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CX2SA > SATDIG 09.02.19 03:11l 933 Lines 33455 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Geostationary & HEO Satellites (Simon Brown)
2. Re: Geostationary & HEO Satellites (Jim Sanford)
3. New Telemetry Decoder for FalconSat-3 (Chris Thompson)
4. Re: mmstv help (Robert Switzer)
5. Re: Geostationary & HEO Satellites (Paul Andrews)
6. Re: New Telemetry Decoder for FalconSat-3 (Scott)
7. Re: Geostationary & HEO Satellites (Jerry Buxton)
8. Re: Geostationary & HEO Satellites (Zach Metzinger)
9. Re: New Telemetry Decoder for FalconSat-3 (Chris Thompson)
10. Re: New Telemetry Decoder for FalconSat-3 (Michael Styne)
----------------------------------------------------------------------
Message: 1
Date: Fri, 8 Feb 2019 21:24:00 -0000
From: "Simon Brown" <simon@?????????.???>
To: "'Paul Andrews'" <w2hro.fn20@?????.???>
Cc: 'amsat-bb' <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Geostationary & HEO Satellites
Message-ID: <024f01d4bff4$9c025130$d406f390$@?????????.???>
Content-Type: text/plain; charset="UTF-8"
Paul,
The round trip with people I speak to would be several minutes ? .
Simon Brown, G4ELI
<http://www.sdr-radio.com/> www.sdr-radio.com
From: Paul Andrews <w2hro.fn20@?????.???>
Sent: 08 February 2019 21:20
To: Simon Brown <simon@?????????.???>
Cc: amsat-bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Geostationary & HEO Satellites
Simon,
I spent 20 years building data circuits using geosynchronous satellites.
During that time, my definition of round trip was
uplink-dowlink-uplink-downlink or 4 x 150ms (plus or minus a small amount of
Doppler).
Yes - you're correct - the loopback delay is 300ms. But if you communicate
with another person on Earth, the round trip delay is 600ms.
If you tell someone a joke, you won't hear the laugh until after a 600ms
delay. This is only true for a good joke. Tell a bad joke and the delay
will be infinite. :O
73 - Paul - W2HRO
On Fri, Feb 8, 2019, 16:09 Simon Brown <simon@?????????.???
<mailto:simon@?????????.???> > wrote:
Paul,
Unless there's significant latency inside the satellite, I think you're out
by a factor of two. Round trip is 2 x 40,000 km (*) = 80,000 km total. Speed
of light and radio latency says we're looking at closer to 300 ms.
(*) depending on where you are on the mother planet.
Simon Brown, G4ELI
www.sdr-radio.com <http://www.sdr-radio.com>
-----Original Message-----
From: AMSAT-BB <amsat-bb-bounces@?????.???
<mailto:amsat-bb-bounces@?????.???> > On Behalf Of Paul Andrews
Sent: 08 February 2019 19:27
To: Les Rayburn <les@????????????.??? <mailto:les@????????????.???> >
Cc: AMSAT BB <amsat-bb@?????.??? <mailto:amsat-bb@?????.???> >
Subject: Re: [amsat-bb] Geostationary & HEO Satellites
GEOSATs have another interesting characteristic. 600 ms round trip
delay due to the longer distance.
Does anyone remember when MCI first started providing a discounted long
distance telephone service?
This will make voice QSOs a little unnatural but certainly not impossible.
73 - Paul - W2HRO
On Fri, Feb 8, 2019 at 12:21 PM Les Rayburn <les@????????????.???
<mailto:les@????????????.???> > wrote:
>
> I?m also a newcomer to the birds, but very excited about it. Likewise, I
responded to the survey, but wanted to comment further regarding
geostationary and HEO satellites.
>
> In the camp of ?Both, please.? The HEO birds would once again offer the
possibility of DXCC and make WAS more realistic?it also offers more
operating challenges.
>
> But a geostationary amateur satellite would have many interesting benefits:
>
> Provide an easier introduction to satellite operation, and attract new
operators.
