"K1TTT" wrote
...
On Dec 25, 2:57 pm, joe wrote:
K1TTT wrote:

distance itself does not affect sidebands.

frequency dependent dispersion in the ionosphere can affect sidebands
and the mark/space tones of rtty differently over short periods
causing differential fading and distortion.

One could also consider selective fading.

that's just another name for it... i threw in the big words because
i'm sure that mr.b will look them up out of context and find all sorts
of hilarious ways to recombine them.

http://dj4br.home.t-link.de/ssb3e.htm
I am sure that the all my questions will be explained with the ionosphere.
The first my question was on the frequency doubling.
But yours selective fading means for me "distance itself does affect
sidebands". So you are very helpfull.

For me all names are clear.
Ampere discovered the electrons and give them name "current elements".
Maxwell used "electric particless". But you all admire Heaviside's fluid
(massles and incompressible). Do you see the difference?
S*

Szczepan Bialek wrote:

"K1TTT" wrote
...
On Dec 25, 2:57 pm, joe wrote:
K1TTT wrote:

distance itself does not affect sidebands.

frequency dependent dispersion in the ionosphere can affect sidebands
and the mark/space tones of rtty differently over short periods
causing differential fading and distortion.

One could also consider selective fading.

that's just another name for it... i threw in the big words because
i'm sure that mr.b will look them up out of context and find all sorts
of hilarious ways to recombine them.

http://dj4br.home.t-link.de/ssb3e.htm
I am sure that the all my questions will be explained with the ionosphere.

Hardly.

At some frequencies the ionosphere is transparent, at some it is reflective,
at some it is absorptive.

And the iononsphere has little to nothing to do with ground wave propagation,
which predominates at AM broadcast frequencies.

But you haven't a clue what any of that means, do you?

The first my question was on the frequency doubling.
But yours selective fading means for me "distance itself does affect
sidebands". So you are very helpfull.

Correct conclusion but for totally wrong reasons, much like noticing ice
cream is cold therefor the sky is blue.

For me all names are clear.

Babble.

Ampere discovered the electrons and give them name "current elements".

You are wrong as usual.

Richard Laming came up with the concept, the name was by George Johnstone
Stoney, the particle itself was identified by Sir John Joseph Thomson.

Maxwell used "electric particless". But you all admire Heaviside's fluid
(massles and incompressible). Do you see the difference?
S*

More mindless, word salad babble.


--
Jim Pennino

Remove .spam.sux to reply.

Szczepan Bialek wrote:

"K1TTT" wrote
...
On Dec 25, 2:57 pm, joe wrote:
K1TTT wrote:

distance itself does not affect sidebands.

frequency dependent dispersion in the ionosphere can affect sidebands
and the mark/space tones of rtty differently over short periods
causing differential fading and distortion.

One could also consider selective fading.

that's just another name for it... i threw in the big words because
i'm sure that mr.b will look them up out of context and find all sorts
of hilarious ways to recombine them.

http://dj4br.home.t-link.de/ssb3e.htm
I am sure that the all my questions will be explained with the
ionosphere. The first my question was on the frequency doubling.
But yours selective fading means for me "distance itself does affect
sidebands". So you are very helpfull.


But you fail to recognize that distance ALONE does NOT affect sidebands
differently. It requires something else to be present.



For me all names are clear.
Ampere discovered the electrons and give them name "current elements".
Maxwell used "electric particless". But you all admire Heaviside's fluid
(massles and incompressible). Do you see the difference?
S*

Jim Higgins wrote:
On Fri, 24 Dec 2010 21:21:08 -0000, wrote:

Jim Higgins wrote:
On Thu, 23 Dec 2010 17:12:38 -0000, wrote:

Szczepan Bialek wrote:

If in 1915 were no broadcast stations to speak tell us what was with the
first station to speak and when it start transmitting.
S*

There were no broadcasting stations of any kind in 1915.

The first station that could even remotely be called a broadcasting station
was in 1916 and it broadcasted weather reports in morse code.

The first experimental AM broadcast stations started in 1919 and regular AM
broadcasting started in 1920 when all the spark gap morse transmitters
were shut down.


Make that 1906 for the first experimental AM broadcast.
http://en.wikipedia.org/wiki/Reginald_Fessenden

The operative words are "scheduled" and "public" in this context.

There were lots of one off things done before 1919.

Yes, but the first one off thing of a kind is still the FIRST one off
thing of that kind. So make that 1906 for the "first experimental AM
broadcast station," not 1919.

From http://en.wikipedia.org/wiki/History_of_radio

begin quotes
The question of the 'first' publicly-targeted licensed radio station in the
U.S. has more than one answer and depends on semantics. Settlement of this
'first' question may hang largely upon what constitutes 'regular' programming.

It is commonly attributed to KDKA in Pittsburgh, Pennsylvania, which in
October 1920 received its license and went on the air as the first US
licensed commercial broadcasting station. (Their engineer Frank Conrad had
been broadcasting from his own station since 1916.) Technically, KDKA was
the first of several already-extant stations to receive a 'limited commercial'
license.

