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CX2SA > SATDIG 20.09.13 05:46l 908 Lines 33159 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: The "Good Ole Days" are now (Rob)
2. FO29 N. Eu. (Bob- W7LRD)
3. Re: so long (Michael)
4. Re: The "Good Ole Days" are now (Andrew Glasbrenner)
5. Interorbital to launch 433 MHz Mexican Art Satellite (M5AKA)
6. Re: so long (Bryce Salmi)
7. Re: so long (Graham Shirville)
8. Re: Thought experiment ... Rockets and balloons (Tom Williams)
9. Re: The "Good Ole Days" are now (Pavel Milanes Costa)
10. Orbital Sciences Looks Ahead (B J)
11. Re: so long (John Stephensen)
12. Re: SO-50, IC-910H, and Sat PC32 Issues (Kevin M)
----------------------------------------------------------------------
Message: 1
Date: Thu, 19 Sep 2013 20:40:22 +0000
From: Rob <pabutusa@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: The "Good Ole Days" are now
Message-ID:
<CAE1O4xr4kwimCTB-zWAk7sMK7E1gYbSMPfCteJJ2r5EGNMWXnA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
I miss RS-6 and RS-8 .... sniff ....
On Thu, Sep 19, 2013 at 2:58 AM, Pavel Milanes Costa
<co7wt@xxxxxx.xx.xx>wrote:
> Amen, I second that motion...
>
> Third word hams who do not have 70cm rigs can work the sats more easily
> (70cm FM gear is very rare here, not to mention SSB)
>
> The 2m uplink is workable with transverters and HF multimode CAT capable
> rigs are almost ubiquitous for the 10m downlink
>
> 73
>
> El 18/09/13 17:48, Kevin Muenzler, WB5RUE escribi?:
>
>> I've been working sats off and on for many years. I must admit that I
>> haven't done much since RS-12/13 and RS-15 went silent. I believe that if
>> we had more "easy sats" with Mode VHF up and HF down they might be more
>> popular. Tuning and alignment weren't as critical.
>>
>> Just my two cents or so.
>>
>>
>> Kevin Muenzler, WB5RUE
>> Grid EL09uf
>> Eagle Creek Observatory
>>
http://www.**eaglecreekobservatory.org<http://www.eaglecreekobservatory.org>
>> I've stopped asking "How stupid can you be?" Some people are taking it
>> as a
>> challenge.
>>
>>
>>
>> -----Original Message-----
>> From: amsat-bb-bounces@xxxxx.xxx
[mailto:amsat-bb-bounces@xxxxxxx.xxx<xxxxxxxxxxxxxxxx@xxxxx.xxx>]
>> On
>> Behalf Of Les Rayburn
>> Sent: Wednesday, September 18, 2013 3:32 PM
>> To: amsat-bb@xxxxx.xxx
>> Subject: [amsat-bb] The "Good Ole Days" are now
>>
>> Like many hams (I suspect), I dreamed of working satellites for decades.
>> Followed them with at least a passing interest but always seemed to put
>> them
>> off till "someday". Even during the craze of the "work satellites with
>> your
>> handheld", I was distracted by other priorities. When I got involved in
>> VHF/UHF a few years ago, and purchased an Icom IC-910H, I kept thinking
>> I'd
>> finally pull the trigger. But years passed without anything other than
>> weak-signal contacts being made on that rig.
>>
>> A few months ago, I finally decided to give it a try. Downloaded SATPC32,
>> and updated my keps. FO-29 was the next satellite coming my way, so when I
>> was inside the footprint, I tuned around a bit, and found some stations
>> coming in. Cool! I was actually hearing hams on satellite---next up was
>> answering a CQ...nervously I pushed the PTT on the mic.
>>
>> 82 grids and a few hundred contacts later, I'm having a ball!
>>
>> I don't miss the birds that came before, but just enjoy what we have now.
>> My
>> only complaint might be that more folks are not active on F0-29 and VO-52.
>> Even SO-50 can be nearly empty after midnight.
>>
>> My understanding is that within the next year we'll have 2 or 3 more
>> linear
>> LEO satellites, and possibly another FM bird, right? While we may not
>> work a
>> lot of DX on those, we should get to the point where no one has to wait
>> long
>> for "something" to be overhead. That's exciting to me!
>>
>> AMSAT is staffed with wonderful volunteers, and seems to be doing great
>> work. I'm thrilled to be a member, even if it is #38965.