> Excellent tool for emergency communications during a natural disaster.
> Opportunity to experiment with microwave operations.
> The ability to enjoy satellite operation any time of the day/night. The
band is always open.
>
> I?m grateful for anyone who incorporates amateur radio into their
satellites, but feel that birds should include either linear, digital, or FM
transponders whenever possible. Designers are asking a lot of hams when they
solicit our monitoring their telemetry signals, and using amateur spectrum
for their purposes without much tangible benefit to us. My opinion only.
>
> It?s wonderful that they asked us. Dialogue is the key to most human
accomplishment.
>
>
> 73,
>
> Les Rayburn, N1LF
> Maylene, AL
> EM63nf
> AMSAT #38965, ARRL Life Member, CVHS Life Member, SVHF Member
>
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@?????.??? <mailto:AMSAT-BB@?????.???> . AMSAT-NA makes
this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed are solely those of the author, and do not reflect the
official views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@?????.??? <mailto:AMSAT-BB@?????.???> . AMSAT-NA makes
this open forum available to all interested persons worldwide without
requiring membership. Opinions expressed are solely those of the author, and
do not reflect the official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@?????.??? <mailto:AMSAT-BB@?????.???> . AMSAT-NA makes
this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Fri, 8 Feb 2019 17:49:46 -0500
From: Jim Sanford <wb4gcs@??????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Geostationary & HEO Satellites
Message-ID: <b8baf3ae-2078-86f7-0c03-aa48f10d8935@??????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Very much what? I see with my satellite internet -- if I ping something,
I see delay between 600 - 800 msec.
Jim
wb4gcs@?????.???
On 2/8/2019 4:20 PM, Paul Andrews wrote:
> Simon,
>
> I spent 20 years building data circuits using geosynchronous satellites.
> During that time, my definition of round trip was
> uplink-dowlink-uplink-downlink or 4 x 150ms (plus or minus a small amount
> of Doppler).
>
> Yes - you're correct - the loopback delay is 300ms. But if you communicate
> with another person on Earth, the round trip delay is 600ms.
>
> If you tell someone a joke, you won't hear the laugh until after a 600ms
> delay. This is only true for a good joke. Tell a bad joke and the delay
> will be infinite. :O
>
> 73 - Paul - W2HRO
>
>
>
>
> On Fri, Feb 8, 2019, 16:09 Simon Brown <simon@?????????.???> wrote:
>
>> Paul,
>>
>> Unless there's significant latency inside the satellite, I think you're
>> out by a factor of two. Round trip is 2 x 40,000 km (*) = 80,000 km total.
>> Speed of light and radio latency says we're looking at closer to 300 ms.
>>
>> (*) depending on where you are on the mother planet.
>>
>> Simon Brown, G4ELI
>> www.sdr-radio.com
>>
>>
>> -----Original Message-----
>> From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Paul Andrews
>> Sent: 08 February 2019 19:27
>> To: Les Rayburn <les@????????????.???>
>> Cc: AMSAT BB <amsat-bb@?????.???>
>> Subject: Re: [amsat-bb] Geostationary & HEO Satellites
>>
>> GEOSATs have another interesting characteristic. 600 ms round trip
>> delay due to the longer distance.
>>
>> Does anyone remember when MCI first started providing a discounted long
>> distance telephone service?
>>
>> This will make voice QSOs a little unnatural but certainly not impossible.
>>
>> 73 - Paul - W2HRO
>>
>>
>>
>>
>>
>> On Fri, Feb 8, 2019 at 12:21 PM Les Rayburn <les@????????????.???> wrote:
>>> I?m also a newcomer to the birds, but very excited about it. Likewise, I
>> responded to the survey, but wanted to comment further regarding
>> geostationary and HEO satellites.
>>> In the camp of ?Both, please.? The HEO birds would once again offer the
>> possibility of DXCC and make WAS more realistic?it also offers more
>> operating challenges.