On February 17, 1919, station 9XM at the University of Wisconsin in Madison
broadcast human speech to the public at large. 9XM was first experimentally
licensed in 1914, began regular Morse code transmissions in 1916, and its
first music broadcast in 1917. Regularly scheduled broadcasts of voice and
music began in January 1921. That station is still on the air today as WHA.

On August 20, 1920, at least two months before KDKA, E.W. Scripps's WBL
(now WWJ) in Detroit started broadcasting.

There is the history noted above of Charles David Herrold's radio services
(eventually KCBS) going back to 1909.
end quotes

So first define "broadcasting".

Mine is a station with a license with a target of the general public and
a regular schedule.



--
Jim Pennino

Remove .spam.sux to reply.

Uzytkownik "joe" napisal w wiadomosci
...
Szczepan Bialek wrote:

"K1TTT" wrote
...
On Dec 25, 2:57 pm, joe wrote:
K1TTT wrote:

distance itself does not affect sidebands.

frequency dependent dispersion in the ionosphere can affect sidebands
and the mark/space tones of rtty differently over short periods
causing differential fading and distortion.

One could also consider selective fading.

that's just another name for it... i threw in the big words because
i'm sure that mr.b will look them up out of context and find all sorts
of hilarious ways to recombine them.

http://dj4br.home.t-link.de/ssb3e.htm
I am sure that the all my questions will be explained with the
ionosphere. The first my question was on the frequency doubling.
But yours selective fading means for me "distance itself does affect
sidebands". So you are very helpfull.


But you fail to recognize that distance ALONE does NOT affect sidebands
differently. It requires something else to be present.

Jim wrote: "At some frequencies the ionosphere is transparent, at some it is
reflective,
at some it is absorptive."

Some of you play with the Moon. Are the sidebands the distance dependent?
The distance is huge and the ionosphere is transparent.
S*

For me all names are clear.
Ampere discovered the electrons and give them name "current elements".
Maxwell used "electric particless". But you all admire Heaviside's fluid
(massles and incompressible). Do you see the difference?
S*

On 25/12/2010 23:24, wrote:
Jim wrote:
On Fri, 24 Dec 2010 21:21:08 -0000, wrote:

Jim wrote:
On Thu, 23 Dec 2010 17:12:38 -0000, wrote:

Szczepan wrote:

If in 1915 were no broadcast stations to speak tell us what was with the
first station to speak and when it start transmitting.
S*

There were no broadcasting stations of any kind in 1915.

The first station that could even remotely be called a broadcasting station
was in 1916 and it broadcasted weather reports in morse code.

The first experimental AM broadcast stations started in 1919 and regular AM
broadcasting started in 1920 when all the spark gap morse transmitters
were shut down.


Make that 1906 for the first experimental AM broadcast.
http://en.wikipedia.org/wiki/Reginald_Fessenden

The operative words are "scheduled" and "public" in this context.

There were lots of one off things done before 1919.

Yes, but the first one off thing of a kind is still the FIRST one off
thing of that kind. So make that 1906 for the "first experimental AM
broadcast station," not 1919.

From http://en.wikipedia.org/wiki/History_of_radio

begin quotes
The question of the 'first' publicly-targeted licensed radio station in the
U.S. has more than one answer and depends on semantics. Settlement of this
'first' question may hang largely upon what constitutes 'regular' programming.

It is commonly attributed to KDKA in Pittsburgh, Pennsylvania, which in
October 1920 received its license and went on the air as the first US
licensed commercial broadcasting station. (Their engineer Frank Conrad had
been broadcasting from his own station since 1916.) Technically, KDKA was
the first of several already-extant stations to receive a 'limited commercial'
license.

On February 17, 1919, station 9XM at the University of Wisconsin in Madison
broadcast human speech to the public at large. 9XM was first experimentally
licensed in 1914, began regular Morse code transmissions in 1916, and its
first music broadcast in 1917. Regularly scheduled broadcasts of voice and
music began in January 1921. That station is still on the air today as WHA.

On August 20, 1920, at least two months before KDKA, E.W. Scripps's WBL
(now WWJ) in Detroit started broadcasting.

There is the history noted above of Charles David Herrold's radio services
(eventually KCBS) going back to 1909.
end quotes

So first define "broadcasting".

Mine is a station with a license with a target of the general public and
a regular schedule.

But note the start of the quote "begin quotes
The question of the 'first' publicly-targeted licensed radio station in
the **U.S.**"

The Dutch beat the US to it!! with regular scheluled programmes from
PCGG starting in November 1919 a year KDKA.

Jeff

On 26/12/2010 09:55, Szczepan Bialek wrote:

Uzytkownik "joe" napisal w wiadomosci
...
Szczepan Bialek wrote:

"K1TTT" wrote
...
On Dec 25, 2:57 pm, joe wrote:
K1TTT wrote:

distance itself does not affect sidebands.

frequency dependent dispersion in the ionosphere can affect
sidebands
and the mark/space tones of rtty differently over short periods
causing differential fading and distortion.

