I must update this thread and say I owe Humax an apology on this one
My PSB3 band is now fully working as I think the landlord has sorted out the aerial system. Its been working for a week of full viewing with no problems.
Crazy thing it started working just as a Huawei tester unit was in the post too me. Now that really is murphys law coupled with the fact that there is no real communication with the landlord here and he does any work if an when he likes for 40 private flats.
So I was getting frustrated and the Humax box was clearly not at fault here. Interesting it was just one band so maybe Winter Hill and the relay station werent on form but its more likely that the aerial system was misaligned, short circuiting or full of water.
So apologies to the 2000T 