>>> But a geostationary amateur satellite would have many interesting
>> benefits:
>>> Provide an easier introduction to satellite operation, and attract new
>> operators.
>>> Excellent tool for emergency communications during a natural disaster.
>>> Opportunity to experiment with microwave operations.
>>> The ability to enjoy satellite operation any time of the day/night. The
>> band is always open.
>>> I?m grateful for anyone who incorporates amateur radio into their
>> satellites, but feel that birds should include either linear, digital, or
>> FM transponders whenever possible. Designers are asking a lot of hams when
>> they solicit our monitoring their telemetry signals, and using amateur
>> spectrum for their purposes without much tangible benefit to us. My opinion
>> only.
>>> It?s wonderful that they asked us. Dialogue is the key to most human
>> accomplishment.
>>>
>>> 73,
>>>
>>> Les Rayburn, N1LF
>>> Maylene, AL
>>> EM63nf
>>> AMSAT #38965, ARRL Life Member, CVHS Life Member, SVHF Member
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
>>> to all interested persons worldwide without requiring membership.
>>> Opinions expressed are solely those of the author, and do not reflect
>> the official views of AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite
>> program!
>>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available to
>> all interested persons worldwide without requiring membership. Opinions
>> expressed are solely those of the author, and do not reflect the official
>> views of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership. Opinions
>> expressed
>> are solely those of the author, and do not reflect the official views of
>> AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
---
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------------------------------
Message: 3
Date: Fri, 8 Feb 2019 17:53:33 -0500
From: Chris Thompson <g0kla@????.???>
To: AMSAT <AMSAT-BB@?????.???>
Subject: [amsat-bb] New Telemetry Decoder for FalconSat-3
Message-ID:
<CAJOf0+vheYt_5FM-vd-Q6VBdb3zYg-VDOYxuvfy0kSr6iCNjpA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I've written a new Ground station for FalconSat-3. If you had an initial go
with WISP without success or if you have never tried to decode FalconSat-3,
now is a good time to try. This requires much less setup than WISP. And
don't be put off if you don't have a hardware TNC, this will work with a
soundcard TNC. Or, if you didn't try to listen to FalconSat-3 because you
don't have a station that can transmit commands to the spacecraft, then
read on. We still need your help to decode telemetry.
In particular we would like to encourage people to download the Telemetry
and forward it to an AMSAT telemetry server. Currently more telemetry is
generated than we can download with AMSAT Operations ground stations.
Receive only stations can contribute to that as well as stations equipped
to transmit to FalconSat-3 and request files. You can see telemetry
uploaded so far here: http://tlm.amsatfox.org/tlm/FalconSat-3
There are details about the spacecraft, how to install the software and how
it works in the manual available if you download the software or online
here: http://www.g0kla.com/pacsat/pacsat_ground_manual.pdf
You can download the software at www.g0kla.com/pacsat/index.php. I have
also written some blog posts and thoughts about the software for anyone
interested. They are linked from the download page.
There is much to do here of course and most of it probably won't get done.
I would call this a beta release. If you have suggestions or bug fixes
please log them online at https://github.com/ac2cz/Falcon/issues or send me
an email.
The software is open source. All the details are here:
https://github.com/ac2cz/Falcon/ The telemetry processing and display
leverages common code from FoxTelem in a library here:
https://github.com/ac2cz/libTelem/
--
Chris E. Thompson
chrisethompson@?????.???
g0kla@????.???
------------------------------
Message: 4
Date: Fri, 8 Feb 2019 23:09:54 +0000 (UTC)
From: Robert Switzer <rs2atmink@?????.???>
To: kd5cev@?????.???? Walter Holmes/K5WH <walterh@????.???>
Cc: amsat-bb@?????.???? James Brown <jimki6wj@?????????.???>
Subject: Re: [amsat-bb] mmstv help
Message-ID: <1129515202.651482.1549667394783@????.?????.???>
Content-Type: text/plain; charset=UTF-8
very weak signal heard on the last pass.
