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CX2SA > SATDIG 06.11.15 17:41l 774 Lines 29846 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. PARC presentation on Phase 4B (Robert McGwier)
2. Satellite APRS Double hop (Sil)
3. AO-85 vs SO-50 for newbies with modest equipment (Felix Paez)
4. Re: AO-85 vs SO-50 for newbies with modest equipment
(skristof@xxxxxxx.xxxx
5. Re: AO-85 vs SO-50 for newbies with modest equipment
(Burns Fisher)
6. Re: AO-85 vs SO-50 for newbies with modest equipment
(Daniel Est?vez)
7. Re: Open source APRS tracker Kickstarter (Thomas Doyle)
8. Re: Satellite APRS Double hop (Robert Bruninga)
9. BRICSAT-1 recovery challenge (Robert Bruninga)
10. Re: Open source APRS tracker Kickstarter (Robert Bruninga)
11. Re: Open source APRS tracker Kickstarter (Bryce Salmi)
12. Re: Open source APRS tracker Kickstarter (Joe)
----------------------------------------------------------------------
Message: 1
Date: Thu, 5 Nov 2015 22:54:06 -0600
From: Robert McGwier <rwmcgwier@xxxxx.xxx>
To: amsat bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] PARC presentation on Phase 4B
Message-ID:
<CA+K5gzeB_dJHt3pOQ2ikkEZ-Cv-4c+kMf7fEvtUYc9qBgEafgA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Last night W5NYV, KA9Q, KB5MU, KF6WTN made a presentation to the Palomar
Amateur Radio Club about Phase 4B. Project member KA6OYD was in
attendance. I was sorry I could not be there but I enjoyed this live
streaming. You can enjoy it and learn from it on youtube.
https://youtu.be/-pjsS4OLg8w
--
Bob McGwier
Founder, Federated Wireless, Inc
Founder and Technical Advisor, HawkEye 360, Inc
Research Professor Virginia Tech
Dir. Research: The Ted and Karyn Hume Center for National Security and
Technology
Senior Member IEEE, Facebook: N4HYBob, ARS: N4HY
Faculty Advisor Virginia Tech Amateur Radio Assn. (K4KDJ)
Director of AMSAT
------------------------------
Message: 2
Date: Fri, 6 Nov 2015 20:43:01 +1300
From: Sil <sil@xxxxxxxxx.xx.xx>
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Satellite APRS Double hop
Message-ID: <563C5A05.702@xxxxxxxxx.xx.xx>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi,
This afternoon both PSAT and the ISS were visible from my location at
the same time and likely close enough to each other that a "double hop"
was probably possible.
I am not sure what the best path to use would be to do this. Any
suggestions? It would be fun to make an QSO into Western Australia this way.
Sil
------------------------------
Message: 3
Date: Fri, 6 Nov 2015 12:09:07 +0100
From: Felix Paez <ea4gqs@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] AO-85 vs SO-50 for newbies with modest equipment
Message-ID:
<CAGfY+e3o0Bp7hJd+mapu-tSOQqmEgM-ofo9=N9Cn8x2fq67bJQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi everybody from Spain,
first of all, thanks for your patience. I am a new HAM since October 2014
and I have just begun with satellites some months ago...
I want to add the point of view of a newbie to sat operation like me to the
list, specially for people that could be beginning like me.
First of all, as a newbie, I only have a Baofeng UV-5R (half duplex) and an
Elk Antenna. I think this could be the very first beginning equipment for
everybody (this is only 30 eur + 200 eur = 230 eur). I use ISS detector for
tracking (it is better for me than Amsat Droid Free because it has a
compass, so the track is really easy).
When a SAT is going to pass near my QTH I go down to a park after walking
15 mins and there I connect the Elk to the Baofeng.
With this, it has been very easy for me making contacts in SO-50 including
not very high passes. Why? Because when I hear people I know I can work
them. When I hear somebody calling, I am sure that when I press the PTT i
will be in the SAT. Hearing people gives you a lot of information in SO-50.
