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CX2SA > SATDIG 11.10.20 03:18l 1274 Lines 49788 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: To Tweet or Not to Tweet (Zach Metzinger)
2. Re: To Tweet or Not to Tweet - APRS (Robert Bruninga)
3. Re: To Tweet or Not to Tweet - APRS (Zach Metzinger)
4. To Tweet or Not to Tweet - APRS (Stephen DeVience)
5. Re: ORI receives half million dollar grant, and, it's only
the first. (Robert McGwier)
6. Re-purpose Cable Modems, headed to dumpsters ? (Gregory Beat)
7. Re: ORI receives half million dollar grant, and, it's only
the first. (Paul Stoetzer)
8. Re: Re-purpose Cable Modems, headed to dumpsters ? (Mac A. Cody)
9. Re: PSAT is ON circa 9:10 AM PST (Dual hop testing?)
(Robert Bruninga)
10. ANS-285 AMSAT News Service Weekly Bulletin - October 11, 2020
(Frank Karnauskas)
----------------------------------------------------------------------
Message: 1
Date: Fri, 9 Oct 2020 11:41:53 -0500
From: Zach Metzinger <zmetzing@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] To Tweet or Not to Tweet
Message-ID: <06d14410-9ec7-a1ae-c910-a49bcdefc605@?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
The ideal solution would be to have a worldwide amateur data network,
based only on amateur-radio resources (microwave, HF, etc.), which would
be independent of the Internet.
We have the IPv4 space (44.x.x.x net) and the open-source tools
(Mastodon) to replace the data-mining, you-are-the-product commercial
solutions.
This network would provide the driving need to keep our spectrum, which
is rapidly being eroded by the FCC for 5G.
Obviously, this network would be the backbone for amsat-bb and other
amateur mailing lists/resources. This source material could be relayed
to the Internet, for those without direct RF access to the 44.x net.
So many ideas, so little time..
--- Zach
N0ZGO
------------------------------
Message: 2
Date: Fri, 9 Oct 2020 13:40:58 -0400
From: Robert Bruninga <bruninga@????.???>
To: amsat bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] To Tweet or Not to Tweet - APRS
Message-ID:
<CALdCfNJ934-nMHRmiZBz37AKk0nU2d=7cck=B0O7Q_rgU2pHQg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
> The ideal solution would be to have a worldwide amateur data network,
> based only on amateur-radio resources (microwave, HF, etc.), which
> would be independent of the Internet.
There is one. called APRS. And in the early days, my original APRSdos
could send out a local beacon every 10 minutes showing the satellite names
and AOS time for upcoming satellites. Then when the satellites were in
view, it wouild send out Satelltie OBJECTs that the APRS radios wouid then
use to show the range and bearing to the satellite once a minute as well as
the words LOW or HIGH to be spoken by Knewoods that had the voice chip in
them.
See:
http://aprs.org/satinfo.html
This is exactly what APRS was designed to do. To be an info resource for
everyone everywhere to see what was happening in their area.
But unless someone is posting the info or running such an ap in the local
area, then there is nothing to see.
Bob, WB4APR
On Fri, Oct 9, 2020 at 1:11 PM Zach Metzinger via AMSAT-BB <
amsat-bb@?????.???> wrote:
>
> The ideal solution would be to have a worldwide amateur data network,
> based only on amateur-radio resources (microwave, HF, etc.), which would
> be independent of the Internet.
>
> We have the IPv4 space (44.x.x.x net) and the open-source tools
> (Mastodon) to replace the data-mining, you-are-the-product commercial
> solutions.
>
> This network would provide the driving need to keep our spectrum, which
> is rapidly being eroded by the FCC for 5G.
>
> Obviously, this network would be the backbone for amsat-bb and other
> amateur mailing lists/resources. This source material could be relayed
> to the Internet, for those without direct RF access to the 44.x net.
>
> So many ideas, so little time..
>
> --- Zach
> N0ZGO
>
> _______________________________________________
> 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: Fri, 9 Oct 2020 13:01:25 -0500
From: Zach Metzinger <zmetzing@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] To Tweet or Not to Tweet - APRS
Message-ID: <b96b1331-b1b7-a38f-3716-c248d0148050@?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
On 10/09/20 12:40, Robert Bruninga via AMSAT-BB wrote:
> There is one. called APRS. And in the early days, my original APRSdos
> could send out a local beacon every 10 minutes showing the satellite names
Hello Bob,
AX.25 is an obsolete, circuit-switched way to route packets.
At the physical layer, lack of FEC, AFSK Bell 202 speeds and
ALOHA-scheduling leads to massively inefficient utilization of the spectrum.
I'm talking about a cellular-network like organization with downlinks
and scheduled uplinks. Dedicated terminals using COTS modem chips, at
both sub-1GHz and 2.4GHz, would lower the barrier to entry and not tie
up an analog radio.
I estimate a small data terminal would cost in the neighborhood of $50.
This small terminal would be the any-hams way to get on the 44.x network
via RF.
There are many disparate commercial implementations of something like
this, but nothing cohesive has come of it. We still have a ton of
amateur traffic relying on Internet links.
