Do we know which callsigns were sent out over CW? There's a limited set
of 32 CW Ids that are sent when the SD card is not available. Also, did
we get any of the stock SSTV images?
Are we still seeing this? I pulled the one of the latest STP files
(201108182126711), and it's indicating that
hi, thank you for the offer on the amsat-bb,
i would really like to work you
but we would have to stretch AO-7's foot print out to 9162 km's
i hope some day we will have such a satellite?
best regards
kc0zhf DN-71
WY Amsat area coordinator
___
Sent via AM
You don't have to use a narrow beam antenna with maximum gain on axis.
You can always design it with a bowl-shaped pattern that increases gain
toward the edges and lowers it in the middle.
That's why the quadrifilars work so well. I measured the pattern some
time back, and the "beam width" i
On 8/18/11 10:31 PM, Dave Guimont wrote:
> That's why the quadrifilars work so well. I measured the pattern some
> time back, and the "beam width" is about 140 degrees
Yes, something with that kind of beamwidth would be ideal on the
nadir-facing surface of a stabilized satellite in low earth
You don't have to use a narrow beam antenna with maximum gain on axis.
You can always design it with a bowl-shaped pattern that increases gain
toward the edges and lowers it in the middle.
That's why the quadrifilars work so well. I measured the pattern some
time back, and the "beam width" i
Ok, 04:01z pass over CM98 in Northern Calif... Max elevation 15.6 degrees,
> to the North North West.
>
> This was followed by 2 min of silence, and English spoken announcement (not
> sure which variety of English), some children chanting, and another break
> for silence. The pass ended wi
Hi Gould,
Ok, 04:01z pass over CM98 in Northern Calif... Max elevation 15.6 degrees, to
the North North West.
Pass started with a foreign voice (Russian, I think). Then there was a USA
welcome message (with the USA Secret Word), and an SSTV image. Not sure which
one, as there was too much
On 8/18/11 6:59 AM, Alan P. Biddle wrote:
> Ron,
>
> That behavior is common around TCA, Time of Closest Approach. At that time
> everything is changing rapidly, and slight errors in QTH position, system
> clock, and Keps can be magnified.
As everybody knows, even tiny errors in the Keplerian m
On 8/18/11 11:03 AM, JoAnne Maenpaa wrote:
> Yeah, we still have dreams! At various times it had been called AMSAT-Eagle,
> Phase IV Lite, C-C Rider, and other things. You'll notice from the dates on
> these papers how long we've had this dream of a millions dollar rideshare
> with a millions doll
Hmmh, interesting. The 02:30z pass this evening over CM98 sounded like normal
low power mode. Female announcement, switched to foreign language (sounded
German), SSTV picture (canned), few minutes of silence, then more talking, then
silence to LOS. No voice telemetry, and I'm not set up to r
On 8/17/11 5:29 PM, Mike Schaffer wrote:
> What is the official AMSAT/ARISSat1 team finding on the ARISSat-1 70cm
> quarter-wave
> receive antenna on the bottom of the satellite? I have not heard updated news
> about that
> since the jettison occurred.
As far as I know, and this is *NOT* the o
On 8/18/11 5:47 AM, Bob Bruninga wrote:
> The problem with LEO satellites is that a nadir facing antenna does give
> great gain directly overhead ground stations, but only for about the center
> 2 minutes of only the one direct overhead pass a day. The problem with
> facing antennas "down" on a L
Hi all,
This Saturday the 20th of August I am planning on heading to the grid line of
en22 and en21. I am going to try and be on all passes of SO-50, AO-51, AO-27,
and FO29 between 1800z and 2200z. I don't know if I will be able to bring
enough equipment to operate FO-29 yet. The main goal of
On 8/18/11 8:15 AM, Patrick Strasser OE6PSE wrote:
> For decoding please be aware that I/Q via sound interfaces has a weak
> spot at the centre frequency. The interfaces all have a high pass
> characteristic below like 30Hz, which means the resulting spectrum has a
Yes, I'm familiar with this. I
Thought some might be interested in this.
Kentucky Space announces the first annual hackerSPACE Workshop...focused on
CubeSat class satellites:
http://www.kentuckyspace.com/pollydoc/hackerSPACE-2.pdf
Charlie
KI4RDT
___
Sent via AMSAT-BB@amsat.org. Opin
congrats, what is this award and were can i find the info on it?
Tx
73
KC9PXZ
Jimmy
- Original Message -
From: amsat-bb@amsat.org>
Sent: Thursday, August 18, 2011 7:48 PM
Subject: [amsat-bb] 5 in EM55
To: "AMSAT" <
Congrats to Clayton for 5 in em55 award #24
WA4HFN em55 Damon
_
Special thanks to Rick N5ZNL/M operating this afternoon from EM55.
