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-   -   Dodgy signal quality PSB2 Emley? (http://www.homecinemabanter.com/showthread.php?t=71449)

Syd February 27th 12 04:38 PM

Dodgy signal quality PSB2 Emley?
 
On our kitchen TV we have variable signal quality on PSB2 (Emley), it is
generally around 82-85% but drops suddenly to zero then back up with the
inevitable picture break up, strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd box which
reports 100% strength and quality and is unaffected, rf2 feeds 3 other sets
via a Global amp under the floor. I can see variations in strength on
another sony we have fed off the Global.

Before I go under the floor is it likely to be the amp? Ive checked all
connections. The aerial has a clear line of sight over to Emley about 8
miles away.



Brian Gaff February 27th 12 04:56 PM

Dodgy signal quality PSB2 Emley?
 
Out of band signals overloading the amp?

Brian

--
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Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
"Syd" wrote in message
...
On our kitchen TV we have variable signal quality on PSB2 (Emley), it is
generally around 82-85% but drops suddenly to zero then back up with the
inevitable picture break up, strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd box which
reports 100% strength and quality and is unaffected, rf2 feeds 3 other
sets via a Global amp under the floor. I can see variations in strength on
another sony we have fed off the Global.

Before I go under the floor is it likely to be the amp? Ive checked all
connections. The aerial has a clear line of sight over to Emley about 8
miles away.




Paul Ratcliffe February 27th 12 08:11 PM

Dodgy signal quality PSB2 Emley?
 
On Mon, 27 Feb 2012 15:38:20 -0000, Syd wrote:

On our kitchen TV we have variable signal quality on PSB2 (Emley), it is
generally around 82-85% but drops suddenly to zero then back up with the
inevitable picture break up, strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd box which
reports 100% strength and quality and is unaffected, rf2 feeds 3 other sets
via a Global amp under the floor. I can see variations in strength on
another sony we have fed off the Global.

Before I go under the floor is it likely to be the amp? Ive checked all
connections. The aerial has a clear line of sight over to Emley about 8
miles away.


Is the kitchen TV one of the 3 off the amp. then? You didn't state
explicitly.
Why do you (think you) need the amp? Probably worth removing it and
using a 3-way passive splitter instead.

Syd February 27th 12 08:29 PM

Dodgy signal quality PSB2 Emley?
 
what would be a cure? just tried a 24db attenuator I had, signal is down to
46% and quality is like a yoyo 0-85%.

"Brian Gaff" wrote in message
...
Out of band signals overloading the amp?

Brian

--
Brian Gaff -
Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
"Syd" wrote in message
...
On our kitchen TV we have variable signal quality on PSB2 (Emley), it is
generally around 82-85% but drops suddenly to zero then back up with the
inevitable picture break up, strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd box which
reports 100% strength and quality and is unaffected, rf2 feeds 3 other
sets via a Global amp under the floor. I can see variations in strength
on another sony we have fed off the Global.

Before I go under the floor is it likely to be the amp? Ive checked all
connections. The aerial has a clear line of sight over to Emley about 8
miles away.






Woody[_3_] February 27th 12 08:34 PM

Dodgy signal quality PSB2 Emley?
 
"Syd" wrote in message
...
On our kitchen TV we have variable signal quality on PSB2
(Emley), it is generally around 82-85% but drops suddenly to
zero then back up with the inevitable picture break up,
strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd
box which reports 100% strength and quality and is unaffected,
rf2 feeds 3 other sets via a Global amp under the floor. I can
see variations in strength on another sony we have fed off the
Global.

Before I go under the floor is it likely to be the amp? Ive
checked all connections. The aerial has a clear line of sight
over to Emley about 8 miles away.




If you can see Emley at that distance and have a usual 10 ele
yagi you most certainly don't need an amp - and as Brian says you
could be overloading it.

I would be more concerned that you are only getting 60% signal
and 80% quality. I get more than that in signal and 100% quality
and I'm nearer 30 miles away! Is the cable to your kitchen TV
CT100 or similar or is it the old brown stuff? If the latter it
is likely you are getting pickup on the cable.

We have a M&S kitchen TV (I suspect Daewoo underneath) and it too
keeps freezing but mainly on PSB1. I have significantly reduced
(although not eliminated) the effect by winding the mains lead
and the aerial cable through ferrites which may be reducing
pickup on both cables.


--
Woody

harrogate three at ntlworld dot com



Syd February 27th 12 08:37 PM

Dodgy signal quality PSB2 Emley?
 
The feed to the kitchen is ct100 with copper foil, I get 100% from RF1, all
has been ok up to now.

Its one of the Global 4 way magic eye amps for sky I have, must be 12 or 13
years old now.

"Woody" wrote in message
...
"Syd" wrote in message
...
On our kitchen TV we have variable signal quality on PSB2 (Emley), it is
generally around 82-85% but drops suddenly to zero then back up with the
inevitable picture break up, strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd box which
reports 100% strength and quality and is unaffected, rf2 feeds 3 other
sets via a Global amp under the floor. I can see variations in strength
on another sony we have fed off the Global.

