How to contribute a frequency listing
What to include in a submission, how we check it, and the difference between a useful row and a dump of someone else’s list.
The database only gets better when people who can actually hear a signal write it down. You do not need to be a Full licensee. You do need to be accurate, modest, and on the right side of the house rules.
Use the submission form if you can
Signed-in members with the right permission can add a frequency for review. Staff look at submissions; they are not live the second you hit save. If you cannot submit yet, post in the Frequencies board with the same fields.
The fields that make a row usable
- Frequency in MHz — as received, not a channel number unless you also give MHz. For airband, say whether you mean 8.33 channel or actual.
- Mode — NFM, AM, USB, DMR, D-STAR, Fusion, etc. “Digital” is not a mode.
- Name — what a human would search. “GB3ZZ output” beats “repeater.”
- Place and county — town plus ceremonial or admin county. “UK-wide” is for truly national markers only.
- Tone / colour code / talkgroup / module / RAN / NAC — if you needed them to hear it, the next person will too.
- Date last heard — in the notes. A 2014 memory is archaeology.
- Source — “heard from IO82,” “keeper page,” “ATIS loop ident.” Not “a PDF from a random site.”
Latitude and longitude help the map. A postcode centroid is fine if you do not want to publish a mast grid. NGR can be converted from lat/long with the tools page.
What happens on review
We check that the row is in scope (amateur / licence-free / public marine or aviation information / broadcast marker), that it is not a duplicate, and that it does not look like a pasted private net. We may ask for a clarification on the forum instead of publishing.
Wrong CTCSS is worse than no CTCSS. Leave tone empty if you are guessing.
Do not submit
- Emergency services, fireground, police, ambulance, or “uniden wild west” dumps.
- Private business radio, school radios with names, taxi firms, shopping-centre security.
- Amateur inputs as if they were listening channels.
- Copies of another website’s table. If we wanted RadioReference-by-proxy we would have said so. We did not.
- Frequencies you have not heard and cannot attribute to a keeper or official public source.
Forum posts that help
A good forum report reads like a log, not a novel:
145.600 NFM, CTCSS 94.8, IO91, 19 Aug 2026, GB3xx output matching ukrepeater. Handheld in the garden, full quieting on a 5/8.
A bad one:
Here’s 400 lines I found, please add.
Regional boards exist so Scotland, Wales, NI and the English regions can be specific. Use them.
Corrections
Frequencies move. If you can show a keeper change or a current ATIS ident, we will update. Comment on the listing context in the forum or submit a new row that supersedes the old one — do not start a war in someone else’s thread.
Credits and the Contributor rank
Useful, lawful submissions and patient forum help are how people get noticed. The Contributor usergroup is a display rank with the same permissions as Member — a thank you, not a superuser. Staff assign it; it is not an automatic post-count badge.
Read lawful hobby listening before you paste anything spicy, then send us something you actually heard. That is the whole loop.