George Bush video camera jammer

[Pat Sproule]

Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a big
black van with antennae hanging all over it, and as it passes close by the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as the
van passes in shot) the recording breaks up and the camera would appear to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed me the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The break-up
does not look like normal DV dropouts or anything like that - the recording
momentarily goes blocky and then reverts to nice clean colour bars. At first
I thought the student had pre-recorded bars on his tape and we were simply
seeing the recording stop at that point but he swears the tape was brand
new, out of the packet, with absolutely nothing recorded on it. The same
thing apparently occurred on all the DV based cameras.

A Google search turns up nothing on DV camera Jamming or George Bush and
Camera Jamming or Scrambling. I would have thought that this was very
difficult or nearly impossible to do - What do you think?

Patrick Sproule
Lecturer, TV Production, Charles Sturt University.

 

[Pat Sproule]

Ok - so I found this about mobile phone cameras, but I am doubting that DV's
are fitted with something similar...

"Iceberg Systems is beta-testing Safe Haven, which combines hardware
transmitters with a small piece of control software loaded into a camera
phone handset. When the handset is taken into a room or building containing
the Safe Haven hardware, the phone is instructed to deactivate the imaging
systems. The systems are reactivated when the handset is out of range."

Regards - Pat.


"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...

Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news
crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a big
black van with antennae hanging all over it, and as it passes close by the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as the
van passes in shot) the recording breaks up and the camera would appear to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed me
the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The
break-up
does not look like normal DV dropouts or anything like that - the
recording
momentarily goes blocky and then reverts to nice clean colour bars. At
first
I thought the student had pre-recorded bars on his tape and we were simply
seeing the recording stop at that point but he swears the tape was brand
new, out of the packet, with absolutely nothing recorded on it. The same
thing apparently occurred on all the DV based cameras.

A Google search turns up nothing on DV camera Jamming or George Bush and
Camera Jamming or Scrambling. I would have thought that this was very
difficult or nearly impossible to do - What do you think?

Patrick Sproule
Lecturer, TV Production, Charles Sturt University.

 

[Rod Speed]

Its just the transmissions from the van fucking
up the camera, not deliberate jamming.

Pat Sproule <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...

Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a big
black van with antennae hanging all over it, and as it passes close by the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as the
van passes in shot) the recording breaks up and the camera would appear to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed me the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The break-up
does not look like normal DV dropouts or anything like that - the recording
momentarily goes blocky and then reverts to nice clean colour bars. At first
I thought the student had pre-recorded bars on his tape and we were simply
seeing the recording stop at that point but he swears the tape was brand
new, out of the packet, with absolutely nothing recorded on it. The same
thing apparently occurred on all the DV based cameras.

A Google search turns up nothing on DV camera Jamming or George Bush and
Camera Jamming or Scrambling. I would have thought that this was very
difficult or nearly impossible to do - What do you think?

Patrick Sproule
Lecturer, TV Production, Charles Sturt University.

 

[Russ]

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...

Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news
crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a big
black van with antennae hanging all over it, and as it passes close by the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as the
van passes in shot) the recording breaks up and the camera would appear to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed me
the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The
break-up
does not look like normal DV dropouts or anything like that - the
recording
momentarily goes blocky and then reverts to nice clean colour bars. At
first
I thought the student had pre-recorded bars on his tape and we were simply
seeing the recording stop at that point but he swears the tape was brand
new, out of the packet, with absolutely nothing recorded on it. The same
thing apparently occurred on all the DV based cameras.

I think you'd want to see the other tapes from the DV-style cameras - did
they all have clean bars? Were they EBU or SMPTE - that is, were they
transmitted or triggered from the camera's internal generator? If the
American van was generating it, I would have thought it'd be SMPTE, if its
the camera's bars, they'd normally be EBU.

It sounds to me very much like your student had striped the tape with bars
beforehand, but if he reckons the tape was new, it seems rather
extraordinary to get such a clean recording. Was there any kind of time-code
break?

Russ.

