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73 posts

Master Geek


Topic # 23840 9-Jul-2008 23:01
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My outdoor arial is quite misaligned, and I'm going to realign it to get better signal quality.

Is there any good and simple programs to use to show the dvb-t signal strength from my Asus p7131 dvb-t tuner? Anything that shows the signal strength on the fly would be good, but something that can show for a particular mux would be perfect.

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  Reply # 145844 9-Jul-2008 23:55
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I use analogue tv transmission and turned it in prime was clear.



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Master Geek


  Reply # 145852 10-Jul-2008 00:27
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I tried that the first time. Prime was crystal clear, but freeview is almost unwatchable.

 
 
 
 


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  Reply # 145890 10-Jul-2008 07:47
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talsemgeest: I tried that the first time. Prime was crystal clear, but freeview is almost unwatchable.


Why was it unwatchable?
It either works perfectly or not at all.

I think the problem is the lack of hardware acceleration. What graphics card do you have?




CPU: Intel 3770k| RAM: F3-2400C10D-16GTX G.Skill Trident X |MB:  Gigabyte Z77X-UD5H-WB | GFX: GV-N660OC-2GD gv-n660oc-2gd GeForce GTX 660 | Monitor: Qnix 27" 2560x1440

 

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Master Geek


  Reply # 146002 10-Jul-2008 10:48
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I definitely have hardware accelleration. I just bought myself a Nvidia 9600GT, and cpu usage only goes up about 5% when watching tv (when it does work).

Tv is like sky when it is about to go into rain fade, going pixelated, sound dropping out, screen going green etc...

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  Reply # 146011 10-Jul-2008 11:10
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You using powerdvd for hardware acceleration? or another codec?




CPU: Intel 3770k| RAM: F3-2400C10D-16GTX G.Skill Trident X |MB:  Gigabyte Z77X-UD5H-WB | GFX: GV-N660OC-2GD gv-n660oc-2gd GeForce GTX 660 | Monitor: Qnix 27" 2560x1440

 

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Master Geek


  Reply # 146025 10-Jul-2008 11:38
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Powerdvd 8 Ultra deluxe H.264 codec. I have evrything set up right on my end, it is just the antannae that is the problem.

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Master Geek
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  Reply # 146299 10-Jul-2008 18:48
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This has been covered in another thread.  Here's what I cam up with;

I found one eventually.  Dos based and all command line but does seem to work.  It's at
http://nate.dynalias.net/ScanChannelsBDA/ScanChannelsBDA.html#SC2007

Run it and add channels (using option 1) as follows
538000
then at the next prompt enter "8" Mbs
press 1 to add channel again
570000
8 Mbs again
press 1 to add channel again
666000
8 Mbs

These are the channels for Waitara, you can easily enter your local channels from the sticky topic "NZ Freeview HD Guide" in this forum.

Then run option 2 "Generate Channels.ini"


I got a resulting output on screen;

# locked 538000, 8 signal locked = Y present = Y stength = 51 quality = -100

Network_1("Freeview Limited", 0, 8, 1)
#Alternate frequencies
#Network_1("Freeview Limited", 538000, 8, 1)
#Network_1("Freeview Limited", 530000, 8, 1)

# locked 570000, 8 signal locked = Y present = Y stength = 62 quality = 10

Network_2("Freeview Limited", 0, 8, 1)
#Alternate frequencies
#Network_2("Freeview Limited", 570000, 8, 1)
#Network_2("Freeview Limited", 562000, 8, 1)
#Network_2("Freeview Limited", 690000, 8, 1)
#Network_2("Freeview Limited", 714000, 8, 1)
#Network_2("Freeview Limited", 554000, 8, 1)
#Network_2("Freeview Limited", 706000, 8, 1)
#Network_2("Freeview Limited", 730000, 8, 1)
#Network_2("Freeview Limited", 698000, 8, 1)
#Network_2("Freeview Limited", 666000, 8, 1)

# locked 666000, 8 signal locked = Y present = Y stength = 58 quality = 10

Network_3("Freeview Limited", 0, 8, 1)
#Alternate frequencies
#Network_3("Freeview Limited", 666000, 8, 1)
#Network_3("Freeview Limited", 626000, 8, 1)
#Network_3("Freeview Limited", 706000, 8, 1)
#Network_3("Freeview Limited", 682000, 8, 1)
#Network_3("Freeview Limited", 642000, 8, 1)
#Network_3("Freeview Limited", 650000, 8, 1)
#Network_3("Freeview Limited", 778000, 8, 1)
#Network_3("Freeview Limited", 762000, 8, 1)
#Network_3("Freeview Limited", 730000, 8, 1)
  Program_ 1("Radio NZ National"   , 2000,    0,   620,  220)    # LCN=50
  Program_ 2("Radio NZ Concert"    , 2001,    0,   621,  221)    # LCN=51

If you use Option 4 you can enter a specific frequency, like 538,000 above and the * Mbs bandwidth and then see it displaying signal quality and strength as a new line every second.  You can watch this as you adjust your antenna, boosters etc and see the effect in real time.

I noticed it starts at about quality 10 and then goes to 40, then 60 and holds there.  Seems it takes a second or two for the Nova T to lock in on a frequency.

So clunky but it works!




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Master Geek


  Reply # 146396 10-Jul-2008 21:07
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Thank you very much my friend, I think this is exactly what I am looking for.

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Master Geek
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  Reply # 147921 14-Jul-2008 22:11
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Here's my experiences with ScanChannelsBDA_UK: http://www.geekzone.co.nz/forums.asp?forumid=83&topicid=22349

I liked the graph that this utility produced in real-time, only problem is I'm not sure it will work with a Asus DVT-T?

At any rate the utility can be found here: http://www.wintvcd.co.uk/tools/ScanChannelsBDA_UK.exe



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Master Geek


  Reply # 147932 14-Jul-2008 22:47
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That is even better, and perfect for my purposes. It is working brilliantly with my card, and seems very accurate.

Thank you very much for your help.

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