--- Zach
N0ZGO
------------------------------
Message: 4
Date: Fri, 9 Oct 2020 15:54:33 -0400
From: Stephen DeVience <sjdevience@?????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] To Tweet or Not to Tweet - APRS
Message-ID:
<CAMPfQQBz8E6vMGqXqZDpjBqfAJKiMkk+jr94w+2AcUgE+MdhuQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
There have been some projects to make amateur internet networks on our 2.4
GHz and 5 GHz allocations, for example http://www.broadband-hamnet.org/
However, no matter whether it's APRS or actual internet protocols, it will
be dependent on the real internet unless amateurs make an independent
backbone to support the long-distance traffic. This could be a good way to
use our microwave bands. There are a lot of repeater systems linked over
large regions via microwave, so I'm sure it could be done to support
internet traffic too, although the bandwidth might be somewhat limited. A
geostationary satellite could work too. The problem is getting enough
people interested and finding the right hardware.
-Stephen
N8URE
------------------------------
Message: 5
Date: Sat, 10 Oct 2020 05:49:34 -0500
From: Robert McGwier <rwmcgwier@?????.???>
To: Michael Tondee <mat_62@???????.???>
Cc: amsat bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ORI receives half million dollar grant, and,
it's only the first.
Message-ID:
<CA+K5gzfSH4vyZjaC1Y7yhQhwhpRD1Vb_cpjNoUjELzu4shk9Wg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
AMSAT needs to have presentation to the ARDC public meeting happening this
morning. Over one hundred others representing various organizations have
signed up. The board of ARDC and the Grant election committee will be
there to make a presentation and to answer questions.
The processes, laws to follow, structures needed have taken two years to
put into place and it has all been retarded by COVID-19 and 2020 madness.
ARRL Foundation, YASME, FAR, TAPR, ARISS, ORI etc have all received
"existence changing " grants for activities they have undertaken.
Scholarships done by some of these organizations have doubled. ARISS and
TAPR have had projects funded that didn't require begging cheap hams for
funding.
Listen to the presentations and ask questions.
If AMSAT isn't signed up, ask why. I will be a moderator of the Q and A.
Bob
N4HY
ARDC Grant Committee
On Fri, Sep 11, 2020, 10:40 AM Michael Tondee via AMSAT-BB <
amsat-bb@?????.???> wrote:
> Wow! Sounds like you guys have done and are doing an awful lot for the
> hobby. My thanks to you. It appears there are resources out there if
> AMSAT is willing to do what's necessary to have access to them. I guess
> the question is what's that involve? Is it simply just going open source
> or is there more to it than that? Are there other stumbling blocks that
> they wouldn't be comfortable with for some reason?
>
> 73,
>
> Michael, W4HIJ
>
>
> >
> > ----------------------------------------------------------------------
> >
> >
> >
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Thu, 10 Sep 2020 22:41:39 -0700
> > From: Phil Karn <karn@????.???>
> > To: amsat-bb@?????.???
> > Subject: Re: [amsat-bb] ORI receives half million dollar grant, and
> > it's only the first.
> > Message-ID: <38f30c90-6874-b8bc-5855-9e27bbb3bf66@????.???>
> > Content-Type: text/plain; charset=utf-8
> >
> > On 9/10/20 19:40, Bruce Perens via AMSAT-BB wrote:
> >> In the present time, people have grown to take the Internet a lot more
> >> seriously, and the world ran out of IPV4 addresses in their 32-bit
> space.
> >> We now have IPV6, which has a much larger address space, but IPV4 is
> still
> >> important. So, Brian and friends sold 3/4 of our addresses to Amazon
> for a
> >> lot of money, and formed a non-profit to manage it.
> > Correction: ARDC sold 1/4 (not 3/4) of its original IPv4 address block,
> > 44.0.0.0/8. The part that was sold is 44.192.0.0/10, i.e., the top
> > quarter, which had never been used on the "real" Internet though it had
> > been used internally in some European ampr subnets.
> >
> > ampr.org still has the bottom 3/4 of its original assignment: 44.0.0.0/9
> > and 44.128.0.0/10. Hams running IP are still able to use these two
> blocks.
> >
> > The 44.0.0.0/8 block was originally obtained by Hank Magnuski, KA6M, in
> > the early 1980s, literally for the cost of a phone call. It did not see
> > much use until the mid 1980s when I began work on my KA9Q NOS TCP/IP
> > package; at that time, Hank transferred control of the 44 block to me.
> > Brian Kantor WB6CYT and Wally Lindstruth WA6JPR soon joined in its
> > management, with Brian running much of the infrastructure out of the
> > University of California San Diego (UCSD) where he spent his entire
> career.
> >
> > NONE of us had any idea whatsoever that these numbers would someday have
> > serious monetary value. We did amprnet simply because we really believed
> > in the potential of the Internet and, as hams, felt ham radio was the
> > perfect place to experiment with the Internet protocols. (Some of you
> > have fond memories of those days, as do I.) We thought it was a cool
> > idea that would find good uses, but we had no idea that the Internet
> > over radio would change the world as much as it did. It certainly
> > changed my life; in 1991 I moved from New Jersey to San Diego to accept
> > a position with Qualcomm largely on the basis of my work with TCP/IP
> > over ham radio, and Brian and I became very close friends.
> >
> > In the early 2010s, Brian obtained Hank's and my consent to transfer
> > formal ownership of this address block to a nonprofit he created for the
> > purpose: Amateur Radio Digital Communications, or ARDC. (Wally
> > Lindstruth had passed away by this time). In 2018 and 2019, with full
> > knowledge and consent of the ARDC board, Brian negotiated the sale of
> > the 44.192.0.0/10 block with the proceeds to ARDC to be used for a wide
> > range of charitable grants to benefit ham radio, the Internet, and
> > especially the intersection of the two and their role in STEM education.
> > Unfortunately, the nature of the IP address market and the size of the
> > sale necessitated secrecy, which none of us liked. A nondisclosure
> > agreement still limits what we can publicly say about the terms of the
> > sale, though some facts can be readily determined from public sources
> > such as the "whois" database and IP address market data.
