|
VE2HAR > MT63 14.03.05 00:04l 110 Lines 3241 Bytes #-7301 (0) @ WW
BID : 38698SENTTO
Read: GUEST
Subj: Re: [MT63] Re: Crest Factors
Path: DB0FHN<DB0MRW<DB0WUE<DK0WUE<7M3TJZ<ON0AR<VA2HAR<VE2HAR
Sent: 050313/2253z @:VE2HAR.#MTL.QC.CAN.NOAM Laval #:42253 $:38698sentto
.1268.7.camel@oh2bns.ampr.org> <6.2.0.14.2.20050313091616.05c3e490@mail.comcast.net> <6.2.0.14.2.20050313092956.05e7e9e8@mail.comcast.net> <1110733143.1270.35.camel@oh2bns.ampr.org> <423487EB.8010600@arrl.net> <1110746909.1260.59.camel@oh2bns.ampr.org
>
In-Reply-To: <1110746909.1260.59.camel@oh2bns.ampr.org>
X-Originating-IP: 216.148.227.85
X-eGroups-Msg-Info: 1:12:0
Sender: Steve Friis <wm5z@comcast.net>
From: Steve Friis <wm5z@comcast.net>
X-Yahoo-Profile: sfriis2002
MIME-Version: 1.0
Mailing-List: list MT63@yahoogroups.com; contact MT63-owner@yahoogroups.com
Delivered-To: mailing list MT63@yahoogroups.com
List-Id: <MT63.yahoogroups.com>
Precedence: bulk
List-Unsubscribe: <mailto:MT63-unsubscribe@yahoogroups.com>
Date: Sun, 13 Mar 2005 15:28:42 -0700
Subject: Re: [MT63] Re: Crest Factors
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
A spectrum analyzer would require that the duty cycle of the distortion
would be long enough to be captured in the bandpass of the sweep. 1%
would be -40dB in relation to the peak of the signal. A better choice
might be a selective level meter covering the band under test. Then the
known tones would have to measured first, then look for the anomalies.
Steve/WM5Z
Tomi Manninen wrote:
> Forgot one additional remark.
>
> On Sun, 2005-03-13 at 20:35, Paul L Schmidt wrote:
>
> > if these peaks occur
> > less than 1% of the time, for example, they'll probably get
> > lost when monitoring on a scope.
>
> Yes. What you need to be really sure is a spectrum analyzer...
>
> --
> Tomi Manninen / OH2BNS / KP20JF74
>
>
>
> << Try MT63 on 80m - great fun!>>
>
> - The MT63 Reflector -
> MT63@egroups.com
>
> (To unsubscribe. send email to
> MT63-unsubscribe@onelist.com)
>
>
>
> *Yahoo! Groups Sponsor*
> ADVERTISEMENT
> click here
> <http://us.ard.yahoo.com/SIG=129j972d6/M=298184.6018725.7038619.3001176/D=groups/S=1705034690:HM/EXP=1110833312/A=2593423/R=0/SIG=11el9gslf/*http://www.netflix.com/Default?mqso=60190075>
>
>
>
> ------------------------------------------------------------------------
> *Yahoo! Groups Links*
>
> * To visit your group on the web, go to:
> http://groups.yahoo.com/group/MT63/
>
> * To unsubscribe from this group, send an email to:
> MT63-unsubscribe@yahoogroups.com
> <mailto:MT63-unsubscribe@yahoogroups.com?subject=Unsubscribe>
>
> * Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> Service <http://docs.yahoo.com/info/terms/>.
>
>
------------------------ Yahoo! Groups Sponsor --------------------~-->
Over 1 billion served! The most music videos on the web.
Click to Watch now!
http://us.click.yahoo.com/xmKGzA/IARHAA/kkyPAA/CPMolB/TM
--------------------------------------------------------------------~->
<< Try MT63 on 80m - great fun!>>
- The MT63 Reflector -
MT63@egroups.com
(To unsubscribe. send email to
MT63-unsubscribe@onelist.com)
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/MT63/
<*> To unsubscribe from this group, send an email to:
MT63-unsubscribe@yahoogroups.com
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
Read previous mail | Read next mail
| |