 

[Pat Sproule]

They were EBU bars and looked to be from the camera generator. There was no
timecode break - perfectly continuous across the transition from pictures to
bars and back again. Normaly a camera start / stop transition on DV is
fairly clean. This one breaks up into macroblocks briefly. I would like to
see the other tapes but chances of that are slim.

Pat.

"Russ" <russ_spmtrp@hotmail.com> wrote in message
news:bo1n3v$16kse1$1@ID-192123.news.uni-berlin.de...

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...
Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently
tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news
crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a big
black van with antennae hanging all over it, and as it passes close by
the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as
the
van passes in shot) the recording breaks up and the camera would appear
to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed me
the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The
break-up
does not look like normal DV dropouts or anything like that - the
recording
momentarily goes blocky and then reverts to nice clean colour bars. At
first
I thought the student had pre-recorded bars on his tape and we were
simply
seeing the recording stop at that point but he swears the tape was brand
new, out of the packet, with absolutely nothing recorded on it. The same
thing apparently occurred on all the DV based cameras.

I think you'd want to see the other tapes from the DV-style cameras - did
they all have clean bars? Were they EBU or SMPTE - that is, were they
transmitted or triggered from the camera's internal generator? If the
American van was generating it, I would have thought it'd be SMPTE, if its
the camera's bars, they'd normally be EBU.

It sounds to me very much like your student had striped the tape with bars
beforehand, but if he reckons the tape was new, it seems rather
extraordinary to get such a clean recording. Was there any kind of
time-code
break?

Russ.

 

[Russ]

It all sounds very strange -since the SX/SP gear was unaffected - at the pro
end, they aren't a mile away from the DVCAM/DVCPRO cameras apart from the
VTR section. I don't know anyone in the media end of things, but I'll ask a
couple of production people with connections back to news and see if anyone
knows anything. Perhaps you'd have more luck asking in a broadcast-related
forum.

Russ.


"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:4G1pb.1140$xL4.29805@nnrp1.ozemail.com.au...

They were EBU bars and looked to be from the camera generator. There was
no
timecode break - perfectly continuous across the transition from pictures
to
bars and back again. Normaly a camera start / stop transition on DV is
fairly clean. This one breaks up into macroblocks briefly. I would like to
see the other tapes but chances of that are slim.

Pat.

"Russ" <russ_spmtrp@hotmail.com> wrote in message
news:bo1n3v$16kse1$1@ID-192123.news.uni-berlin.de...

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...
Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently
tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news
crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a
big
black van with antennae hanging all over it, and as it passes close by
the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as
the
van passes in shot) the recording breaks up and the camera would
appear
to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed
me
the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The
break-up
does not look like normal DV dropouts or anything like that - the
recording
momentarily goes blocky and then reverts to nice clean colour bars. At
first
I thought the student had pre-recorded bars on his tape and we were
simply
seeing the recording stop at that point but he swears the tape was
brand
new, out of the packet, with absolutely nothing recorded on it. The
same
thing apparently occurred on all the DV based cameras.

I think you'd want to see the other tapes from the DV-style cameras -
did
they all have clean bars? Were they EBU or SMPTE - that is, were they
transmitted or triggered from the camera's internal generator? If the
American van was generating it, I would have thought it'd be SMPTE, if
its
the camera's bars, they'd normally be EBU.

It sounds to me very much like your student had striped the tape with
bars
beforehand, but if he reckons the tape was new, it seems rather
extraordinary to get such a clean recording. Was there any kind of
time-code
break?

Russ.

 

[Oldus Fartus]

In news:bo4h6o$17vggn$1@ID-200296.news.uni-berlin.de,
CyBorg 0091 <lab1m9@pctas.com> wrote these words:

| My car breaks down TV and radio transmissions from about 200m radial
| to the car.
| It is a Rotary engine.
| It emmits a freq of some kind not sure why,that overrides or runs on
| all AM to low UHF freq.
| Just its pitch possibly
|
| Maybe the Bush mobile was modified in some way,maybe more power like
| a turbo or similar and was done like a backyard modification to just
| the trip it did.
|
| Someone may be able to explain exactly why my car affects these
| signals.
|

Others should be able to explain it better than I, but normally such
interference is cause by faults in your ignition system - such as faulty
wiring, spark plug gaps set too high, or bad leads.