> >
> > Brian passed away unexpectedly in November 2019 and I've taken over as
> > president and chair of ARDC. Hank continues to serve on the grant review
> > committee chaired by John Hays, K7VE.
> >
> > Since ARDC is an IRS 501(c)(3) nonprofit foundation, it is required to
> > file detailed tax returns (990 forms) with the IRS; this will happen
> > very shortly. By law, nonprofit tax returns are publicly available.
> >
> > Phil Karn, KA9Q
> >
> > ARDC President & Chair
> >
> >
> >
> >
> >
> >
> >
> > ------------------------------
> >
> _______________________________________________
> 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: Sat, 10 Oct 2020 06:35:14 -0500
From: Gregory Beat <w9gb@??????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] Re-purpose Cable Modems, headed to dumpsters ?
Message-ID: <3102A3D8-4E37-43CE-8887-848CD5838FF8@??????.???>
Content-Type: text/plain; charset=utf-8
Amateur Radio has a history of re-purposing Radio & Electronics surplus, for
a variety of uses (receiving, transmitting, accessories, etc.).
Recent posting on Github the past two weeks
https://github.com/stdw/cm-sdr
?cm-sdr? is a piece of software to turn a Broadcom BCM3383-based cable modem
into a general purpose Software Defined Radio (SDR)
In its current state, cm-sdr serves as a proof of concept. It can currently
stream I/Q data to a peer via TCP. A script to demodulate and play FM radio
broadcasts is also provided.
cm-sdr is dependent on many functions and memory mapped registers in the
unmodified firmware. Thus, at the moment it is highly tailored to one
specific cable modem model and firmware version.
==
Earlier work by OpenWrt with the Broadcom?s BCM33xx chipset.
https://openwrt.org/docs/techref/hardware/soc/soc.broadcom.bcm33xx
The BCM3383 DOCSIS 3.0 cable gateway System on a Chip (SoC) combines
Broadcom's Full-Band Capture (FBC), dual-band concurrent Wi-Fi and a custom
applications processor.
https://www.broadcom.com/products/broadband/cable/modems/bcm3383
Current Broadcom cable modem SoC offerings
https://www.broadcom.com/products/broadband/cable/modems
==
greg, w9gb
------------------------------
Message: 7
Date: Sat, 10 Oct 2020 09:47:36 -0400
From: Paul Stoetzer <n8hm@????.???>
To: Robert McGwier <rwmcgwier@?????.???>
Cc: Michael Tondee <mat_62@???????.???>, amsat bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] ORI receives half million dollar grant, and,
it's only the first.
Message-ID:
<CABzOSOq160LUY+EBw3H1SuYXy3X1Ov9_vN5okp1Hgb-rnUPFOQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Bob,
AMSAT would have been pleased to send a representative to this meeting.
Unfortunately, AMSAT's Senior Officers were not aware or informed that this
meeting was taking place.
After doing a search on the ARDC website, I do see that there's a mention
of a "Community Meeting" taking place today, but it does not list any
details about the purpose of that meeting.
AMSAT's projects have been made possible through the incredible generosity
of our members and donors. Outside of ARISS, we have generally not pursued
grants for our satellite projects. However, we recognize that the
availability of grant funds, from ARDC and others, certainly increases the
possibilities of what we can do. For this reason, the Board of Directors
created the position of Vice President - Development in 2019 to expand
AMSAT's fundraising efforts, including the pursuit of grant funding.
73,
Paul Stoetzer, N8HM
Executive Vice President
Radio Amateur Satellite Corporation (AMSAT)
On Sat, Oct 10, 2020 at 6:50 AM Robert McGwier via AMSAT-BB <
amsat-bb@?????.???> wrote:
> AMSAT needs to have presentation to the ARDC public meeting happening this
> morning. Over one hundred others representing various organizations have
> signed up. The board of ARDC and the Grant election committee will be
> there to make a presentation and to answer questions.
>
> The processes, laws to follow, structures needed have taken two years to
> put into place and it has all been retarded by COVID-19 and 2020 madness.
>
> ARRL Foundation, YASME, FAR, TAPR, ARISS, ORI etc have all received
> "existence changing " grants for activities they have undertaken.
> Scholarships done by some of these organizations have doubled. ARISS and
> TAPR have had projects funded that didn't require begging cheap hams for
> funding.
>
> Listen to the presentations and ask questions.
>
> If AMSAT isn't signed up, ask why. I will be a moderator of the Q and A.
>
> Bob
> N4HY
> ARDC Grant Committee
>
>
>
> On Fri, Sep 11, 2020, 10:40 AM Michael Tondee via AMSAT-BB <
> amsat-bb@?????.???> wrote:
>
> > Wow! Sounds like you guys have done and are doing an awful lot for the
> > hobby. My thanks to you. It appears there are resources out there if
> > AMSAT is willing to do what's necessary to have access to them. I guess
> > the question is what's that involve? Is it simply just going open source
> > or is there more to it than that? Are there other stumbling blocks that
> > they wouldn't be comfortable with for some reason?
> >
> > 73,
> >
> > Michael, W4HIJ
> >
> >
> > >
> > > ----------------------------------------------------------------------
> > >
> > >
> > >
> > >
> > > ------------------------------
> > >
> > > Message: 2
> > > Date: Thu, 10 Sep 2020 22:41:39 -0700
> > > From: Phil Karn <karn@????.???>
> > > To: amsat-bb@?????.???
