DXChrono Desktop

Help and user guide

The world map

The main display is a world map (NASA Blue Marble if you ran download_map.py, otherwise a procedural map). When you zoom in, the app keeps a higher-resolution copy of the rolled map (up to a safe memory cap) and resamples it with smoothing, so coastlines stay sharper than when the map was stretched from the window-sized bitmap alone. Pan and zoom apply only to the map: desk widgets stay in fixed screen positions. Use the mouse wheel over the map to zoom toward the cursor, left-drag or middle-click drag to pan, or double-click empty map (or press Home) to restore the default full-world view. With no modal dialog open, you can use + / = / PgUp and - / PgDn (and keypad + / -) to zoom, and after zooming in use the arrow keys (and keypad 8462) to pan—held keys repeat. See Controls for details. Gestures are ignored when the cursor is over a widget or a blocking dialog so panels keep normal drag, resize, and scroll behaviour.

It shows:

When DX Cluster, Cloudlog, QRZ Logbook, PSK Reporter, or N1MM are enabled, their spots or QSOs appear as markers (and optional great-circle propagation lines). Cloudlog QSOs use diamond markers; QRZ Logbook uses squares. Hover over a marker for a tooltip with details. QRZ pins need a gridsquare or coordinates in the returned log data—see Settings → QRZ Logbook.

Map hover now supports both markers and great-circle propagation lines: moving over a line highlights it, and tooltips include the source feed (for example DX Spot, N1MM, or PSK Reporter).

World map with NOAA Ovation aurora probability overlay showing green and teal regions
Aurora overlay (press A): aurora probability from NOAA Ovation.
World map with Maximum Usable Frequency overlay and colour-coded legend
MUF overlay (press M): Maximum Usable Frequency with legend.

Widgets

Widgets are draggable panels. Drag by the title bar to move them; positions are saved per mode (windowed/fullscreen). Use W to reset all positions to default. Toggle visibility in Settings → Widgets and integration-specific tabs.

Widget behavior notes

Clock

Large UTC time and date – essential for coordination and logging.

Clock widget showing UTC time and date
The clock widget displays current UTC time and date.

Solar indices

Solar flux (SFI), A-index, K-index, sunspot number, and X-ray from NOAA. Indicates propagation conditions.

Solar Data panel showing SFI, A-index, K-index, sunspot number, and X-ray from NOAA
The Solar Data panel shows SFI, A-index, K-index, sunspot number, and X-ray.

Band conditions

HF bands (80 m–10 m) with day and night status (e.g. Good / Fair / Poor) from HamQSL data.

HF Band Conditions panel showing day and night status by band
The HF Band Conditions panel shows day/night status for 80 m to 10 m.

Sun/Moon Az-El

Optional panel with real-time azimuth (AZ) and elevation (EL) for the Sun and Moon at your QTH. Values are calculated from your station location in Settings → Station (latitude/longitude or grid square).

Station info

Your callsign and grid (or location) for quick reference.

Help / Legend

On-screen shortcut legend. Toggle with L.

Cloudlog

QSO statistics (today, month, year, total) and recent QSOs when Cloudlog is configured and enabled.

Cloudlog widget showing QSO statistics and recent contacts
The Cloudlog widget shows QSO stats and recent QSOs when connected.

ADIF Logbook

When ADIF file mode is enabled, a dedicated ADIF Logbook widget shows the same style of recent/log summary cards using your local .adi file as the source.

DX Cluster

Live list of DX spots from the connected cluster. Spots can be shown on the map with optional great-circle propagation lines.

DX Cluster widget showing live list of DX spots
The DX Cluster widget shows a live list of spots from the connected cluster.

PSK Reporter

When PSK Reporter is enabled in Settings, this panel shows MQTT connection status (indicator dot in the title bar) and a scrollable table of recent spots for your callsign. The title shows HEARD ME or I HEAR depending on the spot list mode you chose in Settings → PSK Reporter.

PSK Reporter widget showing I HEAR mode with a 40 metre band filter, station callsigns, frequencies, modes, SNR bars, and ages
PSK Reporter widget in I HEAR mode with a 40 m band filter: calls, frequencies, modes, SNR bars, and age.

Enable the panel under Settings → Widgets. Feeds and map behaviour are configured under Settings → PSK Reporter and Integrations → PSK Reporter.

MUF

MUF at-QTH panel shown when MUF overlay is enabled (M).

N1MM status & recent QSOs

When N1MM+ UDP is enabled: contest/station and radio context, plus a list of recent QSOs. Recent N1MM QSOs also appear on the map.

Upcoming Passes

Scrollable list of predicted satellite passes from your selected satellites and station location. Shows AOS/LOS, MAX as peak elevation in degrees, TRK as three compass points for the pass arc at AOS, peak, and LOS (for example W-N-E), and live ETA/countdown. Active passes are highlighted for the full pass duration.

Upcoming Contests

Scrollable WA7BNM contest schedule panel sourced from the contestcalendar RSS feed. Rows show contest name, time window, and live status/countdown. In-progress contests are highlighted. Countdowns are shown in days/hours/minutes for longer windows. If feed refresh fails temporarily, last good data is kept and marked as stale.

Special event

When Special Event mode is on: event name and dates, scrolling “Last worked” banner, contacts today, distance to last QSO, and optional legend.