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.


55 posts

Master Geek


Topic # 87301 25-Jul-2011 11:40
Send private message

Moved into a recently built house - it has 2 TV jacks in the lounge and 4 others (one in each bedroom).
We have a Tivo in the lounge, and bought a 2nd Tivo for one of the other rooms. This is when we discovered the only TV jack connected to the aerial is the one in the lounge. After going in the roof I realised all the cables went to a box in the linen cupboard - but they are not connected to anything - just the one to the lounge was connected to the cable from the arial coming down. Anyway in the interim just got a 2 way splitter and this works. But I wondered, if I wanted to hook up all the rooms would I just get a 4 way (6 way?) splitter or can you get some sort of terminal box to put all the cables into. I'm not sure if the signal strength/quality to handle it though.

I also discovered that the phone jacks have a blue cable in them and it has cat5e written on it so I wondered if these cables do double duty as network and phone cables. I did not think the house was wired for ethernet as there are no ethernet jack points, but perhaps all that needs doing is to change the phone jack plates to ones with a phone jack and network jack and have these wired up? There is another box in the linen cupboard which has a large number of blue wire phone type connections. I think I'd need an electrician to make an changes to that - or is it just a case of attaching the blue cable to the network type wall plate?

Finally, the previous occupants had paid for an aerial company to put up an aerial and they installed a phase/array type aerial which is picking up a signal from Kaukau bounced off the hill ie it is not pointing at Kaukau. Thing is, I reakon a directional aerial pointed at Baxters knob should work as it looks pretty much line of sight aside from a bit of a tree and the neighbours house in the way - but would the aerial company not have looked at this option? I am in Brasenose Place in Tawa (Redwood)

Create new topic
283 posts

Ultimate Geek
+1 received by user: 4


  Reply # 498126 26-Jul-2011 17:03
Send private message

I'll have a go at this, but I'm no expert,  I've just learnt stuff as I have renovated my own place.

If you want tv reception to all rooms you will need to connect all the RG6 to an appropiate sized splitter.  If there isn't enough signal strength you can get distribution amplifiers.


Regarding the ethernet,  it sounds like you could get the house networked with a little bit of work.  What is the cat5e connected to in the linen cupboard?  To get ethernet to the various outlets in the house you would need to change the faceplates as you say to RJ45's and connect all 4 pairs and then in the linen cupboard you would need to connect all the cat5e to a patch panel and then either connect you router to the patch panel (if you only want 4 live ports) or to a switch which then connects to the router if you want more then 4 port lives See pic below 




  
I'm in Auckland so I can't help with the aerial direction question sorry.

2917 posts

Uber Geek
+1 received by user: 276


  Reply # 498128 26-Jul-2011 17:13
Send private message

As stated by cldlr76 you may need an amp if you want to split the TV signal to all 5 locations.
The second TV jack point in the lounge could be used either for Sky/Freeview Satellite or to back feed a signal from say a DVD player (using a modulator) to the bedrooms.

Depending on who wired the place you may have problems using the existing CAT5 cable for ethernet connections.
I've seen some crazy wiring, even in brand new houses, where some phone jacks have been star wired but then there are also some jack points that have been daisy chained off a star wired jack point.





6176 posts

Uber Geek
+1 received by user: 240

Trusted
Subscriber

  Reply # 498130 26-Jul-2011 17:16
Send private message

Hi Julian, I would assume (from where you are) that Baxters Knob is the logical choice if you can see it as opposed to KauKau, where is the currrent array pointing, as it may be if its anyway north (my guess is northwest) then its probably picking up Baxter anyway.

As for the network part, yes sounds like not a lot to upgrade your setup to support phone or data or both. I do this type of work from time to time, but currently am pretty busy for after hours stuff, but if you are still looking for someone to help in a months time then give me a PM.

Cyril



55 posts

Master Geek


  Reply # 498132 26-Jul-2011 17:32
Send private message

TV aerial is pointing East north east actually, but I'm going to borrow a directional Freeview UHF aerial and try aiming at Baxters Knob. At present the signal is stronger via the Kaukau frequencies because I guess theyve aimed it to pick up a reflected Kaukau signal with the phase array aerial

I think they have cabled things in a star type arrangement - just didnt go the whole hog to connect things up fully - so I think in a way its been done properly...

Cyrll - I am in no hurry so may take you up on the pm for potential job in a few months...   

6176 posts

Uber Geek
+1 received by user: 240

Trusted
Subscriber

  Reply # 498141 26-Jul-2011 17:53
Send private message

Hi, a phased array (aka broadside array) is a directional antenna, infact in some circles its considered superiour to a Yagi in both terms of directional properties and front to back ratio. I suggest before you discard it you point it at Baxters and see how it goes.

