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CX2SA > SATDIG 09.09.19 21:02l 882 Lines 25518 Bytes #999 (0) @ WW
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Sent: 190822/0141Z @:CX2SA.SAL.URY.SOAM #:12447 [Salto] FBB7.00e $:AMSATBB14321
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. DVB-S2X Whitepaper by Newtec. (KC9SGV)
2. Re: OSCAR-1 Schematic (Andy Brian)
3. Re: OSCAR-1 Schematic (Zach Metzinger)
4. ADIF to gridmap program (jeff griffin)
5. Re: DVB-S2X Whitepaper by Newtec. (John Brier)
6. Re: apparent bogus email (Glenn Little WB4UIV)
7. Re: apparent bogus email (Jeff Johns)
8. Upcoming ARISS Contact Schedule as of 2019-08-21 22:00 UTC
(aj9n@???.????
9. Re: ADIF to gridmap program (KI7UNJ Tucker)
10. ARISS CONTACT UPDATE: The Children's Inn at NIH (National
Institutes of Health), Bethesda, MD (n4csitwo@?????????.????
11. Update: Rent GEO bandwidth for US (Michelle Thompson)
----------------------------------------------------------------------
Message: 1
Date: Wed, 21 Aug 2019 15:05:12 -0500
From: KC9SGV <kc9sgv@?????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] DVB-S2X Whitepaper by Newtec.
Message-ID: <FE14EA7B-9E61-4B28-9BB6-3481D6684552@?????.???>
Content-Type: text/plain; charset=us-ascii
Hi All,
It seems like DATV on a future IARU Region 2 GEO Hamsat might be
incorporating the DVB-S2X standard.
This whitepaper by Newtec is an easy read to explain the concepts involved.
https://www.newtec.eu/frontend/files/application_note/newtec-market-trend-4k-d
vb-s2x.pdf
Bernard,
KC9SGV
Sent from my iPad
------------------------------
Message: 2
Date: Wed, 21 Aug 2019 22:37:02 +0200
From: Andy Brian <briaandy@?????.???>
To: Paul Stoetzer <n8hm@????.???>
Cc: AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] OSCAR-1 Schematic
Message-ID:
<CADMEjK_+7AdVcbHSwwra6UiF3JwjA11fLQRoGwFn78G2uQDyVQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
link don't works seems to need to be a member to open schematic ( PDF)...
73
Andy
On Thu, Aug 15, 2019 at 10:11 PM Paul Stoetzer via AMSAT-BB <
amsat-bb@?????.???> wrote:
> The transmitter schematic is available in the February 1962 issue of
> QST (direct link for ARRL members at
> http://p1k.arrl.org/pubs_archive/46290). Unfortunately, the digital
> keying circuit is omitted from the schematic as "the transmitter keyer
> makes use of digital circuits which may not be familiar to many
> amateurs." (at least in 1962...)
>
> 73,
>
> Paul, N8HM
>
> On Thu, Aug 15, 2019 at 4:05 PM Mike Diehl via AMSAT-BB
> <amsat-bb@?????.???> wrote:
> >
> > Does anyone know of or have a copy of the schematic for OSCAR-1? Google
> hasn?t turned up anything useful.
> >
> > 73,
> > Mike Diehl
> > W8LID/VE6LID
> > _______________________________________________
> > Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 3
Date: Wed, 21 Aug 2019 15:40:47 -0500
From: Zach Metzinger <zmetzing@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] OSCAR-1 Schematic
Message-ID: <f3baf3e6-4215-6e13-edc3-9715c3e3f1ae@?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
On Thu, Aug 15, 2019 at 10:11 PM Paul Stoetzer via AMSAT-BB
<amsat-bb@?????.???> wrote:
>
>> The transmitter schematic is available in the February 1962 issue of
>> QST (direct link for ARRL members at
>> http://p1k.arrl.org/pubs_archive/46290).
On 2019-08-21 15:37, Andy Brian via AMSAT-BB wrote:
> link don't works seems to need to be a member to open schematic ( PDF)...
Indeed. As Paul said, you need to be an ARRL member to use that link.
--- Zach
N0ZGO
------------------------------
Message: 4
Date: Wed, 21 Aug 2019 16:50:35 -0400
From: "jeff griffin" <kb2m@????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] ADIF to gridmap program
Message-ID: <008501d55862$15579bc0$4006d340$@???>
Content-Type: text/plain; charset="us-ascii"
I've decided to try and work on my Grids worked from this location. To do
so I'm going to have to deal with the FM birds. I'm trying to keep this as
painless as possible so I'm looking for an ADIF to gridsquare map program.
