Heard a signal and want to know who it is? Type the dial frequency — matches within tolerance, on-air first.
Live nets in session via NetLogger (needs a connection; last fetch kept for reference). The major scheduled HF nets below are built in and work fully offline — star ★ to keep one in Favorites.
Select ★ on any listing to keep it here. Favorites on the air now are highlighted. Select ✓ to mark one heard today — it dims until 0000 UTC.
Add your own frequency
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Used only to highlight you in live net rosters and mark nets "✓ logged" once net control logs you. Stored on-device.
Above ~50 MHz propagation is line of sight, so a distant 2m/70cm net in the live list usually can't be worked. Distance is measured to the net's nearest checked-in station; nets with no location data are always shown. HF nets are never hidden.
Full-screen clock & on-air view that keeps the screen awake — ideal for a shack monitor. Some browsers (iPhone Safari) don't allow full-screen; the keep-awake half still works. Select it again to exit.
Full EiBi schedule offline
Manual load (when auto-update can't reach the server)
- Download sked-a26.csv on this device.
- Select Load file and pick it — parsing is fully on-device.
Custom relay (your own Cloudflare Worker — most reliable)
Not needed for normal use — the schedule and live nets both come from SkyWave's own mirror. This is a fallback for reaching EiBi and NetLogger directly if the mirror is ever unavailable: deploy the tiny worker in workers/relay.js from the repo and paste its URL here. No third-party proxies are used.
Export & print
Copy the current On-Air list as plain text (good for a net log or report), save an offline band card, or print a clean reference sheet for the go-kit.
Code key
Grayline & band planner
Computed on-device from your coordinates — no network needed. Grayline (sunrise/sunset terminator) gives an enhanced DX window on the lower bands.
Solar conditions HamQSL · N0NBH / K4HG
Solar flux (SFI), A & K index, HF band conditions. Updates every ~5 min. Select it to open the full page.
Planetary K-index NOAA SWPC
Kp ≤ 2 quiet · 3–4 unsettled · ≥ 5 storm (HF degraded, aurora possible). Full chart ↗
Live tools & maps
Proppy
HF point-to-point predictions — W6ELA
VOACAP
Long-path coverage predictions
Grayline
Live solar terminator world map
WebSDR
Online shortwave receivers worldwide
Aurora
30-min forecast — NOAA SWPC
DX Cluster
Live DX spots — DXHeat
All links open in your browser. The grayline and band planner above work without a connection.