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ZL3AI > APRDIG 11.02.04 13:20l 235 Lines 9229 Bytes #999 (0) @ WW
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From: ZL3AI@ZL3VML.#80.NZL.OC
To : APRDIG@WW
Subject: Re: Repeater Objects [WAS: APRS objects]
From: Richard Garcia <k4gps@bellsouth.net>
Date: 09 Feb 2004 15:58:57 -0500
X-Message-Number: 24
I got to disagree here with Bob. I don't know where the 20K repeater
numbers come from but if it is based on the ARRL directory that explains
it. The directory is worthless and I have not purchaed one in years since 9
out of 10 times I try a directory repeater it is off the air or more likley
never had been on the air. I have also had the occasion to monitor a actual
repeater for weeks at a time and not heard even an ID unless I keyed it up.
If I see a position come out with a repeater frequency and PL I know that
someone at least cares enough to advertise it and chances are that someone
if not more than one on that repeater at least knows what APRS is. Not that
it matters since there are other things to talk about other than APRS.
I place an object out on the Internet for my repeater that includes the
frequency and Echolink #. On RF the beacon includes the frequency and PL
via 1 hop. Recently an OTR Driver came up on frequency and stated that he
saw the position but was out of range but left the frequency tuned in. By
the time he was in range I was tossing out my call on the repeater and he
heard me and we had a nice long chat while he crossed 2 counties on his way
to CA from FL.
I don't think there is anything wrong with 1 hop depending on repeater
coverage maybe even 2 or even the positions of ANY "live" repeater. I
appreciate them and I am sure travelers do also, I have no other way to
find real machines other than just scanning 145-148 and that does not tell
me anything unless there are people talking. Repeaters are going away in
many areas just like CW or AM. There are still some out there but they are
fading away due to the greed of tower companies, rooftops and lawyers that
love liability claims not to mention many amateurs with the inability to
build or maintain them as the old salts die off.
Rich
K4GPS
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Subject: Re: Repeater Objects [WAS: APRS objects]
From: isobar@bcpl.net
Date: Mon, 09 Feb 2004 16:56:14 -0500
X-Message-Number: 25
It seems that there are good reasons for broadcasting repeater freqs on
144.39 (to alert transients that there's a decent voice repeater around?
any other reasons?), but that this adds to the net loading & qrm which is
getting pretty tight in some (many?) areas.
Maybe digis could replace their calls with the local repeater freq and
embed their real calls in the status section. That way, no additional qrm,
the passer through gets to see the local repeater freq, and it's still a
legal ID (maybe?). Will client programs accept numerical "call signs"?
Again I haven't given this much thought ands maybe there's not much of a
problem with one or 2 repeater freq objects. But it could grow.
Bob Kirk
N3OZB
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Subject: Re: Repeater Objects [WAS: APRS objects]
From: Frank - KG6JVE <kg6jve@pasadena.net>
Date: Mon, 9 Feb 2004 13:57:43 -0800 (PST)
X-Message-Number: 26
I like the idea of what I seem to remember called tiny web pages, where
you can query a station with a message and ask for information on various
local services.
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Subject: ISS APRS status?
From: Frank - KG6JVE <kg6jve@pasadena.net>
Date: Mon, 9 Feb 2004 14:06:15 -0800 (PST)
X-Message-Number: 27
Two passes over Southern California yesterday evening and one this morning
I heard no traffic from ISS. The http://www.ariss.net page shows the last
contact nearly 24 hours ago. Is there any information on this?
Thank you
Frank
KG6JVE
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Subject: Re: Repeater Objects [WAS: APRS objects]
From: "Scott Miller" <scott@opentrac.org>
Date: Mon, 9 Feb 2004 14:15:18 -0800
X-Message-Number: 28
This is why I believe we need to re-think how objects are handled. APRS
was designed to present changing data, with newer data being repeated more
often. It's increasingly being used to present fairly static data like
repeaters and EOCs. While there's some merit in having an EOC station
transmit from time to time to let you know it's working, for third-party
objects like repeaters I'd rather have the digi act as keeper of that
information, and retransmit it during a specified period. You could
maintain a 10-minute net cycle time with a single 5-second burst every 10
minutes. That's over 700 bytes of static information - enough for several
repeater announcements and such.
Scott
N1VG
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Subject: Re: ISS APRS status?