Cyril



55 posts

Master Geek


  Reply # 498525 27-Jul-2011 14:25
Send private message

I cant help but think the aerial people would have known what they were doing and that what I have in terms of aerial and orientation is the best I'm going to get. I'm a bit reluctant to change its direction in case I cant get it back to what it was...
The picture does break up at times - seems to be weather dependant. It helped when I "unticked" the Baxters Knob frequencies in the Tivo channels list, but can still be pretty bad on "bad" days.
Its just at our previous address in Franklyn Rd I had the DTS Engel aerial and it was pointed straight toward a tree/neigbours house with no line of sight of Kaukau and yet I got perfect reception.
BTW the signal strength is around the 87-90 mark - is that pretty good? The tivo doesnt have a signal quality meter though.

2966 posts

Uber Geek
+1 received by user: 1396


  Reply # 498556 27-Jul-2011 15:58
Send private message

The tivo doesnt have a signal quality meter though.


Yes it does, can't remember exactly where and I am not at home.  Go through settings..I think there is a "status" or similar screen..shows everything.

My set up sounds similar to yours.  Reception was fixed quickly and cheaply by an aerial booster plugged into one of the outlets.




Always be yourself, unless you can be Batman, then always be the Batman





55 posts

Master Geek


  Reply # 498592 27-Jul-2011 17:08
Send private message

Yeah I have been through the signal quality screen although what it then appears to describe is the signal strength....a previous box I had also had a quality reading...you can go in the diagnostics if you know how to interpret all the stuff in there.....

Any recommendation on the amplifier - I thought I read a masthead one is better than a inside one - shame no power point in the linen cupboard where the aerial cable goes to before being split around the house - means if I get an indoor one it will just be on one jack point (the main TV I guess)


So is a signal strenth in the 87-90 range a bit on the low side and what strength amplifier should I get. I see Jaycar have a $62 12db boost 2 way splitter amplifier....    

6176 posts

Uber Geek
+1 received by user: 240

Trusted
Subscriber

  Reply # 498596 27-Jul-2011 17:14
Send private message

Hi, get a remote powered one, this will have a power pack and injector that injects the DC (or 14V AC in some instaces) up the coax, the amp then goes on the mast or in the roof space, but ideally 2-3m max from the antenna. If you ensure that the splitter is organised to have power pass on the port where the injector is then it will get power to go.

You said you were nervous to re orientate the antenna for Baxters, I suggest before you put an amp in you would be well advised to do this

http://www.jaycar.co.nz/productView.asp?ID=LT3270&keywords=uhf+amplifier&form=KEYWORD

Cyril

283 posts

Ultimate Geek
+1 received by user: 4


  Reply # 498626 27-Jul-2011 18:09
Send private message

juliant:  shame no power point in the linen cupboard where the aerial cable goes to before being split around the house  



If you are going to want to make all your phone line ethernets you will need a power point in the linen cupboard for your switch and router.  


I was told the distribution amps are better than the masthead ones?  Is that not right? 


   
      

1916 posts

Uber Geek
+1 received by user: 125


  Reply # 498699 27-Jul-2011 21:16
Send private message



I was told the distribution amps are better than the masthead ones?  Is that not right?
 
      

Masthead amps are better than distribution amps in weak signal conditions. They perform different functions.
A masthead amp boosts the signal where it is weak at the antenna. A distribution amp does it's job at the other end of the co-ax and is not really meant to boost weak signals but only to boost a signal to multiple outlets.
Think of fishing. The bait goes on the hook, not the reel.

6176 posts

Uber Geek
+1 received by user: 240

Trusted
Subscriber

  Reply # 498728 27-Jul-2011 22:24
Send private message

Mast head amps typically have lower noise figures, but lower IP3 (headroom) and distribution amps the other way around.

If you have a very weak signal then a masthead amp is what you need, and because the signal is that much lower, then headroom is not going to be an issue but the amp gain will help overcome both the weak signal and distribution losses.

If the received signal is modestly good but needs boosting to overcome distribution losses then a distribution amp is fine.

Most decoders/idtv have quite deaf recievers, so to front them up with a low noise mast head amp when the received signal is very low is quite advantageous.

Cyril

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34


Enable doubles fibre broadband speeds for its most popular wholesale service in Christchurch
Posted 2-Jun-2018 20:07


All or Nothing: New Zealand All Blacks arrives on Amazon Prime Video
Posted 2-Jun-2018 16:21


Innovation Grant, High Tech Awards and new USA office for Kiwi tech company SwipedOn
Posted 1-Jun-2018 20:54


Commerce Commission warns Apple for misleading consumers about their rights
Posted 30-May-2018 13:15


IBM leads Call for Code to use cloud, data, AI, blockchain for natural disaster relief
Posted 25-May-2018 14:12


New FUJIFILM X-T100 aims to do better job than smartphones
Posted 24-May-2018 20:17


Stuff takes 100% ownership of Stuff Fibre
Posted 24-May-2018 19:41



Geekzone Live »

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



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.