A program that will input an ADIF file and map out what grids are needed and
what are already worked graphically. A quick google shows there are several
available, what one's are recommended ? Thanks for any useful input.
73 Jeff kb2m
------------------------------
Message: 5
Date: Wed, 21 Aug 2019 16:52:49 -0400
From: John Brier <johnbrier@?????.???>
To: KC9SGV <kc9sgv@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] DVB-S2X Whitepaper by Newtec.
Message-ID:
<CALn0fKPNy=QxNcenv+DS4WOY0P66kSC6x6MxBanTCGMkR2uztQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Not important to DVB-S2X, but in that document the very first sentence
is incorrect:
"Beyond four times (4K) the resolution of High Definition (HD) video,
true Ultra HD (UHD) delivers a more immersive.."
I thought that's what 4K meant too at first, but it actually has to do
with the horizontal resolution being approximately 4,000 pixels.
"4K resolution, also called 4K, refers to a horizontal display
resolution of approximately 4,000 pixels." -
https://en.wikipedia.org/wiki/4K_resolution
4K resolution is actually about 2x the resolution of HD. 3,840?2,160
vs 1,920?1,080
I just emailed the above to Newtec (sales email is what was listed so
who knows if it will help).
73, John Brier KG4AKV
On Wed, Aug 21, 2019 at 4:07 PM KC9SGV via AMSAT-BB <amsat-bb@?????.???>
wrote:
>
> Hi All,
>
> It seems like DATV on a future IARU Region 2 GEO Hamsat might be
incorporating the DVB-S2X standard.
>
> This whitepaper by Newtec is an easy read to explain the concepts involved.
>
>
https://www.newtec.eu/frontend/files/application_note/newtec-market-trend-4k-d
vb-s2x.pdf
>
> Bernard,
> KC9SGV
>
> Sent from my iPad
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Wed, 21 Aug 2019 17:47:57 -0400
From: Glenn Little WB4UIV <glennmaillist@?????????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] apparent bogus email
Message-ID: <a1833750-eefa-2ccf-39ae-79776c5ceca3@?????????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
This is the reason that I quit using the AMSAT remailer.
With spam running from bad to worst, the SA, at the time, refused to do
anything to curtail?? the spam. Reason was to get all traffic to the end
user without screening any.
73
Glenn
WB4UIV
On 8/21/2019 1:26 PM, n4csitwo--- via AMSAT-BB wrote:
> All,
> Please be aware of some apparent bogus email that you may receive to your
amsat.org email address. An email just popped into my inbox from "amsat.org
Admin." saying I have 4 pending messages ...
> At the bottom of the email it has ...
> Copyright ?? 2019 amsat.org, Inc. All rights reserved. We are located at
2233 S. third St., San Jose, CA 95123.
>
> I suggest you avoid opening this if you get one.
>
> Dave, AA4KN
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
--
-----------------------------------------------------------------------
Glenn Little ARRL Technical Specialist QCWA LM 28417
Amateur Callsign: WB4UIV wb4uiv@????.??? AMSAT LM 2178
QTH: Goose Creek, SC USA (EM92xx) USSVI LM NRA LM SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
------------------------------
Message: 7
Date: Wed, 21 Aug 2019 16:52:58 -0500
From: Jeff Johns <jeff30339@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] apparent bogus email
Message-ID: <03433B38-5BA0-40C8-8422-6330DAE7D6A7@?????.???>
Content-Type: text/plain; charset=us-ascii
I never get any spam here and am appreciative of the AMSAT remailer.
Jeff WE4B
> On Aug 21, 2019, at 4:47 PM, Glenn Little WB4UIV via AMSAT-BB
<amsat-bb@?????.???> wrote:
>
> This is the reason that I quit using the AMSAT remailer.
> With spam running from bad to worst, the SA, at the time, refused to do
anything to curtail?? the spam. Reason was to get all traffic to the end
user without screening any.
>
> 73
> Glenn
> WB4UIV
>
>> On 8/21/2019 1:26 PM, n4csitwo--- via AMSAT-BB wrote:
>> All,
>> Please be aware of some apparent bogus email that you may receive to your
amsat.org email address. An email just popped into my inbox from "amsat.org
Admin." saying I have 4 pending messages ...
>> At the bottom of the email it has ...
>> Copyright ?? 2019 amsat.org, Inc. All rights reserved. We are located at
2233 S. third St., San Jose, CA 95123.
>>
>> I suggest you avoid opening this if you get one.
>>
>> Dave, AA4KN
>>
>> ---
>> This email has been checked for viruses by Avast antivirus software.