73,
Clayton
W5PFG
On Thu, Aug 18, 2011 at 7:48 PM, wrote:
> Congrats to Clayton for 5 in em55 award #24
> WA4HFN em55 Damon
> ___
> Sent via AMSAT-BB@amsat.org. Opinions expressed are
Hi,
just had a pass no SSTV this time. bumer! Did get the voice TLM. Speacking of
TLM. when you say send TLM to the servier, thats where? I also used scanner
recorder to record the pass. It was wierd all I heard in the play back was loud
beeps. any thought. I hate not to record the audio, maybe
Burns,
Some things to try:
Go portable. Grab a battery for less than 20 bucks. (most people have a
charger)Sometimes the location is the enemy. I've been places that require a
cavity filter to receive anything in the vhf satellite spectrum.
Try getting rid of the duplexer.
Where is your preamp pe
If you don't already have your email address on QRZ.com callsign lookup, PLEASE
go there and add it (if you have one)
This is very helpful in making skeds for satellite contacts and sharing info
with new ops.
Thanks WA4HFN Damon EM55
___
Sent via AMSA
Congrats to Clayton for 5 in em55 award #24
WA4HFN em55 Damon
___
Sent via AMSAT-BB@amsat.org. 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
Burns,
First of all, I also have an eggbeater on 144 and it does work,
however, it is a poor antenna and my preamp for this one is in the
shack. I have always advised that anyone that wants to do LEO
satellites, needs to put their money into their antenna system- Good
coax, good preamp with a dir
I Tnx Keith (N4ZQ) for QSO on CW on AO7 Mode A, Orbit 68221 covering
7041 km betewwn our QTHs.
I would like to invite other stations from North America willing to
attempt a QSO on AO7 on Mode A. My grid locator is FF66TQ.
Tnx agn, Best 73 de
--luis
LU6QI
___
Hi everyone,
Ok, I'm getting very frustrated and I think I need some Elmering. I have
not heard ANYTHING from ARRISat-1, at least nothing intelligible. I'm a
pretty new ham, so I'm getting into it one piece of equipment at a time.
Figured I'd play a bit with a handheld, and then figure out what
Gould,
For what it's worth, the linear transponder sounded good. I had a quick QSO
with K3SZH.
Dave - KB1PVH
Sent from my Verizon Wireless DROID X
On Aug 18, 2011 7:46 PM, "Gould Smith" wrote:
> During the 2320Z pass of ARISSat-1 over North America this evening a
number of changes to the 2m FM
I used my Arrow II antenna from working the satellites and ran outside with a
single HT and my recorder and headphones. I caught a nice pass with 64 degrees
at peak and recorded some SSTV and voice telemetry cycles. It was awesome! I
know I am late in coming around to this but better late than n
I also heard it. And I didn't have my recorder running either.
I did get a couple of decent SSTV images, though.
73
Glenn AA5PK
N0JY wrote:
> ARISSat-1 right now, some very strange sounding telemetry. Started out
> normal, then a ticking sound not unlike a WWV clock tick, then some CW
>
During the 2320Z pass of ARISSat-1 over North America this evening a number of
changes to the 2m FM transmissions were noted.
1) Male voice for telemetry means that the female voice files on the SD card
could not be read
2) No greetings, mean that the greetings stored on the SD card could not be
the reset the bird was not in range long enough to have captured it all,
or perhaps it quit in the middle of it anyway.
Jerry
N0JY
__ Information from ESET NOD32 Antivirus, version of virus signature
database 6390 (20110818) __
The message was checked by ESET NOD32 A
ature
database 6390 (20110818) __
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur sate
Relayed from Gary WA2AQH---
Please be advised that the Mt Beacon Repeater AMSAT Net will be held
at 00:00 hrs UTC and will also be connected via Echo-Link N2EYH-L.
Come with all your reports of Arisssat-1 receptions. There is a
pass at 23:19 before the Net - Listen on 145.950 +- Doppler
Relay for W5KUB ... received last minute update from Tom:
Hello to all the viewers of the W5KUB.COM broadcasts.
Live Broadcast this weekend! Aug 19-21
Thank you so much for being with us during the Dayton Hamvention. We had
over 30,000 unique hams follow us the 5 days and in about 100 countr
All,
Remember, reports numbering into the thousands, processors well into single
digits. ;) Be patient!
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Mike Schaffer
Sent: Thursday, August 18, 2011 4:25 PM
To: amsat
Today, I received my ARISSat-1 certificate. Everyone check your email!
73's
Mike Schaffer
KA3JAW
Tampa, Florida
EL87
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur s
Correction. I have to do this on each pass ! not each day.
I'm renaming the folder Kursk as kursk1, kursk2,...
So I have a new folder per orbit.
73 de Roland PY4ZBZ
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT
Clint,
I think you have only stated the facts. This question is about what
happened to the antenna? I, for one, am looking for the explanation
as he is.
Did it get broken? Did it get lost the many times it was unpacked?
Did it ever have one? Etc.?
We may never have the proverbial exact answer,
Hello Andre,
> Has anyone ever considered piggybacking on a geosat in a simular
> way the rs11 to 13 did?
> Sure you would need a very good lobbyist to get a ride with a multi
> milion dollar broadcast sat and it would only see one continent but it
> will give that continent 24/7 coverage, usin
It seems that there is a bug in telemetry software,
perhaps created by the MET reset on each orbit?
Each day, recorded files always have the same names:
KURSK-944.1 KURSK-944.2 and so on...