> > > Subject: Re: [amsat-bb] ORI receives half million dollar grant, and
> > > it's only the first.
> > > Message-ID: <38f30c90-6874-b8bc-5855-9e27bbb3bf66@????.???>
> > > Content-Type: text/plain; charset=utf-8
> > >
> > > On 9/10/20 19:40, Bruce Perens via AMSAT-BB wrote:
> > >> In the present time, people have grown to take the Internet a lot more
> > >> seriously, and the world ran out of IPV4 addresses in their 32-bit
> > space.
> > >> We now have IPV6, which has a much larger address space, but IPV4 is
> > still
> > >> important. So, Brian and friends sold 3/4 of our addresses to Amazon
> > for a
> > >> lot of money, and formed a non-profit to manage it.
> > > Correction: ARDC sold 1/4 (not 3/4) of its original IPv4 address block,
> > > 44.0.0.0/8. The part that was sold is 44.192.0.0/10, i.e., the top
> > > quarter, which had never been used on the "real" Internet though it had
> > > been used internally in some European ampr subnets.
> > >
> > > ampr.org still has the bottom 3/4 of its original assignment:
> 44.0.0.0/9
> > > and 44.128.0.0/10. Hams running IP are still able to use these two
> > blocks.
> > >
> > > The 44.0.0.0/8 block was originally obtained by Hank Magnuski, KA6M,
> in
> > > the early 1980s, literally for the cost of a phone call. It did not see
> > > much use until the mid 1980s when I began work on my KA9Q NOS TCP/IP
> > > package; at that time, Hank transferred control of the 44 block to me.
> > > Brian Kantor WB6CYT and Wally Lindstruth WA6JPR soon joined in its
> > > management, with Brian running much of the infrastructure out of the
> > > University of California San Diego (UCSD) where he spent his entire
> > career.
> > >
> > > NONE of us had any idea whatsoever that these numbers would someday
> have
> > > serious monetary value. We did amprnet simply because we really
> believed
> > > in the potential of the Internet and, as hams, felt ham radio was the
> > > perfect place to experiment with the Internet protocols. (Some of you
> > > have fond memories of those days, as do I.) We thought it was a cool
> > > idea that would find good uses, but we had no idea that the Internet
> > > over radio would change the world as much as it did. It certainly
> > > changed my life; in 1991 I moved from New Jersey to San Diego to accept
> > > a position with Qualcomm largely on the basis of my work with TCP/IP
> > > over ham radio, and Brian and I became very close friends.
> > >
> > > In the early 2010s, Brian obtained Hank's and my consent to transfer
> > > formal ownership of this address block to a nonprofit he created for
> the
> > > purpose: Amateur Radio Digital Communications, or ARDC. (Wally
> > > Lindstruth had passed away by this time). In 2018 and 2019, with full
> > > knowledge and consent of the ARDC board, Brian negotiated the sale of
> > > the 44.192.0.0/10 block with the proceeds to ARDC to be used for a
> wide
> > > range of charitable grants to benefit ham radio, the Internet, and
> > > especially the intersection of the two and their role in STEM
> education.
> > > Unfortunately, the nature of the IP address market and the size of the
> > > sale necessitated secrecy, which none of us liked. A nondisclosure
> > > agreement still limits what we can publicly say about the terms of the
> > > sale, though some facts can be readily determined from public sources
> > > such as the "whois" database and IP address market data.
> > >
> > > Brian passed away unexpectedly in November 2019 and I've taken over as
> > > president and chair of ARDC. Hank continues to serve on the grant
> review
> > > committee chaired by John Hays, K7VE.
> > >
> > > Since ARDC is an IRS 501(c)(3) nonprofit foundation, it is required to
> > > file detailed tax returns (990 forms) with the IRS; this will happen
> > > very shortly. By law, nonprofit tax returns are publicly available.
> > >
> > > Phil Karn, KA9Q
> > >
> > > ARDC President & Chair
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > ------------------------------
> > >
> > _______________________________________________
> > 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: 8
Date: Sat, 10 Oct 2020 11:36:57 -0500
From: "Mac A. Cody" <maccody@???.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Re-purpose Cable Modems, headed to dumpsters ?
Message-ID: <3892fdaa-3590-e8d7-1e05-c73efa39bb45@???.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Greg,
Interesting concept.? Thanks for the post!
I scanned through the various sources and I cannot find which cable modem or
firmware version is being used.? I also looked through the companion Github
https://github.com/stdw/bcm3383-reverse-engineering
without gaining any insight.
Looking at the OpenWrt webpage you referenced, the only cable modem
mentioned
that specifically uses the BCM3383 is the Technicolor TC7200. There are
probably others, though.
I hope that more development occurs.
73
Mac / AE5PH
On 10/10/20 6:35 AM, Gregory Beat via AMSAT-BB wrote:
> Amateur Radio has a history of re-purposing Radio & Electronics surplus,
for a variety of uses (receiving, transmitting, accessories, etc.).
>
> Recent posting on Github the past two weeks
> https://github.com/stdw/cm-sdr
>
> ?cm-sdr? is a piece of software to turn a Broadcom BCM3383-based cable
modem into a general purpose Software Defined Radio (SDR)
>
> In its current state, cm-sdr serves as a proof of concept. It can
currently stream I/Q data to a peer via TCP. A script to demodulate and play
FM radio broadcasts is also provided.
>
> cm-sdr is dependent on many functions and memory mapped registers in the
unmodified firmware. Thus, at the moment it is highly tailored to one
specific cable modem model and firmware version.
