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ZL3AI > APRDIG 21.06.03 18:50l 231 Lines 7326 Bytes #999 (0) @ WW
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Subj: TAPR Digest, Jun 13, 2/2
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: aprssig digest: June 12, 2003
From: "Demetre Valaris" <sv1uy@sv1uy.ampr.org>
Date: Fri, 13 Jun 2003 16:44:48 +0300
X-Message-Number: 5
Hi Alex,
As I said in a previous message of mine a couple of weeks ago, a badly
regulated PSU on any HOME station or DIGI did cause noticeable problems. When
I changed to 136.5 HZ this problem stopped.-
As for the ghosts and ghost busters, no comment!!!
===
73 de Demetre SV1UY
e-mail: sv1uy at sv1uy.ampr.org
PACKET MAIL: SV1UY@SV1UY.ATH.GRC.EURO
http://www.athnet.ampr.org/~sv1uy
----------------------------------------------------------------------
Subject: Re: VOICE ALERT for Europe
From: Alex <kr1st@amsat.org>
Date: Fri, 13 Jun 2003 10:39:28 -0400
X-Message-Number: 6
Bob Bruninga wrote:
>If you run CTCSS-100 in Europe
>your squelch opens up falsely sometimes due to all the 50 Hz harmonics.
I see. The 2896000th harmonic of 50Hz is right on 144.800Mhz. Who
would've thunk. And there are at least a 100 of 'em in an FM receiver's
passband. Phew, I'm glad I don't live in Europe.
73,
--Alex KR1ST (poltergeist)
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Subject: Re: VOICE ALERT for Europe
From: "AE5PL Lists" <HamLists@ametx.com>
Date: Fri, 13 Jun 2003 10:01:42 -0500
X-Message-Number: 7
Alex,
An AC power supply's DC output has an effect called ripple. This ripple is
sometimes heard on transmitted radio signals as a low hum. Extensive
filtering reduces this hum to subaudible but does not eliminate it. As
with any waveform, there are harmonics. If the source power is 50 Hz
(Europe and most of the world outside of North America), this 50 Hz
subaudible hum will have a second harmonic of 100 Hz. Therefore, if you
set your radio to decode 100 Hz tones and a fixed station is transmitting,
your squelch may break due to the fixed station's power supply introducing
a 50 Hz ripple into the transmitted audio.
This is one reason why CTSS tones (developed in the USA by Motorola (PL is
no longer used as the acronym as it is trademarked) do not have a 120 Hz
tone setting.
73,
Pete Loveall AE5PL
pete@ae5pl.net
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Subject: Re: Better than 52 simplex
From: Alex <kr1st@amsat.org>
Date: Fri, 13 Jun 2003 11:08:51 -0400
X-Message-Number: 8
Bob Bruninga wrote:
>If you're on a long trip and cant find anyone to talk to just activate
>your mobile HAM "radar" detector.
You know, one very interesting concept implemented in the Cybikos is that
they know of each other's existence. There's a lil' icon on the screen that
tells you how many folks are within range and you can get a list of
stations along with some descriptive attributes. Much like APRS. They use
one control channel to exchange information and if you decide you want to
have a chat with them, you give the other party a buzz. If the other party
agrees, both Cybikos change to what is called an application channel
(actual QSY) for the chat session and they return to the control channel
when done.
It really is too bad that they never made their CyRF protocol public. It's
a rather unique and complete protocol. It's somewhat similar to a trunked
system, but without the repeaters.
73,
--Alex KR1ST (in the sandbox)
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Subject: Re: PIC accessory for Mobile APRS
From: "Ken Patterson" <kenp@etex.net>
Date: Fri, 13 Jun 2003 16:04:34 -0000
X-Message-Number: 9
Bob, would it be correct to deduce from your posting that Kenwood will not
have a software upgrade for the D700 as they did for the D7?
de Ken,
N5EQT
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Subject: ProtoPath List - WinAPRS v2.61
From: Glenn Wiebe <gswiebe@mts.net>
Date: Fri, 13 Jun 2003 11:04:56 -0500
X-Message-Number: 10
Until recently I thought that the digipeaters were listed in the order
that the originating station sent them. Then I saw the following:
VE4GIL-3* Wide5-2. The station in question way to far away from VE4GIL-3
to get in directly. How exactly does it work?
Thanks...73 de Glenn...VE4GN
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Subject: Re: PIC accessory for Mobile APRS
From: David VanHorn <dvanhorn@cedar.net>
Date: Fri, 13 Jun 2003 11:19:50 -0500
X-Message-Number: 11
>Now, who wants a new PIC project
I could see this in an AVR, powered by the serial interface. :)
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Subject: Re: ProtoPath List - WinAPRS v2.61
From: "Matt Werner" <mwerner@duluth.com>
Date: Fri, 13 Jun 2003 11:42:45 -0500
X-Message-Number: 12
I just read an interesting article yesterday referring to that (I
believe)...
http://web.usna.navy.mil/~bruninga/aprs/id-noid.txt
73 - Matt
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Subject: test - please ignore this message
From: "Rochte, Robert" <rrochte@gpacademy.org>
Date: Fri, 13 Jun 2003 13:36:52 -0400
X-Message-Number: 13
Trying to disable RTF on my Exchange Server so that Lyris will stop
squawking about it....
----------------------------------------------------------------------
Subject: findU network problem
From: Steve Dimse <k4hg@tapr.org>
Date: Fri, 13 Jun 2003 15:22:24 -0400
X-Message-Number: 14
The entire class C network findU is on seems to have dropped off the
internet, no idea why or when it will be back, not something I caused or
can control.
www2.findu.com is working, though it may not have the latest version of all
the cgi's.
Steve K4HG
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Subject: Re: VOICE ALERT for Europe
From: "Charles H. Rahe, II" <crahe@infionline.net>
Date: Fri, 13 Jun 2003 18:57:03 -0400
X-Message-Number: 15
And if the rectifier is a full wave circuit the ripple is actually
generated at twice the input frequency so the 100 HZ or 120 HZ can be
fairly strong if the filtering is not sufficient for the load.
----------------------------------------------------------------------
Subject: Digis and UI-digis
From: "Neville A. Cross" <yn1ncv@arrl.net>
Date: Fri, 13 Jun 2003 19:33:51 -0600
X-Message-Number: 16
Hello
I am quite new to APRS and I am trying to share some packet nodes with APRS
use. There won't be any problem about crowded frequency, as there are not
that much users. My question is simple where I can read about how the digis
and UIdigis work? Specially focused on the calls and order in which the
repeat those calls. Also interested on how to program the unproto. By the
way, no elmer around to ask face to face.
Thanks
Neville A. Cross
YN1NCV
Managua, Nicaragua
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Subject: APRS+ KipSS & AGWPE Info
From: "Ken Patterson" <kenp@etex.net>
Date: Sat, 14 Jun 2003 03:34:36 -0000
X-Message-Number: 17
Anyone on the SIG here using APRS+SA with KipSS and AGWPE for a digipeater
and/or I-gate?
I replaced my antiquated KPC-2 I-gate TNC with soundcard TNC and am having
problems with things like failed delivery of e-mail message acks. I suspect
the problem is in the setup or ini files. I would just like some
confirmation before I dive in and start changing things.
de Ken,
N5EQT
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END OF DIGEST
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