So I did the following:
Every day end, I'm renaming the folder Kursk as kursk1, kursk2,...
So I have a folde
Hi John,
Just yesterday I was trying to find time to type out a few AO-51 updates;
this will be brief, but hopefully informative to those on the list.
AO-51 is currently transmitting on 435.150 FM (LHCP) and using a 145.880 FM
uplink. We expect the keep this configuration "until futher notice."
I found it quite noticeable last night too, I'm 150 miles or so North of
Ron's QTH.
In my experience, the marker on ARISSatTLM was moving down rapidly as the
satellite approached. After TCA (which was at about 68 degrees elevation,
I believe) it reversed back to "normal".
I was using the latest ke
How much power is AO51 currently running? It sure sounded good on the
2200UTC pass yesterday-much more solid receive here than I was getting for
AO27 or SO 50.
73s John AA5JG
- Original Message -
From: "Andrew Glasbrenner"
To: "Joe"
Cc:
Sent: Thursday, August 18, 2011 2:49 PM
Subj
Op 18-8-2011 16:08, Andrew Glasbrenner schreef:
> From what I have read that is published, the DOD Colony II 3u cubesats are 3
axis controlled and pointable to within a degree or something close to that. As
Bob pointed out this isn't a big help for antenna pointing for multiuser LEO sats,
but
--- On Thu, 18/8/11, Andrew Glasbrenner wrote:
> published, the DOD Colony II 3u cubesats are 3 axis
> controlled and pointable to within a degree or something
> close to that.
UK company Clyde Space also doing work in this area, see
CubeSat High Resolution Camera
http://www.southgatearc.org/
Ron,
Alan's points are spot on. That being said---I see something similar to
what you are seeing and "blame" the Keps :)
In the first few days, the manual freq. correction at TCA was over 1,000Hz
(seems like I had to shift it down, so -1,000) as compared to AOS and
LOS...which were "on frequency
Am 2011-08-10 00:54, schrieb Phil Karn:
> It's been suggested that I modify my ARISSat-1 BPSK-1000 telemetry
> demodulator/decoder to accept wideband quadrature (I & Q) recordings
> like those produced by most of the software defined radios out there.
>
> This is fundamentally not that hard, but f
Hello Everyone,
This is one item that would be too late if we waited for the weekend ANS
news cycle.
Tom, W5KUB, famous for his Dayton Hamvention Webcasts, will be on-the-air
... well, on-the-internet with a webcast from the Huntsville Hamfest, live
August 20-21.
You can tune in at http://www.w5
Currently and for the foreseeable future we are on 145.88 up and 435.150 down.
73, Drew KO4MA
AMSAT-NA VP Operations
Sent from my iPhone
On Aug 18, 2011, at 9:24 AM, "Joe" wrote:
> I will be trying to work ao-51 during the ILLW this weekend (20-21Aug). I
> havent operated satellites since ao4
The MSU news report on EduSat can be seen at
http://www.moreheadstate.edu/News/2011/August/MSU,_UR_launch_satellite_from_Russia/
73 Trevor M5AKA
--- On Wed, 17/8/11, charlie Cantrill wrote:
> Looks like Edusat will be partially
> controlled here from the U.S., right down the road in
> Kentucky
I will be trying to work ao-51 during the ILLW this weekend (20-21Aug). I
havent operated satellites since ao40, which is a little while ago...
I will be using the usual an arrow antenna and ft60r. I am having problems
finding the frequencies to tx and rx on. It seems that there have been some
c
>From what I have read that is published, the DOD Colony II 3u cubesats are 3
>axis controlled and pointable to within a degree or something close to that.
>As Bob pointed out this isn't a big help for antenna pointing for multiuser
>LEO sats, but when you read the power production the Colony II
Ron,
That behavior is common around TCA, Time of Closest Approach. At that time
everything is changing rapidly, and slight errors in QTH position, system
clock, and Keps can be magnified. I have seen a few hundred Hz shift at
that time with new satellites whose Keps have not fully converged. Th
Last evening, after having several days experience capturing ARISSat telemetry,
I sat at my radio and watched carefully how SatPC32 and ARISSatTLM played
together. I had settled on a tuning correction value of –540 HZ to get the CW
signal to center around the CW tuning point as the Doppler corre
[Using attitude control]...
> We could mount microwave antennas on a nadir-facing
> surface and provide consistent, predictable, strong,
> wideband signals to ground stations during a pass.
The problem with LEO satellites is that a nadir facing antenna does give
great gain directly overhead gro
Last night I captured my first telemetry frames by holding a digital
recorder in front of the speaker on my TH-F6A, then playing the audio back
through my soundcard an hour or so later. I was pleasantly surprised to get
a few good frames and impressed with how smoothly the software worked.
Unfortu
James,
No ham event scheduled for Aug. 18. There was one on Aug 16 over Japan and the
next one is Aug 25 with Germany via LU8YY in Argentina.
Are you referring to the following educational video downlink posting?
http://www.amsat.org/amsat/archive/amsat-bb/10day/msg89701.html
Kenneth - N5VHO
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