This is not the same when I try AO-85. I hear people all the time, but that
does not guarantee me they will hear me. Maybe I am 5 Khz down or maybe I
am 5 Khz up and because I am working half duplex, I can't check it. I have
to wait for silences and try other freq. I haven't been able yet to make a
contact in AO-85.
The conclusion for me is that it is easy to work V/U FM satellites in half
duplex and it is complicated in U/V at least for people beginning like me.
I tell this because I have read in the AO-85 document all the advantages
that U/V mode has but I don't know if that compensates the added difficult
it has for people working with modest half duplex equipment. So this does
not seem an entry satellite to begin with...
This is a just beginner comment on the SAT. I am sure in next passes I will
be able to make some contacts with some luck (I am going to buy a Midland
CT-890 full duplex HT too).
I want to congrat the AO-85 team for their work. It is indeed a great sat!
:) but I wanted to share my thought about if it is not better to have and
V/U repeater than an U/V one.
Thanks everybody. I am learning a lot with this list.
Felix - EA4GQS
------------------------------
Message: 4
Date: Fri, 06 Nov 2015 08:55:13 -0500
From: skristof@xxxxxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] AO-85 vs SO-50 for newbies with modest
equipment
Message-ID: <0798ed8b9de77ba5649799c54e2140f6@xxxxxxx.xxx>
Content-Type: text/plain
Thank you, Felix.
As with any email list there will be people who disagree with you.
However, I agree with your conclusion. I have made many contacts on
SO-50.
But, based on reading all the problems people are having with AO-85, I
have yet to try a contact on that satellite.
I'm sure I will try it at some time, and eventually I will probably come
up with a contact, but I do agree that V/U satellites should be easier
to work in principle.
Steve AI9IN
On 2015-11-06 06:09, Felix Paez wrote:
> Hi everybody from Spain,
>
> first of all, thanks for your patience. I am a new HAM since October 2014
> and I have just begun with satellites some months ago...
>
> I want to add the point of view of a newbie to sat operation like me to the
> list, specially for people that could be beginning like me.
>
> First of all, as a newbie, I only have a Baofeng UV-5R (half duplex) and an
> Elk Antenna. I think this could be the very first beginning equipment for
> everybody (this is only 30 eur + 200 eur = 230 eur). I use ISS detector for
> tracking (it is better for me than Amsat Droid Free because it has a
> compass, so the track is really easy).
>
> When a SAT is going to pass near my QTH I go down to a park after walking
> 15 mins and there I connect the Elk to the Baofeng.
>
> With this, it has been very easy for me making contacts in SO-50 including
> not very high passes. Why? Because when I hear people I know I can work
> them. When I hear somebody calling, I am sure that when I press the PTT i
> will be in the SAT. Hearing people gives you a lot of information in SO-50.
>
> This is not the same when I try AO-85. I hear people all the time, but that
> does not guarantee me they will hear me. Maybe I am 5 Khz down or maybe I
> am 5 Khz up and because I am working half duplex, I can't check it. I have
> to wait for silences and try other freq. I haven't been able yet to make a
> contact in AO-85.
>
> The conclusion for me is that it is easy to work V/U FM satellites in half
> duplex and it is complicated in U/V at least for people beginning like me.
>
> I tell this because I have read in the AO-85 document all the advantages
> that U/V mode has but I don't know if that compensates the added difficult
> it has for people working with modest half duplex equipment. So this does
> not seem an entry satellite to begin with...
>
> This is a just beginner comment on the SAT. I am sure in next passes I will
> be able to make some contacts with some luck (I am going to buy a Midland
> CT-890 full duplex HT too).
>
> I want to congrat the AO-85 team for their work. It is indeed a great sat!
> :) but I wanted to share my thought about if it is not better to have and
> V/U repeater than an U/V one.
>
> Thanks everybody. I am learning a lot with this list.
