HomeCinemaBanter

HomeCinemaBanter (http://www.homecinemabanter.com/index.php)
-   UK digital tv (http://www.homecinemabanter.com/forumdisplay.php?f=5)
-   -   Ham radio Interference (http://www.homecinemabanter.com/showthread.php?t=62212)

Steve Terry[_2_] February 27th 09 12:01 AM

Ham radio Interference
 

"JN" [email protected] wrote in message
...
Graham. wrote:
"David" wrote in message
...
I always thought Radio Hams bent over backwards to solve these things
even
if their not own fault.

I would write to their club body, RSGB.

Worst comes to the worst stick a pin through his coax.
Only joking, but I know of a TV debt collector who did that.


That was common practice in the 60s and 70s.
VHF downloads tended to have stranded inners so the pin easily found its
mark.


Try and find an old Atari 520ST this certainly annoyed a local ham who
was blasting through my TV, wiped out whole bands of his reception. I
did talk to him but he was only interested in his own problem. The hobby
does seem to attract some of the strangest humans I've met (not me
obviously).


So you advocate intentionally radiating unlicensed RF to cause interference?

I bet you believe Ducks are made of wood?

Ducks float so does wood, therefore ducks are made of wood,
No? Then why do you believe RF interferes with Audio?

Steve Terry



Steve Terry[_2_] February 27th 09 12:06 AM

Ham radio Interference
 
"James R" wrote in message
...
"Dave H" wrote in message
...

snip
It would be in his own interest to solve the interference as OFCOM will be
on your side on this one.


What an assumption!
It's possible Ofcom officals wouldn't understand cause and effect
as much as you?

But it's their job to do so

Steve Terry




Steve Terry[_2_] February 27th 09 12:13 AM

Ham radio Interference
 
"Dave Farrance" wrote in message
...
Ian Jackson wrote:

In message , James R

snip
Of the hams that I knew in my student days, 1980ish, most would work
entirely legally but I knew more than one that surreptitiously added a
high-power booster to their kit.
Dave Farrance


Would that be one of those high power boosters that transmits
Audio equipment absorbing waves?

I blame creationism for all this woolly thinking ;-)

Steve Terry



Graham.[_3_] February 27th 09 12:47 AM

Ham radio Interference
 

I have a Ham Radio enthusiast living some 200 yards away with a big set
of aerianalia. When he turns this in my direction and talks to his
contact, my picture on Sky jumps all over the place to the extent it is
unwatchable. Just like having the vertical hold set wrong. The sound on
my amplifier also cuts out when he is talking. Sky box is connected to a
video recorder by scart and then to the TV, in the next room, by RF
output (they don't make scart leads long enough).

(Turned on the electric keyboard the other day and there he was in
glorious SSB blasting out from the speakers)

I am also getting some mild noise-type interference on other occasions
but cannot be sure it is the same source.

Have been round to see him, nice chap, but he doesn't think he is doing
anything wrong and is not obliged to solve my problem.
snip

As long as he has checked the output of this TX to be clean, he hasn't.

You will have to contact Ofcom, who will help you fit filters to your
equipment that isn't supposed to receive radio signals.

Don't worry, it's very unlikely you'll be prosecuted for receiving
transmitions you aren't licensed to
Steve Terry


You don't NEED to be licenced to listen to amateur radio transmissions.
This is not a legal requirement in the UK. The equipment is not designed
to pick up mateur radio transmissions, so it isn't even a receiver meant
for
that purpose! The interference is being caused by the radio amateur and
he must attempt to sort it out.
The original poster could always buy a number of Devolo Homeplug devices
which will ruin his HF reception instantly. I bet he would soon
complain.


You seem to have trouble understanding cause and effect?

As you say his equipment isn't designed to receive radio signals,
so it must be at fault?

Or are you saying the radio amateur is transmitting some sort of audio
frequency induction transmission? As used by some cave explorers

Steve Terry


His first and second sentences is an accurate statements of fact.

In his third sentence James is referring to the OPs equipment,
and I agree with him.
The amplifier and musical keyboard are clearly not radio receivers.
End of.

The satellite box, VCR and TV set clearly are radio receivers,
but one shouldn't pre-suppose that the unwanted signals are
being received via their tuners.

