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Subject: HamDigitalDigest 2000/80A
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Ham-Digital Digest Mon, 20 Mar 2000 Volume 2000 : Issue 80
Today's Topics:
fs:packet modem
May QEX digital voice article (5 msgs)
Open bands last night.
Request help to finding NJ 88C40 DIP
rfi hash
tnc software (2 msgs)
WinCE APRS Beta is here.
Send Replies or notes for publication to: <Ham-Digital@UCSD.Edu>
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Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Ham-Digital Digest are available
(by FTP only) from ftp.UCSD.Edu in directory "mailarchives/ham-digital".
We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party. Your mileage may vary. So there.
Loop-Detect: Ham-Digital:2000/80
----------------------------------------------------------------------
Date: Sun, 19 Mar 2000 12:57:00 -0800
From: "art" <artak@jps.net>
Subject: fs:packet modem
i put together couple of modems based on baycom 1200bps fsk
with tmc3105 chips. Willing to sell this, but i dont know if they're still
in use and how much they go for.
>.
------------------------------
Date: Fri, 17 Mar 2000 10:37:59 +0200
From: Paul Keinanen <keinanen@sci.fi>
Subject: May QEX digital voice article
On 17 Mar 2000 02:05:23 GMT, jeffreyh@Hawaii.Edu (Jeffrey Herman)
wrote:
>As communicators first and foremost, do you believe it's a sound idea
>to have all the world's HF-amateurs proficient in a common mode?
What exactly would the purpose of such a common mode be ?
There is already a common mode known as Carrier Detect Multiple Access
(i.e. listen before transmit) to coordinate the use of the shared
frequency resources :-).
How do you expect anything more subtle than this frequency access
protocol to be enforceable, when some rude operators ignore even this
simple principle (usually with big linear amplifiers) ?
Paul OH3LWR
>.
------------------------------
Date: 19 Mar 2000 22:15:47 GMT
From: jeffreyh@Hawaii.Edu (Jeffrey Herman)
Subject: May QEX digital voice article
W6RCecilA <Cecil.A.Moore@IEEE.org> wrote:
>Mark Morgan wrote:
>> In greater detail yes if that in fact was really the case, but that
>> would require either the World to learen English, as used by the US or
>> to require US to learn at least one foreign lang
>That wouldn't do it either, Mark. As long as there exist different
>languages, there will be no common mode.
>The fact is that two people who speak completely
>different languages just cannot communicate to a reasonable degree.
Nonsense, Cecil. For 90+ years, CW served the *international* maritime
community. It still does in many areas of the world today.
73, Jeff KH6O
>.
------------------------------
Date: Mon, 20 Mar 2000 00:12:17 -0600
From: W6RCecilA <Cecil.A.Moore@IEEE.org>
Subject: May QEX digital voice article
Jeffrey Herman wrote:
> You've gotta get a better antenna, Brian; then you'll be able to determine
> for yourself that there are about the same number of CW QSOs on the HF
> bands as SSB QSOs.
Jeff, you seem capable of ignoring the reality that you can hear a larger
percentage of CW signals than SSB signals. That doesn't mean that the SSB
signals are not there. It just means that you can't hear them. Out of
sight, out of mind?
You freely admit that CW gets through when you can't even hear the SSB
signal at the same power level, yet you insist on counting all the CW
signals that you can hear and ignoring the SSB signals that you can't
hear. You just cannot have it both ways. To normalize the count you
must not count any CW signal below S3. Your count is probably off by
at least a factor of two.
--
73, Cecil, W6RCA http://www.mindspring.com/~w6rca
>.
------------------------------
Date: 20 Mar 2000 05:55:57 GMT
From: jeffreyh@Hawaii.Edu (Jeffrey Herman)
Subject: May QEX digital voice article
James Rosenthal <z005381b@bc.seflin.org> wrote:
>:Steve Sampson <ssampson@usa-site.net> wrote in message
>:> "Jeffrey Herman" wrote
>:>> "Seething"? Honestly, it won't affect me in the slightest, for I'll
>:>> continue to answer any CW station's CQ, regardless of license class.
>:>> *Any* ham who uses CW immediately gets my sincere respect and
>:>> admiration. I mean that.
>:>Why is it, that every CW fanatic descends on this group whenever a
>:>modern form of communication is experimented with?
>Because they are afraid that it will take up some of the spectrum that
>they now (sort of) use.
Nonsense. CW is the only mode privileged to operate on any frequency
in any band.
73, Jeff KH6O
>.
------------------------------
Date: Mon, 20 Mar 2000 05:12:14 -0600
From: Brian <burke1@icss.net>
Subject: May QEX digital voice article
Jeffrey Herman wrote:
> Brian <burke1@icss.net> wrote:
> >Hey Dick, "I'm the NRA."
>
> How's life in the militia, Brian? Keep an eye on that upper age limit,
> though. =:o
>
> Jeff
Yeh, but I'm not the average Ham's age, so I've got many years left in me.
Besides, why is it that "The People" in all the other Bill of Rights is
interpreted and Any American Citizen, yet it means something else when it
comes to the 2nd?
>.
------------------------------
Date: Sun, 19 Mar 2000 22:35:11 +0100
From: "A&B" <ah@plis.inka.de>
Subject: Open bands last night.
Yeah - bands were quite wide open -
worked Ecuador and Uruguay on 10 in Psk31
73 de Alex DH2ID
>.
------------------------------
Date: Fri, 17 Mar 2000 11:53:18 +0100
From: Sergiy Garbuza <garbuza@fh-heilbronn.de>
Subject: Request help to finding NJ 88C40 DIP
Hello all,
We are looking for old electronik components :
PLL Synthesitor
Fa.Plessey (GEC)
{bought by Mitel}
NJ 88C40 DIP
If you have this component we can buy it or if you find it in another
place, please send us a information conserning this detail.
Thanks beforehand.
regards,
Sergiy Garbuza
Savenko Elena lena@fh-heilbronn.de
>.
------------------------------
Date: Mon, 20 Mar 2000 04:08:44 GMT
From: jclind@sentex.net
Subject: rfi hash
Hopefully someone can help rectify the following situation.
I moved 2 pc's from my desk to the far side of an 'L' shaped desk (ie
the outside of the extension). I then needed extension cables for my
CRTs, keyboards and serial cables for my TNCs. I also installed a
1200W UPS which has both PCs, my printer and a scanner plugged into
it.
As soon as I powered up my WIn98 machine, I got a tremendous amount of
RFI which seems to start at about 10MHZ and gets progressivly worse
(louder) up to 30MHZ.
I have winpsk running and I can see a spike about every 78hz. It
disappears about 10MHZ and gets higher towards 14MHZ, lessens to about
18MHZ then gets really bad about 28MHZ. It is there throughout the
To be continued in digest: hd_2000_80B
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