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CX2SA > SATDIG 09.09.19 21:02l 886 Lines 34762 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Update: Rent GEO bandwidth for US (John Kludt)
2. Re: Update: Rent GEO bandwidth for US (Michelle Thompson)
3. Re: Update: Rent GEO bandwidth for US (Robert MacHale)
4. Re: Update: Rent GEO bandwidth for US (Ev Tupis)
5. Re: Update: Rent GEO bandwidth for US (KC9SGV)
6. Re: Update: Rent GEO bandwidth for US (KC9SGV)
7. Wrong grid exchanged - ND0C/VE6 - 21 Aug (randydvm@??.????
8. Re: Update: Rent GEO bandwidth for US (John Kludt)
9. Re: Update: Rent GEO bandwidth for US (Ev Tupis)
----------------------------------------------------------------------
Message: 1
Date: Wed, 21 Aug 2019 21:51:46 -0400
From: John Kludt <johnnykludt@?????.???>
To: Michelle Thompson <mountain.michelle@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID:
<CABsMmtRZqGUskngOK8t+DTwemX0iKkNgsXpK4=P5HYxMpR3C-w@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
MIchelle,
Every disaster drill I have ever done makes the assumption that the
Internet is *not* available. Will this system work without Internet
access? It could still be fun to play with and do proof of concept work
but absent the Internet might not be too useful in an emergency setting.
Please clarify.
John
On Wed, Aug 21, 2019 at 9:38 PM Michelle Thompson via AMSAT-BB <
amsat-bb@?????.???> wrote:
> 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
> _______________________________________________
> 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: 2
Date: Wed, 21 Aug 2019 18:59:38 -0700
From: Michelle Thompson <mountain.michelle@?????.???>
To: John Kludt <johnnykludt@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID:
<CACvjz2W3XZd_S0q3TWC_76RGBei5SaU=z2AiQ=bt3oFirgPjMQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Yes, it works without Internet access.
What goes up does come down over the entire footprint. No internet
required.
Streaming from a receiver somewhere over the Internet is just a nice
additional way to monitor it if you don't want to build your own Ku
receiver.
-Michelle W5NYV
On Wed, Aug 21, 2019 at 6:51 PM John Kludt <johnnykludt@?????.???> wrote:
> MIchelle,
>
> Every disaster drill I have ever done makes the assumption that the
> Internet is *not* available. Will this system work without Internet
> access? It could still be fun to play with and do proof of concept work
> but absent the Internet might not be too useful in an emergency setting.
>
> Please clarify.
>
> John
>
> On Wed, Aug 21, 2019 at 9:38 PM Michelle Thompson via AMSAT-BB <
> amsat-bb@?????.???> wrote:
>
>> 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
>> _______________________________________________
>> 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: Thu, 22 Aug 2019 02:05:08 +0000 (UTC)
From: Robert MacHale <robert.machale@?????.???>
To: AMSAT BB <amsat-bb@?????.???>, Michelle Thompson
<mountain.michelle@?????.???>
Subject: Re: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID: <818976570.1219284.1566439508286@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Very interesting idea!
Robert MacHale. KE6BLR Ham Radio License.?http://spaceCommunicator.club/aprs?
. Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration
On Wednesday, August 21, 2019, 06:38:04 PM PDT, Michelle Thompson via
AMSAT-BB <amsat-bb@?????.???> wrote:
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
_______________________________________________
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: 4
Date: Thu, 22 Aug 2019 02:34:35 +0000 (UTC)
From: Ev Tupis <w2ev@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID: <295111644.412214.1566441275801@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Hi Michelle,
What a fascinating opportunity.? I'd like to try to describe this using
different words to see if I get it.
Echostar 9 is a geosynchronous satellite with 1 MHz of spectrum to sell.
Both the up and down frequencies are outside of the amateur bands.
To use it, an aggregator is needed.? An aggregator is a "bridge" device that
converts amateur-band RF to satellite uplink RF and setellite downlink RF to
amateur-band RF.
Amateurs simply need to be in range of an aggregator.? It is the aggregators
responsibility to remain aimed at the satellite.
The aggregator determines if it will bridge FM or Linear (SSB, CW, PSK31,
etc.) modes.