I was using a whip but in the past, this was more than enough for an ISS
SSTV signal, not so now.
Rob KA2CZU
On Friday, February 8, 2019, 2:41:39 PM EST, Walter Holmes/K5WH
<walterh@????.???> wrote:
Listen on 145.80 with mmstv software.
Walter/K5WH
Sent from my Verizon Moto Z Force
On Feb 8, 2019 1:32 PM, willie odom sr <kd5cev@?????.???> wrote:
>
> Did the ISS send pic .. I heard nothing here in houston about 12.01 our
> time or were my times wrong......
>
>
> On Fri, Feb 8, 2019 at 12:27 PM James Brown <jimki6wj@?????????.???> wrote:
>
> > Downloaded MMSTV? to prepare for iss . I do not see pd 120 listed as a
> > mode. Is the the correct software to use?
> >
> > My set up is satpc32 controlling ft817 and ic7100 for No. 2 radio and
> > g5500 rotor.
> >
> > will I be able to run sat32 for tracking and also sstv for the picture? I
> > presume yes.
> >
> > Jim KI6WJ
> > _______________________________________________
> > Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership. Opinions
> > expressed
> > are solely those of the author, and do not reflect the official views of
> > AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >
> _______________________________________________
> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Fri, 8 Feb 2019 18:17:27 -0500
From: Paul Andrews <w2hro.fn20@?????.???>
To: wb4gcs@?????.???
Cc: amsat-bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Geostationary & HEO Satellites
Message-ID:
<CAOsf+NR8gXiKEW6N=SiUr+pXxwGLzcjgtjvtuyhuNyroCj9H_g@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Yes! That delay is a problem for Internet (TCP/IP) connections. Special
proxies are used to increase throughput.
The geosat is not even launched and the ham radio community is exchanging
technics to overcome technical challenges.
I was thinking of other geosat uses. A beacon in the sky for taking
antenna patterns. A frequency reference for calibration. Verifying
antenna G/T. Calibrating antenna AZ/EL pointing. Endless uses.
On Fri, Feb 8, 2019, 17:52 Jim Sanford <wb4gcs@??????.???> wrote:
> Very much what I see with my satellite internet -- if I ping something,
> I see delay between 600 - 800 msec.
>
> Jim
>
> wb4gcs@?????.???
>
>
> On 2/8/2019 4:20 PM, Paul Andrews wrote:
> > Simon,
> >
> > I spent 20 years building data circuits using geosynchronous satellites.
> > During that time, my definition of round trip was
> > uplink-dowlink-uplink-downlink or 4 x 150ms (plus or minus a small amount
> > of Doppler).
> >
> > Yes - you're correct - the loopback delay is 300ms. But if you
> communicate
> > with another person on Earth, the round trip delay is 600ms.
> >
> > If you tell someone a joke, you won't hear the laugh until after a 600ms
> > delay. This is only true for a good joke. Tell a bad joke and the delay
> > will be infinite. :O
> >
> > 73 - Paul - W2HRO
> >
> >
> >
> >
> > On Fri, Feb 8, 2019, 16:09 Simon Brown <simon@?????????.???> wrote:
> >
> >> Paul,
> >>
> >> Unless there's significant latency inside the satellite, I think you're
> >> out by a factor of two. Round trip is 2 x 40,000 km (*) = 80,000 km
> total.
> >> Speed of light and radio latency says we're looking at closer to 300 ms.
> >>
> >> (*) depending on where you are on the mother planet.
> >>
> >> Simon Brown, G4ELI
> >> www.sdr-radio.com
> >>
> >>
> >> -----Original Message-----
> >> From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Paul Andrews
> >> Sent: 08 February 2019 19:27
> >> To: Les Rayburn <les@????????????.???>
> >> Cc: AMSAT BB <amsat-bb@?????.???>
> >> Subject: Re: [amsat-bb] Geostationary & HEO Satellites
> >>
> >> GEOSATs have another interesting characteristic. 600 ms round trip
> >> delay due to the longer distance.