From: "Scott Miller" <scott@opentrac.org>
Date: Mon, 9 Feb 2004 14:27:00 -0800
X-Message-Number: 29
Maybe that's what the mysterious object seen floating away from ISS was...
http://www.wftv.com/news/2828549/detail.html
Foale spotted a six to eight inch piece of debris floating away after a
Russian capsule docked. Anyway to check if the antenna is still there? =]
Scott
N1VG
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Subject: RE: APRS objects
From: "Bob Powers" <powersb@opencominc.com>
Date: Mon, 9 Feb 2004 18:43:28 -0600
X-Message-Number: 30
I just checked mine. We have an object in the area with a decimal. I'm
receiving it with a D700 and a Garmin Streetpilot III. I don't get the
error. My waypoint on the GPS just shows up with a space instead of the
decimal.
So I guess it doesn't happen with all Garmins. Curious what model Garmin
you have Bob
Bob Powers
N=D8YKX
n0ykx@arrl.net
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Subject: APRS protocol for auto QSY
From: Bob Bruninga <bruninga@usna.edu>
Date: Mon, 9 Feb 2004 20:47:22 -0500 (EST)
X-Message-Number: 31
N1VG wrote:
>Where are they defined? I can't recall seeing them in either the spec
>or your erratta page.
Here is the protocol we discussed around July 2002
------------------------------------------------------------------
We want to add PIC processor externally to D700, so we want to make sure
we have a GOOD QSY protocol first.
The QSY function in APRS has several contributing functions:
1) Transmit format for sender to indicat his QSY intentions
2) Receiver options for receiver to choose what QSY's he will accept
3) Auto FREQ-STATUS shown in Position status of PTT band.
4) 10? QSY Memories
These let the Sender determine the type of QSY he suggests and lets
the receiver decide on what basis he is willing to QSY. Further, the
receiver options can depend on whether the QSY packet is a message to
only this station, or whether it is a bulletin to all.
APPLICATIONS:
1) You must contact station X, so you send him a QSY command to your freq
2) Mobile receives an IRLP or ILink voice call. IRLP system commands
mobile to frequency to receive his call
3) Mobile enters new area and his 10 channel QSY memorys will be filled
LOCALLY according to what are best for his needs
4) AUTO DFing by signal strength (Ping all local radios for Sig Str)
5) Ability to see what channel a mobile is monitoring in his status text
6) Many,Many more
FORMAT: message/bulletin with Type,RXfreq,PL,TXfreq,Range,NAME,comment
EXAMPLES:
QSY>146.520,,,5,SIMPLEX,See ya there - QSY as shown
QSY!146.940,179,146.340,30,HAMFEST,talkin - Special event
QSY+146.940,179,146.340,20,AARC,APRS Club - Add to QSY Memory
QSY^145.800,,145.990,999,ISS,in view - QSY for Satellite
QSY?146.520,,,,FOX,Foxhunt - QSY,take sig & report
QSY=445.975,D12,144.390,10,IGATE,Aprsserve - QSY APRS Band to this
channel (usually a 9600 baud 100% data feed from the internet)
D12 means 1200 baud data or D96 means 9600 baud data
RECEIVER OPTIONS:
OFF
Accept QSY Memories (BLNS or MSGS)
QSY for SPECIAL (BLNS or MSGS)
QSY for Satellites (BLNS or MSGS)
QSY-Check for DF (BLNS or MSGS)
QSY for MY MSGS
QSY for ANY BLN or MSG (including messages to others)
QSY only if range is less than X....
If the above criteria are MET, the radio QSY's and FLASHES the QSY message
saying "QSY-ING NOW". If the criterial are not met, while a QSY message
is normally flashing on the front panel, a HOT key during those 10
seconds asks "ACCEPT?"
Notice that a CALLSIGN (or object name) is associated with the QSY. This
can be internally compared to the STATION LIST to deterimine if the item
is in RANGE or not. Then the user can always "Select to QSY to the
CLOSEST QSY memory" or to only automatically QSY to a QSY command if it is
within a certain range...
de WB4APR@amsat.org, Bob
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Subject: Re: Garmin GPS-2+ Power/Data Cable
From: "Matt Werner" <kb0kqa@arrl.net>
Date: Mon, 9 Feb 2004 20:39:48 -0600
X-Message-Number: 32
Take a look at http://www.pfranc.com/ . These are good quality cables at
decent prices. I have one for my II+ and one for a Geko.
73 - Matt
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