We purchased HD terristrial freeview decoder and worked fine with current arieal, UHF. was perfect for bout 1 year. now we dont get reception in the morning and hit and iss at nights. (back to grainy TV mode

I have pulled the UHF down and cleaned up the balun box so all the copper is shiney. Have installed a new 75 coxail cable diect to the freeview bow (approx 16m) but still get the dreaded "no signal" box appear. try it later and perfect reception. Aerial is pointed towards waitakere and we live in beachlands. Driving me nuts. any help appreciated. thanks