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CX2SA > SATDIG 11.10.11 01:12l 848 Lines 26486 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: KickSat - a personal spacecraft of your own in space
(Howie DeFelice)
2. Am-Comm Clear Speech Base DSP Filter For Sale (Alan P. Biddle)
3. Geostationary Satellites (ka9qjg)
4. Re: KickSat - a personal spacecraft of your own in space
(Tony Langdon)
5. Re: Geostationary Satellites (Lowell White)
6. Re: Geostationary Satellites (Alan P. Biddle)
7. Re: Geostationary Satellites (Lynn W. Deffenbaugh (Mr))
8. Re: Geostationary Satellites (Ken Ernandes)
9. Re: KickSat - a personal spacecraft of your own in space
(Trevor .)
10. Geostationary Satellites (ka9qjg)
11. for sale (Dads)
12. Re: Geostationary Satellites (Bob- W7LRD)
13. Re: Geostationary Satellites (jmfranke)
14. Re: Geostationary Satellites (Tom Schaefer, NY4I)
15. Re: SRMSAT Keps and Down Link Details (Dinesh Cyanam)
16. Re: Geostationary Satellites (Tony Langdon)
17. Re: KickSat - a personal spacecraft of your own in space
(Tony Langdon)
----------------------------------------------------------------------
Message: 1
Date: Mon, 10 Oct 2011 16:11:50 -0400
From: Howie DeFelice <howied231@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: KickSat - a personal spacecraft of your own in
space
Message-ID: <BLU157-W1879EB44B4AE0EE0B9E904E7FD0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I had several email exchanges with Zac earlier in the year when the call
went out for Amateur involvement. I was trying to get enough information to
attempt to put together a hardware decoder for the spread spectrum signal.
The Cornell team seemed only interested in having hams send in data files of
broadband collections from a USRP radio. While these receivers are very
common in educational and commercial labs, they are not that common in ham
shacks. In my opinion, if the Cornell team wants to generate interest inside
the ham community, they need better information on the typical capabilities
of the average operator. The greater the appeal, the more support they will
get.
HowieAB2S
------------------------------
Message: 2
Date: Mon, 10 Oct 2011 15:32:43 -0500
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Am-Comm Clear Speech Base DSP Filter For Sale
Message-ID: <FD867B5012AE4C729EE0E61B1906624A@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
I am doing some shack cleaning.
This unit was originally sold by Am-Comm. Since then, the basic electronics
have been repackaged, sometimes combined with a speaker, and sold by various
companies. My experience is that most of the time it is amazing, though
rarely it does very little. The exact improvement depends on the signal,
type of noise, levels, etc. It made the difference on AO-40 around apogee.
http://www.eham.net/reviews/detail/1041
Currently West Mountain Radio is selling a similar unit, with an adjustable
threshold added:
http://www.westmountainradio.com/product_info.php?products_id=clr_dsp
The unit is perfect mechanically and electrically. $80 including shipping
in North America.
Please contact me off list.
Alan
WA4SCA
------------------------------
Message: 3
Date: Mon, 10 Oct 2011 16:23:20 -0500
From: "ka9qjg" <ka9qjg@xxxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Geostationary Satellites
Message-ID: <004f01cc8792$d58e9cd0$80abd670$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hello Hope Everyone is doing Well, I know people say no such thing as a dumb
question So here goes What is the reason We do not have any Type of
geostationary Satellites. Is it because they are for World Wide Use and If
stationary one could Hit it 24/7 and Maybe park there butt on it and Run a
Beam and Amp and take it over
Thanks
73 De Don KA9QJG
------------------------------
Message: 4
Date: Tue, 11 Oct 2011 08:38:34 +1100
From: Tony Langdon <vk3jed@xxxxx.xxx>
To: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>, "'AMSAT'"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: KickSat - a personal spacecraft of your own in
space
Message-ID: <4e9365e5.0f1a340a.1168.7690@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 05:49 AM 10/11/2011, JoAnne Maenpaa wrote:
>Hi George,
>
> > Someone correct me if I'm wrong, but isn't 900 MHz only allocated
> > for terrestrial use, worldwide? I know that there's no amateur
> > satellite service allocation at 902 MHz...
>
>The original Cornell Chipsat mission news release that mentioned they were
>using 902 MHz was not an amateur radio mission. Not sure what other radio
>service they qualified for. Cornell hoped that some "suitably equipped"
>amateur earth stations would receive their signals, hence their request.
Still seems a strange choice of frequency, given that GSM phones use
these frequencies in many parts of the world.
