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CX2SA > SATDIG 01.09.17 01:15l 923 Lines 30548 Bytes #999 (0) @ WW
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Sent: 170831/2313Z @:CX2SA.SAL.URY.SOAM #:18178 [Salto] FBB7.00e $:AMSATBB12217
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: AO-85: Tone or no Tone for SSTV (Paul Stoetzer)
2. Re: AO-85: Tone or no Tone for SSTV (Andrew Rich)
3. Re: AO-85: Tone or no Tone for SSTV (Jerry Buxton)
4. Upcoming ARISS Contact Schedule as of 2017-08-30 16:00 UTC
(AJ9N@xxx.xxxx
5. Upcoming ARISS contact with Student Space Technology
Association, Knoxville, TN USA (n4csitwo@xxxxxxxxx.xxxx
6. SSTV on AO-85 (Roland Zurmely)
7. Re: SSTV on AO-85 (Greg)
8. Upcoming ARISS contact with W. Virginia University, Lane
Dept.of Computer Science & EE, Morgantown, WV (n4csitwo@xxxxxxxxx.xxxx
9. Re: Cleaning up the Global APRS Satellite ground station
network (update a) (Robert Bruninga)
10. Re: Cleaning up the Global APRS Satellite ground station
network (update a) (Roy Dean)
11. Re: Cleaning up the Global APRS Satellite ground station
network (update a) (Robert Bruninga)
----------------------------------------------------------------------
Message: 1
Date: Wed, 30 Aug 2017 09:16:30 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Roy Dean <royldean@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-85: Tone or no Tone for SSTV
Message-ID:
<CABzOSOqAnyRwSJkYmpqBUDRVmpS221DF6fRnLPLKYPspTryEng@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Roy,
AMSAT recommends always sending the tone on AO-85. If it doesn't hear the
tone for two minutes, the repeater will turn off.
The 67 Hz tone is well below the SSTV signal's tones and will not interfere
with signal transmission. The lowest tone used in a Robot36 transmission is
1100 Hz and the highest tone is 2300 Hz (with the image transmission
occurring primarly between 1500 and 2300 Hz).
73,
Paul, N8HM
On Wed, Aug 30, 2017 at 9:11 AM, Roy Dean <royldean@xxxxx.xxx> wrote:
> two questions:
>
> According to Amsat website, 67Hz tone is required for a couple of seconds
> to activate repeater.
>
> Once the repeater is activated, does it still require the tone every couple
> of minutes to stay on, or does it only start the timer after normal
> ("un-toned") activity stops?
>
> Will constantly sending the tone during SSTV Tx mess with the SSTV Rx?
> I'm planning on eventually trying my own image, and want to be sure I don't
> waste 36 seconds of valuable airtime.
>
> -Roy
> K3RLD
> _______________________________________________
> 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: 2
Date: Wed, 30 Aug 2017 23:18:16 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: Roy Dean <royldean@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] AO-85: Tone or no Tone for SSTV
Message-ID: <CD92AFDB-E426-481D-A7A2-B43049EE2E5A@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Roy
What's the audio bandwidth of you sstv ?
Andrew
Sent from my iPhone
> On 30 Aug 2017, at 11:11 pm, Roy Dean <royldean@xxxxx.xxx> wrote:
>
> two questions:
>
> According to Amsat website, 67Hz tone is required for a couple of seconds
> to activate repeater.
>
> Once the repeater is activated, does it still require the tone every couple
> of minutes to stay on, or does it only start the timer after normal
> ("un-toned") activity stops?
>
> Will constantly sending the tone during SSTV Tx mess with the SSTV Rx?
> I'm planning on eventually trying my own image, and want to be sure I don't
> waste 36 seconds of valuable airtime.
>
> -Roy
> K3RLD
> _______________________________________________
> 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: 3
Date: Wed, 30 Aug 2017 10:34:10 -0500
From: Jerry Buxton <n0jy@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] AO-85: Tone or no Tone for SSTV
Message-ID: <46199caa-1318-42ad-b1aa-b1d215ec3b49@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
On 8/30/2017 08:16, Paul Stoetzer wrote:
> AMSAT recommends always sending the tone on AO-85. If it doesn't hear the
> tone for two minutes, the repeater will turn off.
