Es’hail mind storm. !!
Es’hail-2 geostationary satellite carrying AmateurRadio transponders expected to launch November 15 - 2018/11/05/
Most of the operators have no gears to covering the new frequencies.
So is it possible to put a down-converter and up-converter in one of the cubesat ??
Also the foot print will extend tremendously as the cubesat cover new distance far from all Es’hail fixed footprint ?!
Anyone’s can use V/U gears tracking the cubesat ,which really the signal from Es’hail sat!!
Again it’s a mind storm idea. I Hope others will share with more ideas and info !!
73’s Nader Omer St2nh
N-O-PH
Hi,
Interesting idea.
Problems to overcome:
Size of dish / patch required to be flown as part of satellite Attitude control and pointing in real time Power management Band width limitations Doppler correction Frequency stabilty
Any more folks?
Dave, G4DPZ
On 14 Nov 2018, at 20:36, Nader Omer via AMSAT-BB amsat-bb@amsat.org wrote:
Es’hail-2 geostationary satellite carrying AmateurRadio transponders expected to launch November 15 - 2018/11/05/
Most of the operators have no gears to covering the new frequencies.
So is it possible to put a down-converter and up-converter in one of the cubesat ??
Also the foot print will extend tremendously as the cubesat cover new distance far from all Es’hail fixed footprint ?!
Anyone’s can use V/U gears tracking the cubesat ,which really the signal from Es’hail sat!!
Again it’s a mind storm idea. I Hope others will share with more ideas and info !!
73’s Nader Omer St2nh
N-O-PH _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Hi Dave, Nader,
A CubeSat Converter is certainly an interesting thought. In addition to the challenges (that's the hip cop-out from saying "problem" these days) that you noted, I'm thinking that the ConverterSat would also:
Have to be in the footprint of Es'hail So as a converter even only in the footprint for stations in the footprint but w/o the S and X equipment, it would only offer a 10-20 minute window to Es'hail the usual 3-6 times per day In trying to extend the footprint, it would need to be of a pretty high altitude itself in order to extend the footprint by much Being on the edge of the Es'hail footprint in order to extend it, requires more power/gain/pointing to connect with Es'hail
But I guess these are more "usefulness" challenges than the RF challenges of acting as the converter you have listed. It gave me thoughts about GOLF-TEE trying to bridge the gap, but would have design implications as you noted that at least wouldn't be possible in our current timeline.
Jerry Buxton, NØJY
On 11/14/2018 15:34, David Johnson wrote:
Hi,
Interesting idea.
Problems to overcome:
Size of dish / patch required to be flown as part of satellite Attitude control and pointing in real time Power management Band width limitations Doppler correction Frequency stabilty
Any more folks?
Dave, G4DPZ
I would make more sense to me, in my humble unbiased opinion, to have someone in the footprint of Es'hail to put together a ground station that that is also an EchoLink node. That way, anyone in the world could potentially access Es'hail via EchoLink. It would be an interesting exercise, anyway.
73,
Mac Cody / AE5PH
On 11/14/18 6:37 PM, Jerry Buxton wrote:
Hi Dave, Nader, A CubeSat Converter is certainly an interesting thought. In addition to the challenges (that's the hip cop-out from saying "problem" these days) that you noted, I'm thinking that the ConverterSat would also: Have to be in the footprint of Es'hail So as a converter even only in the footprint for stations in the footprint but w/o the S and X equipment, it would only offer a 10-20 minute window to Es'hail the usual 3-6 times per day In trying to extend the footprint, it would need to be of a pretty high altitude itself in order to extend the footprint by much Being on the edge of the Es'hail footprint in order to extend it, requires more power/gain/pointing to connect with Es'hail But I guess these are more "usefulness" challenges than the RF challenges of acting as the converter you have listed. It gave me thoughts about GOLF-TEE trying to bridge the gap, but would have design implications as you noted that at least wouldn't be possible in our current timeline. Jerry Buxton, NØJY On 11/14/2018 15:34, David Johnson wrote:
Hi, Interesting idea. Problems to overcome: Size of dish / patch required to be flown as part of satellite Attitude control and pointing in real time Power management Band width limitations Doppler correction Frequency stabilty Any more folks? Dave, G4DPZ
_______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Hey Mac,
I like that very much! Let's do a SatNogs reverse. One or more station within the footprint that folks around the world can use to connect to Eshail.
Stefan
On Wed, Nov 14, 2018 at 7:32 PM Mac A. Cody maccody@att.net wrote:
I would make more sense to me, in my humble unbiased opinion, to have someone in the footprint of Es'hail to put together a ground station that that is also an EchoLink node. That way, anyone in the world could potentially access Es'hail via EchoLink. It would be an interesting exercise, anyway.
