Tv reception

[F Murtz]

Petzl wrote:

On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but this
was almost all or nothing.

"F Murtz" you know your nearest transmiter is Razorback straight line
10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney

Yes, and lots of trees in between.

 

[Petzl]

On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com>
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but this
was almost all or nothing.

"F Murtz" you know your nearest transmiter is Razorback straight line
10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney
--
Petzl
Arguing with a woman is like reading the Software License Agreement.
In the end, you ignore everthing and click "I agree"

 

[F Murtz]

Max wrote:

"F Murtz" <haggisz@hotmail.com> wrote in message
news:5895e20f$0$55943$b1db1813$65575428@news.astraweb.com...
Lucifer Morningstar wrote:
On Sat, 4 Feb 2017 23:49:55 +1100, F Murtz <haggisz@hotmail.com
wrote:

For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

My electric fence was interfering with my TV reception.

If I had an electric fence that would be one of the first suspects but
who would think turning a light on would cause it, if I lived with
anyone I may have figured it out earlier.

Why would you have figured it out earlier if you lived with someone?

Because two are in more places than one.
If one was watching the tele and the other turned on the light there
would be more chance to work out a relation for instance.

 

[F Murtz]

Petzl wrote:

On Sun, 5 Feb 2017 06:11:20 +1100, "Rod Speed"
rod.speed.aaa@gmail.com> wrote:

F Murtz <haggisz@hotmail.com> wrote

For months I have been having problems with tv reception TV
not working on most channels for hours, I have been blaming 4g
towers, fixed wireless towers etc that have just been put up etc.

I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

Presumably your signal levels arent great and
the interference it produces swamps the TV signal.

He won't pay the local Indian guy $100 to put in Digital Aerial and
did it himself!
mkumar65 [ at ] live [ dot ] com [ dot ] com
Just had my tile roof cleaned and he straightened all the ones knocked
out of place

I am still using the professionally installed system The other was to
try and rectify what I erroneously thought was the problem.

 

[F Murtz]

Computer Nerd Kev wrote:

In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but this
was almost all or nothing.

 

[Petzl]

On Sun, 5 Feb 2017 18:25:32 +1100, F Murtz <haggisz@hotmail.com>
wrote:

Petzl wrote:
On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but this
was almost all or nothing.

"F Murtz" you know your nearest transmiter is Razorback straight line
10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney

Yes, and lots of trees in between.

Have you got a dedicated digital TV antenna?
My place is also a home amongst the gum trees.
--
Petzl
Arguing with a woman is like reading the Software License Agreement.
In the end, you ignore everthing and click "I agree"

 

[Rod Speed]

"Petzl" <petzlx@gmail.com> wrote in message
news:h9nd9clav36cj3ceolkdf9508j3b4eugq9@4ax.com...

On Sun, 5 Feb 2017 18:25:32 +1100, F Murtz <haggisz@hotmail.com
wrote:

Petzl wrote:
On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not
working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but
this
was almost all or nothing.

"F Murtz" you know your nearest transmiter is Razorback straight line
10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney

Yes, and lots of trees in between.

Have you got a dedicated digital TV antenna?

No such animal.

> My place is also a home amongst the gum trees.

So is mine, but they arent on the side where the TV transmitters are.

 

[Petzl]

On Sun, 5 Feb 2017 19:58:21 +1100, "Rod Speed"
<rod.speed.aaa@gmail.com> wrote:

"Petzl" <petzlx@gmail.com> wrote in message
news:h9nd9clav36cj3ceolkdf9508j3b4eugq9@4ax.com...
On Sun, 5 Feb 2017 18:25:32 +1100, F Murtz <haggisz@hotmail.com
wrote:

Petzl wrote:
On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not
working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but
this
was almost all or nothing.

"F Murtz" you know your nearest transmiter is Razorback straight line
10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney

Yes, and lots of trees in between.

Have you got a dedicated digital TV antenna?

No such animal.

Well my analogue one was 3 metres above the top of the roof
The digital one is tacked to the "barge board" the gutter is on,
about a metre high but really small.
Reception is excellent.

My place is also a home amongst the gum trees.

So is mine, but they arent on the side where the TV transmitters are.

