Live propagation, for your location
As soon as you open the app, you know which bands to work. The measurements come from NOAA, European ionosondes and the DX Cluster, and are recalculated for your QTH.
- HF propagation: MUF and foF2 over Switzerland, open bands from 80 to 10 m, day and night conditions.
- Space weather: solar flux, Kp index and A index, flares, solar wind and Bz field, aurora risk and sporadic E on 6 m.
- Weather for your antennas: gusts and thunderstorms forecast at your QTH over the next few hours.
- DX Cluster: the latest spots, filtered on the bands you are interested in.
- Satellite passes over the next 24 hours, with elevation and duration.
- UTC and Swiss time, your locator worked out from GPS.

Warned before the wind picks up
Choose the alerts that are useful to you and their thresholds. The app notifies you on your phone, even when it is closed, once per event and without flooding you.
- Strong wind at your QTH, at the threshold you set, to protect your antennas.
- Thunderstorm forecast near you.
- Solar flare of class M or X, and geomagnetic storm above the Kp index you choose.
- Aurora and sporadic E on 6 m: the alert arrives when the band opens.
- New article on the club blog.
The satellites in your sky
Hold up your phone: the camera shows the horizon, the cardinal points and the amateur radio satellites exactly where they pass, with the curve of their pass minute by minute.
- Aim through the camera: satellites, the sun and nearby repeaters drawn on the image. An arrow shows you which way to turn.
- Sky map: the zenith in the centre, the horizon at the edge, the passes over the next few hours.
- ISS, SO-50, AO-123, RS-44, FO-29, AO-7, IO-117, AO-73 and the Swiss satellite SwissCube, with their frequencies.
- Rise and set times, maximum elevation, live azimuth and elevation.

The radio world, and the heading to reach it
The amateur radio world map from hb9v.ch, built into the app and linked to your station. Tap a country or search for a callsign: the app gives you its zone, local time, distance and heading, then helps you turn the antenna.
- CQ and ITU zones, IARU regions, time zones and locators, in five projections including a globe and a map centred on your QTH.
- Live grey line, short path and long path drawn on the map, sunrise and sunset at both ends.
- DX Cluster spots, satellites and aurora, live.
- Your logbook on the map: your QSOs and the zones already worked are shown, and the zones you still need stand out.
- Point the antenna: a compass shows you which way to turn, and the phone vibrates when you are on target.


Your logbook, always with you
Log each QSO in a few taps, on a repeater or portable. The UTC time fills itself in and the app remembers your last frequency and mode.
- Callsign, frequency (the band is worked out for you), mode, sent and received reports, first name, locator and notes.
- SSB, CW, FM, AM, FT8, FT4, RTTY, DMR, C4FM and D-STAR, with the right report suggested for each mode.
- Distance worked out from the locator, a warning if the station is already in the log, search.
- ADIF export for LoTW, eQSL, QRZ.com, Club Log or your logging software.
- The logbook stays on your phone: nothing is sent to the club.

Every technical term explained
A small “?” sits next to technical terms. Tap it: a card opens and explains simply what it is and what it means for your station. Ideal for beginners or for preparing the licence exam.
- MUF, foF2, solar flux, Kp index, A index, solar wind, Bz, flares, aurora, sporadic E.
- A colour gauge shows where the current value stands: quiet, unsettled or storm.
- DX Cluster, QTH and locator, UTC, QSO, RST report, ADIF file, azimuth and elevation.

All the club's tools, in one place
The Tools button opens a menu with everything you need in the field. Everything opens in the app, and the reference cards even work offline.


The club blog and an app the way you like it
Articles from hb9v.ch can be read in the app, with no ads or unnecessary menus. In the settings, you adapt the app to your station.
- Blog: news, equipment, OM portraits and club life, with a notification for each new article if you wish.
- Your station: callsign, position by GPS or by locator, Swiss time or UTC.
- Appearance: automatic, light, dark for night-time, or classic.

Free, no account and no ads
The app does not ask you for an account or an e-mail address. It contains no advertising and no tracking tools.
- Your logbook and settings stay on your phone. On the World map, your QSOs are shown in the app without being sent anywhere.
- The camera and sensors used by Sky are only used for display: no image is saved or sent.
- Your position is only sent rounded to the nearest kilometre, for your antenna weather and the alerts you turn on.