>
> ==
>
> Earlier work by OpenWrt with the Broadcom?s BCM33xx chipset.
> https://openwrt.org/docs/techref/hardware/soc/soc.broadcom.bcm33xx
>
> The BCM3383 DOCSIS 3.0 cable gateway System on a Chip (SoC) combines
Broadcom's Full-Band Capture (FBC), dual-band concurrent Wi-Fi and a custom
applications processor.
> https://www.broadcom.com/products/broadband/cable/modems/bcm3383
> Current Broadcom cable modem SoC offerings
> https://www.broadcom.com/products/broadband/cable/modems
>
> ==
> greg, w9gb
>
> _______________________________________________
> 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: 9
Date: Sat, 10 Oct 2020 16:50:53 -0400
From: Robert Bruninga <bruninga@????.???>
To: amsat bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] PSAT is ON circa 9:10 AM PST (Dual hop
testing?)
Message-ID:
<CALdCfNL5mL0MyXuju3gHmx12HMXxtkAqqFtsK4hB7MxUCwvicQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Robert NcHale KE6BLR has turned on PSAT for digipeating.
I have no idea if it has the power budget to support it, but we will see.
If the telemetry counter gets above 90 (minutes) then it is surviving
eclipses
See http://www.findu.com/cgi-bin/raw.cgi?call=psat,psat-1&time=1&start=12
Have fun. Try some double hops from ISS to PSAT using the path NA1SS,PSAT
If you simply used APRSAT,APRSAT, then PSAT might digi the first hop too
and then be clobbered when ISS also does it. Then the second hop will not
go via PSAT beacuse by then it is a dupe.
Bob, WB4APR
>
>
------------------------------
Message: 10
Date: Sat, 10 Oct 2020 17:08:28 -0700
From: "Frank Karnauskas" <n1uw@???????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] ANS-285 AMSAT News Service Weekly Bulletin -
October 11, 2020
Message-ID: <001e01d69f62$a61b32a0$f25197e0$@???????.???>
Content-Type: text/plain; charset="iso-8859-1"
AMSAT NEWS SERVICE
ANS-285
The AMSAT News Service bulletins are a free, weekly news and
information service of AMSAT North America, The Radio
Amateur Satellite Corporation. ANS publishes news related to Amateur
Radio in space including reports on the activities of a worldwide
group of Amateur Radio operators who share an active interest in
designing, building, launching and communicating through analog and
digital Amateur Radio satellites.
The news feed on http://amsat.org publishes news of Amateur Radio
in space as soon as our volunteers can post it.
Please send any amateur satellite news or reports to:
ans-editor at amsat dot org.
In this edition:
* AMSAT 2020 Virtual Symposium Schedule Announced
* UH Satellite Successfully Blasts into Space
* ARISS to Celebrate 20 Years of Ham Radio on the ISS
* IARU Region 2 Releases 2020 Band Plan Revision
* Two More Astronauts Earn Amateur Radio Licenses
* Upcoming Satellite Operations
* Hamfests, Conventions, Maker Faires, and Other Events
* ARISS News
* Satellite Shorts from All Over
SB SAT @ AMSAT $ANS-285.01
ANS-285 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 285.01
>From AMSAT HQ KENSINGTON, MD.
October 11, 2020
To All RADIO AMATEURS
BID: $ANS-285.01
AMSAT 2020 Virtual Symposium Schedule Announced
The 2020 Virtual AMSAT Space Symposium and Annual General Meeting
will be held on Saturday, October 17 from 9:00AM CDT - 5:00PM CDT
(UTC-5). Symposium presentations will be a combination of
pre-recorded and live video segments along with question and answer
sessions held via a Zoom meeting.
The Symposium will also be made available for free live on AMSAT's
YouTube channel.
Registered attendees will receive a digital copy of the AMSAT
Symposium Proceedings and will be entitled to join the Zoom meeting.
Only registered attendees will be able to participate in the question
and answer sessions. Registered attendees will also be entered into
prize drawings. Registration is free and available only for AMSAT
members. Registration will close on Friday, October 16, 2020 at
5:00PM CDT.
Register today at https://launch.amsat.org/Events/.
2020 Virtual AMSAT Space Symposium and Annual General Meeting
Schedule - All times Central Daylight Time (UTC-5)
- 09:00 Opening Remarks
- 09:15 AMSAT GOLF-TEE System Overview and Development Status
Eric Skoog, K1TVV
- 09:45 GOLF IHU Coordination
Burns Fisher, WB1FJ
- 10:15 GOLF Downlink Coordination
Burns Fisher, WB1FJ, and Chris Thompson, AC2CZ/G0KLA
- 10:45 FUNcube Next
Phil Ashby, M6IPX, and Graham Shirville, G3VZV
- 11:15 LunART (Luna Amateur Radio Transponder)
Peter Guezlow, DB2OS
- 11:45 CatSat HF Experiment Overview
Mike Parker, KT7D, and Chris Walker, K7CKW
- 12:15 Neutron-1 CubeSat
University of Hawaii
- 12:45 Break
- 13:00 AMSAT Education / CubeSat Simulator
Alan Johnston, KU2Y
- Overview of CubeSat Simulator Project
- Live or pre-recorded demonstrations of CubeSat Simulator
- 14:00 ARISS / AREx
Frank Bauer, KA3HDO
- ARISS: 2020 Update
- Next Generation Radio System - First Element Operations and
Future System Plans
- AREx/Lunar Gateway and Other Lunar Opportunities
- 15:00 AMSAT Engineering Update
Jerry Buxton, N0JY
- Fox-1 Program Lessons Learned
- GOLF Update
- 16:00 2020 AMSAT Annual General Meeting
- 17:00 Close of Symposium
[ANS thanks the AMSAT office for the above information.]
