ISM bands

It surprises me that more use of some ISM bands is not utilised for beacons. In many countries around the world this is licence free with a very low ERP, yet we know worldwide coverage is possible. 

Some countries require the use of type approved equipment, although I am unsure if in some countries you can type approve by yourself that you comply.

It seems an easy route for many. Certainly a few have done this on the 13m and 8m ISM bands with great success. 

When my 8m TX permit expires next year, this is the route I propose to take here in the UK, where OFCOM has indicated its approval.