Then if need be there are Sydney transmitters 180 degrees in reverse
--
Petzl
Arguing with a woman is like reading the Software License Agreement.
In the end, you ignore everthing and click "I agree"

 

[felix]

On Sunday, 5 Feb 2017 7:09 PM, Petzl wrote:

On Sun, 5 Feb 2017 18:25:32 +1100, F Murtz <haggisz@hotmail.com
wrote:

Petzl wrote:
On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha
I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but this
was almost all or nothing.
"F Murtz" you know your nearest transmiter is Razorback straight line
10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney

Yes, and lots of trees in between.
Have you got a dedicated digital TV antenna?
My place is also a home amongst the gum trees.

digital antennas need 'line of sight'

--
"Never argue with a fool. They will drag you
to their level and beat you with experience"

 

[Rod Speed]

"Petzl" <petzlx@gmail.com> wrote in message
news:v95e9chkbb8hbiq6fpnkedovsbbsngkpai@4ax.com...

On Sun, 5 Feb 2017 19:58:21 +1100, "Rod Speed"
rod.speed.aaa@gmail.com> wrote:



"Petzl" <petzlx@gmail.com> wrote in message
news:h9nd9clav36cj3ceolkdf9508j3b4eugq9@4ax.com...
On Sun, 5 Feb 2017 18:25:32 +1100, F Murtz <haggisz@hotmail.com
wrote:

Petzl wrote:
On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not
working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but
this
was almost all or nothing.

"F Murtz" you know your nearest transmiter is Razorback straight line
10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney

Yes, and lots of trees in between.

Have you got a dedicated digital TV antenna?

No such animal.

Well my analogue one was 3 metres above the top of the roof
The digital one is tacked to the "barge board" the gutter is on,
about a metre high

Mine always as and isnt even that high.

> but really small.

That's because its UHF only, not VHF.

> Reception is excellent.

Yeah, that's because its digital. Plenty who couldn't get a
decent result with an internal antenna can now with digital.

My place is also a home amongst the gum trees.

So is mine, but they arent on the side where the TV transmitters are.

Then if need be there are Sydney transmitters 180 degrees in reverse

We never had that here, 90 degrees different at one time.

 

[Benderthe.evilrobot]

"F Murtz" <haggisz@hotmail.com> wrote in message
news:5895cdf7$0$4415$b1db1813$145976f0@news.astraweb.com...

For months I have been having problems with tv reception TV not working on
most channels for hours, I have been blaming 4g towers, fixed wireless
towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED similar
to this,
http://imgur.com/a/dj5ha

With a metal cased unit you can get away with a ferrite collar on the supply
lead.

If you have to go inside - you can get split ferrite clamp on collars that
can be fitted without lifting any wires, the smaller sizes you're likely to
want are harder to find.

 

[Benderthe.evilrobot]

"F Murtz" <haggisz@hotmail.com> wrote in message
news:5895e20f$0$55943$b1db1813$65575428@news.astraweb.com...

Lucifer Morningstar wrote:
On Sat, 4 Feb 2017 23:49:55 +1100, F Murtz <haggisz@hotmail.com
wrote:

For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

My electric fence was interfering with my TV reception.

If I had an electric fence that would be one of the first suspects but who
would think turning a light on would cause it,

Its been a possible problem with CFLs for years.

Some of the LED replacement bulbs use a wattless dropper instead of SMPSU
circuitry. You might be able to adapt it, but don't forget to include a
surge limiting resistor - the current is very high around the zero crossing
portion of the AC waveform.

All the LED bulbs I've pulled apart had SMD resistors, so I didn't bother
tracing the schematic - there was a very handy CFL blog, maybe LED bulbs
have caught up.

 

[Benderthe.evilrobot]

"Lucifer Morningstar" <Barry@saymyname.com> wrote in message
news:fuic9c9cifahpur27srfo1t9tqe5bij9d0@4ax.com...

On Sun, 5 Feb 2017 01:15:39 +1100, F Murtz <haggisz@hotmail.com
wrote:

Lucifer Morningstar wrote:
On Sat, 4 Feb 2017 23:49:55 +1100, F Murtz <haggisz@hotmail.com
wrote:

For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

My electric fence was interfering with my TV reception.

