DTV antennas?

[Jan Panteltje]

Plus you'll meet with $600 monster cables, PMPO, gold-plated electron
transfers and such ;-)

Yes, never did it for me, started audio building an amp for the school band...
We had very little, if any, budget,

Hey, I made a nice 'studio' screenshot this afternoon from ZDF widescreen,
if you like food (I went to the kitchen after watching part of that program):
ftp://panteltje.com/pub/snapshots/zdf_widescreen.png

 

[Joerg]

Yes, never did it for me, started audio building an amp for the school band...
We had very little, if any, budget,

Hey, I made a nice 'studio' screenshot this afternoon from ZDF widescreen,
if you like food (I went to the kitchen after watching part of that program):
ftp://panteltje.com/pub/snapshots/zdf_widescreen.png

Too many vegetables. I am into the good stuff. Bacon, steaks, pot roast
....

 

[krw]

Like I said... it varies with the individual. I'm one of those
"hands-on" types that can't understand anything unless I have seen it
in person. Books and publications are a different headache. One has
only to teach a technical subject, and grade a few papers, to realize
that there are a huge number of ways to describe fundamental concepts.
Dive into abstract concepts, and the analogies can be almost
unlimited. Books tend to follow the same pattern. The orientation of
the author totally determines the style and approach. Some will bury
the reading in formulas and equations. Others will use various
modeling concepts and software. Still others will supply a sample
design, and deconstruct the design decisions.

Others (many) have no meaningful information to impart. ;-)

In a classroom, there is considerable leeway in describing circuit
designs (time permitting). If the instructor finds that one approach
isn't getting through, he can easily switch to another. Some classes
respond well to theory and abstractions. Others do better with
oscilloscope displays and measurements. I suspect the reason you are
more comfortable with a classroom environment is because this leeway
coincidentally hits your favorite method of understanding and
learning. If you simply pick a random book off the shelf, chances are
small that it will use your preferred method.

I suspect that's a large part of it. When I taught CS courses at a
local college I found myself backtracking and changing "courses"
often to get a point across. In classes I've taken, I've found I
can often help the instructor get past such roadblocks in others,
buy slightly changing the question to get a different response or
just providing additional views of the problem.

I think interaction/involvement is another reason traditional
classroom settings work better for me. I still believe the major
reason is that I get a sense of the "why", I don't get from reading
a dry book (they almost all are).

Suggestion: First read the release notes, bug lists, and
documentation corrections and addendums. That's where the screwups
are buried. You're almost certain to blunder into some problem that
was already found. For web sites, I like to look at the most
frequently requested docs in the knowledgebase. That usually
indicates where others are having problems, and where I can expect to
also blunder.

Not there. The ModelSim support guy was quite good at tracking down
the problem but still hasn't figured out why we have it. From what
I can understand, I'm using ModelSimPE and somehow optimization
flags that aren't supposed to be set in PE (used in SE) are being
set. The GUI switches in PE are grayed out because they aren't
supposed to be used in PE (didn't pay for them).

Far too much time. That was the problem. If you asked him a
question, he would retreat to his office, consider the problem, and
reply with a memo. He didn't believe in snap decisions. As I vaguely
recall, he was quite good at making decisions and keeping the project
going in the right direction. He just couldn't do it in person or in
real time. As long as he wasn't asked to give a presentation, or
verbally defend his decisions, he was just fine.

Sounds like the brain panicking when challenged. Given time to
collect the story, everything functions properly. IOW< he wasn't a
bullshitter. ;-)

There are various forms of stuttering. Only some are treatable.
There's no learning impairment involved.
<http://www.nidcd.nih.gov/health/voice/stutter.asp>
The tech writer was highly intelligent, but had difficulties
expressing himself. Communications is a bi-directional process. I
learned that the hard way when my father had a stroke. He couldn't
speak or even gesture effectively, but apparently understood
everything that was happening. One direction of the processor had
failed, but the other was still functional. It's like that with
speech impairments. The output channel is having a problem, but the
input channel is unaffected.

Other than stroke (physical damage) I always considered such things
under the "learning impairment" category.