You should probably get it fixed, before someone reports it to the
relevant authorities.

--
Cheers
Oldus Fartus

 

[CyBorg 0091]

My car breaks down TV and radio transmissions from about 200m radial to the
car.
It is a Rotary engine.
It emmits a freq of some kind not sure why,that overrides or runs on all AM
to low UHF freq.
Just its pitch possibly

Maybe the Bush mobile was modified in some way,maybe more power like a turbo
or similar and was done like a backyard modification to just the trip it
did.

Someone may be able to explain exactly why my car affects these signals.

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...

Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news
crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a big
black van with antennae hanging all over it, and as it passes close by the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as the
van passes in shot) the recording breaks up and the camera would appear to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed me
the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The
break-up
does not look like normal DV dropouts or anything like that - the
recording
momentarily goes blocky and then reverts to nice clean colour bars. At
first
I thought the student had pre-recorded bars on his tape and we were simply
seeing the recording stop at that point but he swears the tape was brand
new, out of the packet, with absolutely nothing recorded on it. The same
thing apparently occurred on all the DV based cameras.

A Google search turns up nothing on DV camera Jamming or George Bush and
Camera Jamming or Scrambling. I would have thought that this was very
difficult or nearly impossible to do - What do you think?

Patrick Sproule
Lecturer, TV Production, Charles Sturt University.

 

[Pat Sproule]

The students have been researching this one and have turned up two
things....

First being that the lead van is indeed supposed to be a security / radio
jammer vehicle (but that's about all the information they could find - it
seems George controls the internet as well), and the second was mention
newer generation mobile phones with cameras that have a chip that can be
activated with RF to disable the camera feature when they are taken into
sensitive areas.

They are now chasing up some info from American news crews.

Pat.


"Oldus Fartus" <denisand@netNOSPAMspace.net.au> wrote in message
news:bo4isl$28qj$1@otis.netspace.net.au...

In news:bo4h6o$17vggn$1@ID-200296.news.uni-berlin.de,
CyBorg 0091 <lab1m9@pctas.com> wrote these words:

| My car breaks down TV and radio transmissions from about 200m radial
| to the car.
| It is a Rotary engine.
| It emmits a freq of some kind not sure why,that overrides or runs on
| all AM to low UHF freq.
| Just its pitch possibly
|
| Maybe the Bush mobile was modified in some way,maybe more power like
| a turbo or similar and was done like a backyard modification to just
| the trip it did.
|
| Someone may be able to explain exactly why my car affects these
| signals.
|

Others should be able to explain it better than I, but normally such
interference is cause by faults in your ignition system - such as faulty
wiring, spark plug gaps set too high, or bad leads.

You should probably get it fixed, before someone reports it to the
relevant authorities.

--
Cheers
Oldus Fartus

 

[Rod Speed]

Pat Sproule <patsproule@ozemail.com.au> wrote in message
news:d9xpb.220$9e.11466@nnrp1.ozemail.com.au...

The students have been researching
this one and have turned up two things....

First being that the lead van is indeed supposed
to be a security / radio jammer vehicle

Bullshit on the 'jammer'

(but that's about all the information they could find
- it seems George controls the internet as well),

Completely off with the fairys now.

and the second was mention newer generation mobile phones with
cameras that have a chip that can be activated with RF to disable
the camera feature when they are taken into sensitive areas.

Completely off with the fucking fairys now.

They are now chasing up some info from American news crews.

Who wouldnt have a fucking clue about the technical detail anyway.