>>
>> The good ole days are now. Get on the birds and make some contacts. I need
>> your grid! (ha, ha)
>>
>>
>> ______________________________**_________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings:
http://amsat.org/mailman/**listinfo/amsat-bb<http://amsat.org/mailman/listinfo
/amsat-bb>
>
------------------------------
Message: 2
Date: Thu, 19 Sep 2013 20:49:37 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] FO29 N. Eu.
Message-ID:
<122538981.1853267.1379623777713.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
this one is a stretch.. 435.850 from CN87 max El. 2*
73 Bob W7LRD
------------------------------
Message: 3
Date: Thu, 19 Sep 2013 17:06:26 -0400
From: Michael <Mat_62@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: so long
Message-ID: <523B6752.2010905@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I said this a couple of weeks back but since reading all the responses
in this thread, I think I'll say it again. I'm almost fifty one years
old. I highly doubt that I will ever see an HEO bird launched in my
remaining lifetime. The economic realities of this day and time make the
possibility of a launch extremely remote and I don't see that changing
in the near future. I can't understand why AMSAT continues to string
people along with promises of "maybe someday if you donate". Why can't
they just be upfront about it and tell people, " Hey it aint going to
happen". There is absolutely nothing wrong with the new direction AMSAT
has taken in pursuing cubesat technology and launches, I applaud them
for it but the continued lip service to the " we want an HEO crowd"
gets old. I for one am not that gullible. Quit telling people what they
want to hear and tell them the truth.
73,
Michael, W4HIJ
On 9/17/2013 7:02 PM, i8cvs wrote:
> ----- Original Message -----
> From: "John Becker" <w0jab@xxxxxxxxx.xxx>
> To: <amsat-bb@xxxxx.xxx>
> Sent: Tuesday, September 17, 2013 8:58 PM
> Subject: [amsat-bb] so long
>
>> I have decided to leave the list till something changes with this FM
>> only satellite attitude only changes. That was the reason for me as
>> well as other joining AMSAT in the first place.
>>
>> Please inform me if anything such as a replacement for AO 40
>> happens.
>>
>> John
>>
> Hi John,W0JAB
>
> I was AMSAT member numbar 798 since OSCAR-6 but I decided
> to live my membership after AO40 died because AMSAT changed
> his policy with only FM satellites.
>
> I remember that OSCAR-10,OSCAR13 and AO40 where called
> "the satellites for all" and I invested a lot of money for equipments
> and antennas dedicated for HEO satellites for nothing in the near
> future.
>
> In my opinion the satellite operation is not only an activity to collect
> grids but it is mostly experimentation in the VHF/UHF/SHF and
> particularly into microwave as it was with AO40 Mode-S/K and
> it was very nice until lasted.
>
> As soon AMSAT-NA will work or cooperate with AMSAT-DL
> to built a new HEO satellite I will call Martha and I will pay all
> my old duties to cover my previous not covered years of
> membership.
>
> By the way I am not against AMSAT-NA because I understand
> the ITAR and during the last 10 years I have cooperate to write
> many technical articles for the AMSAT Journal without any
> money reward.
>
> If Martha says that the actual AMSAT members are in the order
> of 3,000. and if Les Rayburn, N1LF claim to be member of
> AMSAT #38965 it means that in the last 10 years many
> members abandoned AMSAT because of no future with no
> HEO satellites and only the FM LEO cubesat for no two
> ways communications between continents was not a
> satisfactory task.
>
> Many years ago early in 1972 I joined AMSAT because they
> promised us to communicate worlwide much better than using
> the HF but things changed and our antennas are becaming
> rusty over the roof for very small or for nothing........Sorry !
>
> 73" de i8CVS Domenico
>
>
> _______________________________________________
>
------------------------------
Message: 4
Date: Thu, 19 Sep 2013 17:39:16 -0400 (GMT-04:00)
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: Rob <pabutusa@xxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: The "Good Ole Days" are now
Message-ID:
<18490588.1379626757081.JavaMail.root@xxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
AO-7 is in Mode A every other day right now. You can operate AND be nostalgic!
73, Drew KO4MA
-----Original Message-----
>From: Rob <pabutusa@xxxxx.xxx>
>Sent: Sep 19, 2013 4:40 PM
>To: amsat-bb@xxxxx.xxx
>Subject: [amsat-bb] Re: The "Good Ole Days" are now
>
>I miss RS-6 and RS-8 .... sniff ....