>
> Felix - EA4GQS
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb [1]
Links:
------
[1] http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Fri, 6 Nov 2015 09:04:58 -0500
From: Burns Fisher <burns@xxxxxx.xx>
To: Felix Paez <ea4gqs@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-85 vs SO-50 for newbies with modest
equipment
Message-ID:
<CABX7KxWb4mceVyf8NKvWGHQBC3XRjaQPVV7yBB1jJNSp4_dAaA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hola Felix,
I just wanted to say something about your thought that the issue with
AO-85 is U/V vs V/U. We realize there are issues with AO-85, but this
is not necessarily related to the uplink vs downlink band. We plan to
address the issues that have been found on future members of the Fox-1
series.
If you are on Facebook, you might want to check out the AMSAT North
America group. There is also an AMSAT-UK Facebook group and probably
others.
Good luck and have fun with SO-50 as well as this great new crop of
satellites being launched all around the world!
73,
Burns W2BFJ
On Fri, Nov 6, 2015 at 6:09 AM, Felix Paez <ea4gqs@xxxxx.xxx> wrote:
> Hi everybody from Spain,
>
> first of all, thanks for your patience. I am a new HAM since October 2014
> and I have just begun with satellites some months ago...
>
> I want to add the point of view of a newbie to sat operation like me to the
> list, specially for people that could be beginning like me.
>
> First of all, as a newbie, I only have a Baofeng UV-5R (half duplex) and an
> Elk Antenna. I think this could be the very first beginning equipment for
> everybody (this is only 30 eur + 200 eur = 230 eur). I use ISS detector for
> tracking (it is better for me than Amsat Droid Free because it has a
> compass, so the track is really easy).
>
> When a SAT is going to pass near my QTH I go down to a park after walking
> 15 mins and there I connect the Elk to the Baofeng.
>
> With this, it has been very easy for me making contacts in SO-50 including
> not very high passes. Why? Because when I hear people I know I can work
> them. When I hear somebody calling, I am sure that when I press the PTT i
> will be in the SAT. Hearing people gives you a lot of information in SO-50.
>
> This is not the same when I try AO-85. I hear people all the time, but that
> does not guarantee me they will hear me. Maybe I am 5 Khz down or maybe I
> am 5 Khz up and because I am working half duplex, I can't check it. I have
> to wait for silences and try other freq. I haven't been able yet to make a
> contact in AO-85.
>
> The conclusion for me is that it is easy to work V/U FM satellites in half
> duplex and it is complicated in U/V at least for people beginning like me.
>
> I tell this because I have read in the AO-85 document all the advantages
> that U/V mode has but I don't know if that compensates the added difficult
> it has for people working with modest half duplex equipment. So this does
> not seem an entry satellite to begin with...
>
> This is a just beginner comment on the SAT. I am sure in next passes I will
> be able to make some contacts with some luck (I am going to buy a Midland
> CT-890 full duplex HT too).
>
> I want to congrat the AO-85 team for their work. It is indeed a great sat!
> :) but I wanted to share my thought about if it is not better to have and
> V/U repeater than an U/V one.
>
> Thanks everybody. I am learning a lot with this list.
>
> Felix - EA4GQS
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Fri, 6 Nov 2015 14:44:53 +0000
From: Daniel Est?vez <daniel@xxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] AO-85 vs SO-50 for newbies with modest
equipment
Message-ID: <563CBCE5.8030405@xxxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
Hi Felix,
I'm also having a bit of trouble working AO-85. My equipment for FM sats
is an arrow antenna, FT-817ND for RX and FT-2DE for TX.
With this I can work SO-50 without any problems. Whenever more that a
couple of degree's over the horizon, I can hear it well and I hit the
transponder perfectly. In fact, the UHF downlink helps a bit in pointing
the antenna, and I would usually point it by ear, having just a mental
picture of the pass. If you can hear well the downlink, then you can get
in well, because your uplink has wider beam and much more power.
However, with AO-85 it's a bit hit and miss for me. I find it a bit
difficult and random to hit the transponder, and I think it would be
almost impossible for me to work it half-duplex. I will often retry and
tweak things if not hearing myself on the downlink properly. The
downlink of AO-85 is very strong, and it can be heard with the antenna
all over the place, even pointing into the ground sometimes. So you have
to know well where the satellite is before transmitting, and listen
yourself and tweak the antenna as you transmit.