"Oldus Fartus" <denisand@netNOSPAMspace.net.au> wrote in message
news:bo4isl$28qj$1@otis.netspace.net.au...
In news:bo4h6o$17vggn$1@ID-200296.news.uni-berlin.de,
CyBorg 0091 <lab1m9@pctas.com> wrote these words:

| My car breaks down TV and radio transmissions from about 200m radial
| to the car.
| It is a Rotary engine.
| It emmits a freq of some kind not sure why,that overrides or runs on
| all AM to low UHF freq.
| Just its pitch possibly
|
| Maybe the Bush mobile was modified in some way,maybe more power like
| a turbo or similar and was done like a backyard modification to just
| the trip it did.
|
| Someone may be able to explain exactly why my car affects these
| signals.
|

Others should be able to explain it better than I, but normally such
interference is cause by faults in your ignition system - such as faulty
wiring, spark plug gaps set too high, or bad leads.

You should probably get it fixed, before someone reports it to the
relevant authorities.

--
Cheers
Oldus Fartus

 

[CyBorg 0091]

Yup I forgot all about the electronic pulsing through the leads.
It also has two coils and runs at high revs,10,000rpm

They are not faulty however they may not be insulated enough or what ever
the term is to cut down emmiting freq.
Maybe the wrong sort of leads altogether,however they are not the wire
leads,they are silicon or whatever,graphite?

I do know it emmits illegally and always has and is not according to
possible emmision standards,however it is a preformance car,and there is not
alot I can do about it.
It has done it for over 7 years now,but I only drive in populated areas when
absolutly needed.

It would take a very high and strong freq to interfere with cameras or
household goods?
No real expert here.





"Oldus Fartus" <denisand@netNOSPAMspace.net.au> wrote in message
news:bo4isl$28qj$1@otis.netspace.net.au...

In news:bo4h6o$17vggn$1@ID-200296.news.uni-berlin.de,
CyBorg 0091 <lab1m9@pctas.com> wrote these words:

| My car breaks down TV and radio transmissions from about 200m radial
| to the car.
| It is a Rotary engine.
| It emmits a freq of some kind not sure why,that overrides or runs on
| all AM to low UHF freq.
| Just its pitch possibly
|
| Maybe the Bush mobile was modified in some way,maybe more power like
| a turbo or similar and was done like a backyard modification to just
| the trip it did.
|
| Someone may be able to explain exactly why my car affects these
| signals.
|

Others should be able to explain it better than I, but normally such
interference is cause by faults in your ignition system - such as faulty
wiring, spark plug gaps set too high, or bad leads.

You should probably get it fixed, before someone reports it to the
relevant authorities.

--
Cheers
Oldus Fartus

 

[KoRRupT]

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...

Perhaps some of you have a take on this one...

If the van did transmit some kind of 'coloured bar' jamming signal, the DV
camera would need to be able to pick it up, decode it, digitise it and write
it to the tape...

sounds like science fiction...

 

[Pat Sproule]

Well - I didn't suggest that it was broadcasting bars to the camera - only
that the camera was switching to it's bars generator. I am just as sceptical
as you - even a sceptical as 'Rod Speed' appears to be and as such I remain
unconvinced that jamming has happened. However, having seen the tape and the
break-up I know that something other than a camera stop/start transition
occurred at either end of the bars on tape and that the switch to bars
occurred when the van came into close proximity in the shot and switched
back when it was some distance away (as evidenced in the shot that came
back). The initial transition appears as a DV head clog would, but only
briefly.

Re the mobile phone Rod, This one is from an electronics engineering
magazine (printed). Perhaps not an infallible source but better than the
net.

Pat.


"KoRRupT" <me@nowhere> wrote in message
news:3fa74568$1@duster.adelaide.on.net...

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...
Perhaps some of you have a take on this one...

If the van did transmit some kind of 'coloured bar' jamming signal, the DV
camera would need to be able to pick it up, decode it, digitise it and
write
it to the tape...

sounds like science fiction...

 

[Rod Speed]

Pat Sproule <patsproule@ozemail.com.au> wrote in message
news:OZSpb.548$Ka1.11151@nnrp1.ozemail.com.au...

