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ZL3AI > APRDIG 25.01.07 00:04l 272 Lines 9417 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 31 #25, 2/3
Path: DB0FHN<DB0RGB<DB0MRW<OK0PPL<DB0RES<ON0AR<ZL2BAU
Sent: 070124/2237Z @:ZL2BAU.#79.NZL.OC #:29001 [Waimate] $:9613-ZL3AI
From: ZL3AI@ZL2BAU.#79.NZL.OC
To : APRDIG@WW
Message: 10
Date: Mon, 22 Jan 2007 11:55:09 -0900
From: Mullen <ad4bl_at_mosquitonet.com>
Subject: Re: [aprssig] Antenna recommendation
Hi Keith,
We are using this antenna [the x-50a] here in Alaska for our digi's,
emergency communications sites, and all our remote repeater sites. Many of
the sites are on mountain sites or high ridges. They handle the ice, snow,
and wind just fine here.
Linda
--
Linda <><
AD4BL SEC ALASKA
ad4bl_at_arrl.net
He came to pay a debt He didn't owe
Because we owed a debt we couldn't pay
Life is the childhood of eternity.
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Message: 11
Date: Mon, 22 Jan 2007 17:33:50 -0400
From: "julien mervyn dedier" <julien9z4fz_at_gmail.com>
Subject: [aprssig] console menu and tnc menu tm-d700a
Thanks for the many individual email i have receive about the kenwood radios
please read your manual this is very important,there is no need to get lost
and if lost with us all we will help all,the kenwood TM-D700A got 2 set of
menu you have the console menu and the tnc menu they are totally different
set of menu for 2 different operation in in the tm-d700a radio.
Time and time again you see post on various forum why kenwood have 2 of the
same menu well hams they are for the operation of the radio,my friends have
ask me if kenwood really knew what radio they have made and my honest
answer is the the manual could be in details more.
This is just not a ordinary radio it is the best dual bander money can buy
the radio have lots to offer,so do not be lost remember 2 separate menu tnc
menu and console menu 2 different operation the console need a call sign the
tnc nedd a call sign once you read the manual you can figure it out the only
thing should any problem is the tnc set up which all will get help with
--
THANKS
JULIEN
9Z4FZ//TRINIDSA & TOBAGO.
M0JDD//UNITED KINGDOM.
M0JDD/J3//GRENADA.
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Message: 12
Date: Mon, 22 Jan 2007 16:36:18 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: RE: [aprssig] Local Repeater Displays on Mobiles
Well, I found more of the local Voice Repeater frequency objects today.
Apparently there are 77 of them showing up with the Mic-E repeater symbol.
Unfortunately, the intent of that symbol was to indicate Mic-E repeaters
only, that is, repeaters that listen for PTT type Mic-E packets on the
input of the voice repeater. There are very few of those I think. So too
many of these symbols appear to be improperly used.
The proper symbol to use for a local voice repeater object is the "/r"
symbol.
Are there writings or postings somewhere that are giving users the wrong
idea of what symbol to use in this application? Especially since there are
over 800 stations using these symbols improperly?
Thanks,
Bob, WB4APR
>-----Original Message-----
>
>The FINDU lookup (link below) shows all APRS objects or stations
>using the QSO repeater symbol and less than 10% of them show
>their frequency as their object name so that they show up well
>on the mobile radios.
>http://www.findu.com/cgi-bin/symbol.cgi?icon=/r&limit 00
>
>
>The rest of them simply show a callsign. This makes them
>indistinguishible from just another APRS packet station when
>seen on the mobile radio's front panel station list. This is
>not very useful information when the frequency would be so
much
>more useful.
>
>For info on this Local Info Initiative, check out:
>http://www.ew.usna.edu/~bruninga/localinfo.html
>
>Bob, WB4APR
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Message: 13
Date: Mon, 22 Jan 2007 15:50:07 -0600
From: Ron Tonneson <ron.tonneson_at_gmail.com>
Subject: Re: [aprssig] Local Repeater Displays on Mobiles
Bob,
If you would take a look at W0GQ-R. Did I do it correct?
Thanks,
Ron
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Message: 14
Date: Mon, 22 Jan 2007 17:01:17 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: [aprssig] Tiny Tracker III loading?
Many APRS lessons here:
I just happened to listen to 144.39 today at work, and was surprised to
hear a very high rate packet source with a very long TXD. Turns out it was
a TInyTracker III that was tying up the channel almost 50% of all time.
Here were the problems, all further compounding the problem:
1) the TXD was too long by about a factor of 10. It was more than a full 1
second long when it should be as short as 100ms or so.
2) It was using a 3 hop path in the middle of the highest density APRS
system (outside of LA). Only 2 Hops are recommended in this area.
