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

107 posts

Master Geek

Topic # 30755 20-Feb-2009 09:44
Send private message

Hi Guys,

I have recently moved house in Lower Hutt and just set up my aerial in the roof to receive freeview.

I am pointing at the Fitzherbert (infill) transmitter and get the following quality levels according to the program scanchannelBDA.exe

714000 - 50%
730000 - 65%
762000 - 100%

Does anyone know what the min quality level should be to avoid frame freezes? Its probably unlikely I can get 100% on all 3 channels but Im sure I can increase the 50% mark but is it worth another trip to the roof or is what I have fine?


Create new topic
6439 posts

Uber Geek
+1 received by user: 379


  Reply # 196893 20-Feb-2009 12:12
Send private message

Hi, the % reading from STB quality meters is non calibrated so only a relative guide, how it may really relate is dependant on how its coded, but one could possibly assume 50% is 3dB less C/N than 100%.

It could be your antenna has a lowend drop off, or most likely I find adjusting the aim of the antenna can dramatcially effect the slope across the muxs, this is where a proper Feildstrength meter is invaluable. Is you antenna pointing directly at Haywards, site, this would be a good start.

Does the box also produce BER rates, is the post viterbi decode BER pretty much 0 or E-6 or better on the poor muxs if so then probably not too much to worry about.

At the end of the day if its not pixeling then its most likely fine.


1090 posts

Uber Geek
+1 received by user: 182

  Reply # 197377 22-Feb-2009 23:00
Send private message

Not sure about the STBs out there but if you're using an HTPC you can get some strange results that might not be obviously a signal problem but ultimately is.


107 posts

Master Geek

  Reply # 197379 22-Feb-2009 23:03
Send private message

thanks for the help.

No stutter over the weekend so Im going to leave it as is.

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:

Geekzone Live »

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

Geekzone Live »

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.