I have a combined UHF/VHF roof top aerial.

I have line of site to Waitarua from Narrow Neck, North Shore.

But I am not getting good TV1 on VHF and some 'low signal' issues on UHF.

The current aerial is two years old with all new RG6 cable. The aerial is a Hills OMX300WB.

Any suggestions for appropriate aerials if I went for seperate UHF and VHF aerials.

Also where to buy? As I would want to return them if they made no improvement ( I see DSE don't sell VHF aerials anymore!).