73,
Mac Cody / AE5PH
On 11/14/18 6:37 PM, Jerry Buxton wrote:
Hi Dave, Nader, A CubeSat Converter is certainly an interesting thought. In addition to the challenges (that's the hip cop-out from saying "problem" these days) that you noted, I'm thinking that the ConverterSat would also: Have to be in the footprint of Es'hail So as a converter even only in the footprint for stations in the footprint but w/o the S and X equipment, it would only offer a 10-20 minute window to Es'hail the usual 3-6 times per day In trying to extend the footprint, it would need to be of a pretty high altitude itself in order to extend the footprint by much Being on the edge of the Es'hail footprint in order to extend it, requires more power/gain/pointing to connect with Es'hail But I guess these are more "usefulness" challenges than the RF challenges of acting as the converter you have listed. It gave me thoughts about GOLF-TEE trying to bridge the gap, but would have design implications as you noted that at least wouldn't be possible in our current timeline. Jerry Buxton, NØJY On 11/14/2018 15:34, David Johnson wrote:
Hi, Interesting idea. Problems to overcome: Size of dish / patch required to be flown as part of satellite Attitude control and pointing in real time Power management Band width limitations Doppler correction Frequency stabilty Any more folks? Dave, G4DPZ
_______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
What would it cost to put together a ground station? Perhaps a little crowd sourcing (cash/hardware) could get one built and dedicated to the task.
Mac / AE5PH
On 11/14/18 7:57 PM, Stefan Wagener wrote:
Hey Mac,
I like that very much! Let's do a SatNogs reverse. One or more station within the footprint that folks around the world can use to connect to Eshail.
Stefan
On Wed, Nov 14, 2018 at 7:32 PM Mac A. Cody <maccody@att.net mailto:maccody@att.net> wrote:
I would make more sense to me, in my humble unbiased opinion, to have someone in the footprint of Es'hail to put together a ground station that that is also an EchoLink node. That way, anyone in the world could potentially access Es'hail via EchoLink. It would be an interesting exercise, anyway. 73, Mac Cody / AE5PH On 11/14/18 6:37 PM, Jerry Buxton wrote: > Hi Dave, Nader, A CubeSat Converter is certainly an interesting > thought. In addition to the challenges (that's the hip cop-out from > saying "problem" these days) that you noted, I'm thinking that the > ConverterSat would also: Have to be in the footprint of Es'hail So as > a converter even only in the footprint for stations in the footprint > but w/o the S and X equipment, it would only offer a 10-20 minute > window to Es'hail the usual 3-6 times per day In trying to extend the > footprint, it would need to be of a pretty high altitude itself in > order to extend the footprint by much Being on the edge of the Es'hail > footprint in order to extend it, requires more power/gain/pointing to > connect with Es'hail But I guess these are more "usefulness" > challenges than the RF challenges of acting as the converter you have > listed. It gave me thoughts about GOLF-TEE trying to bridge the gap, > but would have design implications as you noted that at least wouldn't > be possible in our current timeline. Jerry Buxton, NØJY On 11/14/2018 > 15:34, David Johnson wrote: >> Hi, Interesting idea. Problems to overcome: Size of dish / patch >> required to be flown as part of satellite Attitude control and >> pointing in real time Power management Band width limitations Doppler >> correction Frequency stabilty Any more folks? Dave, G4DPZ > _______________________________________________ Sent via > AMSAT-BB@amsat.org <mailto:AMSAT-BB@amsat.org>. AMSAT-NA makes this open forum available to all > interested persons worldwide without requiring membership. Opinions > expressed are solely those of the author, and do not reflect the > official views of AMSAT-NA. Not an AMSAT-NA member? Join now to > support the amateur satellite program! Subscription settings: > http://www.amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB@amsat.org <mailto:AMSAT-BB@amsat.org>. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Just a caution: You probably need to be licensed in the country you are transmitting from (or have reciprocal agreements with your own country or whatever). So for US users, we'd probably want to have the station in a CEPT country. And note that not all CEPT countries allow US Technician or General licencees to operate under CEPT. Good reason to get an Extra!
73,
Burns WB1FJ Who is not a lawyer of radio law or any other kind!
On Wed, Nov 14, 2018 at 11:14 PM Mac A. Cody maccody@att.net wrote:
What would it cost to put together a ground station? Perhaps a little crowd sourcing (cash/hardware) could get one built and dedicated to the task.
Mac / AE5PH
On 11/14/18 7:57 PM, Stefan Wagener wrote:
Hey Mac,
I like that very much! Let's do a SatNogs reverse. One or more station within the footprint that folks around the world can use to connect to Eshail.
