Quoting Ted [EMAIL PROTECTED], on Sat 22 Dec 2007 07:23:58 PM PST:
I always thought that the ability of GPS receivers to detect signals
that ride at or deep inside the noise levels was a direct
descendant of the concepts of CCW.
Not exactly. GPS relies on spreading the signal, and
From: Jim Lux
[EMAIL PROTECTED]
To: Ted [EMAIL PROTECTED]
Cc: flexradio@flex-radio.biz
Sent: Sunday, December 23, 2007 10:24:24 AM
Subject: Re: [Flexradio] CCW
Quoting Ted [EMAIL PROTECTED], on Sat 22 Dec 2007 07:23:58 PM PST:
I always thought that the ability of GPS receivers to detect
Ted @ [EMAIL PROTECTED] wrote:
I always thought that the ability of GPS receivers to detect signals that ride
at or deep inside the noise levels was a direct descendant of the concepts of
CCW. The math experts on this list know more about this topic than I do. But
CCW was a pretty exciting
Bill Tynan wrote:
It sounds like CCW would be the nuts for EME if it's capable of digging
signals out of noise. But, I'm afraid I'm in the dark as to what CCW is.
Someone, please enlighten me.
CCW attracted quite a bit of interest back in the late 70s and early
80s, but I have heard
Quoting Bill Tynan [EMAIL PROTECTED], on Sun 23 Dec 2007 01:12:57 PM PST:
Ted @ [EMAIL PROTECTED] wrote:
It sounds like CCW would be the nuts for EME if it's capable of
digging signals out of noise. But, I'm afraid I'm in the dark as to
what CCW is.
Someone, please enlighten me.
Quoting Ted [EMAIL PROTECTED], on Sun 23 Dec 2007 12:27:02 PM PST:
Ok, I see why I connected the two technologies. Does the 'exact'
timing needed for CCW help with the 'very narrow bandwidth detector'
methodology?
Is the CCW detector only allowing or gating for the signal at an
Hi Bill,
CCW stands for Coherent CW Google has about 2500 references to it.
73, Brian, ZL1IE
Bill Tynan wrote:
Ted @ [EMAIL PROTECTED] wrote:
I always thought that the ability of GPS receivers to detect signals that ride
at or deep inside the noise levels was a direct descendant of the
I saw Ray Petit demonstrate CCW at one of the Washington State Hamfests
about 1971. Was on the mailing list and built one of the keyers, but due
to startup medical practice demands, never got on the air before interest
went away. Ray is gone now, but I discussed with him at Dayton one year
of
@flex-radio.biz
Sent: Saturday, December 22, 2007 1:32:26 PM
Subject: Re: [Flexradio] CCW
I saw Ray Petit demonstrate CCW at one of the Washington State Hamfests
about 1971. Was on the mailing list and built one of the keyers, but
due
to startup medical practice demands, never got on the air
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