Waltham
 

Having trouble getting a good signal on ITV from Waltham - others are okay.
Tried retuning and lost some ITV and channel5. Got them back - but very
iffy. Full strength on BBC though.

Any ideas - I had been thinking a tree might be in my line of sight but I
guess that would downgrade all channels.

Waltham
 

You can check the tree(s) at my aerial alignment page:
http://www.macfh.co.uk/Test/UKTerrestrialTVTest.html

This is the info I currently have for Waltham, doubtless Mark may come
along with some mo

/* Waltham */
var SK809233 =
{
dsobeg:"01-01-2011",
dsoend:"31-12-2011",
transmissions:
[
{
type:"Analog",
bbc:"East Midlands",
itv:"Central",
aergrp:"C/D",
aerpol:"H",
aerht:440,
erp:250,

channels:[{name:"BBC1",number:58},{name:"BBC2",number:64},{n ame:"ITV",number:61},{name:"Ch4",number:54}]
},
{
type:"Analog",
itv:"Central",
aergrp:"E",
aerpol:"H",
aerht:406,
erp:250,
channels:[{name:"Ch5",number:35}]
},
{
type:"DTTPre",
itv:"Central",
aergrp:"W",
aerpol:"H",
aerht:403,
channels:[{name:"Mux 1",number:49,erp:10},{name:"Mux
2",number:23,erp:8},{name:"Mux A",number:26,erp:8},{name:"Mux
B",number:33,erp:8},{name:"Mux C",number:45,erp:5},{name:"Mux
D",number:42,erp:5}]
},
{
type:"DTTPost",
itv:"Central",
aergrp:"W",
aerpol:"H",
channels:[{name:"BBC
A",number:61,erp:50},{name:"D3&4",number:54,erp:50 },{name:"BBC
B",number:58,erp:50},{name:"SDN",number:29,erp:25} ,{name:"Arq
A",number:56,erp:25},{name:"Arq B",number:57,erp:25}]
}
],
children:["SK189691","SK337462","SK241616","SK294553","SK275 642","SK329342","SK463470","SK585033","SK371419"," SK297589","SK503435","SK185542","TF032067","SK2456 37"]
}

On Mon, 6 Jul 2009 19:14:05 +0100, "John"
wrote:

Having trouble getting a good signal on ITV from Waltham - others are okay.
Tried retuning and lost some ITV and channel5. Got them back - but very
iffy. Full strength on BBC though.

Any ideas - I had been thinking a tree might be in my line of sight but I
guess that would downgrade all channels.


======================================

Please always reply to news group as the email address in
this post's header does not exist. Alternatively, use one of the
contact addresses at:
http://www.macfh.co.uk/JavaJive/JavaJive.html
http://www.macfh.co.uk/Macfarlane/Macfarlane.html

Waltham
 

John wrote:
Having trouble getting a good signal on ITV from Waltham - others are okay.
Tried retuning and lost some ITV and channel5. Got them back - but very
iffy. Full strength on BBC though.

Any ideas - I had been thinking a tree might be in my line of sight but I
guess that would downgrade all channels.

First question, what type of aerial do you have, Group C/D or Wideband ?

The muxes that carry ITV and C5 are on UHF Ch 23, and 26, way out of group if
you are using a C/D. BBC Mux is on Ch 49, inside Group C/D.


--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

Waltham
 

"Mark Carver" wrote in message
...
John wrote:
Having trouble getting a good signal on ITV from Waltham - others are
okay. Tried retuning and lost some ITV and channel5. Got them back - but
very iffy. Full strength on BBC though.

Any ideas - I had been thinking a tree might be in my line of sight but I
guess that would downgrade all channels.

First question, what type of aerial do you have, Group C/D or Wideband ?

The muxes that carry ITV and C5 are on UHF Ch 23, and 26, way out of group
if you are using a C/D. BBC Mux is on Ch 49, inside Group C/D.


--
Mark

Also, trees are very 'frequency selective' and can act like notch filters,
killing one channel and leaving the others alone.

Bill

Waltham
 

"Mark Carver" wrote in message
...
John wrote:
Having trouble getting a good signal on ITV from Waltham - others are
okay. Tried retuning and lost some ITV and channel5. Got them back - but
very iffy. Full strength on BBC though.

Any ideas - I had been thinking a tree might be in my line of sight but I
guess that would downgrade all channels.

First question, what type of aerial do you have, Group C/D or Wideband ?

The muxes that carry ITV and C5 are on UHF Ch 23, and 26, way out of group
if you are using a C/D. BBC Mux is on Ch 49, inside Group C/D.


--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

I don't know - it has 16 director elements and plastic encased element.
Fitted about 4 years ago. ITV1 is on 23

Waltham
 

John wrote:
"Mark Carver" wrote in message

First question, what type of aerial do you have, Group C/D or Wideband ?

The muxes that carry ITV and C5 are on UHF Ch 23, and 26, way out of group
if you are using a C/D. BBC Mux is on Ch 49, inside Group C/D.


I don't know - it has 16 director elements and plastic encased element.
Fitted about 4 years ago. ITV1 is on 23

One of these ?

http://www.antiference.tv/sites/anti...es/42%20RX.pdf

How good is your analogue C5 reception, compared with analogue BBC1/2/ITV/4 ?