Well - I didn't suggest that it was broadcasting bars to the camera
- only that the camera was switching to it's bars generator. I am
just as sceptical as you - even a sceptical as 'Rod Speed' appears
to be and as such I remain unconvinced that jamming has happened.

Yeah, they wouldnt be that stupid. It would be so obvious what they
were doing if they were stupid enough to attempt deliberate jamming.

Its gotta be just some transmissions from the van, presumably
used to communicate back to whatever they use for comms,
getting into that particular camera and fucking it up unintentionally.

The van is obviously just there in case the prez gets shot etc.
And maybe its part of the system that allows the prez to nuke
the ruskys back to the stone age if they launch on the US etc.

However, having seen the tape and the break-up I know that
something other than a camera stop/start transition occurred
at either end of the bars on tape and that the switch to bars
occurred when the van came into close proximity in the shot
and switched back when it was some distance away (as
evidenced in the shot that came back).

Sure, easy to see how higher powered transmissions
from the van could do that. Thats not jamming tho.

The initial transition appears as a
DV head clog would, but only briefly.

Re the mobile phone Rod, This one is from
an electronics engineering magazine (printed).

Its bullshit. If it was that easy, they'd be using
then in changing rooms etc right from the start.

Perhaps not an infallible source but better than the net.

Depends on the rag. It may well have got it from the net.

"KoRRupT" <me@nowhere> wrote in message
news:3fa74568$1@duster.adelaide.on.net...

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...
Perhaps some of you have a take on this one...

If the van did transmit some kind of 'coloured bar' jamming signal, the DV
camera would need to be able to pick it up, decode it, digitise it and
write
it to the tape...

sounds like science fiction...

 

[Allan]

And it would not make it go to colour Bars..
There is no way a Transmitter can transmit such a Strong signal that it
would
(a)erase / jamm a signal from the Video heads
(b)create a Colour bar signal..


"Rod Speed" <rod_speed@yahoo.com> wrote in message
news:bo1a3v$163nhv$1@ID-69072.news.uni-berlin.de...

Its just the transmissions from the van fucking
up the camera, not deliberate jamming.

Pat Sproule <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...

Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently
tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news
crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a big
black van with antennae hanging all over it, and as it passes close by
the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as
the
van passes in shot) the recording breaks up and the camera would appear
to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed me
the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The
break-up
does not look like normal DV dropouts or anything like that - the
recording
momentarily goes blocky and then reverts to nice clean colour bars. At
first
I thought the student had pre-recorded bars on his tape and we were
simply
seeing the recording stop at that point but he swears the tape was brand
new, out of the packet, with absolutely nothing recorded on it. The same
thing apparently occurred on all the DV based cameras.

A Google search turns up nothing on DV camera Jamming or George Bush and
Camera Jamming or Scrambling. I would have thought that this was very
difficult or nearly impossible to do - What do you think?

Patrick Sproule
Lecturer, TV Production, Charles Sturt University.

 

[Allan]

And whats the betting the Tape did have colour bars already on it, thus when
the recording signal failed due to the high energy RF these Guys where
TXing, thus allowed the original recording to come through,
As most Broadcast VTRs and DV VTR's use a flying erase head. There would be
no apparent Signal interrupition when the interference started ,in the
playback of the tape.

Allan

"Rod Speed" <rod_speed@yahoo.com> wrote in message
news:bo8vo5$1b1h1i$1@ID-69072.news.uni-berlin.de...

Pat Sproule <patsproule@ozemail.com.au> wrote in message
news:OZSpb.548$Ka1.11151@nnrp1.ozemail.com.au...

Well - I didn't suggest that it was broadcasting bars to the camera
- only that the camera was switching to it's bars generator. I am
just as sceptical as you - even a sceptical as 'Rod Speed' appears
to be and as such I remain unconvinced that jamming has happened.

Yeah, they wouldnt be that stupid. It would be so obvious what they
were doing if they were stupid enough to attempt deliberate jamming.

