Fringe UHF Amplifier question

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r0bbie

198 posts

Master Geek

# 100752 18-Apr-2012 11:17

Hi - Im using Freeview UHF and on my TV I get around 50-57% signal strength. What would you recommend boosting it. Would a TV Mast Amplifier 24db UHF be enough or can a indoor 20DB VHF/UHF TV Amplifier with 2 Way Splitter do the same job?

The Aerial is a new 48 Element Aerial Phased Array, we are in a dip and the aerial is Vertical same as the transmitter

Thanks

Behodar

6771 posts

Uber Geek

Trusted

Lifetime subscriber

# 611078 18-Apr-2012 11:54

The amplifier should be as close to the aerial as possible, so an inline mast amp is best. Bear in mind that amplifying a single full of interference will just give you "louder" interference, so you want the amp on the mast to reduce cable interference.

illicit

553 posts

Ultimate Geek

# 611122 18-Apr-2012 13:02

So the strength is 50-57%

What about the quality? (essentially, that's all that matters)

r0bbie

198 posts

Master Geek

# 611128 18-Apr-2012 13:13

illicit: So the strength is 50-57%

What about the quality? (essentially, that's all that matters)

The TV only shows signal strength and bit errors - its a Samsung

mm1352000

1138 posts

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# 611131 18-Apr-2012 13:29

bit errors ~= BER (bit error rate) ~= quality

[Edit: in other words, bit errors are a measure of quality and that is the source for % quality measurements]

openmedia

2128 posts

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# 611230 18-Apr-2012 16:04

I've got similar issues out at Waimauku. Installer thought we wouldn't get the Kordia Multiplex, but I'm using an old DSE UHF amplifier and I normally get a good picture. Might look at upgrading to Masthead but the BER is the main issue.

Generally known online as OpenMedia, now working for Red Hat APAC a Technology Evangelist and Product Manager. Still playing with MythTV and digital media on the side.

r0bbie

198 posts

Master Geek

# 611276 18-Apr-2012 16:59

mm1352000: bit errors ~= BER (bit error rate) ~= quality

[Edit: in other words, bit errors are a measure of quality and that is the source for % quality measurements]

ahh I see - the bit errors are usually 0-5 % but it does jump every 15mins or so (not always) and then this pixels the picture

mm1352000

1138 posts

Uber Geek

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# 611325 18-Apr-2012 17:58

r0bbie:
mm1352000: bit errors ~= BER (bit error rate) ~= quality

[Edit: in other words, bit errors are a measure of quality and that is the source for % quality measurements]

ahh I see - the bit errors are usually 0-5 % but it does jump every 15mins or so (not always) and then this pixels the picture

In my opinion pixelation every 15 minutes or so is more likely to be an intermittent signal interruption or interference issue than an overall signal quality issue... but then I'm not an installer, so I could be wrong.