WTR (Business) Database – Search Options

WTR (Business) covers Ofcom’s Wireless Telegraphy Register — individual licensed business radio allocations (a specific company licensed to transmit on a specific frequency), as opposed to the shared/light-licence schemes covered in Common Frequencies.

With WTR selected, the toolbar shows four tools:

View row full Details

Select a row first, then click this to open a detail window. It doesn’t dump every raw database field — a few internal-only fields are hidden. What you do get: Licence, Company, Frequency, Mode, Address, Postcode, Issue Date, and whether it’s a point-based or national licence — plus, for point-based licences, a Map link that opens the location in the in-app map (or a browser map if the in-app map isn’t available). National licences have no location, so they won’t show a Map link.

Where the row has a Licence number, a Filter button also appears — click it to instantly narrow the whole dataset down to just that licence number. Under the hood, this just drops the licence number into the same search box you’d type into yourself, so it’s really a shortcut for “search for this exact licence” rather than anything more specialised.

Select Modes…

Filters to specific transmission modes, drawn from WTR’s own single Mode column — a different mechanism to Amateur Repeaters’ mode filter, which instead checks separate yes/no columns per mode (see that article).

WTR National

WTR is really two datasets combined: site-specific licences (with a location) and national/area-wide licences (with none). This toggle brings the national set into view. With no Range Search active, it replaces the view with national-only results; with a Range Search active, it adds national results on top of your location results rather than replacing them — matched national rows always sort to the bottom of the list and show a blank Miles column, since they have no location to measure distance from. The button’s label tells you which state you’re in (All / Range Only / National Only / Range + National).

Check New

Despite the name, this is a date filter, not a highlight: choose 1, 2, 3, or 4 weeks (or Clear Filter) to show only licences issued within that window, based on their issue date — useful for spotting recently-issued allocations you might not have seen before.

Sorting

WTR results are sorted alphabetically by company name by default, the same as Common Frequencies and Amateur Repeaters. Once you run a Range Search, results switch to nearest-first (then by frequency).

Range Search is available for this dataset and can be combined with all of the above.