73 de VK3JED / VK3IRL
http://vkradio.com
------------------------------
Message: 5
Date: Mon, 10 Oct 2011 16:40:37 -0500
From: "Lowell White" <whiteld@xxx.xxx>
To: "ka9qjg" <ka9qjg@xxxxxx.xxx>, <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: Geostationary Satellites
Message-ID: <568PJJVnl0032S03.1318282837@xxxxx.xxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Short answer: Money. They are much more expensive than the little LEO's,
CubeSat's, etc.
73,
Lowell
K9LDW
------ Original Message ------
Received: Mon, 10 Oct 2011 04:27:53 PM CDT
From: "ka9qjg" <ka9qjg@xxxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Geostationary Satellites
> Hello Hope Everyone is doing Well, I know people say no such thing as a
dumb
> question So here goes What is the reason We do not have any Type of
> geostationary Satellites. Is it because they are for World Wide Use and If
> stationary one could Hit it 24/7 and Maybe park there butt on it and Run a
> Beam and Amp and take it over
>
>
>
> Thanks
>
>
>
> 73 De Don KA9QJG
>
>
>
> _______________________________________________
> 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: 6
Date: Mon, 10 Oct 2011 16:50:09 -0500
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Geostationary Satellites
Message-ID: <8C3DED58D95740AD9E7783AB1B3E92CF@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Don,
Cost, which is enough to drop any other issues to noise level. That is the
High Rent District, and given how much the commercial users pay, they would
not want to have an "amateur" satellite wandering around. More practically,
it would be nice to have a package on a commercial satellite. They provide
the power, pointing, and control. We just provide the RF. Again, cost,
though we have been looking for the right opportunity.
Another drawback is that a geosynch only provides coverage to _about_ a
third of the earth, and it is always the same third. Birds like AO-13 and
AO-40 covered just about all of it over the space of a few days. Did I
mention cost? It is fun to think about having 3 which could be linked for
true global coverage.
Alan
WA4SCA
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of ka9qjg
Sent: Monday, October 10, 2011 4:23 PM
To: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Geostationary Satellites
Hello Hope Everyone is doing Well, I know people say no such thing as a dumb
question So here goes What is the reason We do not have any Type of
geostationary Satellites. Is it because they are for World Wide Use and If
stationary one could Hit it 24/7 and Maybe park there butt on it and Run a
Beam and Amp and take it over
Thanks
73 De Don KA9QJG
_______________________________________________
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: 7
Date: Mon, 10 Oct 2011 17:51:09 -0400
From: "Lynn W. Deffenbaugh (Mr)" <ldeffenb@xxxxxxxx.xx>
To: ka9qjg <ka9qjg@xxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: Geostationary Satellites
Message-ID: <4E9368CD.4040600@xxxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Just a novice guess here, but aren't the geostationary orbits MUCH
higher than our satellites run? And therefore cost a lot more to get
boosted to that orbit?
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
(Which has soon-to-be-released internal satellite tracking)
On 10/10/2011 5:23 PM, ka9qjg wrote:
> Hello Hope Everyone is doing Well, I know people say no such thing as a dumb
> question So here goes What is the reason We do not have any Type of
> geostationary Satellites. Is it because they are for World Wide Use and If
> stationary one could Hit it 24/7 and Maybe park there butt on it and Run a
> Beam and Amp and take it over
>
>
>
> Thanks
>
>
>
> 73 De Don KA9QJG
>
>
>
> _______________________________________________
> 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: Mon, 10 Oct 2011 18:03:10 -0400
From: Ken Ernandes <n2wwd@xxxxxxxxxx.xxx>
To: ka9qjg <ka9qjg@xxxxxx.xxx>
Cc: "<AMSAT-BB@xxxxx.xxx>" <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: Geostationary Satellites
Message-ID: <0579CD32-7D68-4ACA-9F2D-F8E7F80C88FB@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
A few reasons:
1. There are a finite number of orbital slots at Geostationary. That is
essentially like water front property.
2. The satellite's footprint is less than half the Earth, all the time; the
same half of the Earth all the time.
3. Those at northern latitudes will always have low elevation angles.
4. A lot of propellant (spacecraft weight) is needed to boost from a
transfer to a GEO orbit.
5. A significant amount of additional propellant would also need to be
allocated for station-keeping maneuvers to maintain that fixed antenna
pointing direction.
6. Because of the fixed footprint, there is less variety of stations
available to communicate with (a corollary to #1).
All factors considered, the number of operators willing to contribute is
severely diminished versus that of a satellite in a molyniya type orbit.
These fewer contributors would need to pay for a project that is far more
expensive than a Phase 3 program. The bottom line: the benefit of the fixed
antenna is outweighed by the negative factors, first and foremost being cost.
