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.




14665 posts

Uber Geek
+1 received by user: 1969


Topic # 247871 27-Feb-2019 21:11
Send private message quote this post

So on the house plans of a new build, we put a suggested location where we wanted the TV aerial located so it would be a the back of the buidling. That would obviously be subject to there being a signal in that location, and we expected that the electrican would check to make sure it is suitable. The electrician did install a wire into this location after we confirmed with them  that is were we preferred it to go. However when they came to install the aerial, they said that there wasn't a strong enough signal. They said the only option looked to be moving the aerial to the front entrance of the building which would be the first thing you see when you see the building.The suggested location is in clear sight to the transmitter, so no building blocking it, but they say that there must be trees in the distance or around it blocking the signal. I was wondering if using another aerial may help.

 

The current aerial that was tried was a Triple folding Structure one as shown at http://www.freeviewshop.co.nz/information/technical/aerial-guide-i-49.html which is supposed to be for fringe areas , which gives 40% strength. they say they need at least 60%.  If they move the aerial closer to the front of the building they can get enough strength.  However we have have asked them to try a X-Type Magna Phased array and an amplified one, but they doubt that it will make a difference. There are also Active flat panel, although not sure who sells those. They would be more acceptable at the front of the building, although the wiring would still be in the the wrong plan, and they have to somehow get the wiring across the roof.

 

Anyone know of any solutions that can increase the strength, or whether the X-Type Magna Phased array should work?. Would increasing the pole height help. It is currently going to be on a parapet, so the aerial will be above the roof and parapet cap anyway.


Create new topic
784 posts

Ultimate Geek
+1 received by user: 96

Trusted

  Reply # 2188491 27-Feb-2019 22:14
Send private message quote this post

First of all I’ve never known an electrician to have any equipment for testing a signal, and if he did then you wouldn’t be asking the questions about different aerials and different locations as he would obviously then know the answer.
Further, if you have line of sight to the transmitter you certainly do not need a large antenna like you mentioned.

Sounds like the electrician is just guessing and you should get someone who knows what they are doing

784 posts

Ultimate Geek
+1 received by user: 96

Trusted

  Reply # 2188492 27-Feb-2019 22:17
Send private message quote this post

Also, if you have line of sight to the transmitter how can there be trees blocking it surely that would be obvious.

 
 
 
 




14665 posts

Uber Geek
+1 received by user: 1969


  Reply # 2188495 27-Feb-2019 22:29
Send private message quote this post

It's line of sight in plan to the transmitter location, so the building isn't blocking it. However in the distance there could be a smallish tree on the verge owned by the council. But moving it about 6m closer to that tree, the signal gets stronger. They have about 6 m sideways they would work with as well.  It is difficult to tell and they don't know themselves why the signal is better. The electrican appears to be subcontracting to a specialist TV installer company to install the actual aerial, and they are the ones who are having trouble installing it in the location the electrician  installed the wire. But the electrician did all the prewiring etc, and should have been working with their installer to make sure it was wired into a suitable location and get a suitable signal IMO. Otherwise it is all just guesswork.


785 posts

Ultimate Geek
+1 received by user: 236


  Reply # 2188496 27-Feb-2019 22:33
4 people support this post
Send private message quote this post

 

 

Do yourself a favour and pay for a decent aerial installer as they have the proper tools and experience.

 

John

 

PS I used to install TV aerials for a living. ( I also used to install radio & TV transmitters too )





I know enough to be dangerous




14665 posts

Uber Geek
+1 received by user: 1969


  Reply # 2188497 27-Feb-2019 22:36
Send private message quote this post

SATTV:

 

 

 

Do yourself a favour and pay for a decent aerial installer as they have the proper tools and experience.

 

John

 

PS I used to install TV aerials for a living. ( I also used to install radio & TV transmitters too )

 

 

Thanks. They seem to be using a proper specialist aerial installer now, who also does networking. When you did it, did you liaise with the electrican doing the coaxial install, to make sure they got the aerial wiring coming out in the right place? Or did you also do the prewiring of all the TV cable in the building at the wiring stage?


272 posts

Ultimate Geek
+1 received by user: 111


  Reply # 2188542 28-Feb-2019 00:13
Send private message quote this post

mattwnz:

 

SATTV:

 

 

 

Do yourself a favour and pay for a decent aerial installer as they have the proper tools and experience.

 

John

 

PS I used to install TV aerials for a living. ( I also used to install radio & TV transmitters too )

 

 

Thanks. They seem to be using a proper specialist aerial installer now, who also does networking. When you did it, did you liaise with the electrican doing the coaxial install, to make sure they got the aerial wiring coming out in the right place? Or did you also do the prewiring of all the TV cable in the building at the wiring stage?

