Public HAM RADIO services

Read the band.
Shape the path.

Four focused tools for the work between a callsign and a connection: see what is moving, understand what will travel, connect directly, and build on the data.

00 Built for the long path, from live spots to useful systems.
DX-Tron / system view online
TX JO62QM
RX FN20XR
+DX-Tron
52.52 N / 13.40 E
Public nodes04
Primary pathHF
Time baseUTC

The service set

Four ways
into the band.

Each service has a different job. Together they make a compact toolkit for finding activity, reading conditions, and connecting software to the HAM RADIO world.

01Live network

DX-Tron Cluster

A live view of the bands as they move. Follow current spots by band, mode, continent, country, and callsign.

  • Real-time spot table
  • Band and mode filters
  • Grid, DXCC, ITU, and CQ context
Open DX-Tron Cluster
cluster.dxtron.com
DX-Tron Cluster live spot table preview
Spot activity / filtered by the signal
02Propagation

VOACAP HF propagation prediction

Model a path before you call. Compare UTC hours and frequencies with locators, power, antenna choice, and sunspot data.

  • Maidenhead locator input
  • Probability matrix by frequency
  • Local voacapl engine
Run a prediction
voacap.dxtron.com
VOACAP HF propagation prediction matrix preview
Probability / time and frequency
03Build layer

DX-Tron Ham API

A universal API for HAM RADIO operators. Use documented endpoints for accounts, authentication, cluster data, and contest information.

  • OpenAPI documentation
  • Bearer authentication
  • JSON endpoints for applications
Read the API docs
hamapi.dxtron.com
DX-Tron Ham API OpenAPI documentation preview
Endpoints / ready to connect
04Telnet node

DXSpider Node

A direct Telnet gateway to the DX-Cluster network, with a public node page for status, uptime, users, and live traffic statistics.

  • Telnet port 7300
  • Node and user status
  • MRTG traffic statistics
spider.dxtron.com:7300
DXSpider Node Telnet status preview
Node status / Telnet DX-Cluster

A practical loop

Spot.
Predict. Build.

Keep the workflow close to the signal. Start with what is happening now, test the path, then take the useful parts into your own tools.

01

Find the activity

Scan the DX-Tron Cluster for fresh spots and the context around them.

02

Read the path

Use VOACAP to see how the path changes across UTC hours and HF frequencies.

03

Connect your system

Use the DX-Tron Ham API when the next useful view belongs in your own application.

One home base

Useful by itself.
Connected by design.

DX-Tron brings the public-facing HAM RADIO services under one roof. Open a service directly, or move through the whole loop when the path calls for it.

Signal note / 001

Four services.
One direction:

Further. UTC / HF
API / DX