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Due to the COVID-19 pandemic, the AMSAT office
is closed until further notice. For details, please visit
https://www.amsat.org/amsat-office-closed-until-further-notice/
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UH Satellite Successfully Blasts into Space
Neutron-1 successfully launched as part of an International Space
Station (ISS) resupply mission from NASA?s Wallops Flight Facility in
Virginia on Friday, October 2. The small satellite involved more than
100 University of Hawai'i students, faculty, staff and volunteers,
and will measure neutrons in space and radiation coming from the Sun.
Neutron-1 was aboard the ELaNa 31, NG-14 rocket as part of a
rideshare mission, which included other satellites, and will be in
space for approximately one year. When astronauts set up the deployer
pod for launch out of the ISS around mid-November, Hawai'i Space
Flight Laboratory (HSFL) will continue to be the primary driver for
the Neutron-1 mission.
Neutron-1 carries an FM repeater: A downlink on 435.300 MHz and an
uplink on 145.840 MHz have been coordinated.
UH students, faculty, staff and volunteers were able to view the
rocket launch live on NASA TV and can be viewed on the HSFL website.
?I am thrilled. This is a great achievement of the University of
Hawai'i?s Neutron-1 team of students, staff and faculty,? said
Peter Englert, a Hawai'i Institute of Geophysics and Planetology
(HIGP) researcher and principal investigator for the Neutron-1
mission. ?It demonstrates the quality of undergraduate education and
research in space science and engineering at the university.?
?This mission development demonstrates that HSFL can deliver flight
hardware and work collaboratively with other institutions regarding
NASA planetary exploration,? said Lloyd French, HSFL researcher and
project manager for the Neutron-1 mission. ?Small spacecraft and
cubesat architectures are the next generation of planetary robotic
exploration, and HSFL is poised to take advantage of the
opportunity.?
This is HSFL?s second completed spacecraft. In 2016, the first
iteration of the Neutron-1 payload was lost due to a failed
suborbital rocket that was launched from Wallops Flight Facility.
?Watching the NG-14 launch from Wallops Flight Facility in Virginia
was an amazing opportunity to reflect how far we have come as a team,
how many students were impacted by the project, and all of the
lessons that were learned along the way,? said Amber Imai-Hong, an
avionics engineer at HSFL and ground station coordinator for the
Neutron-1 mission. ?Watching a rocket ascend to space is always
amazing, and to know that this leg of the journey is complete was a
huge relief.?
The team is now gearing up for mission operations. HSFL will control
Neutron-1 via the GlobalStar network, and partner with Amateur Radio
operators to communicate with the satellite through HSFL?s Kaua'i
Community College Ground Station to receive and send messages to the
satellite when it is released from ISS in November.
The Neutron-1 project was funded by a NASA EPSCoR Research
Infrastructure Development award, and the team conveys special thanks
to the Air Force Research Lab for providing solar cells for the
project.
[ANS thanks the University of Hawai'i News for the above information.]
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Purchase AMSAT Gear on our Zazzle storefront.
25% of the purchase price of each product goes
towards Keeping Amateur Radio in Space
https://www.zazzle.com/amsat_gear
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ARISS to Celebrate 20 Years of Ham Radio on the ISS
Amateur Radio on the International Space Station (ARISS) will soon
celebrate 20 years of continuous ham radio operations on the
International Space Station (ISS). NASA is commemorating the
milestone with a newly produced infographic highlighting the
educational contacts via amateur radio between astronaut crew members
aboard the ISS and students. Over its 20 years, ARISS has supported
nearly 1,400 scheduled ham radio contacts with schools, student
groups, and other organizations.
Planning for ARISS began in 1996 as a cooperative venture among
national amateur radio and amateur satellite societies, with support
from their respective space agencies. The ARISS ham radio gear
actually arrived on the station before the Expedition 1 crew, headed
by Commander Bill Shepherd, KD5GSL. The FCC issued ham radio call
sign NA1SS for ISS operations. After Expedition 1 arrived on station,
some initial tests with ARISS ham radio ground stations and
individual hams confirmed the ham gear was working properly. The
first ARISS school contact was made with students at Luther Burbank
Elementary School in Illinois on December 21, 2000, with Shepherd at
the helm of NA1SS on the ISS, and ARISS operations team mentor
Charlie Sufana, AJ9N, guiding the operation on the ground.
NASA produced a video of students talking with astronaut
Chris Cassidy, KF5KDR, during an ARISS contact in May 2020.
Before and during scheduled ham radio contacts, students, educators,
parents, and communities learn about space and related technologies,
and radio communication using amateur radio. ARISS has inspired
thousands of students, promoting exploration through educational
experiences spanning science, technology, engineering, the arts, and
mathematics.
ARISS relies on a large network of amateur radio operator volunteers,
many associated with radio clubs in the communities where students
and groups participating in the contact reside. ARISS volunteers
support satellite ground stations, serve as technical mentors, and
provide additional help in the areas of education, community
outreach and public relations.
While student-to-astronaut radio contacts are a primary objective for
ARISS, the capability has also inspired further experimentation for
Amateur Radio in space and evaluation of new technologies. In
September, ARISS announced that the initial element of its next-
generation ham radio system had been installed in the ISS Columbus
module. The new radio system replaces equipment originally certified
for spaceflight in mid-2000. The onboard ham station also provides a
contingency communications system for the ISS crew. Several
astronauts have also enjoyed using NA1SS to make casual contacts
with ? and delighting ? earthbound members of the ham radio
community.
