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nedkelly
17-03-2010, 07:14 PM
I have decided I want to get a UHF aerial to use with my tv that has a built in freeview tuner, but I am not really sure what I am looking for. Any help?

Speedy Gonzales
17-03-2010, 07:17 PM
One of these (http://search.dse.co.nz/search?w=uhf+aerial&sessionid=4ba074b500f4e40c273fc0a87f3b0716)

Trev
17-03-2010, 07:18 PM
One like this (http://www.dse.co.nz/dse.shop/4ba074880125fc0a2740c0a87f3b06e3/Product/View/L4735) will do the job.
:)

nedkelly
17-03-2010, 07:28 PM
So just any aerial will do? Saw there are aerials with different numbers of elements. Freeview says a high UHF aerial will work, how high do you think they mean by high?

prefect
17-03-2010, 08:20 PM
Ned what sort of aerial do you have at the moment.
I have a DSE combo VHF/UHF quite old it works fine. Turning it 360 makes no difference to picture quality although I sight it with the big aerial on the Waitaiks

Speedy Gonzales
17-03-2010, 08:22 PM
Just as long as its on the roof it'll work

nedkelly
17-03-2010, 08:25 PM
I think I dont have a combo one. And of course not a uhf so I guess the other one

prefect
17-03-2010, 08:36 PM
Heres one on North shore from TM
http://www.trademe.co.nz/Electronics-photography/TVs/Cables-aerials/auction-277779003.htm

Trev
17-03-2010, 09:32 PM
Hey Ned the one in my link says it all.

Freeview|HD approved antenna pack with mounting bracket and cable. suitable for free to air UHF channels and digital terrestrial broadcast for Freeview|HD. This pack is suitable for prime central areas
Don't you read.
:)

nedkelly
17-03-2010, 09:40 PM
yeah but I was wondering if I am in a Prime central area

Speedy Gonzales
17-03-2010, 09:42 PM
Well tune it in you'll soon find out. You'll probably still get a picture

Trev
17-03-2010, 09:46 PM
This May Help (http://www.freeviewnz.tv/all_about_freeview/coverage):)

nedkelly
18-03-2010, 07:36 AM
I did that. Please look at attached screenshot in post #4

Trev
18-03-2010, 08:23 AM
Ok do as Speedy says. Mount it as high as you can.
:)

R2x1
18-03-2010, 08:45 AM
yeah but I was wondering if I am in a Prime central area
You are quite distant, and in a somewhat tricky reception area so you will need a fairly high antenna as well as one with quite a few elements. Have a look at your neighbours' antennas, check who gets a good picture and try for something in the middle of the pack as regards the number of elements among those with a good picture. Some of the smaller ones will only give a good picture on favourable days, while the ones with a thicket of elements may only illustrate that somebody encountered a very motivated salesman.

nedkelly
18-03-2010, 08:48 AM
would a 3 storey house be tall enough?

Trev
18-03-2010, 09:01 AM
Do you know which direction the transmitter is and can you see it from the top of your 3 storey house and if you can you should be alright. Do any of your neighbors have Freeview HD and what is there reception like.
:)

nedkelly
18-03-2010, 09:16 AM
I have no idea about the transmitter. I dont really have that much to do with my neighbours.

Agent_24
18-03-2010, 09:22 AM
You could try building the coat-hanger antenna

http://blog.makezine.com/archive/2009/01/maker_workshop_dtv_antenna_steadyca.html

Sweep
18-03-2010, 09:30 AM
I have no idea about the transmitter. I dont really have that much to do with my neighbours.

How about actually going outside and looking at what other people have and the direction most UHF aerials are pointing.

nedkelly
18-03-2010, 09:40 AM
ok the one I can see is pointing towards the direction of the Barrier.

Sweep
18-03-2010, 09:45 AM
I was hoping you could go outside and look at more than one.

nedkelly
18-03-2010, 09:49 AM
I can only see one UHF aerial.

Trev
18-03-2010, 11:41 AM
I think you need a professional aerial installer to do the job for you from the limited knowledge you have.
:)

nedkelly
18-03-2010, 12:00 PM
yeah one area I am not good in.

Sweep
18-03-2010, 12:31 PM
You have no need to be proficient in everything.

I'd hate to do a brain transplant on myself even though I may need one according to some opinions.

prefect
18-03-2010, 12:42 PM
You live in yuppie central golf harbor the most electronic techy place in NZ. Piece of piss, get a second hand uhf aerial from tm and a pole, cable and 2 connectors from dse and stick the ******* aerial on the roof pointing towards the skytower.

Lawrence
18-03-2010, 01:00 PM
Try here for info http://www.freeviewshop.co.nz/ ,Installed Freeview 18 months ago myself but had to get a Aeriel installer to sort problems out like replace cable with RG6 and get the correct direction with a strength meter (I think) ,found I had signal bounce,had to point the aeriel 15dg away from correct direction.
So you may be lucky doing yourself though if you check around your neighbourhood and look at someones else's install ,the more stuff you have (sky etc) the more complications there will be

nedkelly
18-03-2010, 02:02 PM
yeah Lawrence I had a look around my neighborhood from my deck and can only see one UHF aerial and it is pointing towards Great Barrier's direction.

