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#31
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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
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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
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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
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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
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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
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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
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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. |
#38
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"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
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"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
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"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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