Will each Sprite have it's own frequency?
Since these Sprites are operating in the Amateur satellite
bands, how will you license them? How will you handle the
frequency coordination of these transmitters?
The information that Zac and his team provided to AMSAT News Service in May,
2011
I asked a similar question on their website, the response was that the
sprites would all be on the same frequency. Their website says they will
operate between 433 and 436 MHz.
Jeff Moore -- KE7ACY
CN94
- Original Message -
From: JoAnne Maenpaa k9...@comcast.net
To: 'Bill Ress'
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
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...
George, KA3HSW
- Original Message
From: JoAnne Maenpaa k9...@comcast.net
To: Bill Ress
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
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
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
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
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
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
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 ka9...@wowway.com
To: AMSAT-BB@amsat.org
Subject: [amsat-bb] Geostationary Satellites
Hello Hope
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.
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
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
--- On Mon, 10/10/11, Tony Langdon vk3...@gmail.com 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
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
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
simple reason money money!! We should all pool our Visa cards and create
another AO-40 (sobsob).
73 Bob W7LRD
- Original Message -
From: ka9qjg ka9...@wowway.com
To: AMSAT-BB@amsat.org
Sent: Monday, October 10, 2011 2:23:20 PM
Subject: [amsat-bb] Geostationary Satellites
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
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
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
At 09:07 AM 10/11/2011, Trevor . wrote:
--- On Mon, 10/10/11, Tony Langdon vk3...@gmail.com 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,
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
On Mon, 10 Oct 2011 18:41:05 -0400
Tom Schaefer, NY4I n...@arrl.net wrote:
Seriously, you think it gets boring talking to us same guys on AO-51 each
day? Try that for a giant repeater in space.
Talking to the same guys would be nice, but it would never happen.
OLA! OHLA!
Numbers for just the cost of an Amateur payload, or numbers for the
whole satellite?
A 'typical' satellite costs from 150 million to 300 million, depending
on what hardware it carries.
The cost of a launch to Geosynchronous Transfer Orbit ranges from 95
million to 150 million depending on
Aaah Trevor, you raise another important issue!
It is the convention (I can't cite the international rules here) that
all communication/telemetry satellites have the ability to be commanded
off. Clearly the Sprites don't presently have that capability.
Additionally, I don't believe that just
All,
just my 2 cents: I think the project is rather interesting and I would be
willingly to sponsor it with my $300 (thats the number I've read to sponsor my
own personal sprite), if -
and thats a big if - I am able to receive and decode the signal with my average
equipped Oscar station.
I am 300million short and have no experience raising capital, but if (and I
guess there isn't any way for hams to raise 300mil), there was, I'd
volunteer to do as much as I could ...
Maybe that means soldering boards all night, or passing out a tin cup for
donations
but
Jamboree on the Air is the annual joint activity between Scouting and Ham
Radio. Held worldwide for 48 hours on October 15th and 16th. Many Amateur
Radio groups all over the world will be helping Scouts and Guides make
contacts via various modes and bands, including our satellites.
I will
On Oct 10, 2011, at 3:03 PM, Ken Ernandes wrote:
1. There are a finite number of orbital slots at Geostationary. That is
essentially like water front property.
I've heard that asserted before, but I question the reasoning.
My understanding is that spacing of satellites around the
What we need is Arsene or an Oscar IV in the correct orbit...Robert WB5MZO
Life member ARRL AMSAT NARS
Date: Mon, 10 Oct 2011 16:40:37 -0500
From: whit...@usa.net
To: ka9...@wowway.com; AMSAT-BB@amsat.org
Subject: [amsat-bb] Re: Geostationary Satellites
Short answer: Money. They are
There are radio considerations and then there are traffic considerations as
well...
The odds of amateur radio getting a dedicated geo bird in the belt are next to
nothing. a drifter (one above or below the belt) is more possible...and it
is a good orbit for hamsats...Robert G. Oler WB5MZO
hi, i know it is short notice but i have been asked to do a SAT demo during a
ham meeting tommarrow,
10-12-2011/ 0137z the only pass that lines up with that time is VO-52 i will be
around 145.910 USB
if possable give me a shout, i will be working portable from the rare DN71 grid
HI HI,
Rodney,
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