Sweep
18-03-2010, 02:08 PM
And are you or the neighbour in direct line of sight or are hills in the way from transmitters or repeaters?

Getting info is like getting blood out of a stone sometimes.

nedkelly
18-03-2010, 02:33 PM
Im sorry I have no idea where the transmitter is, I could draw on a google map the direction the transmitter down the road is facing, and I am a lot higher up than them.

nedkelly
18-03-2010, 02:50 PM
oops meant aerial down the road not transmitter

Trev
18-03-2010, 03:39 PM
This (http://www.lincrad.co.nz/transmittersites.html) should help locate a transmitter tower near you. Just click on your area.
:)

nedkelly
18-03-2010, 03:49 PM
Ok there is one at the beginning of the peninsula, does it matter that it is for Family TV?

Billy T
18-03-2010, 10:02 PM
The main transmitter is on the Waitakeres at Waiatarua, which is due SSW from Gulf Harbour. The Sky Tower is not a full power site and has only a few channels so you'll have aim for the main transmitter. The local transmitter is one channel only

You should be able to get an idea of what antenna size and direction is needed by just driving around a few streets and looking at the "District Average". The element count for UHF antennas is a bit different to VHF, every cruciform element (4 lobes) counts as 4, so a 43 element only counts up to 9 of those (36) and the other 7 are the stuff that come after them. You may need a 90-something element jobbie.

If you are not sure, get it installed for you, wiring up coax and fitting plugs etc is not as simple as it looks, and if you don't waterproof properly in a marine environment the cable will corrode out in no time.

Cheers

Billy 8-{)

Sweep
18-03-2010, 10:10 PM
All of which is good advice. I had tried to get nedkelly to actually go outside and look in my earlier posts.

nedkelly
18-03-2010, 11:32 PM
Thanks Billy T Might go for a walk tomorrow and see.
I did go outside and look Sweep, but could only see 1 uhf aerial.

R2x1
19-03-2010, 08:14 AM
This may indicate that you are not going to get a useful signal in your area.

prefect
19-03-2010, 08:39 AM
Ned are you in a dip at Golf Harbor can you see the sea? be blardy suprised if you cant get a freeview signal on uhf there, if you cant why dont use a sat dish to get freeview?

nedkelly
19-03-2010, 08:43 AM
I am on a hill and on a cliffside property, because my tv has a built in Freeview tuner.

prefect
19-03-2010, 08:45 AM
Which way is the property facing is there a clear sightline to the east?

nedkelly
19-03-2010, 08:52 AM
I face up towards Kawau

Trev
19-03-2010, 09:09 AM
Double post.
:)

Trev
19-03-2010, 09:14 AM
Just put it up and have it pointing the same way as your other aerial. Which way is it pointing, east, south etc. Can you see the Waitakeres from your place and the Waiatarua transmitter as this is where your UHF aerial probably needs to be pointing.
:)

nedkelly
19-03-2010, 09:17 AM
looks NNE

prefect
19-03-2010, 09:22 AM
Just put it up and have it pointing the same way as your other aerial. Which way is it pointing, east, south etc. Can you see the Waitakeres from your place and the Waiatarua transmitter as this is where your UHF aerial probably needs to be pointing.
:)

The range of hills above Albany would block out line of sight to golf harbor.
If its any consolation Ned I went through the same have I got the right aerial where do I point process to get uhf freeview as you did.

CYaBro
19-03-2010, 09:30 AM
Not supposed to do this but I have a 93 element UHF aerial that has never been used if you want to buy.
I paid $100 from DSE about 2 years ago but never got around to putting it up.

nedkelly
19-03-2010, 09:42 AM
Thanks for the offer CYaBro, I will keep that in mind. But first I will have to redo some wiring.

John H
19-03-2010, 12:14 PM
We are in North Canterbury (not much help to you I know in terms of where to point your aerial!). However, no-one else has recommended a Gizmo aerial. There is one on this house which we moved to last August.

The Gizmo is a fraction of the size of what we used to have on our old house (in effect, we had two aerials, one attached above the other on the pole, one being VHF and the other UHF). As far as I am concerned, the Gizmo works just as well, even though we are now 25kms further away from the transmitter than we were. Our TV installer said he had never seen a reception problem in Canterbury with a Gizmo.

You can check them out here: http://www.lincrad.co.nz/faq.php

I have no idea of the price because the Gizmo was here when we bought the house. However, it gives a great signal for Prime (and Māori TV if that is also UHF), and presents a far lower profile to the nor west winds than the double layer thing we had at our ChCh house, which is an additional advantage.

Billy T
19-03-2010, 04:38 PM
No-one else has recommended a Gizmo aerial. There is one on this house which we moved to last August.

The Gizmo is a low gain antenna suitable for prime signal areas only. For technical reasons (error correction etc) It will probably work better on digital signals than on analogue but it still has to drag enough signal out of the air to provide a good picture.

At Gulf Harbour you will probably need a 43 or 93 element. UHF signals are also subject to attenuation by rain and fog etc, as well as by refraction and layering effects which can make the signal strength vary day by day. What works in summer may be ratshit in winter so don't skimp on antenna or cable quality. Doing it twice is more expensive than doing it right first time.

Cheers

Billy 8-{)