Correction, it's one minute.
Jerry Buxton, N?JY
------------------------------
Message: 4
Date: Wed, 30 Aug 2017 12:06:33 -0400
From: AJ9N@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2017-08-30
16:00 UTC
Message-ID: <10bace.54f5a02b.46d83c89@xxx.xxx>
Content-Type: text/plain; charset="ISO-8859-1"
Upcoming ARISS Contact Schedule as of 2017-08-30 16:00 UTC
Quick list of scheduled contacts and events:
Student Space Technology Association, Knoxville, TN, direct via AA4UT
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Paolo Nespoli IZ?JPA
Contact is a go for: Thu 2017-08-31 17:42:14 UTC 60 deg
West Virginia University, Lane Dept. of Computer Science & Electrical
Engineering, Morgantown, WV, direct via W8CUL
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Paolo Nespoli IZ?JPA
Contact is a go for: Mon 2017-09-04 15:50:05 UTC 79 deg (***)
Meadows Elementary School, Manhattan Beach, CA, direct via KM6BWB
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Paolo Nespoli IZ?JPA
Contact is a go for: Fri 2017-09-08 17:05:30 UTC 67 deg (***)
****************************************************************************
**
ARISS is always glad to receive listener reports for the above contacts.
ARISS thanks everyone in advance for their assistance. Feel free to send
your reports to aj9n@xxxxx.xxx or aj9n@xxx.xxx.
Listen for the ISS on the downlink of 145.8? MHz.
****************************************************************************
***
All ARISS contacts are made via the Kenwood radio unless otherwise noted.
****************************************************************************
***
Several of you have sent me emails asking about the RAC ARISS website and
not being able to get in. That has now been changed to
http://www.ariss.org/
Note that there are links to other ARISS websites from this site.
****************************************************************************
Looking for something new to do? How about receiving DATV from the ISS?
If interested, then please go to the ARISS-EU website for complete
details. Look for the buttons indicating Ham Video.
http://www.ariss-eu.org/
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight. Contact Kerry at kbanke@xxxxxxxxx.xxx
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
Satoshi 7M3TJZ with 124
Gaston ON4WF with 123
Francesco IK?WGF with 119
Sergey RV3DR with 100
****************************************************************************
The webpages listed below were all reviewed for accuracy. Out of date
webpages were removed and new ones have been added. If there are
additional
ARISS websites I need to know about, please let me know.
Note, all times are approximate. It is recommended that you do your own
orbital prediction or start listening about 10 minutes before the listed
time.
All dates and times listed follow International Standard ISO 8601 date and
time format YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of 2017-08-30 16:00 UTC.
(***)
Here you will find a listing of all scheduled school contacts, and
questions, other ISS related websites, IRLP and Echolink websites, and
instructions for any contact that may be streamed live.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
http://www.amsat.org/amsat/ariss/news/arissnews.txt
Total number of ARISS ISS to earth school events is 1154.
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 1113.
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 47.
A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Please feel free to contact me if more detailed statistics are needed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The following US states and entities have never had an ARISS contact:
Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern
Marianas Islands, and the Virgin Islands.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
QSL information may be found at:
http://www.ariss.org/qsl-cards.html
ISS callsigns: DP?ISS, IR?ISS, NA1SS, OR4ISS, RS?ISS
****************************************************************************
The successful school list has been updated as of 2017-08-16 05:30 UTC.
