Terrestrial TV Reception in SE Reading, UK - C-H and TETRA Interference (LONG!)

Camouflage wrote:
Apologies if multiple copies arrive

I should think so, its confusing the hell out of me!

GSM, UMTS, and TETRA are all listed on the ofcom sitefinder map,
unfortunately a lot of new TETRA masts are appearing due to the rollout
of Airwave and it takes a few months for them to appear on the site.
http://www.sitefinder.radio.gov.uk/


Yes and no. My info on mobile masts came from that source, but when
searching for TETRA sources there were definite suggestions on the web
both as you suggest but also that the info was deliberately, officially
being kept under wraps. In support of the latter point of view, the new
police station I mentioned has been open at least a couple of years now,
but still doesn't appear on the map.

Typical - they come up with something that on the face of it has the
potential to be useful, then they make sure it isn't. What exactly do
you mean by 'under wraps'? Are we talking 'never to be revealed' here,
or just 'keep quiet about it until Airwave rollout is complete'? I've
had my eye on a new mast for a while now that they've been building half
way up a mountain. First a big trench appeared taking mains cables all
the way up, then a hut and a concrete base, then finally the mast and
antennas. When they finished it all off they put various signs on it,
one of them announcing that the only people allowed to climb up it were
Airwave employees, which kind of gives away what it is. The funny thing
is that halfway up the hill, alongside their new trench, there's a metal
cabinet with mains switchgear in it and no lock on the door, so you can
just switch it off if you like :-)

You talk about interference in the mains, but I'm not so sure about
this. I've been doing some measurements recently on RF propagation
through the mains, and by the time you get up to VHF frequencies the
attenuation is massive.


I just meant the surges and arcing that accompany 'dirty' switching.

Yes, switching and arcing produce RF interference with a wide frequency
spectrum, which either propagates along the mains wiring (lower
frequencies) or radiates (higher frequencies).

I'm going to get some
clip-on ferrites to put round my mains and coax cables to try and cure
occasional glitches - I'll report back on how it works.


Er, I have only general rather than specific knowledge here, but won't
ferrites on coax degrade the signal it carries?

Its common practice to put ferrites around coax cable to stop
common-mode currents on the outer. I tried to measure the effect of this
on the signal today, but the ferrites didn't seem to be having any
discernible effect on anything.

The message . 4
from mike ring contains these words:


Er, I have only general rather than specific knowledge here, but won't
ferrites on coax degrade the signal it carries?


I would think so, though I'm not an expert, too.

I use an inline coax filter for the aerial.

The ferrite is meant to 'degrade' the signal carried on the outside of
the screen. It has no effect whatsoever on the signal carried by the
inner conductor.

The idea is to reduce injection of unwanted out of band interference
signals into the TV chassis The lengh of co-ax is effectively a long
wire antenna with a lump of alloywork (TV antenna) stuck on the end.

--
Regards, John.

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"Ben" wrote in message
...
Camouflage wrote:
Apologies if multiple copies arrive

I should think so, its confusing the hell out of me!

I can only apologise again. Having thought the problem was solved, I've
just had two posts fail on DialUp - they haven't sorted out my ADSL yet -
with the new ISP's news server (groan) but as before I'll wait awhile before
reposting them!

Typical - they come up with something that on the face of it has the
potential to be useful, then they make sure it isn't. What exactly do
you mean by 'under wraps'?

Perhaps the wrong expression, but this site ...
http://www.tetrawatch.net/links/links.php?id=find
.... is saying TETRA will not be put in the mast finder site until the
network is complete. Not much help meanwhile in finding your local source
of TV interference, or to planning democracy!

Are we talking 'never to be revealed' here,
or just 'keep quiet about it until Airwave rollout is complete'?

The latter

Er, I have only general rather than specific knowledge here, but won't
ferrites on coax degrade the signal it carries?

Its common practice to put ferrites around coax cable to stop
common-mode currents on the outer.

Yes, I understand that now ...

Java Jive wrote:
http://www.tetrawatch.net/links/links.php?id=find

Grrrr!!!
So the Telecommunications Masts (Registration) Bill (2004) says that the
operators must inform ofcom within one month of their erection s******
and ofcom must publish this information on its website within one month
of receiving it, but the home office thinks its above the law. Thats
what really ****es me off about this ****ing government. They keep
trying to push laws through that are so general and sweeping it'll make
you a criminal if you so much as set foot out of your front door, but
they don't think the law applies to them. I would say roll on May 5th,
except I can still remember Michael "I know there are children here, I
can smell them" Howard when he was home secretary, and I don't think any
of us want to go back to that.