>
>
>On Thu, Sep 19, 2013 at 2:58 AM, Pavel Milanes Costa
<co7wt@xxxxxx.xx.xx>wrote:
>
>> Amen, I second that motion...
>>
>> Third word hams who do not have 70cm rigs can work the sats more easily
>> (70cm FM gear is very rare here, not to mention SSB)
>>
>> The 2m uplink is workable with transverters and HF multimode CAT capable
>> rigs are almost ubiquitous for the 10m downlink
>>
>> 73
>>
>> El 18/09/13 17:48, Kevin Muenzler, WB5RUE escribi?:
>>
>>> I've been working sats off and on for many years. I must admit that I
>>> haven't done much since RS-12/13 and RS-15 went silent. I believe that if
>>> we had more "easy sats" with Mode VHF up and HF down they might be more
>>> popular. Tuning and alignment weren't as critical.
>>>
>>> Just my two cents or so.
>>>
>>>
>>> Kevin Muenzler, WB5RUE
>>> Grid EL09uf
>>> Eagle Creek Observatory
>>>
http://www.**eaglecreekobservatory.org<http://www.eaglecreekobservatory.org>
>>> I've stopped asking "How stupid can you be?" Some people are taking it
>>> as a
>>> challenge.
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: amsat-bb-bounces@xxxxx.xxx
[mailto:amsat-bb-bounces@xxxxxxx.xxx<xxxxxxxxxxxxxxxx@xxxxx.xxx>]
>>> On
>>> Behalf Of Les Rayburn
>>> Sent: Wednesday, September 18, 2013 3:32 PM
>>> To: amsat-bb@xxxxx.xxx
>>> Subject: [amsat-bb] The "Good Ole Days" are now
>>>
>>> Like many hams (I suspect), I dreamed of working satellites for decades.
>>> Followed them with at least a passing interest but always seemed to put
>>> them
>>> off till "someday". Even during the craze of the "work satellites with
>>> your
>>> handheld", I was distracted by other priorities. When I got involved in
>>> VHF/UHF a few years ago, and purchased an Icom IC-910H, I kept thinking
>>> I'd
>>> finally pull the trigger. But years passed without anything other than
>>> weak-signal contacts being made on that rig.
>>>
>>> A few months ago, I finally decided to give it a try. Downloaded SATPC32,
>>> and updated my keps. FO-29 was the next satellite coming my way, so when I
>>> was inside the footprint, I tuned around a bit, and found some stations
>>> coming in. Cool! I was actually hearing hams on satellite---next up was
>>> answering a CQ...nervously I pushed the PTT on the mic.
>>>
>>> 82 grids and a few hundred contacts later, I'm having a ball!
>>>
>>> I don't miss the birds that came before, but just enjoy what we have now.
>>> My
>>> only complaint might be that more folks are not active on F0-29 and VO-52.
>>> Even SO-50 can be nearly empty after midnight.
>>>
>>> My understanding is that within the next year we'll have 2 or 3 more
>>> linear
>>> LEO satellites, and possibly another FM bird, right? While we may not
>>> work a
>>> lot of DX on those, we should get to the point where no one has to wait
>>> long
>>> for "something" to be overhead. That's exciting to me!
>>>
>>> AMSAT is staffed with wonderful volunteers, and seems to be doing great
>>> work. I'm thrilled to be a member, even if it is #38965.
>>>
>>> The good ole days are now. Get on the birds and make some contacts. I need
>>> your grid! (ha, ha)
>>>
>>>
>>> ______________________________**_________________
>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings:
http://amsat.org/mailman/**listinfo/amsat-bb<http://amsat.org/mailman/listinfo
/amsat-bb>
>>
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>Not an AMSAT-NA member? Join now to support the amateur satellite program!
