke/
VOACAP DX Charts (voacap.com/dx/) have been updated with predictions for the upcoming PY0S St. Peter & St. Paul Rocks DXpedition (Oct/Nov 2025). A full-featured service, with detailed analysis and precise sunrise/sunset times, will be made available as soon as the team announces their exact dates.
It's under some of those special prediction sites such as V6D Micronesia. If you think that azimuthal equidistant maps would be useful on the proper VOACAP Online site, I can add it there as an option. The main world map cannot be changed to that projection at the moment.
Ready to conquer airwaves & DX stations? My CCF/OHDXF presentation unlocks #VOACAP secrets: decipher Signal Power distributions, leverage MUFday values & tap into its best services. PLUS, harness ClubLog's smart QSO-based predictions! The PDF is here: www.voacap.com/2023/documen...