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
Frequency chart for packet, voice, and crossband repeater modes showing
Doppler correction as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf
Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf
Check out the Zoho reports of the ARISS contacts
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
Exp. 50 on orbit
Peggy Whitson
Exp. 51 on orbit
Jack Fischer K2FSH
Fyodor Yurchikhin RN3FI
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 5
Date: Wed, 30 Aug 2017 17:02:10 -0400
From: <n4csitwo@xxxxxxxxx.xxx>
To: <ariss-press@xxxxx.xxx>, "amsat-edu" <amsat-edu@xxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Upcoming ARISS contact with Student Space
Technology Association, Knoxville, TN USA
Message-ID: <F3272CD11CC341EB9B28A133BF0BF740@xxx>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at Student Space Technology Association, Knoxville, TN on Aug
31. The event is scheduled to begin at approximately 17:42 UTC. The duration
of the contact is approximately 9 minutes and 30 seconds. The contact will
be direct between NA1SS and AA4UT. The contact should be audible over the
state of Tennessee, USA and adjacent areas. Interested parties are invited
to listen in on the 145.80 MHz downlink. The contact is expected to be
conducted in English.
The University of Tennessee Knoxville is an amazing school located in the
hills of Tennessee. It is the largest campus in the state, hosting more than
30,000 students. This school is known for its engineering and science
heritage, having close ties with research facilities such as Oak Ridge
National Lab. Also, included in our alumni are 9 astronauts including the
recent ISS inhabitant Scott Kelly. The Student Space Technology Association
is looking forward to our contact with the International Space Station from
our contact site at Hardin Valley Academy here in Knoxville. Our school is
filled with thousands of eager students seeking to pursue careers in the
space industry. With our vision of becoming a top-tier research school, our
students are set to become the next leaders in STEM industries. We are
excited to encourage the students at Hardin Valley Academy to pursue STEM
areas at the university level.
Participants will ask as many of the following questions as time allows:
1. Is it difficult to remain up to date on recent events on Earth?
2. Have there been any recent advancements made in ISS biological research
that could be applied on Earth?
3. How do you feel about riding on a commercial spacecraft like SpaceX's
Dragon Capsule as opposed to a government agency's craft?
4. When doing research, or any other investigation, what kind of cleaning
processes do you use on your equipment, or even yourself, to avoid
contamination of material and equipment?
5. Has there been any research that has been done with the possible
application of zero g therapy to joint diseases such as arthritis.
6. Having used current NASA spacesuits, are you excited about the new space
clothing developments being made like the Skinsuit?
7. Why does the vegetable growth experiment chamber have a pink-looking light
rather than a white light?
8. Are there any items/tools that are "lost" inside ISS?
9. How often do software updates occur on ISS? (***)
10. Are there any experiments related to additive manufacturing going on at
the moment?
11. Using the Haptics-2, how close do you think the technology is to
application on Mars? What kind of applications could you see the
technology being used for? Anything memorable from the experiment?
12. How often, and how, do you launch satellites from the ISS?
13. Are there plans to test means of producing artificial gravity in the near
future?
14. Can you talk about the inflatable module that was delivered to the ISS in
April of 2016?
15. Would there be any foreseeable benefits in performing complex medical
operations (such as open heart surgery) in a zero g environment.
16. How did the ROSA deployment go?
17. What was the solar eclipse viewing experience from space?
18. What 'treat' from the Dragon cargo - ice cream or fresh avocado - was the
most popular?
19. What has been your most interesting experiment?
20. What type of container do the rodents and fruit flies travel back to
earth in?
21. What major differences have you found in the ISS since your last mission?
22. Do you get to eat any plants that are growing on the ISS?
23. What are some of the things that are you doing that are results of
research done on the ISS?
24. What are some of the changes to space clothing you use like Skinsuit?
25. How difficult is it to learn to sleep in zero gravity?
PLEASE CHECK THE FOLLOWING FOR MORE INFORMATION ON ARISS UPDATES:
Visit ARISS on Facebook. We can be found at Amateur Radio on the
International Space Station (ARISS).
