Our house came with a UHF/VHF aerial. It had a Kingray signal amplifier box, but the power cable was gone. I figured that out back in the analog days and got a new power box down in the house to power the signal amplifier.
The Kingray box amplifies UHF and VHF and connects to another amplifier box of some sort on the UHF antenna. Water has gotten into that and rusted it out. It seems to point towards Kauwau (from a hillside in Hataitai without line of sight
That all got us some snowy prime and tv 1 on analog. Couldn't get digital reception first time with the Tivo.
Anyway, I opened up and fiddled with the gain control in the Kingray box (boosted it a bit). That pulled in 4 channels. Boosted it a bit more and they were all there! So the rusty old inherited equipment did the business (signal strength 70-74%).
Does anyone know the consequences of the amplifier box on the UHF antenna being rusted out? should I try and seal it better? Presumably the cable is still carrying a signal to the Kingray box, and maybe the circuitry wasn't doing anything?