>> https://www.avast.com/antivirus
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>>
>
> --
> -----------------------------------------------------------------------
> Glenn Little ARRL Technical Specialist QCWA LM 28417
> Amateur Callsign: WB4UIV wb4uiv@????.??? AMSAT LM 2178
> QTH: Goose Creek, SC USA (EM92xx) USSVI LM NRA LM SBE ARRL TAPR
> "It is not the class of license that the Amateur holds but the class
> of the Amateur that holds the license"
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 8
Date: Wed, 21 Aug 2019 22:22:40 +0000 (UTC)
From: aj9n@???.???
To: amsat-bb@?????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2019-08-21
22:00 UTC
Message-ID: <650236331.364551.1566426160901@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Upcoming ARISS Contact Schedule as of 2019-08-21 22:00 UTC
?
Quick list of scheduled contacts and events:
?
The Children?s Inn at NIH (National Institutes of Health), Bethesda, MD
(CASIS#3), telebridge via VK4KHZ
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Drew Morgan KI5AAA
Contact is now TBD (***)
?
?
The ARISS webpage is at http://www.ariss.org/ ???
Note that there are links to other ARISS websites from this site.
?
The main page for Applying to Host a Scheduled Contact may be found at
http://www.ariss.org/apply-to-host-an-ariss-contact.html ???
ARISS Contact Applications (United States)
?
?
For many years I have on purpose not given the actual hyperlinks; I assume
the user would do a copy/paste into their favorite browser.? I am now
thinking that the browsers have all grown up and most should be able to
handle the link.? Please let me know you experience any issues.? So now you
should be able to directly click on the link.? (***)
?
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?2019-08-21 22:00 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
?
?
The successful school list has been updated as of 2019-08-15 16:00 UTC.
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
?
?
?
The ARISS webpage is at http://www.ariss.org/ ???
Note that there are links to other ARISS websites from this site.
?
The main page for Applying to Host a Scheduled Contact may be found at
http://www.ariss.org/apply-to-host-an-ariss-contact.html ???
?
ARISS Contact Applications (United States)
?
The ARISS webpage is at http://www.ariss.org/ ???
Note that there are links to other ARISS websites from this site.
?
******************************************************************************
******************************************************************************
****************
ARISS Contact Applications (Europe, Africa and the Middle East)
?
Schools and Youth organizations in Europe, Africa and the Middle East
interested in setting up an ARISS radio contact with an astronaut on board
the International Space Station are invited to submit an application from
September to October and from February to April.
Please refer to details and the application form at
www.ariss-eu.org/school-contacts.? Applications should be addressed by email
to:? school.selection.manager@????????.???
?
ARISS Contact Applications (Canada, Central and South America, Asia and
Australia and Russia)
?
Organizations outside the United States can apply for an ARISS contact by
filling out an application.? Please direct questions to the appropriate
regional representative listed below. If your country is not specifically
listed, send your questions to the nearest ARISS Region listed. If you are
unsure which address to use, please send your question to the ARISS-Canada
representative; they will forward your question to the appropriate
coordinator.
?
For the application, go to:? http://www.ariss.org/ariss-application.html.
ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to:
ve3tbd@?????.???
ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to:
ariss@???????.???? Japan Amateur Radio League (JARL) http://www.jarl.org/
ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/
?
?
******************************************************************************
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@?????.??? or aj9n@???.???.
?
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??
Please note that the HamTV system has been brought back to earth for
troubleshooting.? Please monitor ARISS-EU or ARISS-ON for the very latest
news on the troubleshooting efforts.?
?
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@?????????.???
?
?
The HamTV webpage:? https://www.amsat-on.be/hamtv-summary/
?
?
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
?
Satoshi 7M3TJZ with 136
Francesco IK?WGF with 132
Gaston ON4WF with 123
Sergey RV3DR with 120
?
****************************************************************************
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.
?
?
?
Total number of ARISS ISS to earth school events is 1327.
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 1270.
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:
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
?
****************************************************************************
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.r
tf
Check out the Zoho reports of the ARISS contacts
?
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
?
Exp. 59 on orbit
Christina Koch
Aleksey Ovchinin
Nick Hague KG5TMV
?
Exp. 60 on orbit
Luca Parmitano KF5KDP
Alexander Skvortsov
Drew Morgan KI5AAA
?
****************************************************************************
73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors
?
------------------------------
Message: 9
Date: Wed, 21 Aug 2019 15:47:52 -0700
From: KI7UNJ Tucker <ki7unj@?????.???>
To: jeff griffin <kb2m@????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ADIF to gridmap program
Message-ID:
<CAPFr_UkJuBxfcyr5k8+fqjMdbm+dDEcXLvqCC+qFKZbPc_jk-A@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
The one I have seen multiple people use is GCMWin...