To receive our Twitter updates, follow @xxxxxxxxxxxx
Next planned event(s):
1. West Virginia University, Lane Dept. of Computer Science &
Electrical Engineering, Morgantown, WV, direct via W8CUL
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Paolo Nespoli IZ?JPA
Contact is a go for: Mon 2017-09-04 15:50 UTC
2. Meadows Elementary School, Manhattan Beach, CA, direct via KM6BWB
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Paolo Nespoli IZ?JPA
Contact is a go for: Fri 2017-09-08 17:05 UTC
About ARISS:
Amateur Radio on the International Space Station (ARISS) is a cooperative
venture of international amateur radio societies and the space agencies that
support the International Space Station (ISS). In the United States,
sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American
Radio Relay League (ARRL), the Center for the Advancement of Science in
Space (CASIS) and National Aeronautics and Space Administration (NASA).
The primary goal of ARISS is to promote exploration of science, technology,
engineering, and mathematics (STEM) topics by organizing scheduled contacts
via amateur radio between crew members aboard the ISS and students in
classrooms or informal education venues. With the help of experienced
amateur radio volunteers, ISS crews speak directly with large audiences in a
variety of public forums. Before and during these radio contacts, students,
teachers, parents, and communities learn about space, space technologies,
and amateur radio. For more informa
tion, see www.ariss.org, www.amsat.org, and www.arrl.org.
Thank you & 73,
David - AA4KN
---
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------------------------------
Message: 6
Date: Wed, 30 Aug 2017 22:31:24 +0000 (UTC)
From: Roland Zurmely <py4zbz@xxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] SSTV on AO-85
Message-ID: <366300317.6672.1504132284271@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
2 SSTV images via AO-85 = FOX-1A
<http://www.qsl.net/py4zbz/fox.htm#h>
73 de Roland PY4ZBZ
------------------------------
Message: 7
Date: Wed, 30 Aug 2017 21:13:02 -0400
From: Greg <almetco@xxxxxxx.xxx>
To: Roland Zurmely <py4zbz@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] SSTV on AO-85
Message-ID: <2CCBA518-A668-4A9D-B692-1D3174B847F9@xxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Nice.
Greg N3MVF
On Aug 30, 2017, at 6:31 PM, Roland Zurmely via AMSAT-BB
<amsat-bb@xxxxx.xxx> wrote:
2 SSTV images via AO-85 = FOX-1A
<http://www.qsl.net/py4zbz/fox.htm#h>
73 de Roland PY4ZBZ
_______________________________________________
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: 8
Date: Thu, 31 Aug 2017 00:46:18 -0400
From: <n4csitwo@xxxxxxxxx.xxx>
To: <ariss-press@xxxxx.xxx>, "amsat-edu" <amsat-edu@xxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Upcoming ARISS contact with W. Virginia
University, Lane Dept.of Computer Science & EE, Morgantown, WV
Message-ID: <AF683449FF2548BBA101B123612344EE@xxx>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at West Virginia University, Lane Dept.of Computer Science &
Electrical Engineering, Morgantown, WV on 04 Sept. The event is scheduled to
begin at approximately 15:50 UTC. The duration of the contact is
approximately 9 minutes and 30 seconds. The contact will be direct between
NA1SS and W8CUL. The contact should be audible over the state of West
Virginia, USA and adjacent areas. Interested parties are invited to listen
in on the 145.80 MHz downlink. The contact is expected to be conducted in
English.
The Amateur Radio Club at WVU has existed since 1912, making it one of the
oldest student organization at WVU. They provide students a testbed to
conduct various experiments such as satellite and digital communications,
radio astronomy and drone development. They are housed within the Lane
Department of Computer Science and Electrical Engineering, which provides
educational programs at the bachelor's, master's, and doctoral levels in
computer science, electrical engineering, computer engineering, and
biometric systems. WVU is a land grant university and is the largest
educational institution in the state. Located in Morgantown, WV, with branch
campuses spread throughout the state, WVU is extremely involved in all state
affairs. As of 2015, slightly under 30,000 students were enrolled in
graduate and undergraduate programs, a population comprised nearly equally
(49%/51%) of in-state and out-of-state students, respectively. Present at
our contact will be students from elementary and mi
ddle schools from throughout the surrounding area.