One could also consider selective fading.

that's just another name for it... i threw in the big words because
i'm sure that mr.b will look them up out of context and find all sorts
of hilarious ways to recombine them.

http://dj4br.home.t-link.de/ssb3e.htm
I am sure that the all my questions will be explained with the
ionosphere. The first my question was on the frequency doubling.
But yours selective fading means for me "distance itself does affect
sidebands". So you are very helpfull.


But you fail to recognize that distance ALONE does NOT affect
sidebands differently. It requires something else to be present.


Whilst distance does not affect sidebands per se, it can affect which
sidebands are received, and hence the envelope of a recovered signal.

Consider a pulse train with a spectrum that extends to infinity; the
higher order sidebands when received by a distant station will be below
the noise floor and will not play a part in the recovered pulse train,
so in a way distance has modified the spectrum of the received signal!!

Jeff

On Dec 26, 9:55*am, "Szczepan Bialek" wrote:
Uzytkownik "joe" napisal w ...



Szczepan Bialek wrote:

"K1TTT" wrote
....
On Dec 25, 2:57 pm, joe wrote:
K1TTT wrote:

distance itself does not affect sidebands.

frequency dependent dispersion in the ionosphere can affect sidebands
and the mark/space tones of rtty differently over short periods
causing differential fading and distortion.

One could also consider selective fading.

that's just another name for it... i threw in the big words because
i'm sure that mr.b will look them up out of context and find all sorts
of hilarious ways to recombine them.

http://dj4br.home.t-link.de/ssb3e.htm
I am sure that the all my questions will be explained with the
ionosphere. The first my question was on the frequency doubling.
But yours selective fading means for me "distance itself does *affect
sidebands". So you are very helpfull.

But you fail to recognize that distance ALONE does NOT affect sidebands
differently. It requires something else to be present.
Jim wrote: "At some frequencies the ionosphere is transparent, at some it is

reflective,
at some it is absorptive."

Some of you play with the Moon. Are the sidebands the distance dependent?
The distance is huge and the ionosphere is transparent.
S*

no, the sidebands are NOT distance dependent.

and no, the distance is not huge and the ionosphere is not
transparent.

Szczepan Bialek wrote:

Jim wrote: "At some frequencies the ionosphere is transparent, at some it is
reflective,
at some it is absorptive."

Some of you play with the Moon. Are the sidebands the distance dependent?
The distance is huge and the ionosphere is transparent.
S*

How many times are you going to repeat this nonsense?

Sidebands and distance are not related.

You are a babbling idiot.


--
Jim Pennino

Remove .spam.sux to reply.

Jeff wrote:
On 25/12/2010 23:24, wrote:
Jim wrote:
On Fri, 24 Dec 2010 21:21:08 -0000, wrote:

Jim wrote:
On Thu, 23 Dec 2010 17:12:38 -0000, wrote:

Szczepan wrote:

If in 1915 were no broadcast stations to speak tell us what was with the
first station to speak and when it start transmitting.
S*

There were no broadcasting stations of any kind in 1915.

The first station that could even remotely be called a broadcasting station
was in 1916 and it broadcasted weather reports in morse code.

The first experimental AM broadcast stations started in 1919 and regular AM
broadcasting started in 1920 when all the spark gap morse transmitters
were shut down.


Make that 1906 for the first experimental AM broadcast.
http://en.wikipedia.org/wiki/Reginald_Fessenden

The operative words are "scheduled" and "public" in this context.

There were lots of one off things done before 1919.

Yes, but the first one off thing of a kind is still the FIRST one off
thing of that kind. So make that 1906 for the "first experimental AM
broadcast station," not 1919.

From http://en.wikipedia.org/wiki/History_of_radio

begin quotes
The question of the 'first' publicly-targeted licensed radio station in the
U.S. has more than one answer and depends on semantics. Settlement of this
'first' question may hang largely upon what constitutes 'regular' programming.

It is commonly attributed to KDKA in Pittsburgh, Pennsylvania, which in
October 1920 received its license and went on the air as the first US
licensed commercial broadcasting station. (Their engineer Frank Conrad had
been broadcasting from his own station since 1916.) Technically, KDKA was
the first of several already-extant stations to receive a 'limited commercial'
license.

On February 17, 1919, station 9XM at the University of Wisconsin in Madison
broadcast human speech to the public at large. 9XM was first experimentally
licensed in 1914, began regular Morse code transmissions in 1916, and its
first music broadcast in 1917. Regularly scheduled broadcasts of voice and
music began in January 1921. That station is still on the air today as WHA.

On August 20, 1920, at least two months before KDKA, E.W. Scripps's WBL
(now WWJ) in Detroit started broadcasting.

There is the history noted above of Charles David Herrold's radio services
(eventually KCBS) going back to 1909.
end quotes

So first define "broadcasting".

Mine is a station with a license with a target of the general public and
a regular schedule.

But note the start of the quote "begin quotes
The question of the 'first' publicly-targeted licensed radio station in
the **U.S.**"

The Dutch beat the US to it!! with regular scheluled programmes from
PCGG starting in November 1919 a year KDKA.

Jeff

Which still makes the year 1919.


--
Jim Pennino

Remove .spam.sux to reply.