Following John G3XDY’s reminder with the UK SHF results, I looked up the relevant Ofcom document.
If you intend to use the part of the 13cm band which lies between 2310 and 2350 MHz then you must register with Ofcom, according to the 50-odd page document:
I made a few contacts on 13cm:
On the Saturday I tried 70cm. My best DX (furthest distance) was DF0MU at 611km. I also managed Conrad PA5Y, Gordon GI6ATZ, David GM4JJJ & Robert GM4GUF/P all on the key and David GI4SNA on SSB. I ran the usual 10W to the 19 element yagi. This entry won a certificate: 170506_70cm_trophy_cert
On Sunday I tried 23cm and 13cm.
On 23cm DF0MU was my best DX again, but it was a surprise to work Maurice F6DKW. I don’t know what type of propagation this was. Maurice is not in a particularly good direction for me, being over the shoulder of the hill-top to the south. I couldn’t hear him at all at first. Then he just rose out of the noise & stayed there. The more distant contacts were all on the morse key as usual. The LT23S says 8W on its front meter. The coax goes via a relay & up to the 44 el Wimo a few metres above.
On 13cm, John G3XDY was my best DX. I ran 2W to the 40 el Wimo, with the FT-817 providing the drive.