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ZL3AI > APRDIG 20.05.07 01:57l 256 Lines 8936 Bytes #999 (0) @ WW
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Subj: [APRSSIG] Vol 35 #11, 1/1
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From: ZL3AI@ZL2BAU.#79.NZL.OC
To : APRDIG@WW
Today's Topics:
1. Re: Lasting Compatibility of the D700a (Joel Maslak)
2. RE: Lasting Compatibility of the D700a ('Scott Miller')
3. RE: Lasting Compatibility of the D700a (Jason Rausch)
4. HF APRS (John)
5. Re: HF APRS (ke7xo)
6. Xastir on OS X (Jeff Davis, KE9V)
7. Re: Xastir on OS X (Jason Winningham)
8. Re: Xastir on OS X (Jeff Davis, KE9V)
----------------------------------------------------------------------
Message: 1
Date: Fri, 11 May 2007 10:59:38 -0600
From: Joel Maslak <jmaslak-aprs_at_antelope.net>
Subject: Re: [aprssig] Lasting Compatibility of the D700a
On May 11, 2007, at 10:37 AM, Matt Werner wrote:
>You talk about maintaining on-air-compatibility - that's something the
>Kenwood lacks in some areas BECAUSE of it's lack of updates. On top
>of that, we're now left with a spec that is catering to a device that
>can't be updated. We're left with a system that will never evolve
>with the times.
Agreed. Wouldn't it be great, for instance, if you could set the D700 to
automatically tune in the voice repeater broadcast by the closest digi? Or
configure it as a WIDEN-n digi from the front panel? Beep when another
station is within XXX miles, or maybe just when the other station is
mobile? Be able to hook up a laptop without losing the front panel display
for APRS? Automatically try RELAY,WIDE if WIDEN-n doesn't work? Sort
objects by icon (find the lead and tail bicycle in a race?). Fix the
message length so that you can send full length messages to/from a D700
(one long message is *MUCH* better on the network than two short ones)?
Change the TXDelay? Autotune satellites when outside of digi range (it
knows it's position and could read APRS sat Keps from APRS), with some
Doppler shift adjustment? Statistics display (number of packets received
in the last X, Y, and Z minutes, number of own digipetes heard, etc)? A
new user "wizard" to ask the user things like callsign, whether they are
stationary or mobile (to set path and beacon rate), etc - and fix the
problem that Kenwood's defaults are just plain wrong. Adaptive beaconing
(SmartBeacon, less beacons on busy networks, more beacons on sparse
networks, proportional pathing, etc) Etc. Most of these wouldn't break
the "consistent" interface of the D700.
It's strange but when Xastir doesn't support feature X (ironically, it
usually does), we hear about how DOSAPRS supports it, but rarely does the
Kenwood come anywhere close to supporting it. But this is okay,
apparently. They are Kenwood.
I can think of 100 other things that would be nearly trivial to implement
if the firmware was upgradable which would make the unit work much better
for us (I'd be glad to sacrifice the code space used for the HF remote
station stuff, for instance). In the meantime, I'm hoping for the HamHUD V
to become available within the next couple years. :)
------------------------------
Message: 2
Date: Fri, 11 May 2007 10:28:26 -0700
From: "'Scott Miller'" <scott_at_opentrac.org>
Subject: RE: [aprssig] Lasting Compatibility of the D700a
From an economic perspective, there's a major advantage to field updatable
firmware. If updating the firmware requires factory service, then the cost
of any bug is going to be high - either the cost to correct it, or the
dissatisfaction of the end user in having to use a flawed product.
Accordingly, the cost of testing is high, and it multiplies the cost of any
new feature added. There's not as much incentive to include all the bells
and whistles when they introduce more potential bugs.
I'm not saying "ship now, patch later" as practiced by some software
manufacturers is a good policy (I've seen games in particular that were
almost totally broken out of the box) but when you only have to catch 99%
of the bugs instead of 99.99%, you can save a lot of time and money. You
can also make an upgrade to the latest firmware the first step in your
support process, so you only have to support one firmware version.
Scott
N1VG
>-----Original Message-----
>
>Some of the Garmin updates (maybe half of what I've seen) are *bug
>fixes* as well as bells and whistles. The Kenwood doesn't deal with
>compressed objects, correct? It sure would have been nice to be able
>to update one to comply with the published spec...
>
>You talk about maintaining on-air-compatibility - that's something the
>Kenwood lacks in some areas BECAUSE of it's lack of updates. On top
>of that, we're now left with a spec that is catering to a device that
>can't be updated. We're left with a system that will never evolve
>with the times.