Several people report, and my experiences agree with them, that the
receiver on AO-85 is a bit deaf for some unknown reason (this has
nothing to do with the 70cm band) and that it's 5kHz low in frequency
from the published specs. Thus, I will start a pass on 436.165 and work
up from that as the pass progresses, being at about 436.175 at midpass
and 436.185 at LOS.
Regarding working full-duplex, if you're going to get a single radio to
do full-duplex, check very carefully that it won't suffer from
desensing. This can be very critical, especially when working V/U. If
you already have a UV-5R, I would probably get a second of those, or
perhaps another handheld with better sensitivity to use as RX if you
want to invest a bit more money. Of course, you'll need a duplexer to
use the elk with two radios.
73 and looking forward to working you on the birds,
Dani M0HXM/EA4GPZ.
------------------------------
Message: 7
Date: Fri, 6 Nov 2015 08:49:21 -0600
From: Thomas Doyle <tomdoyle1948@xxxxx.xxx>
To: Bryce Salmi <bryce.salmi@xxxxx.xxx>
Cc: AMSAT -BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Open source APRS tracker Kickstarter
Message-ID:
<CAHnRQRKmWKjNBwW6Au8WSpMTxpeFx2QN1qCHa+MCcfbF+57v5g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
It looks like it is time to restructure the entire APRS system. Any network
that can be brought down by non-compliant clients has a big problem and
should be restructured. Trying to police the entire world to make sure no
one violates a protocol for a large scale open access network is sure to
fail.
73 W9KE Tom Doyle
On Thu, Nov 5, 2015 at 5:56 PM, Bryce Salmi <bryce.salmi@xxxxx.xxx> wrote:
> The entire idea is that it's open source... so even if the standard code in
> the repository complies it will not stop anyone from changing it to be 1
> per second or 1 per decade... i.e you get my point.
>
> Bryce
>
> On Thu, Nov 5, 2015 at 3:19 PM, Bob <WB4SON@xxxxx.xxx> wrote:
>
> > Bob,
> >
> > You may want to share your very valid concerns with the developer of the
> > project (Mike Bales, KI6VBK) who can be reached here:
> >
> > beta@xxxxxxxxx.xxx
> >
> > SInce he's part of the group that has developed the hardware and the
> code,
> > and since it's open source, it should be possible to have the path and
> > beacon rate set properly, as long as they know what to do.
> >
> > 73, Bob, WB4SON
> >
> >
> > On Thu, Nov 5, 2015 at 6:00 PM, Robert Bruninga <bruninga@xxxx.xxx>
> wrote:
> >
> > > The #1 question is what Path this device will use. It is an
> abomination
> > > to fly such a tracker on the APRS network with a beacon rate more often
> > > than once a minute, *OR* with a path via more than 1 hop. If those
> > > limits are not implemented in hardware, these devices could trash the
> > > national APRS frequency.
> > >
> > > Half the balloons we see go up to not adhere to these APRS standards
> > > because the operators are clueless to the netwrk constraints and
> > > apparently do nothing to research the proper settings..
> > > Bob, WB4APR
> > >
> > > -----Original Message-----
> > > From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Dave
> > Webb
> > > KB1PVH
> > > Sent: Thursday, November 05, 2015 9:34 AM
> > > To: Joe
> > > Cc: AMSAT -BB
> > > Subject: Re: [amsat-bb] Open source APRS tracker Kickstarter
> > >
> > > Joe,
> > >
> > > Some of those questions are answered on this page.
> > >
> > >
> >
> https://www.kickstarter.com/projects/1250163085/tracksoar-aprs/description
> > >
> > > Dave-KB1PVH
> > >
> > > Sent from my Samsung S4
> > > _______________________________________________
> > > Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to
> > > all interested persons worldwide without requiring membership. Opinions
> > > expressed are solely those of the author, and do not reflect the
> official
> > > views of AMSAT-NA.
> > > Not an AMSAT-NA member? Join now to support the amateur satellite
> > program!
> > > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> > > _______________________________________________
> > > Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> > > to all interested persons worldwide without requiring membership.
