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Re: DSP noise reduction--now I'm confused



The ClearSpeech definitely does interfere with the MB telemetry.  With the
unit off and decoding the telemetry with 98%-plus good CRCs, if I turn on
the ClearSpeech, it will drop down to the low 50% range of good CRCs; on the
other hand, the TimeWave DSP 599xz actually improves my successful decode
rate during higher squint/noise conditions.

73 de Rick, KG6IAL

----- Original Message -----
From: "Jon Ogden" <na9d-2@speakeasy.net>
To: "Robert McGwier" <rwmcgwier@comcast.net>; "Amsat Bulletin Board"
<amsat-bb@AMSAT.Org>
Sent: Friday, February 21, 2003 9:16 AM
Subject: Re: [amsat-bb] DSP noise reduction--now I'm confused


> on 2/21/03 7:28 AM, Robert McGwier at rwmcgwier@comcast.net wrote:
>
> > Before I believed this actually helped
> > with (say) the AO-40 beacon, I would like to see some tests
> > run.  While you are making files, can you make beacon with and
> > without the filtering?
>
> I believe the ClearSpeech does distort the beacon.  I don't think it's
> really designed for a data signal.  I'll see what it does.
>
> The bottom line is that it is a tool that is appropriate to some tasks and
> not appropriate to others.  I love my Sawzall, but I am not going to try
to
> do precise trim work or mitering with it.  I'll use my bandsaw or my chop
> saw for the mitering.
>
> 73,
> Jon
> NA9D
>
> -------------------------------------
> Jon Ogden
> NA9D (ex: KE9NA)
>
> Citizen of the People's Democratic Republik of Illinois
>
> Life Member: ARRL, NRA
> Member:  AMSAT, DXCC
>
> http://www.qsl.net/na9d   <- Updated on 1/22/03!!!
>
> "A life lived in fear is a life half lived."
>
>
> ----
> Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
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>

----
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