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  #31   Report Post  
Old October 20th 03, 06:48 PM
AK
 
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"Airy R. Bean" wrote in message
...
What is the problem here? _REAL_ Radio Hams work with
signals that are deep in the noise all the time. There might be
a concern here by CBers who want S9 BBC quality, but
not for Radio Hams!


Is that why CBers use echo boxes so they can sound like SSB voices, without
the carrier insertion?

ak


  #32   Report Post  
Old October 20th 03, 06:54 PM
Thierry
 
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"RVMJ" wrote in message
...
Airy R. Bean wrote:


"Thierry" wrote:

...
Wide-spectrum recorders had captured the raw signals, and the
engineers are now using special decoders to find the data, which is 5
dB below the noise level. Obviously a bunch of Amateurs.....NOT.


Mmm?
There is a software accessible to amateurs that can detect signal 10 dB
below the noise : FFTDSP
See my commentaries on http://www.astrosurf.com/lombry/soft-calc.htm#FFTDSP
and a small review in French at the end of this page,
http://www.astrosurf.com/lombry/sate...tificiels5.htm
It is not much different from a SETI application.

Thierry
ON4SKY, LX3SKY


--
from
RVMJ
(at) Bigfoot (dot) com



  #33   Report Post  
Old October 20th 03, 06:54 PM
Thierry
 
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"RVMJ" wrote in message
...
Airy R. Bean wrote:


"Thierry" wrote:

...
Wide-spectrum recorders had captured the raw signals, and the
engineers are now using special decoders to find the data, which is 5
dB below the noise level. Obviously a bunch of Amateurs.....NOT.


Mmm?
There is a software accessible to amateurs that can detect signal 10 dB
below the noise : FFTDSP
See my commentaries on http://www.astrosurf.com/lombry/soft-calc.htm#FFTDSP
and a small review in French at the end of this page,
http://www.astrosurf.com/lombry/sate...tificiels5.htm
It is not much different from a SETI application.

Thierry
ON4SKY, LX3SKY


--
from
RVMJ
(at) Bigfoot (dot) com



  #34   Report Post  
Old October 20th 03, 09:11 PM
Brian Reay
 
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"Airy R. Bean" wrote in message
...
Taking the lead from the suppressors that were developed to
deal with the supposedly random Russian "Woodpecker"
is that necessarily the case?



The "Woodpecker" wasn't "supposedly" random, it was pseudo random - not the
same thing at all.

In fact, successive pulses even had 'glitches' in the same position - an
artefact of the way the short pulses were generated from a long (31 or 33-
it was along tome back) bit sequence.

As the whole idea was to give a predictable "compressed pulse" the thought
that is could be "supposedly" random is not creditable.

--
73
Brian
G8OSN
www.g8osn.org.uk
www.amateurradiotraining.org.uk for FREE training material for the UK
Foundation and Intermediate Licences
www.phoenixradioclub.org.uk - a RADIO club specifically for those wishing
to learn more about amateur radio


  #35   Report Post  
Old October 20th 03, 09:11 PM
Brian Reay
 
Posts: n/a
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"Airy R. Bean" wrote in message
...
Taking the lead from the suppressors that were developed to
deal with the supposedly random Russian "Woodpecker"
is that necessarily the case?



The "Woodpecker" wasn't "supposedly" random, it was pseudo random - not the
same thing at all.

In fact, successive pulses even had 'glitches' in the same position - an
artefact of the way the short pulses were generated from a long (31 or 33-
it was along tome back) bit sequence.

As the whole idea was to give a predictable "compressed pulse" the thought
that is could be "supposedly" random is not creditable.

--
73
Brian
G8OSN
www.g8osn.org.uk
www.amateurradiotraining.org.uk for FREE training material for the UK
Foundation and Intermediate Licences
www.phoenixradioclub.org.uk - a RADIO club specifically for those wishing
to learn more about amateur radio




  #36   Report Post  
Old October 21st 03, 12:27 AM
class_a_zpk_12wpm
 
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On Mon, 20 Oct 2003 21:11:45 +0100, "Brian Reay"
wrote:

www.phoenixradioclub.org.uk - a RADIO club specifically for those wishing
to learn more about amateur radio




still waiting for the name of someone in the phoenix radio club that i
can contact to learn more about morse code.


  #37   Report Post  
Old October 21st 03, 12:27 AM
class_a_zpk_12wpm
 
Posts: n/a
Default

On Mon, 20 Oct 2003 21:11:45 +0100, "Brian Reay"
wrote:

www.phoenixradioclub.org.uk - a RADIO club specifically for those wishing
to learn more about amateur radio




still waiting for the name of someone in the phoenix radio club that i
can contact to learn more about morse code.


  #38   Report Post  
Old October 21st 03, 01:53 AM
Steve Terry
 
Posts: n/a
Default


"Zoran Brlecic" wrote in message
...
snip
[Gasp!]... but that could mean one thing only: president Wolf... I mean
president G.W.Bush and his cronies lied to the American people!!!

Hmm, politicians lying to their constituents to the point of having
hundreds of lost lives in order to satisfy the lobby of a foreign
country, while filling their pockets in the process? No ****ing way!
There's gotta be a more rational explanation. This must be a vast

liberal-anti-Christian-communist-leftist-atheist-terrorist-Clinton-UN-Franco-Ger
man
conspiracy. Yeah, that's what it is. Whew! Life makes sense again.

73 ... WA7AA

You're an American aren't you ??

Steve Terry


  #39   Report Post  
Old October 21st 03, 01:53 AM
Steve Terry
 
Posts: n/a
Default


"Zoran Brlecic" wrote in message
...
snip
[Gasp!]... but that could mean one thing only: president Wolf... I mean
president G.W.Bush and his cronies lied to the American people!!!

Hmm, politicians lying to their constituents to the point of having
hundreds of lost lives in order to satisfy the lobby of a foreign
country, while filling their pockets in the process? No ****ing way!
There's gotta be a more rational explanation. This must be a vast

liberal-anti-Christian-communist-leftist-atheist-terrorist-Clinton-UN-Franco-Ger
man
conspiracy. Yeah, that's what it is. Whew! Life makes sense again.

73 ... WA7AA

You're an American aren't you ??

Steve Terry


  #40   Report Post  
Old October 21st 03, 03:42 AM
Dee D. Flint
 
Posts: n/a
Default


"class_a_zpk_12wpm"
.uk.net wrote in message
...
On Mon, 20 Oct 2003 21:11:45 +0100, "Brian Reay"
wrote:

www.phoenixradioclub.org.uk - a RADIO club specifically for those

wishing
to learn more about amateur radio




still waiting for the name of someone in the phoenix radio club that i
can contact to learn more about morse code.



The web site should have the name of a contact person.


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