> >>
> >> Does anyone remember when MCI first started providing a discounted long
> >> distance telephone service?
> >>
> >> This will make voice QSOs a little unnatural but certainly not
> impossible.
> >>
> >> 73 - Paul - W2HRO
> >>
> >>
> >>
> >>
> >>
> >> On Fri, Feb 8, 2019 at 12:21 PM Les Rayburn <les@????????????.???>
> wrote:
> >>> I?m also a newcomer to the birds, but very excited about it. Likewise,
> I
> >> responded to the survey, but wanted to comment further regarding
> >> geostationary and HEO satellites.
> >>> In the camp of ?Both, please.? The HEO birds would once again offer the
> >> possibility of DXCC and make WAS more realistic?it also offers more
> >> operating challenges.
> >>> But a geostationary amateur satellite would have many interesting
> >> benefits:
> >>> Provide an easier introduction to satellite operation, and attract new
> >> operators.
> >>> Excellent tool for emergency communications during a natural disaster.
> >>> Opportunity to experiment with microwave operations.
> >>> The ability to enjoy satellite operation any time of the day/night. The
> >> band is always open.
> >>> I?m grateful for anyone who incorporates amateur radio into their
> >> satellites, but feel that birds should include either linear, digital,
> or
> >> FM transponders whenever possible. Designers are asking a lot of hams
> when
> >> they solicit our monitoring their telemetry signals, and using amateur
> >> spectrum for their purposes without much tangible benefit to us. My
> opinion
> >> only.
> >>> It?s wonderful that they asked us. Dialogue is the key to most human
> >> accomplishment.
> >>>
> >>> 73,
> >>>
> >>> Les Rayburn, N1LF
> >>> Maylene, AL
> >>> EM63nf
> >>> AMSAT #38965, ARRL Life Member, CVHS Life Member, SVHF Member
> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> >>> to all interested persons worldwide without requiring membership.
> >>> Opinions expressed are solely those of the author, and do not reflect
> >> the official views of AMSAT-NA.
> >>> Not an AMSAT-NA member? Join now to support the amateur satellite
> >> program!
> >>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >> _______________________________________________
> >> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> to
> >> all interested persons worldwide without requiring membership. Opinions
> >> expressed are solely those of the author, and do not reflect the
> official
> >> views of AMSAT-NA.
> >> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> >> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >>
> >> _______________________________________________
> >> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> >> to all interested persons worldwide without requiring membership.
> Opinions
> >> expressed
> >> are solely those of the author, and do not reflect the official views of
> >> AMSAT-NA.
> >> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> >> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >>
> > _______________________________________________
> > Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership.
> Opinions expressed
> > are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 6
Date: Fri, 8 Feb 2019 18:24:22 -0500
From: "Scott" <scott23192@?????.???>
To: "AMSAT" <AMSAT-BB@?????.???>
Subject: Re: [amsat-bb] New Telemetry Decoder for FalconSat-3
Message-ID: <55251F56DC9145F7AE48F24F9F4EF7DD@???????>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
That's great, Chris! Thanks for all the work on that project.
Regarding telemetry, does AMSAT access the data that is forwarded to
SatNogs?
Ever since FalconSat-3 was turned over to the Amateur Community, along with
I'm sure a lot of others, I have forwarded thousands of telemetry packets
from FalconSat-3 to the SatNogs database using the DK3WN Telemetry Forwarder
( http://www.dk3wn.info/files/tlm_forwarder2.zip ).
Now, I don't know HOW to access data that is forwarded to SatNogs in that
way, but a lot of data is aggregated there from many of the past & presently
active satellites that have known decoders. I'm aware that Univ. Colorado
/ Boulder obtains data from the CSIM satellite that way; I would imagine
others do as well.
Thanks again for what I'm sure was a huge job on the new software!