Stefan
On Wed, Nov 14, 2018 at 7:32 PM Mac A. Cody <maccody@att.net mailto:maccody@att.net> wrote:
I would make more sense to me, in my humble unbiased opinion, to have someone in the footprint of Es'hail to put together a ground station that that is also an EchoLink node. That way, anyone in the world could potentially access Es'hail via EchoLink. It would be an interesting exercise, anyway. 73, Mac Cody / AE5PH On 11/14/18 6:37 PM, Jerry Buxton wrote: > Hi Dave, Nader, A CubeSat Converter is certainly an interesting > thought. In addition to the challenges (that's the hip cop-out from > saying "problem" these days) that you noted, I'm thinking that the > ConverterSat would also: Have to be in the footprint of Es'hail So as > a converter even only in the footprint for stations in the footprint > but w/o the S and X equipment, it would only offer a 10-20 minute > window to Es'hail the usual 3-6 times per day In trying to extend the > footprint, it would need to be of a pretty high altitude itself in > order to extend the footprint by much Being on the edge of the Es'hail > footprint in order to extend it, requires more power/gain/pointing to > connect with Es'hail But I guess these are more "usefulness" > challenges than the RF challenges of acting as the converter you have > listed. It gave me thoughts about GOLF-TEE trying to bridge the gap, > but would have design implications as you noted that at least wouldn't > be possible in our current timeline. Jerry Buxton, NØJY On 11/14/2018 > 15:34, David Johnson wrote: >> Hi, Interesting idea. Problems to overcome: Size of dish / patch >> required to be flown as part of satellite Attitude control and >> pointing in real time Power management Band width limitations Doppler >> correction Frequency stabilty Any more folks? Dave, G4DPZ > _______________________________________________ Sent via > AMSAT-BB@amsat.org <mailto:AMSAT-BB@amsat.org>. AMSAT-NA makes this open forum available to all > interested persons worldwide without requiring membership. Opinions > expressed are solely those of the author, and do not reflect the > official views of AMSAT-NA. Not an AMSAT-NA member? Join now to > support the amateur satellite program! Subscription settings: > http://www.amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB@amsat.org <mailto:AMSAT-BB@amsat.org>. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings:http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
It's also very, very questionable as to whether CEPT covers individuals who are not physically present in the country.
Additionally, I believe AMSAT-DL might have already said that a publicly accessible internet link was not going to be permitted, but I might be wrong about that.
Anyway, congrats to everyone involved in this project. Exciting times for amateur radio! For those in North America who are missing out, please join and support AMSAT to help us achieve a dream of a similar capability here!
https://www.amsat.org/join-amsat/
73,
Paul, N8HM On Thu, Nov 15, 2018 at 4:38 PM Burns Fisher burns@fisher.cc wrote:
Just a caution: You probably need to be licensed in the country you are transmitting from (or have reciprocal agreements with your own country or whatever). So for US users, we'd probably want to have the station in a CEPT country. And note that not all CEPT countries allow US Technician or General licencees to operate under CEPT. Good reason to get an Extra!
73,
Burns WB1FJ Who is not a lawyer of radio law or any other kind!
On Wed, Nov 14, 2018 at 11:14 PM Mac A. Cody maccody@att.net wrote:
What would it cost to put together a ground station? Perhaps a little crowd sourcing (cash/hardware) could get one built and dedicated to the task.
Mac / AE5PH
On 11/14/18 7:57 PM, Stefan Wagener wrote:
Hey Mac,
I like that very much! Let's do a SatNogs reverse. One or more station within the footprint that folks around the world can use to connect to Eshail.
Stefan
On Wed, Nov 14, 2018 at 7:32 PM Mac A. Cody <maccody@att.net mailto:maccody@att.net> wrote:
I would make more sense to me, in my humble unbiased opinion, to have someone in the footprint of Es'hail to put together a ground station that that is also an EchoLink node. That way, anyone in the world could potentially access Es'hail via EchoLink. It would be an interesting exercise, anyway. 73, Mac Cody / AE5PH On 11/14/18 6:37 PM, Jerry Buxton wrote: > Hi Dave, Nader, A CubeSat Converter is certainly an interesting > thought. In addition to the challenges (that's the hip cop-out from > saying "problem" these days) that you noted, I'm thinking that the > ConverterSat would also: Have to be in the footprint of Es'hail So as > a converter even only in the footprint for stations in the footprint > but w/o the S and X equipment, it would only offer a 10-20 minute > window to Es'hail the usual 3-6 times per day In trying to extend the > footprint, it would need to be of a pretty high altitude itself in > order to extend the footprint by much Being on the edge of the Es'hail > footprint in order to extend it, requires more power/gain/pointing to > connect with Es'hail But I guess these are more "usefulness" > challenges than the RF challenges of acting as the converter you have > listed. It gave me thoughts about GOLF-TEE trying to bridge the gap, > but would have design implications as you noted that at least wouldn't > be possible in our current timeline. Jerry Buxton, NØJY On 11/14/2018 > 15:34, David Johnson wrote: >> Hi, Interesting idea. Problems to overcome: Size of dish / patch >> required to be flown as part of satellite Attitude control and >> pointing in real time Power management Band width limitations Doppler >> correction Frequency stabilty Any more folks? Dave, G4DPZ > _______________________________________________ Sent via > AMSAT-BB@amsat.org <mailto:AMSAT-BB@amsat.org>. AMSAT-NA makes this open forum available to all > interested persons worldwide without requiring membership. Opinions > expressed are solely those of the author, and do not reflect the > official views of AMSAT-NA. Not an AMSAT-NA member? Join now to > support the amateur satellite program! Subscription settings: > http://www.amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB@amsat.org <mailto:AMSAT-BB@amsat.org>. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings:http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
participants (7)
-
Burns Fisher -
David Johnson -
Jerry Buxton -
Mac A. Cody -
Nader Omer -
Paul Stoetzer -
Stefan Wagener