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ZL3AI > APRDIG 13.07.03 14:36l 49 Lines 1810 Bytes #999 (0) @ WW
BID : 1604-ZL3AI
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Subj: TAPR Digest, Jul 10, 4/4
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<ON0AR<VK6HGR<ZL2BAU<ZL3VML
Sent: 030712/1334Z @:ZL3VML.#80.NZL.OC #:4233 [Chch-NZ] FBB7.00i $:1604-ZL3AI
From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: today's test results
From: wes@johnston.net
Date: Thu, 10 Jul 2003 17:53:57 -0400 (EDT)
X-Message-Number: 25
I suppose the phase of the moon could effect it too.... there are only so
many things I can compensate for. It seems that the more I test, the more
variables you throw into the mix. I appreciate the suggestions though.
Some of the things you have brought up are the sort of things that, if
unexpected, would make me stop and go "Dohhhhh!".
Wes
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Subject: Re: Thoughts? on hidden transmitter
From: "Mark Fellhauer" <sparkfel@qwest.net>
Date: Thu, 10 Jul 2003 17:21:06 -0500
X-Message-Number: 26
At 10:58 AM 7/10/2003, Jerrold Billmyer wrote:
>I read with interest the posts on hidden transmitters. Here in MD the main
>reason IMHO that packets don't get through is too much traffic.
Nobody here is arguing that in major urban areas that the frequency isn't
busy, but the point is that some people seem to believe that without all
those other people their successful mobile digipeat rate should be in the
90's pecentwise. Well, it just isn't so. I would say based on my 8 or
so years of experience in mobile APRS ops, that a 30 percent failure rate
isn't out of the ordinary, based on variables other than "hidden
transmitters."
Go to a good digi site and physically monitor monitor the audio (preferably
with headphones). You'll be amazed at the variations in packet tones,
clarity, and volume levels. Someone around here is running some kind of
TNC that makes these sickly tones that I'm sure causes problems with him
getting digipeated. I e-mailed him and he's never corrected or
investigated the problem...
Mark
KC7BXS
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END OF DIGEST
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