Very good article on that site too
http://www.mindcontrolforums.com/tetra.htm
I thought these mast campaigners where a load of paranoid hysterical
nutters, but thats a really good introductory article.

In article , Java Jive
writes

"Ben" wrote in message
...
Camouflage wrote:
Apologies if multiple copies arrive

I should think so, its confusing the hell out of me!

I can only apologise again. Having thought the problem was solved, I've
just had two posts fail on DialUp - they haven't sorted out my ADSL yet -
with the new ISP's news server (groan) but as before I'll wait awhile before
reposting them!

Typical - they come up with something that on the face of it has the
potential to be useful, then they make sure it isn't. What exactly do
you mean by 'under wraps'?

Perhaps the wrong expression, but this site ...
http://www.tetrawatch.net/links/links.php?id=find
... is saying TETRA will not be put in the mast finder site until the
network is complete. Not much help meanwhile in finding your local source
of TV interference, or to planning democracy!

And from that same site scary stuff eh;?...

"Still unconvinced of how secret these masts are? Well, if you ask
someone who is electro-sensitive, perhaps who has been made electro-
sensitive by TETRA, we just feel them. They're quite distinctive, and we
have found a number of masts just by feeling them. And you can't keep
that a secret!"

--
Tony Sayer

In article , Ben
writes
Very good article on that site too
http://www.mindcontrolforums.com/tetra.htm
I thought these mast campaigners where a load of paranoid hysterical
nutters, but thats a really good introductory article.

Yes when they get simple EMC problems, and they are causing mind
control....
--
Tony Sayer

Ah! I get it. Thanks for the explanation ...

"Johnny B Good" wrote in message
...

The ferrite is meant to 'degrade' the signal carried on the outside of
the screen. It has no effect whatsoever on the signal carried by the
inner conductor.

The idea is to reduce injection of unwanted out of band interference
signals into the TV chassis The lengh of co-ax is effectively a long
wire antenna with a lump of alloywork (TV antenna) stuck on the end.

Note: This is my second attempt to send this via DialUp. I've checked with
two newsreaders that the original post does not appear on three news servers
before reposting it.

tony sayer wrote:
In article , Java Jive
writes

"Ben" wrote in message
...

Camouflage wrote:

Apologies if multiple copies arrive

I should think so, its confusing the hell out of me!

I can only apologise again. Having thought the problem was solved, I've
just had two posts fail on DialUp - they haven't sorted out my ADSL yet -
with the new ISP's news server (groan) but as before I'll wait awhile before
reposting them!


Typical - they come up with something that on the face of it has the
potential to be useful, then they make sure it isn't. What exactly do
you mean by 'under wraps'?

Perhaps the wrong expression, but this site ...
http://www.tetrawatch.net/links/links.php?id=find
... is saying TETRA will not be put in the mast finder site until the
network is complete. Not much help meanwhile in finding your local source
of TV interference, or to planning democracy!


And from that same site scary stuff eh;?...

"Still unconvinced of how secret these masts are? Well, if you ask
someone who is electro-sensitive, perhaps who has been made electro-
sensitive by TETRA, we just feel them. They're quite distinctive, and we
have found a number of masts just by feeling them. And you can't keep
that a secret!"

Did you see that "should I be scared of" series with that Hammond guy
from Top Gear? They did an experiment where a load of supposedly
sensitive people were put up in a big house with a temporary mast
outside. They were told the mast was on for one period of time and off
for another period, but the actual periods of time it was really
switched on and off were different. You therefore had the four
combinations - off and they think its off, off and they think its on, on
and they think its off, on and they think its on. As I recall, there was
a very good correlation between reported symptoms and them thinking the
mast was on, but no correlation between their reported symptoms and the
mast actually being on.

Ben wrote in news:[email protected]
reader03.plus.net:

I would say roll on May 5th,
except I can still remember Michael "I know there are children here, I
can smell them" Howard when he was home secretary, and I don't think any
of us want to go back to that.

Yes, it's a bugger.

"No matter who you vote for, the Government still gets in"

mike