Its gotta be just some transmissions from the van, presumably
used to communicate back to whatever they use for comms,
getting into that particular camera and fucking it up unintentionally.

The van is obviously just there in case the prez gets shot etc.
And maybe its part of the system that allows the prez to nuke
the ruskys back to the stone age if they launch on the US etc.

However, having seen the tape and the break-up I know that
something other than a camera stop/start transition occurred
at either end of the bars on tape and that the switch to bars
occurred when the van came into close proximity in the shot
and switched back when it was some distance away (as
evidenced in the shot that came back).

Sure, easy to see how higher powered transmissions
from the van could do that. Thats not jamming tho.

The initial transition appears as a
DV head clog would, but only briefly.

Re the mobile phone Rod, This one is from
an electronics engineering magazine (printed).

Its bullshit. If it was that easy, they'd be using
then in changing rooms etc right from the start.

Perhaps not an infallible source but better than the net.

Depends on the rag. It may well have got it from the net.


"KoRRupT" <me@nowhere> wrote in message
news:3fa74568$1@duster.adelaide.on.net...

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...
Perhaps some of you have a take on this one...

If the van did transmit some kind of 'coloured bar' jamming signal,
the DV
camera would need to be able to pick it up, decode it, digitise it and
write
it to the tape...

sounds like science fiction...

 

[Rod Speed]

Allan <allanaws@hotmail.com> wrote in message
newsACqb.76$aT.56@news-server.bigpond.net.au...

And it would not make it go to colour Bars..

You dont know that if the camera has an internal color bars function.

There is no way a Transmitter can transmit
such a Strong signal that it would
(a)erase / jamm a signal from the Video heads
(b)create a Colour bar signal..

Doesnt need to create it, just monster the camera
into that mode that it can do on user command.

"Rod Speed" <rod_speed@yahoo.com> wrote in message
news:bo1a3v$163nhv$1@ID-69072.news.uni-berlin.de...
Its just the transmissions from the van fucking
up the camera, not deliberate jamming.

Pat Sproule <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...

Perhaps some of you have a take on this one...

One of my students (in a University TV production course) recently
tagged
along with a few of the commercial news crews covering the George Bush
visit. He had his own DV video camera - a Canon XL1S. Some of the news
crews
were on DVCPro, some on Betacam SX and some on Betacam SP.

At one stage they were covering George's cavalcade of vehicles as they
travelled from the airport to Parliament House (I gather) and the
interesting thing is this..... right before George's two limos is a big
black van with antennae hanging all over it, and as it passes close by
the
news crews it would appear it has jammed the recording on some of the
cameras - specifically the DV based ones (DV and DVCPro). The cameras
appeared to operate normally when shooting but upon playback (just as
the
van passes in shot) the recording breaks up and the camera would appear
to
have reverted to it's colour bars generator.

At first I was quite sceptical about this - until the student showed me
the
tape. You can quite clearly see the points the recording breaks up and
returns to normal - both within a certain proximity of the van. The
break-up
does not look like normal DV dropouts or anything like that - the
recording
momentarily goes blocky and then reverts to nice clean colour bars. At
first
I thought the student had pre-recorded bars on his tape and we were
simply
seeing the recording stop at that point but he swears the tape was brand
new, out of the packet, with absolutely nothing recorded on it. The same
thing apparently occurred on all the DV based cameras.

A Google search turns up nothing on DV camera Jamming or George Bush and
Camera Jamming or Scrambling. I would have thought that this was very
difficult or nearly impossible to do - What do you think?

Patrick Sproule
Lecturer, TV Production, Charles Sturt University.

 

[Rod Speed]

Allan <allanaws@hotmail.com> wrote in message
news:mKCqb.88$aT.57@news-server.bigpond.net.au...

And whats the betting the Tape did have colour bars already on it,

Sure, thats one obvious possibility.