Fourth sentence seems to imply the amateur has an obligation under
the terms of his licence to intervene, this is incorrect.
It might well be the neighbourly thing to do though, but he should
be careful what he does in a strangers house because of his liability
should he damage something.

Last sentence is something frivolous about Homeplugs.
I have no opinion about this.

--
Graham.

%Profound_observation%



Graham.[_3_] February 27th 09 01:17 AM

Ham radio Interference
 


"Steve Terry" wrote in message
...
"Ian Jackson" wrote in message
...
In message
,
Erica Nurney writes
On 25 Feb, 16:18, Dave H wrote:

snip
What he is doing is definitely wrong (ie illegal) if it can be proven
that it is his equipment causing the interference.


It's not quite as simple as that. Although his equipment is 'causing' the
interference,

snip


What are you on about? What causing?

The effect is RF breakthrough on audio equipment,
the cause is poorly designed audio equipment.

There seems to be a serious lack of understanding of cause and effect on
this NG?

Steve Terry


Ian is well aware of that, hence the inverted commas.
He's been licensed a lot longer than you, and me.

--
Graham.
G3ZVT

%Profound_observation%



Roderick Stewart[_2_] February 27th 09 07:22 AM

Ham radio Interference
 
In article , Steve Terry wrote:
Ducks float so does wood, therefore ducks are made of wood,
No? Then why do you believe RF interferes with Audio?


RF can interfere with audio, video, servo controls, telemetry, or the
fillings in people's teeth.

Rod.
--
Virtual Access V6.3 free usenet/email software from
http://sourceforge.net/projects/virtual-access/


Ian Jackson[_2_] February 27th 09 09:34 AM

Ham radio Interference
 
In message , Steve Terry
writes
"James R" wrote in message
...
"Dave H" wrote in message
...

snip
It would be in his own interest to solve the interference as OFCOM will be
on your side on this one.


What an assumption!
It's possible Ofcom officals wouldn't understand cause and effect
as much as you?

But it's their job to do so

Steve Terry


In the good olde days, there was at least one Post Office interference
inspector who seemed to be convinced that all interference was caused by
harmonics - even if the affected equipment was audio-only.
--
Ian

Graham.[_3_] February 27th 09 11:16 AM

Ham radio Interference
 

Ducks float so does wood, therefore ducks are made of wood,
No? Then why do you believe RF interferes with Audio?


RF can interfere with audio, video, servo controls, telemetry, or the
fillings in people's teeth.

Rod.



This is just an argument about semantics.
Sometimes it's useful look at it from the point of view of the
susceptibility
of the interfered apparatus, rather than the culpability of the radiating
apparatus,
but no doubt the man on the Clapham Omnibus would see it the way you do.


--
Graham.

%Profound_observation%



tony sayer February 27th 09 11:29 AM

Ham radio Interference
 
In article , Ian Jackson ianREMOVET
scribeth thus
In message , Steve Terry
writes
"James R" wrote in message
...
"Dave H" wrote in message
...

snip
It would be in his own interest to solve the interference as OFCOM will be
on your side on this one.


What an assumption!
It's possible Ofcom officals wouldn't understand cause and effect
as much as you?

But it's their job to do so

Steve Terry


In the good olde days, there was at least one Post Office interference
inspector who seemed to be convinced that all interference was caused by
harmonics - even if the affected equipment was audio-only.


They, in general, weren't engineers .. but seem to be very good at
paperwork;)...
--
Tony Sayer


charles February 27th 09 12:39 PM

Ham radio Interference
 
In article ,
tony sayer wrote:
In article , Ian Jackson ianREMOVET
scribeth thus
In message , Steve Terry
writes
"James R" wrote in message
...
"Dave H" wrote in message
...
snip
It would be in his own interest to solve the interference as OFCOM
will be on your side on this one.


What an assumption!
It's possible Ofcom officals wouldn't understand cause and effect
as much as you?

But it's their job to do so

Steve Terry


In the good olde days, there was at least one Post Office interference
inspector who seemed to be convinced that all interference was caused by
harmonics - even if the affected equipment was audio-only.


They, in general, weren't engineers .. but seem to be very good at
paperwork;)...


most of the ones I met were engineers, but the new breed from the late
80s, fitted your description.

--
From KT24 - in "Leafy Surrey"

Using a RISC OS computer running v5.11



All times are GMT +1. The time now is 09:20 AM.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
HomeCinemaBanter.com