>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Thu, 19 Sep 2013 22:45:35 +0100 (BST)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Interorbital to launch 433 MHz Mexican Art
Satellite
Message-ID:
<1379627135.34319.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
According to an article the satellite Ulises1, which plans an Interorbital
launch, will transmit in the 433 MHz band (a license exempt allocation in
much of the world), see
http://www.gsb.stanford.edu/news/headlines/sergio-autrey-mixing-science-art-sa
tellite-business
Ulises1 website http://www.ulises1.mx/Ulises_1/Inicio.html
In Google English http://tinyurl.com/Ulises1-Satellite
73 Trevor M5AKA
----
------------------------------
Message: 6
Date: Thu, 19 Sep 2013 14:52:20 -0700
From: Bryce Salmi <bstguitarist@xxxxx.xxx>
To: Michael <Mat_62@xxxxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: so long
Message-ID:
<CAN5j0soAakgF3sUjGqEr4si7VcqtDpqt0WaPBa95EZp=OyZJ-g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
The truth is that from a monetary standpoint a 3U cubesat to HEO is likely
in the realm of being affordable. However, the technology available at this
time does not allow us to reliably make a HEO 3U cubesat but that doesn't
mean that years down the road we will get to that point. Look at computers,
they used to be the size of rooms now a computer much faster than some of
the first supercomputers fits in your pocket.
*This of course assumes that the launch industry remains the same with the
use of expendable vehicles.*
The launch industry at the moment is like buying a plane ticket and when
you get to your destination you scrap the airplane. It's wasteful and
costly. Vertical takeoff and vertical landing technology is on the fringe
of happening with companies like SpaceX (Disclaimer, I can't speak for
SpaceX this is personal opinion). Check out the Grasshopper divert
video<http://www.youtube.com/watch?v=2t15vP1PyoA>which shows the
Grasshopper test platform horizontally moving during
flight. The end goal is to land all stages of Falcon 9 back on
land<http://www.youtube.com/watch?v=sSF81yjVbJE>,
minimal refurbishment, refueling, and launch. Fuel costs are negligible
compared to the vehicle costs. While many near billion dollar satellites
may not mind spending a few hundred million dollars on a launch and forgo a
used vehicle (until reliability is proven) organizations like AMSAT would
likely jump on an opportunity of a low cost used rocket :D.
Low cost launches on reusable rockets will ideally be happening well within
your lifetime :D
Bryce
KB1LQC
On Thu, Sep 19, 2013 at 2:06 PM, Michael <Mat_62@xxxxxxx.xxx> wrote:
> I said this a couple of weeks back but since reading all the responses in
> this thread, I think I'll say it again. I'm almost fifty one years old. I
> highly doubt that I will ever see an HEO bird launched in my remaining
> lifetime. The economic realities of this day and time make the possibility
> of a launch extremely remote and I don't see that changing in the near
> future. I can't understand why AMSAT continues to string people along with
> promises of "maybe someday if you donate". Why can't they just be upfront
> about it and tell people, " Hey it aint going to happen". There is
> absolutely nothing wrong with the new direction AMSAT has taken in pursuing
> cubesat technology and launches, I applaud them for it but the continued
> lip service to the " we want an HEO crowd" gets old. I for one am not
> that gullible. Quit telling people what they want to hear and tell them the
> truth.
> 73,
> Michael, W4HIJ
>
> On 9/17/2013 7:02 PM, i8cvs wrote:
>
>> ----- Original Message -----
>> From: "John Becker" <w0jab@xxxxxxxxx.xxx>
>> To: <amsat-bb@xxxxx.xxx>
>> Sent: Tuesday, September 17, 2013 8:58 PM
>> Subject: [amsat-bb] so long
>>
>> I have decided to leave the list till something changes with this FM
>>> only satellite attitude only changes. That was the reason for me as
>>> well as other joining AMSAT in the first place.
>>>
>>> Please inform me if anything such as a replacement for AO 40
>>> happens.
>>>
>>> John
>>>
>>> Hi John,W0JAB
>>
>> I was AMSAT member numbar 798 since OSCAR-6 but I decided
>> to live my membership after AO40 died because AMSAT changed
>> his policy with only FM satellites.
>>
>> I remember that OSCAR-10,OSCAR13 and AO40 where called
>> "the satellites for all" and I invested a lot of money for equipments
>> and antennas dedicated for HEO satellites for nothing in the near
>> future.
>>
>> In my opinion the satellite operation is not only an activity to collect
>> grids but it is mostly experimentation in the VHF/UHF/SHF and
>> particularly into microwave as it was with AO40 Mode-S/K and
>> it was very nice until lasted.
>>
>> As soon AMSAT-NA will work or cooperate with AMSAT-DL
>> to built a new HEO satellite I will call Martha and I will pay all
>> my old duties to cover my previous not covered years of
>> membership.
>>
>> By the way I am not against AMSAT-NA because I understand
>> the ITAR and during the last 10 years I have cooperate to write
>> many technical articles for the AMSAT Journal without any
>> money reward.