The other is that the camera can generate those and the
substantial RF from the van managed to put it into that mode.

thus when the recording signal failed due to the high energy RF these
Guys where TXing, thus allowed the original recording to come through,

As most Broadcast VTRs and DV VTR's use a flying erase head.
There would be no apparent Signal interrupition when the interference
started ,in the playback of the tape.

Its more likely that the substantial RF just got
the camera to produce the color bars itself, just
like its capable of doing on user command.

"Rod Speed" <rod_speed@yahoo.com> wrote in message
news:bo8vo5$1b1h1i$1@ID-69072.news.uni-berlin.de...

Pat Sproule <patsproule@ozemail.com.au> wrote in message
news:OZSpb.548$Ka1.11151@nnrp1.ozemail.com.au...

Well - I didn't suggest that it was broadcasting bars to the camera
- only that the camera was switching to it's bars generator. I am
just as sceptical as you - even a sceptical as 'Rod Speed' appears
to be and as such I remain unconvinced that jamming has happened.

Yeah, they wouldnt be that stupid. It would be so obvious what they
were doing if they were stupid enough to attempt deliberate jamming.

Its gotta be just some transmissions from the van, presumably
used to communicate back to whatever they use for comms,
getting into that particular camera and fucking it up unintentionally.

The van is obviously just there in case the prez gets shot etc.
And maybe its part of the system that allows the prez to nuke
the ruskys back to the stone age if they launch on the US etc.

However, having seen the tape and the break-up I know that
something other than a camera stop/start transition occurred
at either end of the bars on tape and that the switch to bars
occurred when the van came into close proximity in the shot
and switched back when it was some distance away (as
evidenced in the shot that came back).

Sure, easy to see how higher powered transmissions
from the van could do that. Thats not jamming tho.

The initial transition appears as a
DV head clog would, but only briefly.

Re the mobile phone Rod, This one is from
an electronics engineering magazine (printed).

Its bullshit. If it was that easy, they'd be using
then in changing rooms etc right from the start.

Perhaps not an infallible source but better than the net.

Depends on the rag. It may well have got it from the net.


"KoRRupT" <me@nowhere> wrote in message
news:3fa74568$1@duster.adelaide.on.net...

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...
Perhaps some of you have a take on this one...

If the van did transmit some kind of 'coloured bar' jamming signal,
the DV
camera would need to be able to pick it up, decode it, digitise it and
write
it to the tape...

sounds like science fiction...

 

[Kevin Ettery]

"Rod Speed" <rod_speed@yahoo.com> wrote in message
news:boh8p9$1ds8hi$1@ID-69072.news.uni-berlin.de...

Allan <allanaws@hotmail.com> wrote in message
news:mKCqb.88$aT.57@news-server.bigpond.net.au...

And whats the betting the Tape did have colour bars already on it,

Sure, thats one obvious possibility.

The other is that the camera can generate those and the
substantial RF from the van managed to put it into that mode.

thus when the recording signal failed due to the high energy RF these
Guys where TXing, thus allowed the original recording to come through,

As most Broadcast VTRs and DV VTR's use a flying erase head.
There would be no apparent Signal interrupition when the interference
started ,in the playback of the tape.

Its more likely that the substantial RF just got
the camera to produce the color bars itself, just
like its capable of doing on user command.

The Third possibility is that the van had video gear on board and that a
piece of gear that should have been in standby (or switched off) was active.
This may have caused enough signal to overwhelm the camera - it may have
even been blasting out a colour bar itself. The techs in the van may not
even have been aware of it (the frequency would not interfere with normal
radio comms).

Ciao


Kevin

(BTW the van is probably there to let the prez contact other members of the
cabinet, etc., and vice-versa, in the event of an emergency - nuclear
attack/response being one such situation)

"Rod Speed" <rod_speed@yahoo.com> wrote in message
news:bo8vo5$1b1h1i$1@ID-69072.news.uni-berlin.de...

Pat Sproule <patsproule@ozemail.com.au> wrote in message
news:OZSpb.548$Ka1.11151@nnrp1.ozemail.com.au...

