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-   -   dtt reception advice needed (http://www.homecinemabanter.com/showthread.php?t=50959)

[email protected] April 23rd 07 01:25 PM

dtt reception advice needed
 
Hi all

Need some help with DTT reception. I'm using two Hauppauge PCI DVB-T
cards in my PC, and the reception has always been unacceptably bad.

I am 16 miles from Rowridge TX with clear line-of-sight.

My first approach for DTT was a set-top aerial pointing towards
Rowridge from a high window, along with a signal booster. This worked
mostly OK until neighbours installed a conservatory with metal frames,
which somehow messed DTT reception up completely (and also FM
reception from portables throughout the house).

I then managed to convince my landlord to install a proper rooftop
aerial.

This aerial provides flawless reception when connected to a regular
DTT box (also tried connecting to a Topfield TF5800, using aerial
loopthrough for the second tuner -- this was fine too).

However, when connected to my two DVB-T cards, the reception is
*worse* than when using the set-top aerial. Breakups happen every
minute or so, seems to affect all muxes equally.

The aerial is connected to the PC via a few extra metres of CT100,
then a cheap Y-type aerial splitter from Maplins, and a pair of cheap,
30cm aerial leads.

I have tried attaching a signal booster to this setup, which did not
help matters. I have also tried a cheap inline attenuator,
attenuating slightly helps some muxes but makes others worse.

Any more ideas about what else I should try would be appreciated.


Malcolm H April 23rd 07 01:36 PM

dtt reception advice needed
 

wrote in message
s.com...
Hi all

Need some help with DTT reception. I'm using two Hauppauge PCI DVB-T
cards in my PC, and the reception has always been unacceptably bad.

I am 16 miles from Rowridge TX with clear line-of-sight.

My first approach for DTT was a set-top aerial pointing towards
Rowridge from a high window, along with a signal booster. This worked
mostly OK until neighbours installed a conservatory with metal frames,
which somehow messed DTT reception up completely (and also FM
reception from portables throughout the house).

I then managed to convince my landlord to install a proper rooftop
aerial.

This aerial provides flawless reception when connected to a regular
DTT box (also tried connecting to a Topfield TF5800, using aerial
loopthrough for the second tuner -- this was fine too).

However, when connected to my two DVB-T cards, the reception is
*worse* than when using the set-top aerial. Breakups happen every
minute or so, seems to affect all muxes equally.

The aerial is connected to the PC via a few extra metres of CT100,
then a cheap Y-type aerial splitter from Maplins, and a pair of cheap,
30cm aerial leads.

I have tried attaching a signal booster to this setup, which did not
help matters. I have also tried a cheap inline attenuator,
attenuating slightly helps some muxes but makes others worse.

Any more ideas about what else I should try would be appreciated.


What happens when you connect the good external aerial direcly to the DVB-T
card(s) without the cheap splitter?
How come you have TWO DVB-T cards? How are you splitting the aerial feed to
them? Have you tried connecting the external aerial to directly to just ONE
DVB-T card with no obstacles or obstructions in the way?



Brian Gregory [UK] April 23rd 07 08:35 PM

dtt reception advice needed
 
Hauppauge has a very cost effective approach to fixing bugs -- they don't.

--

Brian Gregory. (In the UK)

To email me remove the letter vee.



Paul Woodsford April 24th 07 12:07 AM

dtt reception advice needed
 
"Brian Gregory [UK]" wrote in message
...
Hauppauge has a very cost effective approach to fixing bugs -- they don't.

--

Brian Gregory. (In the UK)

To email me remove the letter vee.


Well seeing as I have no problems with my Hauppage pci Nova T card that
suits me just fine.

Any way to the problem in hand.
1. Take a straight aerial connection to 1 card only, in fact I would remove
the second card until you have 1 card working properly.
2. Make sure you have the latest drivers installed. Use the software from
Hauppage to remove the old drivers if you have to update them.
3. Concentrate on getting just 1 card working properly first.

By the way, why 2 cards in the PC. Both will be using the same drivers,
software and system resources. I presume you have a very powerful PC with at
least 1GB of RAM.

--
Paul Woodsford
Remove NOSPAM to reply.



[email protected] April 24th 07 10:53 AM

dtt reception advice needed
 
Well seeing as I have no problems with my Hauppage pci Nova T card that
suits me just fine.

Any way to the problem in hand.
1. Take a straight aerial connection to 1 card only, in fact I would remove
the second card until you have 1 card working properly.
2. Make sure you have the latest drivers installed. Use the software from
Hauppage to remove the old drivers if you have to update them.


I'm using their BDA drivers.

3. Concentrate on getting just 1 card working properly first.


Yes I will try this.

By the way, why 2 cards in the PC.


So I can record two channels at once.

Both will be using the same drivers,


No, one is a 909 model and the other is a 90002 model.

software and system resources. I presume you have a very powerful PC with at


~2GHz, can't quite remember

least 1GB of RAM.


1GB yes. Thanks for the help.



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