I hope this helps.
73, Ken Ernandes N2WWD
Sent from my iPad
On Oct 10, 2011, at 5:23 PM, "ka9qjg" <ka9qjg@xxxxxx.xxx> wrote:
> Hello Hope Everyone is doing Well, I know people say no such thing as a dumb
> question So here goes What is the reason We do not have any Type of
> geostationary Satellites. Is it because they are for World Wide Use and If
> stationary one could Hit it 24/7 and Maybe park there butt on it and Run a
> Beam and Amp and take it over
>
>
>
> Thanks
>
>
>
> 73 De Don KA9QJG
>
>
>
> _______________________________________________
> 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: Mon, 10 Oct 2011 23:07:18 +0100 (BST)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: JoAnne Maenpaa <k9jkm@xxxxxxx.xxx>, "'AMSAT'"
<amsat-bb@xxxxx.xxx>, Tony Langdon <vk3jed@xxxxx.xxx>
Subject: [amsat-bb] Re: KickSat - a personal spacecraft of your own in
space
Message-ID:
<1318284438.10267.YahooMailClassic@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
--- On Mon, 10/10/11, Tony Langdon <vk3jed@xxxxx.xxx> wrote:
> Still seems a strange choice of frequency, given that GSM
> phones use these frequencies in many parts of the world.
ITU Region 1 seems to be moving closer to permitting unlicensed low power
use, RFID etc, around 915-921 MHz but as you say the rest is mobile phones.
Given there is no mechanism to command these Sprite ChipSats so they are
only on over the USA the use of 902 MHz would seem inapropriate.
73 Trevor M5AKA
------------------------------
Message: 10
Date: Mon, 10 Oct 2011 17:17:25 -0500
From: "ka9qjg" <ka9qjg@xxxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Geostationary Satellites
Message-ID: <007f01cc879a$63b4d310$2b1e7930$@xxx>
Content-Type: text/plain; charset="us-ascii"
Thanks for all the Fast answers I "am glad it was NOT for the reasons I
have been hearing for 40 Yrs , That Some Ham radio Operators Would Fig out
a Way to be the Biggest and Baddest on the Bird and the ones on it all the
time and not sharing with others , Everyone knows the Type
Thanks Again
Don KA9QJG
Yrs ago I had a 8ft C/KU Band System It was fun searching the Skies
------------------------------
Message: 11
Date: Mon, 10 Oct 2011 17:19:11 -0500
From: "Dads" <w0sat@xxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] for sale
Message-ID: <SNT125-DS7C54C7223DC6116EC0804E4FD0@xxx.xxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I have for sale a elevation and Azimuth controller
Model KR-5600A
Which is compatible to a 5400
It has a problem though.
The elevation works 100 percent
The Azimuth doesn,t turn my rotor
I consider this a tech special
I will sell it as is for $75.00 plus shipping in CONUS
payment by US postal money order.
Jerry w0sat
------------------------------
Message: 12
Date: Mon, 10 Oct 2011 22:24:32 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
To: ka9qjg <ka9qjg@xxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: Geostationary Satellites
Message-ID:
<1542412529.458537.1318285472299.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
simple reason money money!!? We? should all pool our Visa cards and create
another AO-40 (sobsob).
73 Bob W7LRD
----- Original Message -----
From: "ka9qjg" <ka9qjg@xxxxxx.xxx>
To: AMSAT-BB@xxxxx.xxx
Sent: Monday, October 10, 2011 2:23:20 PM
Subject: [amsat-bb] Geostationary Satellites
Hello Hope Everyone is doing Well, I know people say no such thing as a dumb
question So here goes What is the reason We do not have any Type of
geostationary Satellites. Is it because they are for World Wide Use and If
stationary one could Hit it 24/7 and Maybe park there butt on it and Run a
Beam and Amp and take it over
?
Thanks
?
73 De Don KA9QJG
?
_______________________________________________
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: 13
Date: Mon, 10 Oct 2011 18:35:06 -0400
From: "jmfranke" <jmfranke@xxx.xxx>
To: <APBIDDLE@xxxxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Geostationary Satellites
Message-ID: <2414CD4C663F4661BA45EB3FA831767C@xxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
There is also the issue that the commercial operator wants the Earth facing
side of the satellite for their antennas. It is hard to find room for
amateur band antennas. We ran into this problem while trying to get NASA
payloads a ride on commercial satellites.
