WSJT-X / JTDX Band Map

Swisslog implements a very complete Band map function to monitor WSJT-X / JTDX activity if they are configured as the main instance (see WSJT-X / JTDX UDP settings). It has the following features:

The Band Map window

The Band Map window offers a graphical view of the whole band activity which is very interesting and nice looking! You can open as many WSJT-X / JTDX band maps as you want! Each window can display different statistic and use a different set of filters, settings, etc. It's a very good complement for WSJT-X / JTDX because you can check the status for statistics not supported by the colour system of WSJT-X / JTDX such as WAZ, WAC, WPX, etc.

To open a WSJT-X / JTDX Band Map window select View | WSJT-X / JTDX Band Map. This is what the window looks like:

The window title will show the program which Swisslog is receiving messages (WSJT-X or JTDX), the current mode and band and the selected statistic for the band map (by default is DXCC).

Use the zoom buttons to enlarge/narrow the bandwidth by pressing the correspondig + or - buttons respectively (or by using the mouse wheel: place the mouse cursor over a call and move mouse wheel up/down. Selected callsign will be centered in the band map). You can also move the dial up/down by dragging the ruler with your mouse (left click, hold and drag up/down). You can resize the band map window to the size you need.

Use the + - buttons to change the font size of Callsigns and Gridsquares.

By placing the mouse cursor over any call/grid you will see the message details (including if LotW/eQSL user or US State for US Calls if found in the embedded FCC database):

IMPORTANT: Searching US State in the FCC database may affect performance according your computer, number of QSO in your logbook, spot traffic and parallel software being executed along with Swisslog. If you experience this o simply don't want to use this feature, it can be disabled in Options / Query US State to the FCC database for DX message and Band Maps windows.

At the left bottom part of Swisslog you will see the audio frequency corresponding to the mouse cursor position.

Double clicking in a call/grid does the same action as double clicking in the message in the "Band activity" window of WSJT-X / JTDX. IMPORTANT: You have to enable the "Accept UDP Request" option in Settings > Reporting. In WSJT-X, this will only work if replying a CQ or QRZ message. In JTDX, user can choose whether accepting UDP replies from CQ, CQ and 73 or any messages in Misc > Accept UDP reply messages (CQ is the default option). This function won't work if you use JT Alert along with Swisslog!.

WSJT-X / JTDX Band map is also very useful to know the split frequency when working DX. You can easily check out if you are hearing the QSO partner of the DX station to know the split frequency for such QSO.

If the station is calling CQ to any specific direction such as EU, AS, JA, ZL, etc. it will be shown preceding the callsign (i.e CQ JA EA3GCV).


The following options and functions are available via the pop-up menu (right mouse button):

Hint: The selected statistic will be displayed in the Band Map window title. If you need to see another statistic simply open a new WSJT-X / JTDX Band Map window and select the desired statistic.

Hint:  If the Statistic-Quick Info window is open, mouse left click on a callsign/gridsquare to display the Info for the selected callsign.

All settings (window size and position, font size, zoom, statistic, statistic filter, colors, etc.) will be saved for every band map window.

Below you can see some samples of WSJT-X / JTDX band maps with different settings. There are infinite combinations!

Copyright 2004 SWISSLOG
Last modified: 16 ago. 2022