-Scott, K4KDR
=========================================
-----Original Message-----
From: Chris Thompson
Sent: Friday, February 08, 2019 5:53 PM
To: AMSAT
Subject: [amsat-bb] New Telemetry Decoder for FalconSat-3
I've written a new Ground station for FalconSat-3. If you had an initial go
with WISP without success or if you have never tried to decode FalconSat-3,
now is a good time to try. This requires much less setup than WISP. And
don't be put off if you don't have a hardware TNC, this will work with a
soundcard TNC. Or, if you didn't try to listen to FalconSat-3 because you
don't have a station that can transmit commands to the spacecraft, then
read on. We still need your help to decode telemetry.
In particular we would like to encourage people to download the Telemetry
and forward it to an AMSAT telemetry server. Currently more telemetry is
generated than we can download with AMSAT Operations ground stations.
Receive only stations can contribute to that as well as stations equipped
to transmit to FalconSat-3 and request files. You can see telemetry
uploaded so far here: http://tlm.amsatfox.org/tlm/FalconSat-3
There are details about the spacecraft, how to install the software and how
it works in the manual available if you download the software or online
here: http://www.g0kla.com/pacsat/pacsat_ground_manual.pdf
You can download the software at www.g0kla.com/pacsat/index.php. I have
also written some blog posts and thoughts about the software for anyone
interested. They are linked from the download page.
There is much to do here of course and most of it probably won't get done.
I would call this a beta release. If you have suggestions or bug fixes
please log them online at https://github.com/ac2cz/Falcon/issues or send me
an email.
The software is open source. All the details are here:
https://github.com/ac2cz/Falcon/ The telemetry processing and display
leverages common code from FoxTelem in a library here:
https://github.com/ac2cz/libTelem/
--
Chris E. Thompson
chrisethompson@?????.???
g0kla@????.???
------------------------------
Message: 7
Date: Fri, 8 Feb 2019 17:30:19 -0600
From: Jerry Buxton <n0jy@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Geostationary & HEO Satellites
Message-ID: <7b8e2c9a-6cc6-da02-3256-1d9058302878@?????.???>
Content-Type: text/plain; charset=utf-8
On 2/8/2019 13:43, jim@?????.??? wrote:
> For those of us that operated on AO-40 during it's unfortunately short
life, when it was at or near apogee, it was well beyond the Geo belt, and
that was entertaining. Of course most people on linear birds operate full
duplex and it took a little to get used to hearing yourself with such along
delay...
I found that even back to AO-13 this was actually serendipitous
foresight to the current day and age, where you get on online meetings
and have a half second or more of delay hearing yourself back over the
meeting audio echo when somebody doesn't have theirs muted correctly.?
Anybody who worked the HEO birds can just keep on talking!?
Unfortunately anybody who didn't probably doesn't know what the heck you
are saying, but you and the other old timers are fine!
hihi
Jerry Buxton, N?JY
------------------------------
Message: 8
Date: Fri, 8 Feb 2019 18:09:17 -0600
From: Zach Metzinger <zmetzing@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Geostationary & HEO Satellites
Message-ID: <b23c2db9-62ec-437f-8a7a-217e16bd0d4f@?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
On 2/8/19 5:30 PM, Jerry Buxton wrote:
> I found that even back to AO-13 this was actually serendipitous
Speaking of AO-13, here's a great video about the old gal:
https://www.youtube.com/watch?v=uWfZqrdWBdU
Audio is only in German, which taxes my high-school memory of the
subject, but the pictures are great.
--- Zach
N0ZGO
------------------------------
Message: 9
Date: Fri, 8 Feb 2019 19:47:09 -0500
From: Chris Thompson <g0kla@????.???>
To: Scott <scott23192@?????.???>
Cc: AMSAT <AMSAT-BB@?????.???>
Subject: Re: [amsat-bb] New Telemetry Decoder for FalconSat-3
Message-ID:
<CAJOf0+v+0hYBEGGezwK3cmaS3nA=xXJujPHHF=quugrW4Q1iEg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I'm not aware of that data or how to access it. If there is an archive of
data and it includes the WE files then it might be useful to us.