 

[JosephKK]

Jan Panteltje wrote:
On a sunny day (Fri, 18 Jul 2008 11:16:26 -0700) it happened Joerg
<[email protected]>:
[...]

Actually the bit rates is ok. I have watched ballroom dancing on it and
during dances with rapid movements such as the tango I'd have seen any
shortfalls there. Then there was a parachuting documentary in full HD.
Oh man, like heaven.

Give numbers, what bitrate, what resultion is transmitted, what
resolution does your TV have,interlaced / progressive, fps,
encoding (h264 or mpeg2) etc.
Without all of that this discussion will quickly become so subjective
that it makes little sense,

1080*1920, 30fps, so far only interlaced xmit. The TV screen is 1366*768
yet you see a noticeable difference when the station switches from 720
to 1080. AFAIK the channel BW is just under 20Mbps and it's MPEG2.

Well, interesting numbers, but channel bandwidth is not the same as transmitted
bps.

Sure, but channel BW allows bit streams up to there and when there is a
big show or something they keep the aux channels off the air so the BW
remains available when a certain scene needs it.

The 'subjective' or psychological part is, that perhaps when ball room dancing
was displayed you were interested so much that you actually looked at the content
as opposed to looking for artefacts during the other transmissions

Not really. During tango dances I watched technical effects of the
image. That's because I am more of a western/country/quickstep dancer
and never really mastered the tango. Probably never will.

This is not a joke, I have experienced this myself.
Things get very subjective, and people fool themselves.
I remember listening to a mp3 of an old analog recording, and thinking:
'Hey analog was better!' ...

It probably was better

... Then I realized the fact that I was listening via digital.
Beware, human perception is not constant, the rose smells more or less
not only because it may be different, but also less if you have a cold for example.
So, indeed the world is an illusion (it really is not, but the picture of it
we build in our minds is a variable- neural net - weights change-).

An interesting subject, away from electronics and the scope of this newsgroup
perhaps.
However if you are into audio you will immediately meet with psycho-acoustical
models if you want to write code for say a mp2 or mp3 codec.

Plus you'll meet with $600 monster cables, PMPO, gold-plated electron
transfers and such ;-)

Dawgs, i met PMPO over 40 over ago and saw through its bullshit. I
could not have been over 14.

 

[Jan Panteltje]

Dawgs, i met PMPO over 40 over ago and saw through its bullshit. I
could not have been over 14.

All that audio bullshit passed me by, until I went looking for some extention
cable for my headpohones, and saw one of about 100$ in the shop window.
LOL
Now there is a good business.
I know about tube amps, I build them, was so happy when I did my first all transistor
SEPP, smaller, cheaper, better, sold it within a week or so.
Those tube transformers were big, heavy, and not that good.

 

[Jan Panteltje]

There is also the DVB-H standard (for broadcasting to Hand-held devices)
that has found some favour in trials in the UK.

[/QUOTE]

Yes, DVB-H is recommended by the European Union,
however with free DVB-T and things like football available on
DVB-T, DVB-H may well die because of lack of investor interest.
(DVB-H would be a pay service).

And this has now happened, Mobile3.0 DVB-H stops (in German):
http://www.heise.de/newsticker/Beri...ile-3-0-gibt-auf--/meldung/113573/from/atom10

 

[Joerg]

And this has now happened, Mobile3.0 DVB-H stops (in German):
http://www.heise.de/newsticker/Beri...ile-3-0-gibt-auf--/meldung/113573/from/atom10

That was quite predictable. Didn't the Vodafone boss tell them in no
uncertain terms that this is not going to fly? It amazes me that they
ignored such important voices and just pressed on with it. Oh well, I
won't shed a tear.

Whoever is crazy enough to watch TV on a postage stamp sized screen I
think mobile TV will be delivered via the mobile data paths that already
carry Internet. Eventually home TV may become web-delivered as well
which could put a serious ding in the value of all the recent
investments in DTV. Even more so in the US where some folks in heavy
multipath areas like where we are might just hang up on it and move on
to live streaming sources.