1 HD is one of the strong channels in my area and never gives any bother but I have trouble with 2 and 7 particularlly in bad weather. I have four different sets and tuners that all exhibit the same results. I am in an outer Sydney suburb about 25KM from the transmitters with an outside aerial and masthead amplifier. There is no signal at all from an indoor aerial on digital and only a very noisy signal on analogue.
Digital transmissions are more noticeably affected by signal strength and quality than the old analogue signal which just gets a bit more noisy. It can drop right out of sync even to the dreaded blue screen. You may need a better aerial and masthead amplifier to get a more reliable signal.
I had a look at your terrain on Google Earth and it does not look good for digital TV.
Barry
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