Is this right?
Regards,Ev, W2EV
On Wednesday, August 21, 2019, 9:38:12 PM EDT, Michelle Thompson via
AMSAT-BB <amsat-bb@?????.???> wrote:
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
_______________________________________________
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: 5
Date: Wed, 21 Aug 2019 21:47:05 -0500
From: KC9SGV <kc9sgv@?????.???>
To: Robert MacHale <robert.machale@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID: <055ABEBB-8FF4-41DF-9FEA-CD99DEC762E9@?????.???>
Content-Type: text/plain; charset=us-ascii
Hi Michelle,
This is absolutely wonderful !
1 MHz is ample for a start.
Say, 300 KHz for legacy ham radio modes, analog and digital (ala 40 M HF).
The rest for DATV (might be tight).
Please set up a Paypal account and link.
I will be your first contributor.
Now off to the shack bench to start building the ground station !
We are waiting for details.
Bernard,
KC9SGV
Sent from my iPad
> On Aug 21, 2019, at 9:05 PM, Robert MacHale via AMSAT-BB
<amsat-bb@?????.???> wrote:
>
> Very interesting idea!
> Robert MacHale. KE6BLR Ham Radio License. http://spaceCommunicator.club/aprs
> . Supporting Boy Scout Merit Badges in Radio, Robotics, and Space
Exploration
>
>
>
> On Wednesday, August 21, 2019, 06:38:04 PM PDT, Michelle Thompson via
AMSAT-BB <amsat-bb@?????.???> wrote:
>
> 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
> _______________________________________________
> 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: 6
Date: Wed, 21 Aug 2019 22:14:30 -0500
From: KC9SGV <kc9sgv@?????.???>
To: Michelle Thompson <mountain.michelle@?????.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID: <55C66FE2-4A8C-462A-832D-13AB00E6823B@?????.???>
Content-Type: text/plain; charset=us-ascii
Here we go...
ADALM Pluto receives up to 3.8 GHz
https://www.analog.com/en/design-center/evaluation-hardware-and-software/evalu
ation-boards-kits/adalm-pluto.html#eb-overview
Bernard,
KC9SGV
Sent from my iPad
> On Aug 21, 2019, at 10:02 PM, KC9SGV <kc9sgv@?????.???> wrote:
>
> My Octagon quad LNB for direct reception:
> Input: 10.7 GHz to 12.75 GHz (possibly higher)
> L.O. : 9.75/10.6 GHz
> Excellent noise ratio up to 0.1 dB
> Gain: 60~65 dB
> High frequency stability.
>
> Now... 12.75 GHz - 9.75 GHz (L.O.) = 3 GHz
> Looking for an SDR dongle that can receive at 3 GHz.
> Does this sound correct ?
>
> Bernard,
> KC9SGV
>
> Sent from my iPad
>
>> On Aug 21, 2019, at 8:34 PM, Michelle Thompson via AMSAT-BB
<amsat-bb@?????.???> wrote:
>>
>> 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
>> _______________________________________________
>> 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: 7
Date: Thu, 22 Aug 2019 03:55:35 +0000
From: randydvm@??.???
To: amsat-bb@?????.???
Subject: [amsat-bb] Wrong grid exchanged - ND0C/VE6 - 21 Aug
Message-ID: <2197cb4d5abcce4fefd3855311959324@??.???>
Content-Type: text/plain; charset=UTF-8; format=flowed
While operating from grid DO30 as ND0C/VE6 today (21 Aug), I messed up
and gave out the wrong grid (DN30) during the 1808Z AO-92 pass and the
1815Z AO-91 pass. I can only plead temporary insanity and ask
forgiveness of all that I confused. (I had been roving in DN38 for the
previous several days and apparently couldn?t get out of the ?DN? rut!)
I was in DO30 for both of those passes as I was for the next AO-91 pass
at 1948Z. By that time I had recognized my mistake - to my horror - and
correctly identified the grid!
So again, to the 16 stations I worked on those two passes, I apologize.
I will up-load to LotW when I get back home on 1 September with the
correct grid info! (Thanks for your patience.)
I am now in DO21 for a couple days, catching a few passes in between
family vacation activities.