Well - I didn't suggest that it was broadcasting bars to the camera
- only that the camera was switching to it's bars generator. I am
just as sceptical as you - even a sceptical as 'Rod Speed' appears
to be and as such I remain unconvinced that jamming has happened.

Yeah, they wouldnt be that stupid. It would be so obvious what they
were doing if they were stupid enough to attempt deliberate jamming.

Its gotta be just some transmissions from the van, presumably
used to communicate back to whatever they use for comms,
getting into that particular camera and fucking it up unintentionally.

The van is obviously just there in case the prez gets shot etc.
And maybe its part of the system that allows the prez to nuke
the ruskys back to the stone age if they launch on the US etc.

However, having seen the tape and the break-up I know that
something other than a camera stop/start transition occurred
at either end of the bars on tape and that the switch to bars
occurred when the van came into close proximity in the shot
and switched back when it was some distance away (as
evidenced in the shot that came back).

Sure, easy to see how higher powered transmissions
from the van could do that. Thats not jamming tho.

The initial transition appears as a
DV head clog would, but only briefly.

Re the mobile phone Rod, This one is from
an electronics engineering magazine (printed).

Its bullshit. If it was that easy, they'd be using
then in changing rooms etc right from the start.

Perhaps not an infallible source but better than the net.

Depends on the rag. It may well have got it from the net.


"KoRRupT" <me@nowhere> wrote in message
news:3fa74568$1@duster.adelaide.on.net...

"Pat Sproule" <patsproule@ozemail.com.au> wrote in message
news:EzVob.993$xL4.24059@nnrp1.ozemail.com.au...
Perhaps some of you have a take on this one...

If the van did transmit some kind of 'coloured bar' jamming
signal,
the DV
camera would need to be able to pick it up, decode it, digitise it
and
write
it to the tape...

sounds like science fiction...

 

[Russ]

"Kevin Ettery" <kpettery@dcsi.net.au> wrote in message
news:3fac50da@news.leadingedgeinternet.net.au...

"Rod Speed" <rod_speed@yahoo.com> wrote in message
news:boh8p9$1ds8hi$1@ID-69072.news.uni-berlin.de...

Allan <allanaws@hotmail.com> wrote in message
news:mKCqb.88$aT.57@news-server.bigpond.net.au...

And whats the betting the Tape did have colour bars already on it,

Sure, thats one obvious possibility.

The other is that the camera can generate those and the
substantial RF from the van managed to put it into that mode.

thus when the recording signal failed due to the high energy RF these
Guys where TXing, thus allowed the original recording to come through,

As most Broadcast VTRs and DV VTR's use a flying erase head.
There would be no apparent Signal interrupition when the interference
started ,in the playback of the tape.

Its more likely that the substantial RF just got
the camera to produce the color bars itself, just
like its capable of doing on user command.

The Third possibility is that the van had video gear on board and that a
piece of gear that should have been in standby (or switched off) was
active.
This may have caused enough signal to overwhelm the camera - it may have
even been blasting out a colour bar itself. The techs in the van may not
even have been aware of it (the frequency would not interfere with normal
radio comms).

It's highly unlikely the van was broadcasting colour bars - if it was, it
would more likely be an NTSC signal, not PAL, and the bars would be SMPTE
bars as used in the US, not EBU bars as used in Australia - the original
poster said they were EBU bars.

There is the distinct possibility that the tape was pre-striped with
internal camera bars, which the operator has denied, but this seems to be
the most likely explanation, and some signal from the van caused the camera
to stop recording.

The last possibility is some inbuilt mechanism within the camera to switch
to the internal bar generator in response to a specific signal broadcast
from the camera - being a semi-pro camera the XL-1 does have an internal
bars generator. This last explanation is the most sinister, as it implies
some involvement by the manufacturer. However, as the other non-DV cameras
weren't affected - the SX cameras probably being of a similar age to the
XL-1S in question - it seems dubious that this "feature" would only be
enabled on this semi-pro camera, but not on other pro cameras.

Russ.