73
Chris
On Fri, Feb 8, 2019 at 6:25 PM Scott <scott23192@?????.???> wrote:
> That's great, Chris! Thanks for all the work on that project.
>
> Regarding telemetry, does AMSAT access the data that is forwarded to
> SatNogs?
>
> Ever since FalconSat-3 was turned over to the Amateur Community, along
> with
> I'm sure a lot of others, I have forwarded thousands of telemetry packets
> from FalconSat-3 to the SatNogs database using the DK3WN Telemetry
> Forwarder
> ( http://www.dk3wn.info/files/tlm_forwarder2.zip ).
>
> Now, I don't know HOW to access data that is forwarded to SatNogs in that
> way, but a lot of data is aggregated there from many of the past &
> presently
> active satellites that have known decoders. I'm aware that Univ.
> Colorado
> / Boulder obtains data from the CSIM satellite that way; I would imagine
> others do as well.
>
> Thanks again for what I'm sure was a huge job on the new software!
>
> -Scott, K4KDR
>
> =========================================
>
> -----Original Message-----
> From: Chris Thompson
> Sent: Friday, February 08, 2019 5:53 PM
> To: AMSAT
> Subject: [amsat-bb] New Telemetry Decoder for FalconSat-3
>
> I've written a new Ground station for FalconSat-3. If you had an initial go
> with WISP without success or if you have never tried to decode FalconSat-3,
> now is a good time to try. This requires much less setup than WISP. And
> don't be put off if you don't have a hardware TNC, this will work with a
> soundcard TNC. Or, if you didn't try to listen to FalconSat-3 because you
> don't have a station that can transmit commands to the spacecraft, then
> read on. We still need your help to decode telemetry.
>
> In particular we would like to encourage people to download the Telemetry
> and forward it to an AMSAT telemetry server. Currently more telemetry is
> generated than we can download with AMSAT Operations ground stations.
> Receive only stations can contribute to that as well as stations equipped
> to transmit to FalconSat-3 and request files. You can see telemetry
> uploaded so far here: http://tlm.amsatfox.org/tlm/FalconSat-3
>
> There are details about the spacecraft, how to install the software and how
> it works in the manual available if you download the software or online
> here: http://www.g0kla.com/pacsat/pacsat_ground_manual.pdf
>
> You can download the software at www.g0kla.com/pacsat/index.php. I have
> also written some blog posts and thoughts about the software for anyone
> interested. They are linked from the download page.
>
> There is much to do here of course and most of it probably won't get done.
> I would call this a beta release. If you have suggestions or bug fixes
> please log them online at https://github.com/ac2cz/Falcon/issues or send
> me
> an email.
>
> The software is open source. All the details are here:
> https://github.com/ac2cz/Falcon/ The telemetry processing and display
> leverages common code from FoxTelem in a library here:
> https://github.com/ac2cz/libTelem/
>
>
>
> --
> Chris E. Thompson
> chrisethompson@?????.???
> g0kla@????.???
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
--
Chris E. Thompson
chrisethompson@?????.???
g0kla@????.???
------------------------------
Message: 10
Date: Fri, 8 Feb 2019 20:03:02 -0500
From: Michael Styne <mstyne@?????.???>
To: Chris Thompson <g0kla@????.???>
Cc: AMSAT <AMSAT-BB@?????.???>
Subject: Re: [amsat-bb] New Telemetry Decoder for FalconSat-3
Message-ID: <19D9BCF3-483B-4682-B589-75507ABDA4B1@?????.???>
Content-Type: text/plain; charset=us-ascii
Chris,
Thank you so much for this. I will admit to being a bit bewildered by WISP
and I never actually got it working. I look forward to giving this a try
this weekend.
73,
Mike
Michael Styne K2MTS
mstyne@?????.???
>> You can download the software at www.g0kla.com/pacsat/index.php. I have
>> also written some blog posts and thoughts about the software for anyone
>> interested. They are linked from the download page
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@?????.???.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 14, Issue 53
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