Author Topic: Digital Reception Problem  (Read 1138 times)

wetrix

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Digital Reception Problem
« on: 09, October 2011, 10:20:59 AM »
I live in Northcote and have a 47 element X-type arial pointing towards the Waiatarua transmitter (like all my neighbours) in the correct horizontal configuration. The cable from the antenna to my TV runs about 14m, is split once and runs into a wall jack (so there are a few points in the cable that have connectors and probably introduce some noise).

I have reliable digital reception for the TVNZ channels.
Digital TV3 and TV4 work except when the weather is very bad.
Digital Maori TV is almost unwatchable due to pixilation, so I resort to analogue Maori TV, which is as perfect as analogue can be.

Given that my analogue UHF reception is so clear, will I benefit (fix Maori TV) from replacing the cable from the antenna with a single run of new RG6?

Many thanks.

Freeviewshop Administrator

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Re: Digital Reception Problem
« Reply #1 on: 10, October 2011, 09:31:54 AM »
I live in Northcote and have a 47 element X-type arial pointing towards the Waiatarua transmitter (like all my neighbours) in the correct horizontal configuration. The cable from the antenna to my TV runs about 14m, is split once and runs into a wall jack (so there are a few points in the cable that have connectors and probably introduce some noise).

I have reliable digital reception for the TVNZ channels.
Digital TV3 and TV4 work except when the weather is very bad.
Digital Maori TV is almost unwatchable due to pixilation, so I resort to analogue Maori TV, which is as perfect as analogue can be.

Given that my analogue UHF reception is so clear, will I benefit (fix Maori TV) from replacing the cable from the antenna with a single run of new RG6?

Many thanks.

Hi,

Yes that should improve the signal quality, make sure you buy US made cable that has been sweep tested like this:
http://www.freeviewshop.co.nz/3ghz-freeview-satellite-cable-p-398.html

For DTT it is very important to maintain the surge impedance that is why you should where possible use F-Type connections (not screw and saddle) and also use good cable where they check that the surge impedance is 75 ohms all the way through the cable they do that by sweep testing.

By eliminating the splitter you will also remove an insertion loss of approx 4dB.