3) The smart algorithm was too tight. It generated 30+ packets just
driving the first 0.5 mile from his work QTH in under 3 minutes.
I would never have noticed this without listening to the audio. His packets
were coming so fast, that the digipeaters were stepping all over each other
and so not all that much got out. Certainly not enough to see all 30 posits
in 3 minutes over 0.5 mile. (But I was direct so I saw it just fine).
Anyway, we need to be very vigilant about improper settings that might kill
the network. Sometimes the worse they are, the less they can be seen by
just looking at the map or looking at successful packets. Sometimes you
have to just listen to the audio to see what is happening on the net.
LISTEN everynow and then. Fix what is broke.
Bob, WB4APR
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Message: 15
Date: Mon, 22 Jan 2007 17:03:24 -0500 (EST)
From: Doug Ferrell <kd4moj_at_kd4moj.org>
Subject: Re: [aprssig] Antenna recommendation
On Mon, 22 Jan 2007, Stephen Brown Jr wrote:
>Digi owners, can you recommend a decent antenna that is inexpensive (<=$100)
>for an APRS digipeater? I just installed a remote WX station and he
>currently has a yagi on it pointing back to me and I have offered to change
>it out with something omni-directional to enable digipeater functions. I am
>seriously considering a Cushcraft Ringo Ranger, the site is located at about
>1900ft here in the mountains of East TN and the antenna will be at the 50ft
>mark on the tower.
Stephen a Diamond X50 is about the best bet for the price range. One piece
fiberglass and decent gain. Ringo Rangers will probably give you a
maintenance headache (not fiberglass and has the tuning nut/bolt exposed).
maybe at 50feet that won't be a problem but I like sticking with the
fiberglass models. I have some up 5 plus years...
....DOUG
KD4MOJ
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Message: 16
Date: Mon, 22 Jan 2007 17:19:00 -0500
From: "Robert Bruninga" <bruninga_at_usna.edu>
Subject: RE: [aprssig] Local Repeater Displays on Mobiles
List'" <aprssig_at_lists.tapr.org>
>If you would take a look at W0GQ-R. Did I do it correct?
;W0GQ-R *192245z4158.56N/09140.24Wr146.745- PL open
Well, actually no. But thanks for asking.. I see a few improvements that
can be made.
1) Only the call shows on the map/D700 and not the freq.
2) It does not include the PHG data for displaying its range
3) It did not use the 111111z standard to make it permanent.
So here is how I recommend it:
;146.745- *111111z4158.56N/09140.24WrPHGxxxx PL is open W0GQ-R
That fixes all the problems and by adding the word "is", then it fits
nicely on the display of a D7 or D700 mobile. You fill in the values for
the xxxx PHG digits. If you don't know, just tell me the estimated Height
above average terrain in the area, the estimated power, any favored
direction, and the estimated antenna gain and Ill send you back the right
values.
Doing it the way I recommended, it will show on a D7 mobile display as:
+------------+
| 146.745- |
| PL is OPEN |
| W0GQ-R |
+------------+
And the PHG data would show as:
+-------------+
| 146.745- |
| pw 9W h0040'|
| ant6dB omni |
+-------------+
If it was running 9 watts at 40 feet with a 6 dB omni antenna. Most APRS
clients would then plot a range circle around that repeater to show it's
useable range if requested.
Thanks
Bob, Wb4APR
------------------------------
Message: 17
Date: Mon, 22 Jan 2007 15:01:27 -0800
From: "VE7GDH" <ve7gdh_at_rac.ca>
Subject: Re: [aprssig] Antenna recommendation
Linda AD4BL wrote...
>We are using this antenna [the x-50a] here in Alaska for our digi's,
>emergency communications sites, and all our remote repeater sites.
>Many of the sites are on mountain sites or high ridges. They handle
>the ice, snow, and wind just fine here.
Perhaps we have more wind and ice here - hi! The two X-50A antennas that
I'm referring to were installed at about 7500' ASL in a location that us
subject to icing and routinely gets wind in the 150 kph range a few times
each winter. We had antennas just plain disappear when they had ice built
up on them and they were thrashed to death in the wind. Admittedly, they
were antennas that shouldn't have been installed there. The X-50As look
pretty tough, but without fail, the locking screw at the mount came loose
and fell out. I don't know if something like locktite would have prevented
it. I'm glad that your antennas are surviving (so far) but my experience
was that the locking screw right at the mount was a problem. One of the
antennas is being used now in a less harsh environment, probably with an
over-sized locking screw. The other is set up in a portable installation
from time to time. I would never install one in an alpine environment again
though.
73 es cul - Keith VE7GDH
--
"I may be lost, but I know exactly where I am!"
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