Before I go under the floor is it likely to be the amp? Ive checked all
connections. The aerial has a clear line of sight over to Emley about 8
miles away.




If you can see Emley at that distance and have a usual 10 ele yagi you
most certainly don't need an amp - and as Brian says you could be
overloading it.

I would be more concerned that you are only getting 60% signal and 80%
quality. I get more than that in signal and 100% quality and I'm nearer 30
miles away! Is the cable to your kitchen TV CT100 or similar or is it the
old brown stuff? If the latter it is likely you are getting pickup on the
cable.

We have a M&S kitchen TV (I suspect Daewoo underneath) and it too keeps
freezing but mainly on PSB1. I have significantly reduced (although not
eliminated) the effect by winding the mains lead and the aerial cable
through ferrites which may be reducing pickup on both cables.


--
Woody

harrogate three at ntlworld dot com




Syd February 27th 12 10:10 PM

Dodgy signal quality PSB2 Emley?
 

"Paul Ratcliffe" wrote in message
...
On Mon, 27 Feb 2012 15:38:20 -0000, Syd wrote:

On our kitchen TV we have variable signal quality on PSB2 (Emley), it is
generally around 82-85% but drops suddenly to zero then back up with the
inevitable picture break up, strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd box which
reports 100% strength and quality and is unaffected, rf2 feeds 3 other
sets
via a Global amp under the floor. I can see variations in strength on
another sony we have fed off the Global.

Before I go under the floor is it likely to be the amp? Ive checked all
connections. The aerial has a clear line of sight over to Emley about 8
miles away.


Is the kitchen TV one of the 3 off the amp. then? You didn't state
explicitly.


yes

Why do you (think you) need the amp? Probably worth removing it and
using a 3-way passive splitter instead.


so we can have sky in the kitchen,the magic eye part is still fine



Brian Gaff February 28th 12 08:30 AM

Dodgy signal quality PSB2 Emley?
 
I'd be tempted to test another set up on that output before I started to dig
around in the system.
Brian

--
Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
Email:
__________________________________________________ __________________________________________________ __________


"Syd" wrote in message
...

"Paul Ratcliffe" wrote in message
...
On Mon, 27 Feb 2012 15:38:20 -0000, Syd wrote:

On our kitchen TV we have variable signal quality on PSB2 (Emley), it is
generally around 82-85% but drops suddenly to zero then back up with the
inevitable picture break up, strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd box which
reports 100% strength and quality and is unaffected, rf2 feeds 3 other
sets
via a Global amp under the floor. I can see variations in strength on
another sony we have fed off the Global.

Before I go under the floor is it likely to be the amp? Ive checked all
connections. The aerial has a clear line of sight over to Emley about 8
miles away.


Is the kitchen TV one of the 3 off the amp. then? You didn't state
explicitly.


yes

Why do you (think you) need the amp? Probably worth removing it and
using a 3-way passive splitter instead.


so we can have sky in the kitchen,the magic eye part is still fine




Syd February 28th 12 11:48 AM

Dodgy signal quality PSB2 Emley?
 
Box was stuck in stand by this morning then got stuck on its splash screen.
Seems it may be a dodgy box.

The analogue signal from the sky hd box on rf 2 improved with the 24db
attenuator in.

Anyone suggest what attenuator I should use 8miles from emley with line of
sight?

"Brian Gaff" wrote in message
...
I'd be tempted to test another set up on that output before I started to
dig around in the system.
Brian

--
Brian Gaff....Note, this account does not accept Bcc: email.
graphics are great, but the blind can't hear them
Email:
__________________________________________________ __________________________________________________ __________


"Syd" wrote in message
...

"Paul Ratcliffe" wrote in message
...
On Mon, 27 Feb 2012 15:38:20 -0000, Syd wrote:

On our kitchen TV we have variable signal quality on PSB2 (Emley), it
is
generally around 82-85% but drops suddenly to zero then back up with
the
inevitable picture break up, strength is 60%.

We also have a freeview hd sony set fed from rf1 of a sky hd box which
reports 100% strength and quality and is unaffected, rf2 feeds 3 other
sets
via a Global amp under the floor. I can see variations in strength on
another sony we have fed off the Global.

Before I go under the floor is it likely to be the amp? Ive checked all
connections. The aerial has a clear line of sight over to Emley about 8
miles away.

Is the kitchen TV one of the 3 off the amp. then? You didn't state
explicitly.


yes

Why do you (think you) need the amp? Probably worth removing it and
using a 3-way passive splitter instead.


so we can have sky in the kitchen,the magic eye part is still fine






Paul Ratcliffe February 28th 12 10:28 PM

Dodgy signal quality PSB2 Emley?
 
On Tue, 28 Feb 2012 10:48:24 -0000, Syd wrote:

The analogue signal from the sky hd box on rf 2 improved with the 24db
attenuator in.


That doesn't surprise me.

Anyone suggest what attenuator I should use 8miles from emley with line of
sight?


How about just 4 inches of co-ax in the aerial socket instead of the
aerial+downlead?


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