The link is a guide on how to use it.
http://kd8ksn.blogspot.com/p/gcmwin-instructions.html
You can also use a Excel document if you are mostly worried about keeping
track of 488
https://ke4al.wordpress.com/2019/07/31/gridmaster-map-v2-3/
This just needs a copy and paste from your VUCC Awards page to display
worked grids.
Example of output = https://twitter.com/KI7UNJ/status/1160766752222879745
On Wed, Aug 21, 2019 at 1:51 PM jeff griffin via AMSAT-BB <
amsat-bb@?????.???> wrote:
> I've decided to try and work on my Grids worked from this location. To do
> so I'm going to have to deal with the FM birds. I'm trying to keep this as
> painless as possible so I'm looking for an ADIF to gridsquare map program.
> A program that will input an ADIF file and map out what grids are needed
> and
> what are already worked graphically. A quick google shows there are several
> available, what one's are recommended ? Thanks for any useful input.
>
>
>
> 73 Jeff kb2m
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
--
Casey Tucker KI7UNJ
AMSAT Ambassador
https://twitter.com/KI7UNJ
https://www.qrz.com/db/KI7UNJ
http://bit.do/ki7unj
<https://www.google.com/url?q=http://bit.do/ki7unj&sa=D&source=hangouts&ust=15
21073499558000&usg=AFQjCNFcQLn6C9nmmvpQiBbD6XvN-QjKug>
------------------------------
Message: 10
Date: Wed, 21 Aug 2019 19:27:12 -0400
From: <n4csitwo@?????????.???>
To: <amsat-bb@?????.???>, <ariss-press@?????.???>
Subject: [amsat-bb] ARISS CONTACT UPDATE: The Children's Inn at NIH
(National Institutes of Health), Bethesda, MD
Message-ID: <012522CB485E439488616C7E12BEC68B@???>
Content-Type: text/plain; charset="iso-8859-1"
The ARISS contact with The Children's Inn at NIH (National Institutes of
Health), Bethesda, MD that was scheduled to take place tomorrow, Aug. 22 at
17:16 UTC has been postponed due to last minute scheduling issues. It is in
the process of being rescheduled for a future week. We will post a new date
for the contact once it becomes available.
Dave, AA4KN
ARISS PR
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
------------------------------
Message: 11
Date: Wed, 21 Aug 2019 18:34:24 -0700
From: Michelle Thompson <mountain.michelle@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID:
<CACvjz2WAnhwQj9JoLoD0-WZV2aDp-fL+UkJ_w87c56h5zvNang@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
An arrangement on Echostar9 for 1MHz of bandwidth for up to 4 years of
USA+Mexico+Canada coverage is on offer for $2000 a month.
I'm putting together a grant proposal for ARRL, FEMA, and others to pay for
at least year of access. I've gotten some positive feedback already. I
think we can make this happen with some fundraising effort. I'm willing to
provide the human resources and whatever incidental financing needs to
happen to secure a grant for rental.
The main purpose of this type of system would be to enable field deployment
of "legacy mode" aggregators, like the Phase 4 Ground ARAP (Amateur Radio
Access Point). This is where traffic on any ham band, using FM or analog
gear, is digitized by a local "collecting" repeater, and is then sent to a
satellite from that repeater. FEMA and ARRL have expressed a lot of
interest and support for this in the past. Phase 4 Ground needs an ARAP in
order to support legacy radios.
You don't have to personally have a microwave digital uplink. The
aggregator equipment does that part for you.
This is most useful for public service and emergency communications. A
communications emergency is declared, someone (FEMA, Red Cross, motivated
ham volunteer) drops in the aggregator, and all ham traffic it hears is
sent to the satellite and then transmitted to the entire footprint.
The downlink is 12-14GHz. This is not 10GHz, but is receivable by
individuals using very inexpensive gear. Traffic can be repeated over the
internet.
What does this get us?
An opportunity to do all the R&D for the aggregator and get some experience
with uplinks.
What do we not have?
A true ham band downlink. You can still receive the downlink yourself, or
you can get it over the internet from an earth station distributor.
That's where we're at with *this* proposal.
I think it's worth it to provide a US-based way to design, deploy, test,
and use real world aggregator equipment. We learn a lot about GEO comms and
figure out a lot of the ins and outs.
Comment and critique welcome and encouraged.
More soon!
-Michelle W5NYV
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@?????.???.
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!
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------------------------------
End of AMSAT-BB Digest, Vol 14, Issue 321
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