Participants will ask as many of the following questions as time allows:
1. How do you do laundry in space?
2. What is the most challenging part of getting to the ISS?
3. Would you ever go on a mission to Mars?
4. Did you get to see the eclipse from space?
5. What feeling on Earth closely relates to what it feels like to be in
space?
6. Has the ISS ever been struck by space debris before?
7. What would happen if someone got sick on the ISS?
8. How long did you have to train to enter zero gravity?
9. How do you stay warm on the ISS?
10. What do you do in your free time?
11. Is using liquids in science experiments on the ISS hard?
12. What was your first day on the ISS like?
13. How bright is the sun in space?
14. In your job, what is the most dangerous thing you have to be prepared
for, and has that thing ever actually happened?
15. Can you sleep at night because there is no sunrise or sunset?
16. Which do you like better, space or earth?
17. What is the first meal you'll eat when you get back to earth?
18. Are there any space-specific games that you play on the ISS, like
football or video games?
19. Is there space pizza?
20. Do you have a nickname for your rocket?
PLEASE CHECK THE FOLLOWING FOR MORE INFORMATION ON ARISS UPDATES:
Visit ARISS on Facebook. We can be found at Amateur Radio on the
International Space Station (ARISS).
To receive our Twitter updates, follow @xxxxxxxxxxxx
Next planned event(s):
1. Meadows Elementary School, Manhattan Beach, CA, direct via KM6BWB
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Paolo Nespoli IZ?JPA
Contact is a go for: Fri 2017-09-08 17:05 UTC
About ARISS:
Amateur Radio on the International Space Station (ARISS) is a cooperative
venture of international amateur radio societies and the space agencies that
support the International Space Station (ISS). In the United States,
sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American
Radio Relay League (ARRL), the Center for the Advancement of Science in
Space (CASIS) and National Aeronautics and Space Administration (NASA).
The primary goal of ARISS is to promote exploration of science, technology,
engineering, and mathematics (STEM) topics by organizing scheduled contacts
via amateur radio between crew members aboard the ISS and students in
classrooms or informal education venues. With the help of experienced
amateur radio volunteers, ISS crews speak directly with large audiences in a
variety of public forums. Before and during these radio contacts, students,
teachers, parents, and communities learn about space, space technologies,
and amateur radio. For more informa
tion, see www.ariss.org, www.amsat.org, and www.arrl.org.
Thank you & 73,
David - AA4KN
---
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------------------------------
Message: 9
Date: Thu, 31 Aug 2017 15:58:36 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat bb <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Cleaning up the Global APRS Satellite ground
station network (update a)
Message-ID: <46aed2e8553c2a73ed650481d2774cff@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
[Updated in response to feedback from the initial post on 7 Aug]
We need to better organize our APRS satellite ground stations network. Over
an 18 month review, we found about 330 unique IGATES feeding the APRS-IS and
captured by the two APRS live satellite web pages on FINDU:
http://pcsat.findu.com and http://ariss.net
A hot topic at SmallSat conferences is always the need for remote ground
station networks. But for two decades, APRS has always had a global ground
station network with hundreds of SATGATES on the APRS downlinks of 145.825.
Here are some problems that I think we can solve:
1) The black-hole problem of locals direct to Satgates not showing up on the
downlink pages
2) No means for premium stations to self identity
3) No means to easily compare satgate capabilities
4) No means to easily indicate satellite traffic captured on other
frequencies
5) No easy means to visualize the network in real time
6) The problem of distinguishing RX only SATGATES
7) Future potential for remote transmission via a remote SATGATE for
satellite controllers
BlackHole Fix: Steve Dimse, K4HG, the author of FINDU proposes: Proper
SATGATEs clients should simply delay any directly heard packet for 15
seconds when operating in satgate mode. If a local station successfully
digipeats via the satellite and is captured either through this satgate or
through another satgate, then the digipeated packet will make it to
ariss.net before the directly heard packet. Putting this into all SATGATE
software clients would solve the problem (in the area of that satgate and in
the area of that user).
