A reminder that there was a 4 page article in Sept QST on the design of my simple transverter for 630m. This is also on my main website at www.g3xbm.co.uk. I use it with my FT817, but other rigs could be used.
630m is a good band and the transverter puts out 10-15W into 50 ohms. Even with my earth-electrode "antenna" it has spanned most of western Europe on TX with a measured ERP of about 5mW on WSPR.