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.




1 post

Wannabe Geek


Topic # 24968 8-Aug-2008 08:57
Send private message

Hi All, 1st time poster ;)

Last night i set up my PC with a Avermedia speedy pci-e.

Installed the software fine, scanned channels using the crappy supplied needle aerial using AVERTV and MediaPortal, picked up every chan in chch using DVB-T.

my rig is a Vista SP1, AM2 4800x2, 4gb ram, 8600gt, PDVD Ultra .264 codec. (set to use HW decoding in MP)

I think i must of been lucky, it really was painless, i got this amazing looking picture straight off the bat! But, it was as choppy as hell, like every 1-2 secs a freeze for half a second. I think its due to reception quality.

For sh!ts and giggles i tried the analog side of the tuner, found most channels (no prime and sky scambled was barely legiable), quality was terribad, like snowy and liney, nowhere near acceptable, I played around with my aerial placement and it got a little better. Back to HD and no picture, move aerial back to where it was and i get HD picture back.


So my real question is, Is a bad reception for HD shown as a bad picture quality like analog, or does it still show it as perfect picture, but just choppy if you have a bad reception? I had a look through old posts, but i just couldnt pinpoint any thing that said "These are the symptoms of a poor signal for DVB-T"

Could someone confirm what a poor signal quality/strength results in for DVB-T.

Is there a piece of software i can run that will let me test sig quality/strength as  I move my aerial? I am going to setup a external aerial over the weekend, but i dont want to be going up & down ladders 50 times to change alignment If i can do it just once if i have my wife watching a screen/meter thing on my computer.

Thanks to anyone that can answer these for me, im new to the game and im sure its a simple answer, but i just wanted clarification before i go and buy external UHF aerials. I was looking at a "Yagi-style 12 Element UHF TV Antenna" I live in a clear LOS to Sugarloaf and can get my aerial to about 10m up, would this aerial suffice?

Cheers, G

Create new topic
1677 posts

Uber Geek
+1 received by user: 7

Trusted

  Reply # 155158 8-Aug-2008 10:57
Send private message

yes, with digital the signal is either on or off (ie transmitted with many 1's and 0's).  If you have bad reception, the picture will drop out lots.

Unless you live really close to the TV tower, an outside aerial is a must.  Will save you hours of frustration.  If you have bad reception of Prime, it's likely Freeview|HD won't look flash.

6041 posts

Uber Geek
+1 received by user: 159

Trusted

  Reply # 155180 8-Aug-2008 12:24
Send private message

Hi, I do recommend an external antenna, it removes any effects from moving bodies and creates a more stable solution. If you have clear site of Sugarloaf and are obviously in the ChCh metro area not miles out on the plains.

Then a straight forward UHF Yagi like the DSE L4711 which I assume you are refering to is just fine. As for how high you need to place it, unless there is some nearby building in the way then just a 0.5-1m mast off the barge board is all that is needed, once again, if the antenna has a clear sight, all should be good. As Alistar said, if you get reasonable prime reception (not too noisey with speckles) then you should not have any DTT issues.

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 »

Mobile market competition issues ComCom should watch
Posted 18-Dec-2017 10:52


New Zealand government to create digital advisory group
Posted 16-Dec-2017 08:47


Australia datum changes means whole country moving 1.8 metres north-east
Posted 16-Dec-2017 08:39


UAV Traffic Management Trial launching today in New Zealand
Posted 12-Dec-2017 16:06


UFB connections pass 460,000
Posted 11-Dec-2017 11:26


The Warehouse Group to adopt IBM Cloud to support digital transformation
Posted 11-Dec-2017 11:22


Dimension Data peeks into digital business 2018
Posted 11-Dec-2017 10:55


2018 Cyber Security Predictions
Posted 7-Dec-2017 14:55


Global Govtech Accelerator to drive public sector innovation in Wellington
Posted 7-Dec-2017 11:21


Stuff Pix media strategy a new direction
Posted 7-Dec-2017 09:37


Digital transformation is dead
Posted 7-Dec-2017 09:31


Fake news and cyber security
Posted 7-Dec-2017 09:27


Dimension Data New Zealand strengthens cybersecurity practice
Posted 5-Dec-2017 20:27


Epson NZ launches new Expression Premium Photo range
Posted 5-Dec-2017 20:26


Eventbrite and Twickets launch integration partnership in Australia and New Zealand
Posted 5-Dec-2017 20:23



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.