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No ITV/C4/five, Yes all the rest



 
 
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  #1  
Old October 22nd 04, 03:50 PM
Default
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Default No ITV/C4/five, Yes all the rest

I am trying to set up freeview and have managed to pick up most of the
channels except the QAM64 ones: ITV/C4 and five.

What do I need to get these missing channels?

I already purchased a high gain wide band external aerial from B&Q which I
tried running indoors. But as I later discovered I am able to receive the
rest of the channels with just one element of the aerial indoors (the one
connected to the coax and straight into the STB). However the QAM64 signals
are there but extremely weak.

Is this a situation where a booster might come in handy? Recommendations?

BTW to clarify, if I try connecting the aerial with all the elements on the
dipole, I don't seem to be able to accomplish any noticeable gain, so...


  #2  
Old October 22nd 04, 04:13 PM
Max Demian
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Default

"Default" wrote in message
...
I am trying to set up freeview and have managed to pick up most of the
channels except the QAM64 ones: ITV/C4 and five.

What do I need to get these missing channels?

I already purchased a high gain wide band external aerial from B&Q which I
tried running indoors. But as I later discovered I am able to receive the
rest of the channels with just one element of the aerial indoors (the one
connected to the coax and straight into the STB). However the QAM64

signals
are there but extremely weak.

Is this a situation where a booster might come in handy? Recommendations?

BTW to clarify, if I try connecting the aerial with all the elements on

the
dipole, I don't seem to be able to accomplish any noticeable gain, so...


Have you checked here http://www.dtg.org.uk/retailer/coverage.html to see
whether you are 'supposed' to be able to get those channels?

--
Max Demian


  #3  
Old October 22nd 04, 04:24 PM
Default
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Default

Have you checked here http://www.dtg.org.uk/retailer/coverage.html to see
whether you are 'supposed' to be able to get those channels?

--
Max Demian



Yes the postcode exists and I should get 'freeview'. Thing is I receive 4 of
the 6 MUXs, not all of them..


  #4  
Old October 22nd 04, 04:54 PM
Mark Carver
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Default

Default wrote:

Yes the postcode exists and I should get 'freeview'. Thing is I receive 4 of
the 6 MUXs, not all of them..


What transmitter are you using ? how far are you from it ?
and what box or IDTV have you ?



  #5  
Old October 22nd 04, 05:11 PM
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Default

What transmitter are you using ? how far are you from it ?
and what box or IDTV have you ?




The transmitter is Nottingham. Although I can also use Waltham, but the
signal doesn't seem as strong from Waltham.

Box is a Hauppauge DEC 2000 terrestial.


  #6  
Old October 22nd 04, 05:19 PM
Dave Farrance
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Posts: n/a
Default

"Default" wrote:

I am trying to set up freeview and have managed to pick up most of the
channels except the QAM64 ones: ITV/C4 and five.

I already purchased a high gain wide band external aerial from B&Q which I
tried running indoors. But as I later discovered I am able to receive the
rest of the channels with just one element of the aerial indoors (the one
connected to the coax and straight into the STB). However the QAM64 signals
are there but extremely weak.


High-gain aerials are very directional, but indoors the signal is
scattered and reflected so that you lose most of the advantage of the
aerial's directionality. If you're getting no improvement at all from
the extra elements, then there's probably obstructions that are totally
blocking the direct-line signal.

Is this a situation where a booster might come in handy? Recommendations?


Very unlikely.

When you say indoors, do you mean in a room or in the loft? The higher
you can get the aerial, the better.

--
Dave Farrance
  #7  
Old October 22nd 04, 05:51 PM
John Porcella
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Posts: n/a
Default


"Default" wrote in message
...
I am trying to set up freeview and have managed to pick up most of the
channels except the QAM64 ones: ITV/C4 and five.


What decoder are you using?

Which transmitter are you pointing to?


What do I need to get these missing channels?

I already purchased a high gain wide band external aerial from B&Q which I
tried running indoors.


That seems to be the cause of the weakness in the system. Try running it at
roof level on an outside pole. Hire someone to put it up.

But as I later discovered I am able to receive the
rest of the channels with just one element of the aerial indoors (the one
connected to the coax and straight into the STB). However the QAM64

signals
are there but extremely weak.


Height and the lack of walls blocking signals might make enough of a
difference.


Is this a situation where a booster might come in handy? Recommendations?

BTW to clarify, if I try connecting the aerial with all the elements on

the
dipole, I don't seem to be able to accomplish any noticeable gain, so...


How do you get the elements off?


--
MESSAGE ENDS.
John Porcella


  #8  
Old October 22nd 04, 07:36 PM
Default
external usenet poster
 
Posts: n/a
Default


What decoder are you using?

Which transmitter are you pointing to?


What do I need to get these missing channels?

I already purchased a high gain wide band external aerial from B&Q which
I
tried running indoors.


That seems to be the cause of the weakness in the system. Try running it
at
roof level on an outside pole. Hire someone to put it up.

But as I later discovered I am able to receive the
rest of the channels with just one element of the aerial indoors (the one
connected to the coax and straight into the STB). However the QAM64

signals
are there but extremely weak.


Height and the lack of walls blocking signals might make enough of a
difference.


Is this a situation where a booster might come in handy? Recommendations?

BTW to clarify, if I try connecting the aerial with all the elements on

the
dipole, I don't seem to be able to accomplish any noticeable gain, so...


How do you get the elements off?


--
MESSAGE ENDS.
John Porcella




I am already running my system at a height, pretty close to the loft, well
just under it, upstairs.

The TXs are Nottingham and Waltham, at 7km and 30km resp.

I remove the elements by removing the sole element which pins the coax
connection, and waving that element about.

The box is a Hauppauge DEC 2000 terrestrial which is a respectably sensitive
STB.

I'm not too keen of having a whole new aerial permanently installed as the
house belongs to someone else.


  #9  
Old October 22nd 04, 07:41 PM
Default
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Posts: n/a
Default

High-gain aerials are very directional, but indoors the signal is
scattered and reflected so that you lose most of the advantage of the
aerial's directionality. If you're getting no improvement at all from
the extra elements, then there's probably obstructions that are totally
blocking the direct-line signal.


Yes apparently I gathered that. So I am probably receiving a strong signal
in that case if it means I can pick it up with just a single element.

Now if only something could be done about the QAM64 channels/MUXs..

The whole operation is running upstairs, in a bedroom, not in a loft per se,
but pretty close to the ceiling..


  #10  
Old October 22nd 04, 09:22 PM
Dave Farrance
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Posts: n/a
Default

"Default" wrote:

I am already running my system at a height, pretty close to the loft, well
just under it, upstairs.

The box is a Hauppauge DEC 2000 terrestrial which is a respectably sensitive
STB.

I'm not too keen of having a whole new aerial permanently installed as the
house belongs to someone else.


Then there's not much that you can do. The latest DTT STBs are already
near the limit of possible sensitivity. If you bought a booster that had
a very low noise figure, (the gain is less important) then it might be
enough to bring in the signal, but it might turn out to be a complete
waste of money instead.

--
Dave Farrance

 




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