I am looking for a battery paper by Carlos Lovett-Linares from the 1993 or 1994
AMSAT-UK Colloquium. Does anyone have a copy?
Thanks and 73,
Douglas KA2UPW/5
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Not an AMSAT-NA
Does anyone have a recording of a good UO-11 pass made with an SDR
receiver?
I'm looking for a recording that has I and Q channels (not just regular
audio) and something that has most of a good pass.
Douglas KA2UPW/5
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Hi Ken,
Hope this helps:
The output below certainly appears to be AX.25 in KISS format with the
extended
ASCII characters translated to perhaps something like Windows Arial font.
The a-grave (the A with the backwards accent) is hex C0, which is the
KISS frame delimiter
that appears at the
Has anyone demodulated the GMSK signals from BeeSat-2 or BeeSat-3? Does
demodulating the data require a CMX909 chip or is there an all software
solution?
73,
Douglas KA2UPW/5
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Does anyone have a recording of STRaND-1 transmitting at 9600 baud?
I am looking for either an IQ recording of the signal or a WAV file
recording.
Thanks,
Douglas KA2UPW/5
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Bob wrote:
In the old days, it required everyone to get a $300 modem and use an
SSB
rig on the downlink. But the Uplink is FM. SO anyone can transmit.
And
these days, somone I am sure has already written the sound-card
generate
the manchester uplink!
Hi Bob,
I wrote that program to
Hi Tony,
All of the AO-40 telemetry is archived on the AMSAT website. You can
start at
http://www.amsat.org/amsat/ftp/telemetry/ao40/
For November 17 at 15:11 UTC you probably want the file
http://www.amsat.org/amsat/ftp/telemetry/ao40/2000/11/ao40_2000-11-17_3.zip
for the
As a friendly reminder, we are approaching the deadline for article
submissions
for the next issue of the AMSAT Journal. Please finish your articles
and submit
them to jour...@amsat.org by July 23.
Thanks and 73,
Douglas KA2UPW/5
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Hi Masa,
The binary files on the AMSAT FTP site today are the RAW (not decoded)
telemetry files.
We will have the decoded ARISSat-1 telemetry available as decoded CSV files on
the
AMSAT FTP site soon.
Douglas KA2UPW/5
-Original Message-
From: Masahiro Arai
Hi John,
Hamtronics previously offered a UHF receive converter. It was available as a
kit and was a mix
of through-hole components and surface mount. This was the first surface mount
kit that I built.
There were two options for the crystals, so that it would convert either 435.0
MHz or
All,
It looks like the balloon is almost all of the way across the Atlantic!
Current course will place it closer to Morocco or slightly south of
Portugal.
K6RPT-11 APRS Balloon heard by CU2IE / Sao Miguel - still at 109k
2011-12-13 19:30:31 UTC:
The K6RPT-11 transatlantic balloon is now being heard in Portugal.
At 02:00:30 z K6RPT-11 was heard by CT1END in Amadora, Portugal.
APRS packets:
2011-12-14 02:00:30 UTC: K6RPT-11APBL10,WIDE2-1,qAR,CT1END,PORTUGAL:
!3531.31N/01636.70WO077/129/A=110384V1B2 CNSP-11
The balloon is still over
If you are interested in a certificate for ARISSat reception, the directions
are at
http://www.arissat1.org/v3/index.php?option=com_contentview=categorylayout=blogid=61Itemid=137
If you are just interested in submitting BPSK1000 telemetry, you can configure
ARISSatTLM to
forward
All,
Thanks for bringing this to my attention. It looks like the telemetry server
had a slight hiccup.
Telemetry was still being accepted and was saved, but the web pages were not
being updated.
I gave the telemetry server a gentle nudge. It has started updating the web
pages again.
According to the Explorer-1 Prime operations web page at
http://ssel.montana.edu/e1p/operations/
the satellite will transmit a 2200 Hertz tracking tone before each FSK AX.25
packet is transmitted.
What is the duration of the tracking tone? one second? ten seconds?
Does anyone have a sample
Hi Stuart,
As of right now, ARISSat-1 is up. Telemetry has come in from multiple
ground
stations within the last few minutes.
Depending on the orbit, there is often a delay between the time when
ARISSat comes
out of eclipse and the time when it starts transmitting telemetry. If
All,
ARISSatTLM only uses the 48 kHz sampling rate on soundcards, so
that's the only rate your card needs to be able to run at for ARISSatTLM.
Douglas KA2UPW/5
James McBride wrote:
Randy,
Make sure you have any audio or DSP filters switched off, IF shift to
centre etc. I found the 'tone'
Telemetry came into the Internet telemetry server up until 02:43:37 UTC Aug
27. Then there's no
further telemetry until 3:35:46 UTC.