--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

Waltham
 

You can tell the aerial group from the cap colour:
Group/Cap colour on aerial/Channel Range
A Red 21 to 37
B Yellow 35 to 53
C/D Green 48 to 68
E Brown 35 to 68
K Grey 21 to 48
W Black or none 21 to 68 (all of them, aka WideBand)

On Mon, 6 Jul 2009 20:31:42 +0100, "John"
wrote:
"Mark Carver" wrote in message
...

First question, what type of aerial do you have, Group C/D or Wideband ?

I don't know - it has 16 director elements and plastic encased element.
Fitted about 4 years ago. ITV1 is on 23

======================================

Please always reply to news group as the email address in
this post's header does not exist. Alternatively, use one of the
contact addresses at:
http://www.macfh.co.uk/JavaJive/JavaJive.html
http://www.macfh.co.uk/Macfarlane/Macfarlane.html

Waltham
 

"Mark Carver" wrote in message
...
John wrote:
"Mark Carver" wrote in message

First question, what type of aerial do you have, Group C/D or Wideband ?

The muxes that carry ITV and C5 are on UHF Ch 23, and 26, way out of
group if you are using a C/D. BBC Mux is on Ch 49, inside Group C/D.


I don't know - it has 16 director elements and plastic encased element.
Fitted about 4 years ago. ITV1 is on 23

One of these ?

http://www.antiference.tv/sites/anti...es/42%20RX.pdf

How good is your analogue C5 reception, compared with analogue
BBC1/2/ITV/4 ?

--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

Aerial - yes

Can't easily tell with analogue - only SCART into TV - I have rationalised
some of the daisy chaining.

Waltham
 

"Java Jive" wrote in message
...
You can check the tree(s) at my aerial alignment page:
http://www.macfh.co.uk/Test/UKTerrestrialTVTest.html

This is the info I currently have for Waltham, doubtless Mark may come
along with some mo


Amazing site - congratulations.

Waltham
 

"Java Jive" wrote in message
...
You can tell the aerial group from the cap colour:
Group/Cap colour on aerial/Channel Range
A Red 21 to 37
B Yellow 35 to 53
C/D Green 48 to 68
E Brown 35 to 68
K Grey 21 to 48
W Black or none 21 to 68 (all of them, aka WideBand)

On Mon, 6 Jul 2009 20:31:42 +0100, "John"
wrote:
"Mark Carver" wrote in message
...

First question, what type of aerial do you have, Group C/D or Wideband
?

I don't know - it has 16 director elements and plastic encased element.
Fitted about 4 years ago. ITV1 is on 23

======================================

Please always reply to news group as the email address in
this post's header does not exist. Alternatively, use one of the
contact addresses at:
http://www.macfh.co.uk/JavaJive/JavaJive.html
http://www.macfh.co.uk/Macfarlane/Macfarlane.html


Black on front end.

Waltham
 

The lost stations after several attempts to re-tune a

3
4
6
8
10
13
14

Is there a common theme?

Waltham
 

"John" wrote:

The lost stations after several attempts to re-tune a

3
4
6
8
10
13
14

Is there a common theme?

Yes, those are on Mux 2, which is on Waltham's UHF channel 23.

--
Dave Farrance

Waltham
 

"Dave Farrance" wrote in message
...
"John" wrote:

The lost stations after several attempts to re-tune a

3
4
6
8
10
13
14

Is there a common theme?

Yes, those are on Mux 2, which is on Waltham's UHF channel 23.

--
Dave Farrance

Got them back after a further re-tune - but the signals are weaker than the
others. Any suggestions?

Waltham
 

On Mon, 6 Jul 2009 21:09:18 +0100, "John"
wrote:

Amazing site - congratulations.

For some reason I missed this earlier, thanks for the compliment.
Sorry you're still having problems.

======================================

Please always reply to news group as the email address in
this post's header does not exist. Alternatively, use one of the
contact addresses at:
http://www.macfh.co.uk/JavaJive/JavaJive.html
http://www.macfh.co.uk/Macfarlane/Macfarlane.html

Waltham
 

John wrote:

Got them back after a further re-tune - but the signals are weaker than the
others. Any suggestions?

We need to clear up how well your aerial is performing at the lower end of the
band, as I asked in my other post, the quality of C5 analogue (Ch 35) compared
against the other four analogues (Ch 54,58,61,64) might provide some clues.
The evidence you have presented certainly points to a problem at the lower end
of the band.

--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk

Waltham
 

I had forgotten how poor normal analogue is - fortunately BBC2 and Ch5 were
both showing the same Jackson Tribute - Ch5 was slightly worse.

On the crude scale on the info display BBC 1 is at Max signal - ITV is at
about 10% of scale.
"Mark Carver" wrote in message
...
John wrote:

Got them back after a further re-tune - but the signals are weaker than
the others. Any suggestions?

We need to clear up how well your aerial is performing at the lower end of
the band, as I asked in my other post, the quality of C5 analogue (Ch 35)
compared against the other four analogues (Ch 54,58,61,64) might provide
some clues. The evidence you have presented certainly points to a problem
at the lower end of the band.

--
Mark
Please replace invalid and invalid with gmx and net to reply.

www.paras.org.uk