SpotHub Dialog
The SpotHub dialog is the central hub for connecting to DX spot sources and configuring how spots are displayed on the panadapter.
Opening SpotHub
Select Settings > SpotHub... from the main menu.
Spot Sources
SpotHub supports multiple spot sources, each on its own tab:
Cluster — DX cluster telnet connectionRBN — Reverse Beacon Network telnet source with rate limitingWSJT-X — UDP listener for WSJT-X decodesSpotCollector — UDP listener for Ham Radio Deluxe SpotCollector broadcastsPOTA — HTTP polling of api.pota.app for current activationsFreeDV — WebSocket feed of FreeDV QSO reporter spots (build-gated by WebSocket support)
Cluster Tab
Control
Description
Server: Hostname of DX cluster to connect to
Port: Telnet port on DX cluster (1-65535)
Callsign: Login callsign sent to cluster
Connect / Disconnect Toggles telnet connection to the cluster
Auto-connect on startup Auto-connects cluster on launch
Cluster Console Read-only telnet console of raw cluster traffic
Send Sends a typed command to the cluster
Spot Color: Opens a color picker for cluster spots
RBN Tab
Control
Description
Server: RBN telnet hostname
Port: RBN telnet port (1-65535)
Callsign: Login callsign to RBN
Rate Limit: Caps RBN spots per second
Connect / Disconnect Toggles RBN connection
Auto-connect on startup Starts RBN automatically
RBN Console Read-only console of RBN traffic
Send Sends command to RBN
Spot Color: Color picker for RBN spots
WSJT-X Tab
Control
Description
Address: UDP bind address for WSJT-X messages
Port: UDP port for WSJT-X (1-65535)
Start / Stop Starts or stops UDP listener
Auto-start on startup Auto-starts listener on launch
CQ Show only CQ calls from WSJT-X
CQ POTA Show CQ POTA calls
Calling Me Show only decodes addressed to your callsign
CQ color / POTA color / Calling Me color / Default color Color pickers for each WSJT-X spot category
WSJT-X Decodes Console of decoded transmissions
Spot Life: Seconds WSJT-X spots remain on panadapter
SpotCollector Tab
Control
Description
UDP Port: UDP port SpotCollector broadcasts on (1-65535)
Start / Stop Starts or stops UDP listener
Auto-start on startup Auto-starts listener on launch
SpotCollector Spots Console of received SpotCollector spots
POTA Tab
Control
Description
Server: Fixed indicator showing api.pota.app (HTTP polling)
Poll Interval: Seconds between POTA polls
Start / Stop Starts or stops POTA polling
Auto-start on startup Auto-starts POTA on launch
POTA Activations Console of activation feed
Spot Color: Color picker for POTA spots
FreeDV Tab
Control
Description
Server: Fixed indicator showing qso.freedv.org (WebSocket)
Start / Stop Connects or disconnects the FreeDV WebSocket
Auto-start on startup Auto-starts FreeDV on launch
FreeDV Spots Console of FreeDV activity
Spot Color: Color picker for FreeDV spots
Spot List Tab
Displays a unified, searchable table of all live spots from every connected source.
Control
Description
Bands: Per-band checkboxes toggle visibility in table. One checkbox per band (160m, 80m, 60m, 40m, 30m, 20m, 17m, 15m, 12m, 10m, 6m, 2m, etc.). Checkboxes use a wrap layout so they remain readable even when the dialog is narrow.
Clear Empties current spot list
Spot table Sortable table of spots. Double-click a row to tune. Columns: Time, Freq, DX Call, Comment, Spotter, Band, Mode, Source. Right-click column headers to show or hide individual columns.
Changing Visible Columns
Right-click any column header in the spot table.
A menu appears with checkable entries for each column.
Click a checkable entry to toggle that column's visibility. The menu remains open so you can toggle multiple columns in one pass.
Click outside the menu or press Escape to close the menu when done.
Display Tab
Configures panadapter spot visualization, Signal History tunables, and DXCC coloring.
Toggle Row
Control
Description
Spots: Master toggle for DX spot overlay. Enabled by default.
Memories: Toggles memory-channel overlay on panadapter. Disabled by default.
Auto: Automatically switch slice mode when clicking a spot that includes mode info (e.g. CW, FT8, RTTY). Enabled by default.
Signals Gold markers for detected voice-width signals on the panadapter. Disabled by default.
QRM Red markers for persistent carriers and wideband interference. Disabled by default.
Clear All Clears all DX spots, memory feed, Signal History markers and QRM markers from the spectrum.
Sliders
Control
Range
Default
Description
Levels: 1-10
3
Number of vertical stacking rows for spots
Position: 0-100
50
Vertical position on panadapter
Font Size: 8-32
16
Spot text size
Spot Lifetime: 10 sec – 24 hrs (non-linear steps)
—
Seconds before a spot fades away
Override Colors
Control
Description
Override Colors: Forces a single text color for all spots. Disabled by default.
Spot text color picker Opens color picker for spot text color. Default: #FFFF00 (yellow).
Override Background: Enabled Enables custom spot background color. Enabled by default.
Override Background: Auto Auto-picks background color for contrast. Enabled by default.
Spot background color picker Opens color picker for spot background color. Default: #000000 (black).
Background Opacity: Opacity of spot background color. Range: 0-100. Default: 48.
Spot Lines: Draws vertical lines from the spectrum up to each spot label. Disable during contests to reduce visual clutter. Enabled by default.
Total Spots
Displays live count of spots currently tracked across all sources.
DXCC Coloring Section
Controls in the left column below the divider.
Control
Description
DXCC Colors: Colors spots by worked/confirmed/needed DXCC status. Disabled by default.
Log File (ADIF): Loads an ADIF log file to drive DXCC coloring. Auto-watches the file for changes after selection.
Imported: Shows QSO count and entity count when a log is loaded. Format: <N> QSOs / <M> entities.
DXCC Color swatches Color pickers for each DXCC status category: New DXCC, New Band, New Mode, Worked
Signal History Section
Controls in the right column below the divider.
Control
Range
Default
Description
Marker Lifetime: 15-300 sec
60
How long an inactive Signal History marker persists before being removed
QRM Gate: 3-30 sec
6
How long a narrow carrier or wideband signal must persist before being classified as QRM
Edge Threshold: 1.0-10.0 dB
3.0
Threshold above noise floor for the slope edge walk that refines the S-History carrier-side edge
Signal History color swatches —
#FFC800 / #FF0000
Color pickers for voice signal markers (gold) and QRM markers (red)
Snap to Step: —
Disabled
Rounds S-History click-to-tune to the nearest multiple of the active slice's step size, hiding the small carrier offset
Status Indicators
Indicator
Possible States
Meaning
Status (each source)
Disconnected, Connected, Stopped, Listening, Polling
Current connection/listener state for each source
Total spots count
—
Total spots currently tracked across all sources
DXCC stats
—
Imported QSO and entity count from ADIF log when DXCC coloring is enabled. Format: <N> QSOs / <M> entities.