There are far too many different APRS IGATE clients to make this work across
the board.
But when combined with our goal to more formally define and identify the
APRS-Satellite Ground station network, it does become a viable approach when
we use a unique symbol just for these new SATGATES. As previously proposed,
we define a new SATGATE symbol, \] that is currently unassigned for SATGATE
stations that are permanent parts of this network. Then, when they
implement the 15 second delay on direct-heard packets to solve the
black-hole problem, they can further segregate their major capabilities
using Overlay characters.
Phase 1 begins with identifying all permanent SATGATES intending to
participate with the special \] symbol.
Phase 2 adds blackhole fix to clients which then self-identify their class
overlays on that symbol.
\] For immediate use by permanent satgates intending to self-identify as
part of this network (but w/o the BH fix)
A] for AMSAT Oscar class tracking station (2-way, 50W typical radio)
L] for Lower gain class stations (think, Arrow antenna, 3 elements on VHF)
O] for Omni antenna coverage (no tracking)
H] for HFSAT (that will be our next one in a few years)
U] for UHF downlinks ( channel TBD)
S] for Schools and University class A stations
R] for future class A remote access satgates (for satellite operators only)
V] for Class A stations scanning and tracking Various other satellite
downlinks APRS traffic
T] for omni stations that similary Tune other satellite downlinks APRS
traffic
P] for Portable stations currently operating in non permanent locations
FINDU shows no current users of this symbol. But once SATGATE stations
begin to implement it you can see them using the FINDU filter:
http://www.findu.com/cgi-bin/symbol.cgi?icon=\]&limit=200
So you can use \] now, but do not use any of the overlays until the
blackhole fix is implemented.
Maybe later the FINDU search can include a wild card for the overlay so we
can search for *] symbols.
Bob
------------------------------
Message: 10
Date: Thu, 31 Aug 2017 17:13:30 -0400
From: Roy Dean <royldean@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Cleaning up the Global APRS Satellite ground
station network (update a)
Message-ID:
<CADGPg2s0oFdWA1Jqk1RYRC4w-FdTf-oG5jfUFxzg6xv3TuBqGw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Bob -
I have a cheesy omni running direwolf that had been running a 5 second
delay. I changed it to the new symbol (from the black diamond with "R"
overlay), and also changed it to the "O" overlay as the "SATGATE" delay has
been changed to 15s. Do I understand you correctly that I should leave
the overlay on because the 15s delay is implemented?
Or by "blackhole fix", do you mean an IS system wide fix?
--Roy
K3RLD
So you can use \] now, but do not use any of the overlays until the
> blackhole fix is implemented.
> Maybe later the FINDU search can include a wild card for the overlay so we
> can search for *] symbols.
>
> Bob
>
>
------------------------------
Message: 11
Date: Thu, 31 Aug 2017 19:07:31 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: Roy Dean <royldean@xxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Cleaning up the Global APRS Satellite ground
station network (update a)
Message-ID: <8bfff2e4827de0fbcd711945fc8cdea2@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Once your satgate has the blackhole fix (15s delay) then it can use the
now overlay symbol.
Bob
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Roy Dean
Sent: Thursday, August 31, 2017 5:14 PM
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Cleaning up the Global APRS Satellite ground
station network (update a)
Bob -
I have a cheesy omni running direwolf that had been running a 5 second
delay. I changed it to the new symbol (from the black diamond with "R"
overlay), and also changed it to the "O" overlay as the "SATGATE" delay
has
been changed to 15s. Do I understand you correctly that I should leave
the overlay on because the 15s delay is implemented?
Or by "blackhole fix", do you mean an IS system wide fix?
--Roy
K3RLD
So you can use \] now, but do not use any of the overlays until the
> blackhole fix is implemented.
> Maybe later the FINDU search can include a wild card for the overlay
> so we can search for *] symbols.
>
> Bob
>
>
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Subject: Digest Footer
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Sent via amsat-bb@xxxxx.xxx.
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------------------------------
End of AMSAT-BB Digest, Vol 12, Issue 217
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