>>
>> If Martha says that the actual AMSAT members are in the order
>> of 3,000. and if Les Rayburn, N1LF claim to be member of
>> AMSAT #38965 it means that in the last 10 years many
>> members abandoned AMSAT because of no future with no
>> HEO satellites and only the FM LEO cubesat for no two
>> ways communications between continents was not a
>> satisfactory task.
>>
>> Many years ago early in 1972 I joined AMSAT because they
>> promised us to communicate worlwide much better than using
>> the HF but things changed and our antennas are becaming
>> rusty over the roof for very small or for nothing........Sorry !
>>
>> 73" de i8CVS Domenico
>>
>>
>> ______________________________**_________________
>>
>>
> ______________________________**_________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings:
http://amsat.org/mailman/**listinfo/amsat-bb<http://amsat.org/mailman/listinfo
/amsat-bb>
>
------------------------------
Message: 7
Date: Fri, 20 Sep 2013 00:09:51 +0100
From: "Graham Shirville" <g.shirville@xxxxxxxxxx.xxx>
To: "Michael" <Mat_62@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: so long
Message-ID: <B4C75D5A0FE946DAA7A674D3882618FA@xxxxxxx.xxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
Hi Michael,
I think you are being pessimistic..I have done quite a few more orbits
around the sun than you but I expect that I will see another AMSAT supported
HEO/GTO (or similar) spacecraft launched in my lifetime. Probably more than
one! I have no particular inside knowledge just an understanding that almost
everything moves along in cycles rather than in linear progressions
73
Graham
G3VZV
-----Original Message-----
From: Michael
Sent: Thursday, September 19, 2013 10:06 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: so long
I said this a couple of weeks back but since reading all the responses
in this thread, I think I'll say it again. I'm almost fifty one years
old. I highly doubt that I will ever see an HEO bird launched in my
remaining lifetime. The economic realities of this day and time make the
possibility of a launch extremely remote and I don't see that changing
in the near future. I can't understand why AMSAT continues to string
people along with promises of "maybe someday if you donate". Why can't
they just be upfront about it and tell people, " Hey it aint going to
happen". There is absolutely nothing wrong with the new direction AMSAT
has taken in pursuing cubesat technology and launches, I applaud them
for it but the continued lip service to the " we want an HEO crowd"
gets old. I for one am not that gullible. Quit telling people what they
want to hear and tell them the truth.
73,
Michael, W4HIJ
On 9/17/2013 7:02 PM, i8cvs wrote:
> ----- Original Message -----
> From: "John Becker" <w0jab@xxxxxxxxx.xxx>
> To: <amsat-bb@xxxxx.xxx>
> Sent: Tuesday, September 17, 2013 8:58 PM
> Subject: [amsat-bb] so long
>
>> I have decided to leave the list till something changes with this FM
>> only satellite attitude only changes. That was the reason for me as
>> well as other joining AMSAT in the first place.
>>
>> Please inform me if anything such as a replacement for AO 40
>> happens.
>>
>> John
>>
> Hi John,W0JAB
>
> I was AMSAT member numbar 798 since OSCAR-6 but I decided
> to live my membership after AO40 died because AMSAT changed
> his policy with only FM satellites.
>
> I remember that OSCAR-10,OSCAR13 and AO40 where called
> "the satellites for all" and I invested a lot of money for equipments
> and antennas dedicated for HEO satellites for nothing in the near
> future.
>
> In my opinion the satellite operation is not only an activity to collect
> grids but it is mostly experimentation in the VHF/UHF/SHF and
> particularly into microwave as it was with AO40 Mode-S/K and
> it was very nice until lasted.
>
> As soon AMSAT-NA will work or cooperate with AMSAT-DL
> to built a new HEO satellite I will call Martha and I will pay all
> my old duties to cover my previous not covered years of
> membership.
>
> By the way I am not against AMSAT-NA because I understand
> the ITAR and during the last 10 years I have cooperate to write
> many technical articles for the AMSAT Journal without any
> money reward.
>
> If Martha says that the actual AMSAT members are in the order
> of 3,000. and if Les Rayburn, N1LF claim to be member of
> AMSAT #38965 it means that in the last 10 years many
> members abandoned AMSAT because of no future with no
> HEO satellites and only the FM LEO cubesat for no two
> ways communications between continents was not a
> satisfactory task.
>
> Many years ago early in 1972 I joined AMSAT because they
> promised us to communicate worlwide much better than using
> the HF but things changed and our antennas are becaming
> rusty over the roof for very small or for nothing........Sorry !