 

 

I believe you could get Freeview using a Kodi box or something similar that uses the internet to stream freeview


784 posts

Ultimate Geek
+1 received by user: 96

Trusted

  Reply # 2188567 28-Feb-2019 07:34
Send private message quote this post

mattwnz:

SATTV:


 


Do yourself a favour and pay for a decent aerial installer as they have the proper tools and experience.


John


PS I used to install TV aerials for a living. ( I also used to install radio & TV transmitters too )





Thanks. They seem to be using a proper specialist aerial installer now, who also does networking. When you did it, did you liaise with the electrican doing the coaxial install, to make sure they got the aerial wiring coming out in the right place? Or did you also do the prewiring of all the TV cable in the building at the wiring stage?



They don’t tend to’ liaise ‘, and only ever put the cable outside if its prohibitive to do after the house is finished.
They tend to leave the cables coiled up somewhere in the roof space.
Small trees in the distance are normally not an issue, but regardless, anyone with a Spectrum Analsyer can tell you where it can or can’t go.

785 posts

Ultimate Geek
+1 received by user: 236


  Reply # 2188569 28-Feb-2019 07:35
Send private message quote this post

mattwnz:

 

SATTV:

 

 

 

Do yourself a favour and pay for a decent aerial installer as they have the proper tools and experience.

 

John

 

PS I used to install TV aerials for a living. ( I also used to install radio & TV transmitters too )

 

 

Thanks. They seem to be using a proper specialist aerial installer now, who also does networking. When you did it, did you liaise with the electrican doing the coaxial install, to make sure they got the aerial wiring coming out in the right place? Or did you also do the prewiring of all the TV cable in the building at the wiring stage?

 

 

Both,

 

If it was a large installation we would run it, if it was a one off we would work with what the electrician had done or sometime they would run in like a phone line and daisy chain it so we would have to re-run it to a star point or just have one tv.

 

The amount of work we would have to do from reworking electricians was quite high.

 

Some electricians were quite good and we would only come in if there was a new service coming in like TV3 / TV4, Sky ( you had to pay for your UHF install then ), Juice, TAB etc.

 

John





I know enough to be dangerous


3683 posts

Uber Geek
+1 received by user: 1092


  Reply # 2188571 28-Feb-2019 07:39
Send private message quote this post

Brunzy: anyone with a Spectrum Analsyer can tell you where it can or can’t go.

 

 

 

This,

 

40% and 60% are not appropriate measures to determine where to place you aerial , ask them to tell what the actual signal strengths are,

 

 


784 posts

Ultimate Geek
+1 received by user: 96

Trusted

  Reply # 2188672 28-Feb-2019 10:30
Send private message quote this post

mattwnz:

It is difficult to tell and they don't know themselves why the signal is better.



In that case you need to get someone who does know.

Create new topic


Donate via Givealittle


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 »

Amazon introduces new Kindle with adjustable front light
Posted 21-Mar-2019 20:14


A call from the companies providing internet access for the great majority of New Zealanders, to the companies with the greatest influence over social media content
Posted 19-Mar-2019 15:21


Two e-scooter companies selected for Wellington trial
Posted 15-Mar-2019 17:33


GeForce GTX 1660 available now
Posted 15-Mar-2019 08:47


Artificial Intelligence to double the rate of innovation in New Zealand by 2021
Posted 13-Mar-2019 14:47


LG demonstrates smart home concepts at LG InnoFest
Posted 13-Mar-2019 14:45


New Zealanders buying more expensive smartphones
Posted 11-Mar-2019 09:52


2degrees Offers Amazon Prime Video to Broadband Customers
Posted 8-Mar-2019 14:10


D-Link ANZ launches D-Fend AC2600 Wi-Fi Router Protected by McAfee
Posted 7-Mar-2019 11:09


Slingshot commissions celebrities to design new modems
Posted 5-Mar-2019 08:58


Symantec Annual Threat Report reveals more ambitious, destructive and stealthy attacks
Posted 28-Feb-2019 10:14


FUJIFILM launches high performing X-T30
Posted 28-Feb-2019 09:40


Netflix is killing content piracy says research
Posted 28-Feb-2019 09:33


Trend Micro finds shifting threats require kiwis to rethink security priorities
Posted 28-Feb-2019 09:27


Mainfreight uses Spark IoT Asset Tracking service
Posted 28-Feb-2019 09:25



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.