73,
Randy, ND0C (roving as ND0C/VE6)
------------------------------
Message: 8
Date: Thu, 22 Aug 2019 07:25:45 -0400
From: John Kludt <johnnykludt@?????.???>
To: Amsat BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID: <5d5e7bbb.1c69fb81.81cc0.c959@??.??????.???>
Content-Type: text/plain; charset=utf-8
Ev,
But the aggregator can't uplink directly to the satellite as the uplink is
outside of the amateur bands.? So the aggregator must send everything to an
earth station with a commercial license, correct?
Would the aggregator be single channel or work more like a linear
transponder sending along multiple signals in mixed modes at once??
Unless I am wrong, the aggregator must be colocated with the commercial
earth station or we are back into Internet required land thereby decreasing
the encomm utility of this effort.
Sancho
Sent from my Verizon Motorola Smartphone
On Aug 21, 2019 22:34, Ev Tupis via AMSAT-BB <amsat-bb@?????.???> wrote:
>
> Hi Michelle,
> What a fascinating opportunity.? I'd like to try to describe this using
different words to see if I get it.
> Echostar 9 is a geosynchronous satellite with 1 MHz of spectrum to sell.
> Both the up and down frequencies are outside of the amateur bands.
> To use it, an aggregator is needed.? An aggregator is a "bridge" device
that converts amateur-band RF to satellite uplink RF and setellite downlink
RF to amateur-band RF.
> Amateurs simply need to be in range of an aggregator.? It is the
aggregators responsibility to remain aimed at the satellite.
>
> The aggregator determines if it will bridge FM or Linear (SSB, CW, PSK31,
etc.) modes.
> Is this right?
> Regards,Ev, W2EV
>
> ??? On Wednesday, August 21, 2019, 9:38:12 PM EDT, Michelle Thompson via
AMSAT-BB <amsat-bb@?????.???> wrote:?
>
> 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
> _______________________________________________
> 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: 9
Date: Thu, 22 Aug 2019 11:38:13 +0000 (UTC)
From: Ev Tupis <w2ev@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Update: Rent GEO bandwidth for US
Message-ID: <550458558.478402.1566473893749@????.?????.???>
Content-Type: text/plain; charset=UTF-8
You're asking the wrong person, Sancho (lol).? I was restating Michelle's
potentially very exciting opportunity using different words to see if I
understood it.
Let's wait on her reply.? I haven't seen it yet.
Ev
On Thursday, August 22, 2019, 7:29:09 AM EDT, John Kludt via AMSAT-BB
<amsat-bb@?????.???> wrote:
Ev,
But the aggregator can't uplink directly to the satellite as the uplink is
outside of the amateur bands.? So the aggregator must send everything to an
earth station with a commercial license, correct?
Would the aggregator be single channel or work more like a linear
transponder sending along multiple signals in mixed modes at once??
Unless I am wrong, the aggregator must be colocated with the commercial
earth station or we are back into Internet required land thereby decreasing
the encomm utility of this effort.
Sancho
Sent from my Verizon Motorola Smartphone
On Aug 21, 2019 22:34, Ev Tupis via AMSAT-BB <amsat-bb@?????.???> wrote:
>
> Hi Michelle,
> What a fascinating opportunity.? I'd like to try to describe this using
different words to see if I get it.
> Echostar 9 is a geosynchronous satellite with 1 MHz of spectrum to sell.
> Both the up and down frequencies are outside of the amateur bands.
> To use it, an aggregator is needed.? An aggregator is a "bridge" device
that converts amateur-band RF to satellite uplink RF and setellite downlink
RF to amateur-band RF.
> Amateurs simply need to be in range of an aggregator.? It is the
aggregators responsibility to remain aimed at the satellite.
>
> The aggregator determines if it will bridge FM or Linear (SSB, CW, PSK31,
etc.) modes.
> Is this right?
> Regards,Ev, W2EV
>
> ??? On Wednesday, August 21, 2019, 9:38:12 PM EDT, Michelle Thompson via
AMSAT-BB <amsat-bb@?????.???> wrote:?
>
> 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
> _______________________________________________
> 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
_______________________________________________
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
------------------------------
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 14, Issue 322
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