In the US, ARISS sponsors include ARRL, AMSAT, and NASA, the ISS
National Lab-Space Station Explorers, and NASA?s Space Communications
and Navigation program. Global organizing partners include
International Amateur Radio Union (IARU) member-societies as well as
AMSAT organizations, and space agencies in Canada, Europe, Russia,
Japan, and elsewhere.
The next proposal window for US schools and educational organizations
to host an amateur radio contact with a crew member on board the ISS
opened on October 1 for contacts that would take place from July
through December 2021.
Like many educators who have coordinated ARISS radio contacts for
their students, teacher Rita Wright, KC9CDL, an ARRL member,
described the first ARISS school contact as inspirational and having
a lasting impact on their community. Five months after their contact,
nearly 500 students greeted Bill Shepherd when he visited Luther
Burbank School. Wright said it was ?like tossing a pebble into a
stream.?
?The ripple effects are still occurring, and I suspect will continue
to occur for a long time,? she said. ?We have a young staff, and
witnessing these events has inspired some to look for other
interdisciplinary projects. They are beginning their dream. Many of
our students are looking forward to careers associated with the
space industry.?
[ANS thanks the ARRL for the above information.]
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AMSAT's GOLF Program is about getting back to higher orbits, and it
all begins with GOLF-TEE - a technology demonstrator for deployable
solar panels, propulsion, and attitude control. Come along for the
ride. The journey will be worth it!
https://tinyurl.com/ANS-GOLF
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IARU Region 2 Releases 2020 Band Plan Revision
International Amateur Radio Union Region 2 (IARU R2) ? the Americas ?
has released the September 2020 revision of its Band Plan and made
procedural changes to shorten the time to reflect future adjustments.
The Band Plan includes a change approved at the October 2019 General
Assembly to add an Amateur Satellite uplink subband, 21.125 to
21.450 MHz, on a non-exclusive basis. This matches similar changes
in the Region 1 and Region 3 band plans.
A number of administrative changes have been made to the text,
although the Band Plan itself has not been modified. These changes
include:
- Modifications to the wording of the Band Plan to ensure that
national regulators understand it is a voluntary document, and that
countries may depart from the plan based on national requirements.
- Definitions additions: Amateur Radio Direction Finding (ARDF),
primary service, secondary service, and several acronyms.
- Inclusion of information detailing the primary and secondary users
in each amateur radio allocation band.
- Correction of minor typographical errors.
At its May 2020 meeting, the IARU R2 Executive Committee added text
to the Standard Operating Procedures that provides a process for the
Band Plan to be updated in a more timely manner. Prior to this
change, Band Plan modifications could only be approved at a General
Assembly, held once every 3 years. Under the new provision, the Band
Planning Committee may circulate proposed changes to member-societies
with the approval of the Executive Committee. ?Should no more than
one objection be received within a 60-day period, the change shall be
deemed accepted and reported as such at the next conference,? the
Band Planning Committee?s terms of references state.
The IARU R2 Band Planning Committee has a member from each of the
seven areas in Region 2, and one of those members also serves as the
committee?s chair. The current Committee Chair is Alphonse Penney,
VO1NO/VA1AVR.
[ANS thanks the ARRL and George Gorsline, VE3YV, IARU Region 2
Secretary for the above information.]
--------------------------------------------------------------------
Two More Astronauts Earn Amateur Radio Licenses
Although the lockdown of Johnson Space Center (JSC) postponed Amateur
Radio training and licensing over the past seven months, NASA ISS
Ham Project Coordinator Kenneth Ransom, N5VHO, was able to work with
all of the new astronaut-class graduates, as well as offer some
refresher courses with already-licensed astronauts. Licensed
astronauts on the International Space Station (ISS) may operate the
on-station ham radio equipment without restrictions.
Astronauts often participate in Amateur Radio on the International
Space Station (ARISS) contacts with schools and groups on Earth.
NASA Astronaut Kayla Barron, who completed her introductory course
in June and received basic ham radio operations training in late
September, recently tested and received the call sign KI5LAL.
European Space Agency astronaut Matthias Maurer passed his Amateur
Radio exam on July 30, and he got his basic ham operations training
in July. He now is KI5KFH.
Astronauts Shane Kimbrough, KE5HOD, and Shannon Walker, KD5DXB,
completed the refresher course earlier this year. Two other new
astronauts are in the queue to take the Technician license exam.
[ANS thanks the ARRL and Rosalie White, K1STO for the above
information.]
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Need new satellite antennas? Purchase Arrows, Alaskan Arrows,
and M2 LEO-Packs from the AMSAT Store. When you purchase through
AMSAT, a portion of the proceeds goes towards
Keeping Amateur Radio in Space.
https://amsat.org/product-category/hardware/
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Upcoming Satellite Operations
- JQ78, October 7?12, 2020
JW7XK (or maybe LA7XK) will be active on RS-44 on as many passes as
possible. His focus is to work NA and maybe JA, when/if it is
possible. Link frequency 435.660 +/- Doppler.
- JN15jo, October 19, 2020
Jerome, F4DXV, is planning to be on RS-44 beginning at 20:00 UTC
specifically for North America. The footprint covers much of eastern
NA. This is a difficult operation after dark and Jerome hopes that
many will take advantage of the opportunity to work this very rare
grid. RS-44 will be around 1430km.
- CN98/DN08, October 12, 2020
@????? until Sunday. Holiday style.