>
>On 5/11/07, Robert Bruninga <bruninga_at_usna.edu> wrote:
>>>... the only bad thing about the d700a is the
>>>fact you cant flash it. The way Garmin
>>>does updates works VERY well...
>>
>>Garmin's are personal devices that have no need to be compatible
>>with each other. On the other hand, the stability of APRS as a
>>common protocol instead of a constantly moving target of bell's
>>and whistles has a certain value in maintining
>>on-air-compatibility.
>>
>>As a communicaitons system, the intent of APRS was to make sure
>>that all recepients saw the same tactical info in the same
>>context. Without consistency, a tower-of-babble results and
>>communications reliability is deminished in some cases instead
>>of enhanced.
>>
>>In that sense, there is value in the fact that the radio cannot
>>be flashed and will always be compatible with all the other
>>tens' of thousands of D700's out there, without having to
>>download a new "version" every month or so for the life of the
>>radio.
>>
>>Just the flip side.
>>
>>Bob, WB4APR
------------------------------
Message: 3
Date: Fri, 11 May 2007 11:35:28 -0700 (PDT)
From: Jason Rausch <jason_at_ke4nyv.com>
Subject: RE: [aprssig] Lasting Compatibility of the D700a
I think the thing that bugs me the most about Kenwoods lack of
user-flashing capability is the fact that you have to take the time and
money to ship the radio to them, so they can reflash it for a fee.
The way I see that, you are paying for their mistakes. I understand that
nothing is perfect when it ships, but geez, you would think they would
throw a bone here. You already pay a small fortune for the radio as is.
Jason KE4NYV
RPC Electronics
www.rpc-electronics.com
------------------------------
Message: 4
Date: Fri, 11 May 2007 21:54:50 -0400
From: John <johnk.mchugh_at_att.net>
Subject: [aprssig] HF APRS
Hi,
How does your HF APRS map look for the last few days?
Mine is totally empty and I hear alot of chirping junk on 10.151. I even
tried going on the other side to 10.146.6 and still get nothing. Is HF
prop bad or is it on my end?
John
--
John Mc Hugh, K4AG
Coordinator for Amateur Radio
National Hurricane Center, WX4NHC
Home page:- http://www.wx4nhc.org
------------------------------
Message: 5
Date: Fri, 11 May 2007 19:24:55 -0700
From: ke7xo <ke7xo_at_cox.net>
Subject: Re: [aprssig] HF APRS
everything is great out here in Las Vegas.. at 0400 Sat, I show on the map
k1lch
ve2ten
kf5et
km5hg
ab9ft
ve4gls
w7ccy
w6oth
the 'junk' you hear is probably Pactor.. is has a very raspy sound when
in Pactor 3 mode...
Richard
------------------------------
Message: 6
Date: Sat, 12 May 2007 11:24:31 -0400
From: "Jeff Davis, KE9V" <jl.davis_at_gmail.com>
Subject: [aprssig] Xastir on OS X
Finally got around to installing X11 on the Powerbook and now I'd like to
install Xastir but I can't seem to find a pre-compiled binary? Will I have
to build it and if so can someone point me to a How-To?
Thanks,
Jeff, KE9V
------------------------------
Message: 7
Date: Sat, 12 May 2007 11:33:42 -0500
From: Jason Winningham <jdw_at_eng.uah.edu>
Subject: Re: [aprssig] Xastir on OS X
On May 12, 2007, at 10:24 AM, Jeff Davis, KE9V wrote:
>Finally got around to installing X11 on the Powerbook and now I'd
>like to install Xastir but I can't seem to find a pre-compiled
>binary? Will I have to build it and if so can someone point me to a
>How-To?
http://www.xastir.org/wiki/index.php/Installation_Notes
There is a precompiled binary for OS X, but it's a few months old.
You can subscribe to the xastir mailing list at
http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
-Jason
kg4wsv
------------------------------
Message: 8
Date: Sat, 12 May 2007 12:47:12 -0400
From: "Jeff Davis, KE9V" <jl.davis_at_gmail.com>
Subject: Re: [aprssig] Xastir on OS X
On 5/12/07, Jason Winningham <jdw_at_eng.uah.edu> wrote:
>There is a precompiled binary for OS X, but it's a few months old.
Looks like the link to it is dead.
>You can subscribe to the xastir mailing list at
>http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
Thanks for that info.
Jeff, KE9V
------------------------------
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End of aprssig Digest, Vol 35, Issue 11
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