John WA4WDL
--------------------------------------------------
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Sent: Monday, October 10, 2011 5:50 PM
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Geostationary Satellites
> Don,
>
> Cost, which is enough to drop any other issues to noise level. That is
> the
> High Rent District, and given how much the commercial users pay, they
> would
> not want to have an "amateur" satellite wandering around. More
> practically,
> it would be nice to have a package on a commercial satellite. They
> provide
> the power, pointing, and control. We just provide the RF. Again, cost,
> though we have been looking for the right opportunity.
>
> Another drawback is that a geosynch only provides coverage to _about_ a
> third of the earth, and it is always the same third. Birds like AO-13 and
> AO-40 covered just about all of it over the space of a few days. Did I
> mention cost? It is fun to think about having 3 which could be linked for
> true global coverage.
>
> Alan
> WA4SCA
>
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of ka9qjg
> Sent: Monday, October 10, 2011 4:23 PM
> To: AMSAT-BB@xxxxx.xxx
> Subject: [amsat-bb] Geostationary Satellites
>
> Hello Hope Everyone is doing Well, I know people say no such thing as a
> dumb
> question So here goes What is the reason We do not have any Type of
> geostationary Satellites. Is it because they are for World Wide Use and If
> stationary one could Hit it 24/7 and Maybe park there butt on it and Run a
> Beam and Amp and take it over
>
>
>
> Thanks
>
>
>
> 73 De Don KA9QJG
>
>
>
> _______________________________________________
> 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
>
>
> _______________________________________________
> 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: 14
Date: Mon, 10 Oct 2011 18:41:05 -0400
From: "Tom Schaefer, NY4I" <ny4i@xxxx.xxx>
To: APBIDDLE@xxxxxxx.xxx
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Geostationary Satellites
Message-ID: <439481AE-BBCE-477B-9F87-B4BF838C2194@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Has anyone run the numbers? Are we talking 20 million, 100 million?
Let's see, there are at best 5000 satellite ops. So, if it cost $20,000,000
we are each in it for $4000. I'm game. Now to convince 4999 of my friends. :)
Seriously, you think it gets boring talking to us same guys on AO-51 each
day? Try that for a giant repeater in space. That would be wide area. I know
we hear that something like P3D would just cost too much, but this is a lot
of dough to talk to friends across the country at drive time. The wider
orbits make for more interesting conversations. Not that I don;t want to
talk to you every day :)
Tom
Tom Schaefer, NY4I
ny4i@xxxx.xxx
EL88pb
Monitoring EchoLink node KJ4FEC-L 489389
DSTAR Capable APRS: NY4I-15
On Oct 10, 2011, at 5:50 PM, Alan P. Biddle wrote:
> Don,
>
> Cost, which is enough to drop any other issues to noise level. That is the
> High Rent District, and given how much the commercial users pay, they would
> not want to have an "amateur" satellite wandering around. More practically,
> it would be nice to have a package on a commercial satellite. They provide
> the power, pointing, and control. We just provide the RF. Again, cost,
> though we have been looking for the right opportunity.
>
> Another drawback is that a geosynch only provides coverage to _about_ a
> third of the earth, and it is always the same third. Birds like AO-13 and
> AO-40 covered just about all of it over the space of a few days. Did I
> mention cost? It is fun to think about having 3 which could be linked for
> true global coverage.
>
> Alan
> WA4SCA
>
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of ka9qjg
> Sent: Monday, October 10, 2011 4:23 PM
> To: AMSAT-BB@xxxxx.xxx
> Subject: [amsat-bb] Geostationary Satellites
>
> Hello Hope Everyone is doing Well, I know people say no such thing as a dumb
> question So here goes What is the reason We do not have any Type of
> geostationary Satellites. Is it because they are for World Wide Use and If
> stationary one could Hit it 24/7 and Maybe park there butt on it and Run a
> Beam and Amp and take it over
>
>
>
> Thanks
>
>
>
> 73 De Don KA9QJG
>
>
>
> _______________________________________________
> 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
>
>
> _______________________________________________
> 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: 15
Date: Mon, 10 Oct 2011 18:49:31 -0400
From: Dinesh Cyanam <dinesh@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: SRMSAT Keps and Down Link Details
Message-ID: <FE894CF2-C312-42FB-B846-B4FC4A6E3485@xxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
Hi Drew,
Thank you for your wishes?
Well it is a Nanosat. Shouldn't have called it a cubesat? my bad?
As far as I am know, there is no possibility of a secondary communications
mission. I have graduated from the University so the information I have is
kind of limited. They have asked me and other Ham radio operators to track
the satellite. Hence, I have posted it here. Will let you you if I hear
anything about a secondary communications mission.