> > Opinions
> > > expressed
> > > are solely those of the author, and do not reflect the official views
> of
> > > AMSAT-NA.
> > > Not an AMSAT-NA member? Join now to support the amateur satellite
> > program!
> > > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> > >
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership.
> Opinions
> > expressed
> > are solely those of the author, and do not reflect the official views of
> > AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
--
Sent from my computer.
tom ...
------------------------------
Message: 8
Date: Fri, 6 Nov 2015 09:51:21 -0500
From: Robert Bruninga <bruninga@xxxx.xxx>
To: Sil <sil@xxxxxxxxx.xx.xx>, AMSAT <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Satellite APRS Double hop
Message-ID: <713b686cb80e6b92eac7800c961d8abd@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
The path would be ariss,ariss
But PSAT has digipeating turned off to allow max power for the multi-user
PSK31 transponder that we think offers more value to the amsat community
though usage has been light...
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Sil
Subject: [amsat-bb] Satellite APRS Double hop
This afternoon both PSAT and the ISS were visible from my location at the
same time and likely close enough to each other that a "double hop" was
probably possible.
I am not sure what the best path to use would be to do this. Any
suggestions? It would be fun to make an QSO into Western Australia this
way.
Sil
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to
all interested persons worldwide without requiring membership. Opinions
expressed are solely those of the author, and do not reflect the official
views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Fri, 6 Nov 2015 10:11:21 -0500
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] BRICSAT-1 recovery challenge
Message-ID: <31d8e9bfd8f12ca3e6566d8f6cccc7f7@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
If anyone has 9600 baud satellite capability and is looking for a challenge,
you could be successful in recovering BRICSAT (NO83). BRICSAT simply has a
negative power budget. When it wakes up, it should be possible to get in
the command to tell it to turn off unnecessary loads and then let it achieve
full recovery. As is, it wakes up, sends a few feeble 20 second packets and
dies again.
Bricsat has another excellent PSK31 transpodner on it too. You can detect
BRICSAT when it awakes by the 20 second packet on the downlink OR by the
occasional PSK31 beacon on 435.350 MHz (+/- Doppler). Do not be confused by
PSAT which also has a PSK31 tranpsonder on the same frequency. But they
have different audio tones for the beacon.
> Downlink: 437.975 MHz, 9600 baud
> Uplink: 145.825 MHz, 9600 baud
> Latest ?guess? at the TLE (not sure if this is BRICSat)
> 1 90722U 15294.38156592 +.00051032 +00000-0 +11686-2 0 0166
> 2 90722 054.9895 030.6075 0226665 199.3544 159.8861 15.1979213102332
The commands are simple keyboard dumb terminal commands.
If you think you want to take on this challenge, contact us.
Bob Bruninga, WB4aPR
Jin Kang, KB3UKS
US Naval Academy
------------------------------
Message: 10
Date: Fri, 6 Nov 2015 10:19:03 -0500
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Open source APRS tracker Kickstarter
Message-ID: <80ec1ea7bab8c1cc4bc7faf474347b51@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
> It looks like it is time to restructure the entire APRS system
Hams do a good job of self policing when they know the requirements and
proper procedures. APRS hasn't failed in over 22 years. The purpose of
this thread is to simply remind people that balloons should use the
recommended path for balloons that can cover a million square miles, and
not the same path they use for their car locally. Bob, WB4APR
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Thomas
Doyle
Subject: Re: [amsat-bb] Open source APRS tracker Kickstarter
It looks like it is time to restructure the entire APRS system. Any
network that can be brought down by non-compliant clients has a big
problem and should be restructured. Trying to police the entire world to
make sure no one violates a protocol for a large scale open access network
is sure to fail.
73 W9KE Tom Doyle
> > On Thu, Nov 5, 2015 at 6:00 PM, Robert Bruninga wrote:
> >
>> The #1 question is what Path this device will use. It is an
abomination
>> to fly such a tracker on the APRS network with a beacon rate more
>> often than once a minute, *OR* with a path via more than 1 hop.
>> If those limits are not implemented in hardware, these devices
>> could trash the national APRS frequency.