- DN17/DN18 Line, October 12, 2020
@????? and @?????? and maybe @??????.
- DN13, DN23, DN22, October 16-19, 2020
@??????? no pass list, follow him on twitter.
October 16 on the DN13/23 Line.
October 17 in DN22.
October 18 in DN22.
October 19 on the DN13/23 line.
- FN44/FN54, October 11-16, 2020
KQ2RP will be on FM birds from FN54 with occasional FN44/54 line.
FN53 is possible. Logging as KQ2RP/1.
DK78/ DK79, October 12, 2020
@????? will be holiday style on FM and maybe some linears.
EL Grids, October 10-14, 2020
@?????
October 10 in EL95 Key Largo.
October 11 in EL94 Key West.
October 12 in EL84 Dry Tortuga.
October 13 in EL94 Key West.
October 14 TBD.
[ANS thanks Paul Overn, KE0PBR for the above information.]
--------------------------------------------------------------------
Hamfests, Conventions, Maker Faires, and Other Events
Clint Bradford K6LCS has booked his ?Work the FM Voice Satellites
with Minimal Equipment? presentation for the clubs. The next Zoom
presentation is on October 27, 2020 for the Cherryland ARC/Traverse
Bay ARC.
[ANS thanks Robert Bankston, KE4AL for the above information.]
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AMSAT, along with our ARISS partners, is developing an amateur
radio package, including two-way communication capability, to
be carried on-board Gateway in lunar orbit.
Support AMSAT's projects today at https://www.amsat.org/donate/
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ARISS News
* Completed Contacts
Gagarin From Space Radio Amateur Session With Students Of The
International Aerospace School At Amgu Blagoveshchensk,
Amur State University, Blagoveshchensk, Russia direct via RK?J.
The ISS callsign was RS?ISS.
The astronaut was Anatoli Ivanishin.
The contact was successful on September 28, 2020 at 08:48 UTC.
* Upcoming Contacts
Ramona Lutheran School, Ramona, CA, direct via N6ROR.
The ISS callsign is presently scheduled to be NA1SS.
The scheduled astronaut is Chris Cassidy KF5KDR.
Contact is go for: Wednesday, October 14, 2020 at 16:26:13 UTC.
[ANS thanks Charlie Sufana, AJ9N for the above information.]
--------------------------------------------------------------------
Shorts from All Over
* Changes to AMSAT-NA TLE Distribution for October 8, 2020
Update on decaying satellites:
- The decay epoch predicted by Space-Track for EnduroSat One -
Cat ID 43551 is 2020-10-15.
- The decay epoch predicted by Space-Track for MO-106 -
Cat ID 44830 is 2020-10-09.
Decay has occurred or is eminent.
[ANS thanks Ray Hoad, WA5QGD for the above information.]
* Next Rocket Lab Launch Window Starts October 20, 2020 UTC
'In Focus' is a rideshare mission to low Earth orbit for Planet and
Spaceflight Inc.?s customer Canon Electronics. The mission will
deploy a total of 10 satellites to precise and individual orbits
from Rocket Lab Launch Complex 1 in Mahia, New Zealand. The
scheduled launch time is 21:14 UTC. Full details can be seen at
https://www.rocketlabusa.com/missions/next-mission/.
[ANS thanks Terry Osborne, ZL2BAC for the above information.]
* British Columbia Radio Amateur Hears Mars Reconnaissance Orbiter
According to a Spaceweather.com report, Scott Tilley, VE7TIL, in
British Columbia, Canada, received a signal from the NASA Mars
Reconnaissance Orbiter (MRO), flying just 274 kilometers (about 170
miles) above the red planet?s surface. The signal was an X-band
carrier containing no data or telemetry.
?Its purpose is to allow for Doppler tracking,? Tilley explained.
?The rapid change in pitch of the signal is caused by the relative
motion of the satellite and the observer.? He used a homemade
satellite dish to hear the orbiter.
Tilley enjoys tracking down signals from ?dead? satellites, zombie
satellites, and spy satellites, but the MRO was a first for him.
?MRO?s signal is weak, but it is one of the louder signals in Mars
orbit,? he said. ?The spacecraft has a large dish antenna it uses as
a relay for other Mars missions. With the proximity of Mars these
days, it was the perfect time to try.?
In 2018, Tilley saw the ?signature? of the Imager for Magnetopause-
to-Aurora Global Exploration (IMAGE), a NASA spacecraft believed to
have died in 2005. That discovery delighted space scientists.
[ANS thanks the ARRL for the above information.]
* Rocket Lab CEO Warns of Space Junk
In 1978, NASA scientist Donald Kessler warned of a potential
catastrophic, cascading chain reaction in outer space. Today known
as "Kessler Syndrome," the theory posited that space above Earth
could one day become so crowded, so polluted with both active
satellites and the detritus of space explorations past, that it
could render future space endeavors more difficult, if not
impossible.
Last week, the CEO of Rocket Lab, a launch startup, said the
company is already beginning to experience the effect of growing
congestion in outer space. Read the complete story at:
https://tinyurl.com/ANS-285-Space-Junk
[ANS thanks CNN for the above information.]
--------------------------------------------------------------------
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining
donors to AMSAT Project Funds, will be eligible to receive
additional benefits. Application forms are available from the
AMSAT office.
Primary and secondary school students are eligible for membership at
one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the
student rate for a maximum of six post-secondary years in this
status.
Contact Martha at the AMSAT office for additional student
membership information.
73,
This week's ANS Editor,
Frank Karnauskas, N1UW
n1uw at amsat dot org
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!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
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!
https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 15, Issue 410
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