Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


rayonline

1665 posts

Uber Geek


#115988 14-Apr-2013 17:52
Send private message

People are hogging up the standard def sky tv, so figured if I am going to put in UHF and a splitter. 

For the time being upstairs we have two bedrooms wanting it now out of the four rooms.  Would you get a 4 way splitter incase for the future or would you just get a 2 way for now and upgrade later or is there no difference?



Cheers. 

Create new topic
gregmcc
1835 posts

Uber Geek

Trusted
Lifetime subscriber

  #799248 14-Apr-2013 18:22
Send private message

Put a 4 way splitter in.

Do you have a masthead amp? if so you will need a splitter that has a power pass thru (this is so the power adaptor you have in side can send power up the aerial wire to the amp)

rayonline

1665 posts

Uber Geek


  #799250 14-Apr-2013 18:26
Send private message

Don't have the UHF aerial yet. Just planning. Hope I don't need an amp.

 
 
 
 


Deev8
481 posts

Ultimate Geek


  #800268 16-Apr-2013 15:12
Send private message

Do keep in mind that any splitter will reduce the strength of the signal received at each output from the splitter compared to that comming in from the aerial. Although you reduce the signal strength by splitting the signal, the signal quality should be exactly the same before and after the split, and signal quality is normally more important than signal strength.

At UHF frequencies a 2 way splitter will result in a loss of around 4dB, the loss of a 4 way splitter will be around 8dB and a 6 way splitter around 10dB. So when you get your UHF aerial fitted, first try connecting it directly to one TV without any splitter to make sure that you get an acceptable signal like that. Then fit the splitter and see if the signal is still acceptable - if it isn't you may need to fit an amplifier between the aerial and the splitter.


heavyusr
83 posts

Master Geek


  #800634 17-Apr-2013 03:22
Send private message

Isn't it possible to have a powered splitter without a masthead amp?
A powered splitter doesn't degrade the signal at all does it?

Brunzy
961 posts

Ultimate Geek

Trusted

  #801078 17-Apr-2013 16:02
Send private message

Deev8: Do keep in mind that any splitter will reduce the strength of the signal received at each output from the splitter compared to that comming in from the aerial. Although you reduce the signal strength by splitting the signal, the signal quality should be exactly the same before and after the split, and signal quality is normally more important than signal strength.

At UHF frequencies a 2 way splitter will result in a loss of around 4dB, the loss of a 4 way splitter will be around 8dB and a 6 way splitter around 10dB. So when you get your UHF aerial fitted, first try connecting it directly to one TV without any splitter to make sure that you get an acceptable signal like that. Then fit the splitter and see if the signal is still acceptable - if it isn't you may need to fit an amplifier between the aerial and the splitter.



Sorry but that is incorrect , the quality also deteriorates, although if you have a decent signal you can comfortably split it 4 or more ways

Also , if the quality stayed the same why would he need an amplifier ;-)

Deev8
481 posts

Ultimate Geek


  #801083 17-Apr-2013 16:12
Send private message

heavyusr: Isn't it possible to have a powered splitter without a masthead amp?
A powered splitter doesn't degrade the signal at all does it?

A powered splitter is just an amplifier and a splitter combined into a single device - so it amplifies the signal then splits it, with the loss of the splitter theoretically cancelling out the gain of the amplifier. That's OK if you know that your signal needs amplification, but you really don't want any amplification unless it's really necessary.

And finally it's worth saying that a "masthead amplifier" doesn't have to be installed on the mast head, it can be anywhere before the splitter, right next to it if necessary. You do get the best results by installing the amplifier as close as possible to the aerial, but there really isn't much loss of efficiency by putting it several metres further from the aerial, and inside the house where it is much easier to install.

Deev8
481 posts

Ultimate Geek


  #801085 17-Apr-2013 16:21
Send private message

Brunzy:
Deev8: Do keep in mind that any splitter will reduce the strength of the signal received at each output from the splitter compared to that comming in from the aerial. Although you reduce the signal strength by splitting the signal, the signal quality should be exactly the same before and after the split, and signal quality is normally more important than signal strength.


Sorry but that is incorrect , the quality also deteriorates, although if you have a decent signal you can comfortably split it 4 or more ways

Also , if the quality stayed the same why would he need an amplifier ;-)


The reason that you need an amplifier is to boost the signal strength above the required threshold, amplifiers do not, and cannot improve signal quality.

 
 
 
 


Brunzy
961 posts

Ultimate Geek

Trusted

  #801133 17-Apr-2013 17:50
Send private message

Far be it from me to argue with an expert , you mentioned amplifier , not me

Create new topic




News »

HP unveils new innovations for businesses adapting to rapidly evolving workstyles and workforces
Posted 17-Sep-2020 15:36


GoPro launches new HERO9 Black camera
Posted 17-Sep-2020 09:45


Telecommunications industry launches new 5G Facts website
Posted 17-Sep-2020 07:56


New Zealand ranks 3rd in world in GSMA index
Posted 15-Sep-2020 10:13


Trend Micro Security Suite adds web monitoring to prevent identity theft
Posted 14-Sep-2020 15:37


NVIDIA to acquire Arm for US$ 40 billion
Posted 14-Sep-2020 12:27


Epson launches its next gen A3+ colour EcoTank multi-function printer
Posted 10-Sep-2020 16:08


Sony launches three new native 4K SXRD home cinema projectors
Posted 9-Sep-2020 18:00


Catalyst Cloud brings Kubernetes-based open-source web hosting solution to market
Posted 9-Sep-2020 17:54


Verizon Connect eyes further growth in New Zealand
Posted 8-Sep-2020 09:26


PNY launches XLR8 gaming NVIDIA GeForce RTX 30 series powered by the all-new NVIDIA Ampere architecture
Posted 3-Sep-2020 16:39


NVIDIA delivers greatest-ever generational leap with GeForce RTX 30 Series GPUs
Posted 3-Sep-2020 16:17


Weta Digital advances visual effects and animation in the cloud with AWS
Posted 2-Sep-2020 17:09


Kiwrious lab-in-the-pocket kit designed for schoolchildren
Posted 28-Aug-2020 09:03


Fitbit introduces Sense, its most advanced health smartwatch
Posted 26-Aug-2020 10:14



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.