11 Dec 2023

ISM band operation - licence exempt

A reminder that re-reading the OFCOM pages I am convinced that operation in the ISM bands without a licence is legal in the UK (and probably elsewhere) as long as the interface requirements are met.  This relates to power levels, and in some cases, duty cycles.

Not being a legal expert you have to read the rules in your administration.

I am pretty sure this means 8m WSPR at 10mW ERP without a licence is legal in the UK for anyone. In Australia 5mW has covered 5000km on 8m WSPR, so all of Europe would be in range especially in the Es season. The callsign can be made up, but best to use one that WSPRnet can use. In the past I used 8M3ISM. You could choose 8M3 plus your initials for example.

Using WSPRnet you can see who is spotting you.  This is NOT amateur radio.

See you in the spring?

1 comment:

PE4BAS, Bas said...

That's an idea! Not using your official amateurradio callsign. In that case the signal is almost not traceable. Unfortunately in that case you have to keep the results for yourself if not allowed in the country you live in. Publishing on any social media or blog cannot be done. But anyway, it's worth to consider... 73, Bas