If you are receiving telemetry, please turn on the forwarding to the Internet
telemetry
server, and also please email in your .CSV files to telemetry at
Hi Richard,
Don't worry. All of the telemetry data sent to telemetry.arissattlm.org
is timestamped with the UTC date and time when the receiving station
received the telemetry. All received telemetry is saved to a .CSV file
(one CSV file per day) with one line per telemetry frame. Each
All these data are based on the STP telemetry files from the AMSAT-FTP
server
(Kursk / Spacecraft). Every telemetry frame exist only once.
If 10 stations listen to ARISSat and every station is forwarding the
telemetry
to the server - only one packet wins.
Actually, the telemetry on the
All,
If you received any BPSK1000 telemetry, then ARISSatTLM should have
created a .CSV file in the ARISSatTLM\Telemetry folder on your desktop.
The file should be named with the date (for example, 2001-8-5.CSV).
We would really like to get a copy of the telemetry you received.
Email the
-Original Message-
From: n0jy n...@lavabit.com
To: Douglas Quagliana dquagli...@aol.com
Cc: amsat-bb amsat-bb@amsat.org
Sent: Tue, Aug 16, 2011 11:12 am
Subject: Re: [amsat-bb] Re: Certificate for receiving BPSK-1000 telemetry
Hi Douglas,
Do you want these files, even if we have been forwarding
Everyone,
If you receive a SSTV picture, I encourage you to upload the image
to the ARISS SSTV gallery at
http://www.amsat.org/amsat/ariss/SSTV/
so that everyone can see it. And, if you have not seen any of the images
yet, go there and be amazed. There are actual images from ARISSat's
All,
We now have LIVE BPSK telemetry from ARISSat-1. As it comes in, the
telemetry
will be updated on the web. You can see the latest telemetry that was
received at
http://www.arissattlm.org/mobile
This web page was designed to be viewed on a cellphone or mobile device
but you can still
All,
If you are able to make an audio recording of the signals from
ARISSat-1, I would be very interested in obtaining a copy of your
recording. I would be most interested in recordings of the CW and
BPSK signals, but if are able to record the voice and SSTV signals
I would be interested in
All,
The WS.REPUTATION is an indication from Norton that he's never seen this
particular executable before and Norton doesn't have this executable in its
database, so, by Norton's definition, this executable doesn't have a reputation
with them. We saw this same false-positive during
First call for ARISSat-1 audio recordings
If you haven't already heard about it, ARISSat-1 will be activated
while still inside the International Space Station. The transmissions
are scheduled to begin around Monday 11 April 2011 at 14:30 UTC
and continue until 10:30 UTC on 13 April
Hi Kevin,
you wrote:
I know there is a kit out there for a receiver and or a SSB converter.
2-meter/70cm SSB receiver. I heard there was an article in QST so it
must exist.
You might be thinking of the KK7B receivers which were in QST magazine in
the early 1990s.
These receivers included
If anyone made a recording of ARISSat-1's BPSK1000 signal (either an SDR
recording or just a regular recording), then I'd like to get a copy.
Please email me if you made a recording of the BPSK1000 signal.
73,
Douglas KA2UPW/5
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Hi Mark,
I was able to demodulate some of the weirdnoise.mp3 file with my
uo11dem program.
The best part of that recording comes out (with some errors) as
r??{6^6vF76V'~GFGVF'fF7vCG#+Uj5000146000247000348000C49000D
555100045200075300065400015556000357000258000D59000A
There is a webpage for PCSAT on findu.com. The callsigns from the
satellite
appear as W3ADO-1 and PCSAT-11.
See http://www.findu.com/cgi-bin/pcsat.cgi
Douglas KA2UPW/5
Gordon JC Pearce wrote:
It's not loud enough to copy with my dipole, because it's still pretty
low in the sky to the
Reid Crowe wrote:
I'm trying to write my own pass prediction program for tracking FM
satellites.
73, Reid N0RC
Hi Reid,
If you want something in C, try predict.If BASIC is more to your
liking, then try G3RUH's plan13 program.
Both come with source code. Predict is GPL. Plan13
Is anyone coming to the AMSAT Symposium that can bring
the Alinco software and the special-magic cable for
firmware upgrades for the DJ-G7?
Douglas KA2UPW
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Not an AMSAT-NA
Hi,
Can anyone tell me if the satellites will be transmitting
packets with FX.25 all of the time, or is FX.25 only
going to be enabled at certain times?
Douglas KA2UPW/5
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