Also, Pete, WB2OQQ, reported that he was not able to load the TLEs into his
tracking program. I believe the email system has reformatted the keps. So
now the keps can be downloaded from here:
http://dinesh.cyanam.net/dl/SRMSAT_TLEs.txt
73
Dinesh
KC2YQJ
> ------------------------------
>
> Message: 8
> Date: Mon, 10 Oct 2011 14:36:51 -0400 (GMT-04:00)
> From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
> To: Dinesh Cyanam <dinesh@xxxxxx.xxx>, amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Re: SRMSAT Keps and Down Link Details
> Message-ID:
> <5265569.1318271811579.JavaMail.root@xxxxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
>
> Content-Type: text/plain; charset=UTF-8
>
> Hi Dinesh,
>
> Is this a cubesat, or a microsat? The webpage indicates it is
286mmx286mmx294mm and 10kg, which is more the size of AO-51 than a 100mm^3
cubesat.
>
> Is there any possibility of a secondary amateur communications mission?
>
> Good Luck with the launch.
>
> 73, Drew KO4MA
>
>
> -----Original Message-----
>> From: Dinesh Cyanam <dinesh@xxxxxx.xxx>
>> Sent: Oct 10, 2011 1:43 PM
>> To: amsat-bb@xxxxx.xxx
>> Subject: [amsat-bb] SRMSAT Keps and Down Link Details
>>
>> SRMSAT, A cubesat developed by the students of SRM University, India will
be launched on October 12th, 2011 along with the Megha Tropique satellite on
the PSLV-C18 launch vehicle from ISRO's spaceport in Sriharikota, India.
>>
>> Payload Details:
>> SRMSAT will monitor the green house gases in near infrared region (900nm
- 1700nm).
>>
>> Launch Date and Time:
>> October 12, 2011
>> 0530 hrs UTC
>>
>> Telemetry down link and CW beacon on the same frequency: 437.425 MHz (10
dbm)
>> (Telemetry decoding info will be posted soon)
>>
>> Preliminary TLEs from ISTRAC (ISRO Telemetry, Tracking and Command
Network):
>> SRM
>> 1 99999U 11072A 11278.34967500 .00001077 00000-0 60876-3 0 1233
>> 2 99999 20.0603 97.4017 0010015 338.6461 208.4324 14.09199968 14
>>
>> Website: http://srmsat.in
>>
>> All Radio Amateurs are requested to track SRMSAT and provide us with the
reception reports via AMSAT-BB mailing list or via email to KC2YQJ <at>
arrl.net
>>
>> 73
>> KC2YQJ
>> Dinesh Cyanam
>>
>>
------------------------------
Message: 16
Date: Tue, 11 Oct 2011 09:57:01 +1100
From: Tony Langdon <vk3jed@xxxxx.xxx>
To: "Lynn W. Deffenbaugh (Mr)" <ldeffenb@xxxxxxxx.xx>, ka9qjg
<ka9qjg@xxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: Geostationary Satellites
Message-ID: <4e937847.ea5d340a.3f04.fffff5e3@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 08:51 AM 10/11/2011, Lynn W. Deffenbaugh (Mr) wrote:
>Just a novice guess here, but aren't the geostationary orbits MUCH
>higher than our satellites run? And therefore cost a lot more to
>get boosted to that orbit?
Got it in one, that's the main reason we don't have any geostationary
ham satellites, along with the need to have 3 for global coverage.
73 de VK3JED / VK3IRL
http://vkradio.com
------------------------------
Message: 17
Date: Tue, 11 Oct 2011 09:59:04 +1100
From: Tony Langdon <vk3jed@xxxxx.xxx>
To: "Trevor ." <m5aka@xxxxx.xx.xx>, JoAnne Maenpaa
<k9jkm@xxxxxxx.xxx>, "'AMSAT'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: KickSat - a personal spacecraft of your own in
space
Message-ID: <4e9378c3.d1ac340a.60e1.3fad@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 09:07 AM 10/11/2011, Trevor . wrote:
>--- On Mon, 10/10/11, Tony Langdon <vk3jed@xxxxx.xxx> wrote: > Still
>seems a strange choice of frequency, given that GSM > phones use
>these frequencies in many parts of the world. ITU Region 1 seems to
>be moving closer to permitting unlicensed low power use, RFID etc,
>around 915-921 MHz but as you say the rest is mobile phones. Given
>there is no mechanism to command these Sprite ChipSats so they are
>only on over the USA the use of 902 MHz would seem inapropriate. 73
>Trevor M5AKA
Australia has allowed unlicenced low power devices in the range above
915 MHz for some time, and they seem to coexist with GSM phones "next door".
73 de VK3JED / VK3IRL
http://vkradio.com
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
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End of AMSAT-BB Digest, Vol 6, Issue 560
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