Since taking it down I have realised I can check if the coax was faulty by connecting a 10m dipole (endfed at the shack) and running the wire down the garden. If it is the coax I can replace it and get on 10m, 20m and 40m.
With this antenna I had 10m spots from all over the world (including Australia and Antarctica) with 500mW WSPR.