If I had an electric fence that would be one of the first suspects but
who would think turning a light on would cause it, if I lived with
anyone I may have figured it out earlier.

My electric fence was affecting the signal quality to where the
picture and sound dropped out completely but not in pulses
like the electric fence.

They're not entirely dissimilar to automotive CDI - they have a transistor
inverter generating about 350V for the capacitor discharge section.

 

[Rod Speed]

"felix" <me@nothere.invalid> wrote in message
news:efom6eFp6feU2@mid.individual.net...

On Sunday, 5 Feb 2017 7:09 PM, Petzl wrote:
On Sun, 5 Feb 2017 18:25:32 +1100, F Murtz <haggisz@hotmail.com
wrote:

Petzl wrote:
On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not
working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha
I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV when
it happens because the "all or nothing" consequence of a weak
digital signal makes the whole experiance so much more annoying
than the bit of noise that might have appeared in analogue
reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather but
this
was almost all or nothing.
"F Murtz" you know your nearest transmiter is Razorback straight line
10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney

Yes, and lots of trees in between.
Have you got a dedicated digital TV antenna?
My place is also a home amongst the gum trees.

digital antennas need 'line of sight'

No they don’t and clearly the internal ones inside the house don’t have that
and work fine.

 

[Benderthe.evilrobot]

"Blue Peeler" <woof@barque.org> wrote in message
news:efn0c5FfbjlU1@mid.individual.net...

Lucifer Morningstar wrote:


My electric fence was interfering with my TV reception.


To clarify - was that the electronics in the fence generator, or the
screams of the victims that was intruding on your viewing pleasure?

Someone on one of the electronics forums was into urinating on electric
fences.............

 

[Rod Speed]

"Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> wrote in message
news:sfMlA.195747$yv3.192638@fx30.am4...

"F Murtz" <haggisz@hotmail.com> wrote in message
news:5895e20f$0$55943$b1db1813$65575428@news.astraweb.com...
Lucifer Morningstar wrote:
On Sat, 4 Feb 2017 23:49:55 +1100, F Murtz <haggisz@hotmail.com
wrote:

For months I have been having problems with tv reception TV not working
on most channels for hours, I have been blaming 4g towers, fixed
wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha

My electric fence was interfering with my TV reception.

If I had an electric fence that would be one of the first suspects but
who would think turning a light on would cause it,

Its been a possible problem with CFLs for years.

Some of the LED replacement bulbs use a wattless dropper instead of SMPSU
circuitry. You might be able to adapt it, but don't forget to include a
surge limiting resistor - the current is very high around the zero
crossing portion of the AC waveform.

That's mad, the current will be very low around the zero crossing of the AC
waveform.

All the LED bulbs I've pulled apart had SMD resistors, so I didn't bother
tracing the schematic - there was a very handy CFL blog, maybe LED bulbs
have caught up.

 

[F Murtz]

Benderthe.evilrobot wrote:

"F Murtz" <haggisz@hotmail.com> wrote in message
news:5895cdf7$0$4415$b1db1813$145976f0@news.astraweb.com...
For months I have been having problems with tv reception TV not
working on most channels for hours, I have been blaming 4g towers,
fixed wireless towers etc that have just been put up etc.
I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha


With a metal cased unit you can get away with a ferrite collar on the
supply lead.

If you have to go inside - you can get split ferrite clamp on collars
that can be fitted without lifting any wires, the smaller sizes you're
likely to want are harder to find.

When the temp in the roof gets below the high fourties I might shift the
coax that must be passing near,and or try ferrite.

 

[F Murtz]

Benderthe.evilrobot wrote:

"Blue Peeler" <woof@barque.org> wrote in message
news:efn0c5FfbjlU1@mid.individual.net...
Lucifer Morningstar wrote:


My electric fence was interfering with my TV reception.


To clarify - was that the electronics in the fence generator, or the
screams of the victims that was intruding on your viewing pleasure?

Someone on one of the electronics forums was into urinating on electric
fences.............
Did not mythbusters do one on that?