>
> 73" de i8CVS Domenico
>
>
> _______________________________________________
>
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 8
Date: Wed, 18 Sep 2013 20:19:58 -0400
From: Tom Williams <tdub20120@xxxxx.xxx>
To: Rob <pabutusa@xxxxx.xxx>
Cc: "AMSAT-BB@xxxxx.xxxx <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: Thought experiment ... Rockets and balloons
Message-ID: <DE3832F3-21FB-4370-B3B9-D5763317CDE1@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Easy to check to a first order estimate - just calculate total energy by
calculating payload mass raised to orbital height (potential energy) and
accelerated to orbital velocity (kinetic), then figure what fraction of that
is associated with raising the 37km fraction of the way.
Because of the v**2 term in the velocity, the height contribution probably
wouldn't be much.
Tom
On Sep 18, 2013, at 1:01 PM, Rob <pabutusa@xxxxx.xxx> wrote:
> I'm not a rocket scientist but I have an active imagination .....
>
> Thinking of a recent XKCD .... to achieve orbit .... the hard part isn't
> the altitude it's the velocity ....
>
> Would there be any advantage (cost effective) carrying a launch vehicle say
> to 37KM ... think Red Bull Stratos .... and firing the engines there???
>
> So you're already 37KM up .... there's a lot less atmospheric drag ....
>
> This would be like a drop from a plane ... but even higher ....
>
> Thoughts???
>
> de KA2PBT
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Thu, 19 Sep 2013 20:09:23 -0400
From: Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: The "Good Ole Days" are now
Message-ID: <523B9233.7020405@xxxxxx.xx.xx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Yes my friend...
A 2m to 10m full RX/TX transverter is building progress now on this
end... to work AO-7 and others to come...
I hope to finish it by the end of this year...
73 de CO7WT
El 19/09/13 17:39, Andrew Glasbrenner escribi?:
> AO-7 is in Mode A every other day right now. You can operate AND be
nostalgic!
>
> 73, Drew KO4MA
------------------------------
Message: 10
Date: Fri, 20 Sep 2013 01:49:20 +0000
From: B J <va6bmj@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Orbital Sciences Looks Ahead
Message-ID:
<CAP7QzkMvef0guF+Lkq4VAxsyAwhjnOrUU3Njn0jNwudp0SGf=g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
http://www.nasaspaceflight.com/2013/09/as-cygnus-heads-iss-orbital-eyeing-futu
re/
Meanwhile, another test firing for SpaceX's Falcon 9:
http://www.newspacejournal.com/2013/09/19/falcon-9-static-fire-clears-way-for-
late-september-launch/
Another test for Project Morpheus:
http://moonandback.com/2013/09/19/project-morpheus-tether-test-31/
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 11
Date: Fri, 20 Sep 2013 02:30:23 -0000
From: "John Stephensen" <kd6ozh@xxxxxxx.xxx>
To: "Michael" <Mat_62@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: so long
Message-ID: <4CDA970D181B4BB3A3C65138DAF6F898@xxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
AMSAT-NA abandoned the Eagle project years ago. Only AMSAT-DL has an
"active" HEO project. with P3E.
73,
John
KD6OZH
----- Original Message -----
From: "Michael" <Mat_62@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Thursday, September 19, 2013 21:06 UTC
Subject: [amsat-bb] Re: so long
>I said this a couple of weeks back but since reading all the responses in
>this thread, I think I'll say it again. I'm almost fifty one years old. I
>highly doubt that I will ever see an HEO bird launched in my remaining
>lifetime. The economic realities of this day and time make the possibility
>of a launch extremely remote and I don't see that changing in the near
>future. I can't understand why AMSAT continues to string people along with
>promises of "maybe someday if you donate". Why can't they just be upfront
>about it and tell people, " Hey it aint going to happen". There is
>absolutely nothing wrong with the new direction AMSAT has taken in pursuing
>cubesat technology and launches, I applaud them for it but the continued
>lip service to the " we want an HEO crowd" gets old. I for one am not
>that gullible. Quit telling people what they want to hear and tell them the
>truth.