>>
>> Half the balloons we see go up to not adhere to these APRS
>> standards because the operators are clueless to the netwrk
>> constraints and apparently do nothing to research the proper settings..
>> Bob, WB4APR
------------------------------
Message: 11
Date: Fri, 6 Nov 2015 07:28:00 -0800
From: Bryce Salmi <bryce.salmi@xxxxx.xxx>
To: Robert Bruninga <bruninga@xxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Open source APRS tracker Kickstarter
Message-ID:
<CAN5j0spTcw=peOs5uoJ=6S9P-3E4_rqZuxWBRVDgb-hP7xVuEQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
As technology and access to technology also progresses so should the
network supporting it.
On Friday, November 6, 2015, Robert Bruninga <bruninga@xxxx.xxx> wrote:
> > It looks like it is time to restructure the entire APRS system
>
> Hams do a good job of self policing when they know the requirements and
> proper procedures. APRS hasn't failed in over 22 years. The purpose of
> this thread is to simply remind people that balloons should use the
> recommended path for balloons that can cover a million square miles, and
> not the same path they use for their car locally. Bob, WB4APR
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxx <javascript:;>] On
> Behalf Of Thomas
> Doyle
> Subject: Re: [amsat-bb] Open source APRS tracker Kickstarter
>
> It looks like it is time to restructure the entire APRS system. Any
> network that can be brought down by non-compliant clients has a big
> problem and should be restructured. Trying to police the entire world to
> make sure no one violates a protocol for a large scale open access network
> is sure to fail.
>
> 73 W9KE Tom Doyle
>
> > > On Thu, Nov 5, 2015 at 6:00 PM, Robert Bruninga wrote:
> > >
> >> The #1 question is what Path this device will use. It is an
> abomination
> >> to fly such a tracker on the APRS network with a beacon rate more
> >> often than once a minute, *OR* with a path via more than 1 hop.
> >> If those limits are not implemented in hardware, these devices
> >> could trash the national APRS frequency.
> >>
> >> Half the balloons we see go up to not adhere to these APRS
> >> standards because the operators are clueless to the netwrk
> >> constraints and apparently do nothing to research the proper settings..
> >> Bob, WB4APR
> _______________________________________________
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------------------------------
Message: 12
Date: Fri, 6 Nov 2015 09:36:10 -0600
From: Joe <nss@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Open source APRS tracker Kickstarter
Message-ID: <563CC8EA.4010500@xxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
with all the new computer capabilities, couldn't a ummm filter or
something be made, that if it is a -11 signal. then regardless of what
is being sent for hops it is ignored? if above "X" feet?
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 11/6/2015 9:19 AM, Robert Bruninga wrote:
>> It looks like it is time to restructure the entire APRS system
> Hams do a good job of self policing when they know the requirements and
> proper procedures. APRS hasn't failed in over 22 years. The purpose of
> this thread is to simply remind people that balloons should use the
> recommended path for balloons that can cover a million square miles, and
> not the same path they use for their car locally. Bob, WB4APR
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Thomas
> Doyle
> Subject: Re: [amsat-bb] Open source APRS tracker Kickstarter
>
> It looks like it is time to restructure the entire APRS system. Any
> network that can be brought down by non-compliant clients has a big
> problem and should be restructured. Trying to police the entire world to
> make sure no one violates a protocol for a large scale open access network
> is sure to fail.
>
> 73 W9KE Tom Doyle
>
>>> On Thu, Nov 5, 2015 at 6:00 PM, Robert Bruninga wrote:
>>>
>>> The #1 question is what Path this device will use. It is an
> abomination
>>> to fly such a tracker on the APRS network with a beacon rate more
>>> often than once a minute, *OR* with a path via more than 1 hop.
>>> If those limits are not implemented in hardware, these devices
>>> could trash the national APRS frequency.
>>>
>>> Half the balloons we see go up to not adhere to these APRS
>>> standards because the operators are clueless to the netwrk
>>> constraints and apparently do nothing to research the proper settings..
>>> Bob, WB4APR
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 10, Issue 337
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