 

[~misfit~]

Once upon a time on usenet Computer Nerd Kev wrote:

On 05 Feb 2017, noel wrote:

On Sun, 05 Feb 2017 09:44:30 +1100, Clifford Heath wrote:

On 05/02/17 09:21, Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception
TV not working on most channels for hours, I have been
blaming 4g towers, fixed wireless towers etc that have
just been put up etc. I have just found the cause by
accident, almost unbelievable. TV does not work if the
kitchen light is on. The culprit is one of these, a 12"
or so multiple led ceiling LED similar to this,
http://imgur.com/a/dj5ha

I wish I could put down my TV reception's bad stints to
something like that. I ususally mumble something nasty
about digital TV when it happens because the "all or
nothing" consequence of a weak digital signal makes the
whole experiance so much more annoying than the bit of
noise that might have appeared in analogue reception.

It's funny how reception can be bad for a week or more
then fine for months afterwards, or only dodgy on a few
nights. Probably something to do with atmospheric
conditions. Maybe I should look at the atmosphere monitor
webpages that the ham radio people use next time there's
a long stint of trouble.

The transmitter's around 70Km away.

A lot of people were affected by the move to UHF (225 MHz
up to 570-ish). In some places where before you could
survive without direct line of sight (perhaps behind a
hill) you now can't, even with the digital system error
correction.

Clifford Heath.

might be stupid question, but was the OP's antennae
upgraded with the move to digital

We had that problem here with analogue, had new ant and
amplifier installed when we moved in, was still not the
best, move to digital required new ant, and the guys had to
"substantially" wind back the amplifiers gain due to too
much signal.

If I'm the OP you're talking about, my aerial is designed for
digital. The installation was a DIY affair though (one person
on the roof, another watching the set-top box's signal level
menu). That procedure has been repeated a few times after the
wind's blown the antenna in the wrong direction - the mounting
design really isn't suited to the "watch the world blow by
your window" winds out here.

Not optimal, but it shouldn't be any worse than the set-up on
analogue.

I'm about 70kms from the transmitter also and the installer has my aerial
pointed upwards at about 30 degrees. I'd struggled going up and down a
ladder and turning the damn thing several times myself and not getting a
decent signal (but never thought to angle it upwards!) before discovering
that, being disabled I was entitled to a subsidised professional install.
Since it's been pointed up like that it's been great.

Best of luck.
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

 

[~misfit~]

Once upon a time on usenet felix wrote:

On Sunday, 5 Feb 2017 7:09 PM, Petzl wrote:
On Sun, 5 Feb 2017 18:25:32 +1100, F Murtz <haggisz@hotmail.com
wrote:

Petzl wrote:
On Sun, 5 Feb 2017 13:51:41 +1100, F Murtz <haggisz@hotmail.com
wrote:

Computer Nerd Kev wrote:
In aus.electronics F Murtz <haggisz@hotmail.com> wrote:
For months I have been having problems with tv reception TV not
working on most channels for hours, I have been blaming 4g
towers, fixed wireless towers etc that have just been put up
etc. I have just found the cause by accident, almost unbelievable.
TV does not work if the kitchen light is on.
The culprit is one of these, a 12" or so multiple led ceiling LED
similar to this,
http://imgur.com/a/dj5ha
I wish I could put down my TV reception's bad stints to something
like that. I ususally mumble something nasty about digital TV
when it happens because the "all or nothing" consequence of a
weak digital signal makes the whole experiance so much more
annoying than the bit of noise that might have appeared in
analogue reception.

It's funny how reception can be bad for a week or more then fine
for months afterwards, or only dodgy on a few nights. Probably
something to do with atmospheric conditions. Maybe I should
look at the atmosphere monitor webpages that the ham radio
people use next time there's a long stint of trouble.

The transmitter's around 70Km away.

I always have had minor glitches that I put down to the weather
but this was almost all or nothing.
"F Murtz" you know your nearest transmiter is Razorback straight
line 10 Klm away
https://is.gd/EVehQL

https://www.digitaltvhelp.com.au/digital-tv-antenna-capital-cities/#sydney

Yes, and lots of trees in between.
Have you got a dedicated digital TV antenna?
My place is also a home amongst the gum trees.

digital antennas need 'line of sight'

I thought that too until the installer faced mine up at an angle to catch
the signal bounced off the troposphere (?).
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)