> 73,
> Michael, W4HIJ
> On 9/17/2013 7:02 PM, i8cvs wrote:
>> ----- Original Message -----
>> From: "John Becker" <w0jab@xxxxxxxxx.xxx>
>> To: <amsat-bb@xxxxx.xxx>
>> Sent: Tuesday, September 17, 2013 8:58 PM
>> Subject: [amsat-bb] so long
>>
>>> I have decided to leave the list till something changes with this FM
>>> only satellite attitude only changes. That was the reason for me as
>>> well as other joining AMSAT in the first place.
>>>
>>> Please inform me if anything such as a replacement for AO 40
>>> happens.
>>>
>>> John
>>>
>> Hi John,W0JAB
>>
>> I was AMSAT member numbar 798 since OSCAR-6 but I decided
>> to live my membership after AO40 died because AMSAT changed
>> his policy with only FM satellites.
>>
>> I remember that OSCAR-10,OSCAR13 and AO40 where called
>> "the satellites for all" and I invested a lot of money for equipments
>> and antennas dedicated for HEO satellites for nothing in the near
>> future.
>>
>> In my opinion the satellite operation is not only an activity to collect
>> grids but it is mostly experimentation in the VHF/UHF/SHF and
>> particularly into microwave as it was with AO40 Mode-S/K and
>> it was very nice until lasted.
>>
>> As soon AMSAT-NA will work or cooperate with AMSAT-DL
>> to built a new HEO satellite I will call Martha and I will pay all
>> my old duties to cover my previous not covered years of
>> membership.
>>
>> By the way I am not against AMSAT-NA because I understand
>> the ITAR and during the last 10 years I have cooperate to write
>> many technical articles for the AMSAT Journal without any
>> money reward.
>>
>> If Martha says that the actual AMSAT members are in the order
>> of 3,000. and if Les Rayburn, N1LF claim to be member of
>> AMSAT #38965 it means that in the last 10 years many
>> members abandoned AMSAT because of no future with no
>> HEO satellites and only the FM LEO cubesat for no two
>> ways communications between continents was not a
>> satisfactory task.
>>
>> Many years ago early in 1972 I joined AMSAT because they
>> promised us to communicate worlwide much better than using
>> the HF but things changed and our antennas are becaming
>> rusty over the roof for very small or for nothing........Sorry !
>>
>> 73" de i8CVS Domenico
>>
>>
>> _______________________________________________
>>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 12
Date: Thu, 19 Sep 2013 20:31:11 -0700 (PDT)
From: Kevin M <n4ufo@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Cc: "les@xxxxxxxxxxxx.xxxx <les@xxxxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: SO-50, IC-910H, and Sat PC32 Issues
Message-ID:
<1379647871.24600.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Adding to Drew's comments...
A.) Reception is poor. Especially high elevation passes.
?Yep I hear SO-50 better with an IO antenna mounted on my HT sitting
?in the shack than with my fixed elevation yagis mounted outside
?when the bird is overhead. I can twist and turn the HT to match the bird
E.) I can only rarely hear my own downlink on this satellite, even in
the middle of the night when the bird is empty.
F.) Numerous reports of others calling me without success, even though
I'm getting into the bird fine.
If it is just yourself you cannot hear then your 2m transmit is likely
wiping out your 436 receive. (The third harmonic of the transmit is 437.55)
You might try adding some filtering. Look at using a? 2m/440 diplexer on one
or the other side. (or both) Better yet, try backing power down to 5 watts
and see if you don't hear yourself better. But it more sounds like you just
have a general receive problem...? the cable between the antenna and the
preamp can matter. Like I said, I hear better with an HT mounted antenna. If
I were to add even a couple feet of coax between the HT and antenna, that
would change.
As for fading... SO-50 is in a slow tumble.? I will lose the bird for a
minute and then it comes strong for a minute... then it fades again for a
minute. If there is a station I want to work, I have to hope I can get a
chance to call when the bird is strong to me. But if I call when the bird is
weak, I will still be heard by others... SO-50 'hears' quite well, even if
you don't hear it.
Best go back to basics... build yourself a 'CJU' antenna (contact me off
list and I can send you a link to plans a pic of mine; some 12 gauge solid
copper, a piece of pex pipe and a short piece of coax with a BNC) and try
listening with a handheld. As I say, on overhead passes, I have to turn on
the HT and listen that way until it gets to the 'other side'. So what you
are finding is fairly normal... Simply put, SO-50 is not easy to work with
fixed elevation antennas.
73? Kevin N4UFO
------------------------------------------------------------------
"Control is the need of the fearful mind. Trust is the need of the
courageous heart."
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 8, Issue 319
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