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CX2SA > SATDIG 27.11.16 21:57l 1006 Lines 31878 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Tracking EO 79 (Paul Stoetzer)
2. Re: Tracking EO 79 (Greg D)
3. Re: CAMSAT launched CAS-2T Technical Verification (Steve Appleton)
4. Re Tracking EO-79 (David G0MRF)
5. ANS-318 AMSAT News Service Weekly Bulletins (Lee McLamb)
6. Re: CAMSAT launched CAS-2T Technical Verification (Alan Kung)
7. XW-1/HO-68 Restores work in this morning (Alan Kung)
8. Upcoming ARISS contact with Col.legi Asuncion de Ntra. Sra.,
Barcelona, Spain (n4csitwo@xxxxxxxxx.xxxx
9. Re: Re Tracking EO-79 (Sean K.)
10. Re: CAMSAT launched CAS-2T Technical Verification
(Jean-Pierre Godet)
11. Update on FunCube-3 / EO-79 Interference (Scott)
12. Re: Update on FunCube-3 / EO-79 Interference (Dani EA4GPZ)
13. Re Update on FunCube-3 / EO-79 Interference (David G0MRF)
----------------------------------------------------------------------
Message: 1
Date: Sat, 12 Nov 2016 19:25:20 +0000
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: APBIDDLE@xxxxxxx.xxxx "Sean K." <kx9x@xxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Tracking EO 79
Message-ID:
<CABzOSOpetW-WWxzQau68aq-HC87SdVBTS_gugv3vpG-eRodUWA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
It's basically calibrated for mid-northern latitudes now, so we should hear
it on daytime NA passes.
It wouldn't be difficult to write a script to calculate on and off times.
73,
Paul, XE3/N8HM (currently in Progreso, Yucat?n, Mexico)
On Sat, Nov 12, 2016 at 13:00 Alan <wa4sca@xxxxx.xxx> wrote:
> Sean,
>
> SatPC32 and some other tracking programs have a method of generating a
> list of times which include when
> the satellite is eclipsed. Taking WinListen as an example, you can
> generated a list, note the times it
> exits eclipse, calculate with active window, and then compare with your
> local passes. It sounds
> cumbersome, but should only take a couple of minutes per day.
>
> 73s,
>
> Alan
> WA4SCA
>
>
> 12.11.2016 E 15:36:00 92.9 -56.9 183.0 612 11398 24 -18 13030
> -
> 12.11.2016 E 15:38:00 101.0 -58.2 188.3 614 11537 23 -25 13030
> -
> 12.11.2016 E 15:40:00 109.4 -59.2 193.6 616 11645 21 -33 13030
> -
> 12.11.2016 E 15:42:00 118.1 -59.9 198.9 617 11721 19 -40 13030
> -
> 12.11.2016 15:44:00 127.0 -60.4 204.2 619 11767 16 -47 13030
> -
> 12.11.2016 15:46:00 136.1 -60.6 209.5 621 11782 13 -55 13030
> -
> 12.11.2016 15:48:00 145.1 -60.5 214.8 623 11767 9 -62 13030
> -
> 12.11.2016 15:50:00 154.1 -60.1 220.1 624 11723 3 -69 13030
> -
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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: Sat, 12 Nov 2016 11:41:08 -0800
From: Greg D <ko6th.greg@xxxxx.xxx>
To: Amsat BB <AMSAT-BB@xxxxx.xxx>
Subject: Re: [amsat-bb] Tracking EO 79
Message-ID: <58277054.4060604@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Didn't AO-27 do something very similar? There was an application for it
that did the calculations. I forget who the author was; perhaps it (the
program, not the author) could be modified for EO-79?
Greg KO6TH
Paul Stoetzer wrote:
> It's basically calibrated for mid-northern latitudes now, so we should hear
> it on daytime NA passes.
>
> It wouldn't be difficult to write a script to calculate on and off times.
>
> 73,
>
> Paul, XE3/N8HM (currently in Progreso, Yucat?n, Mexico)
>
> On Sat, Nov 12, 2016 at 13:00 Alan <wa4sca@xxxxx.xxx> wrote:
>
>> Sean,
>>
>> SatPC32 and some other tracking programs have a method of generating a
>> list of times which include when
>> the satellite is eclipsed. Taking WinListen as an example, you can
>> generated a list, note the times it
>> exits eclipse, calculate with active window, and then compare with your
>> local passes. It sounds
>> cumbersome, but should only take a couple of minutes per day.
>>
>> 73s,
>>
>> Alan
>> WA4SCA
>>
>>
>> 12.11.2016 E 15:36:00 92.9 -56.9 183.0 612 11398 24 -18 13030
>> -
>> 12.11.2016 E 15:38:00 101.0 -58.2 188.3 614 11537 23 -25 13030
>> -
>> 12.11.2016 E 15:40:00 109.4 -59.2 193.6 616 11645 21 -33 13030
>> -
>> 12.11.2016 E 15:42:00 118.1 -59.9 198.9 617 11721 19 -40 13030
>> -
>> 12.11.2016 15:44:00 127.0 -60.4 204.2 619 11767 16 -47 13030
>> -
>> 12.11.2016 15:46:00 136.1 -60.6 209.5 621 11782 13 -55 13030
>> -
>> 12.11.2016 15:48:00 145.1 -60.5 214.8 623 11767 9 -62 13030
>> -
>> 12.11.2016 15:50:00 154.1 -60.1 220.1 624 11723 3 -69 13030
>> -
>>
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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: 3
Date: Sat, 12 Nov 2016 18:46:36 -0500
From: "Steve Appleton" <kc2lnc@xxxxxxxxx.xxx>
To: <camsat@xxx.xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] CAMSAT launched CAS-2T Technical Verification
Message-ID: <2EA8D07CF7FE4246838B9DCFB54822F2@xxxxxxx>
Content-Type: text/plain; charset="utf-8"
Does anyone know what the Norad Catalog ID number is for this bird? I see
41841 ? 41846 as possibilities.
------------------------------
Message: 4
Date: Sat, 12 Nov 2016 19:02:10 -0500
From: David G0MRF <g0mrf@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re Tracking EO-79
Message-ID: <1585afdc4a9-315d-45fa@xxxxxxxxxx.xxxx.xxx.xxx>
Content-Type: text/plain; charset=utf-8
Hi Sean.
Yes, it will be on for daytime passes which are all South to North
It will turn on in the Southern hemisphere and then stay on until it gets to
between 55 and 60 degrees North.
Because EO-79 is sun synchronous, it should repeat reliably each day.
For passes over NA it will be on as it approaches from the south and will
switch off somewhere over Northern Canada
Having switched off, the satellite has around 9-10 minutes to add some
charge to the battery before passing into the next eclipse
73
David G0MRF
Hi all-
A very basic question. If I understand correctly, EO79 will be QRV 27
minutes after being in sunlight, for a 25-minute period.
What is the best way to determine if EO79 will be audible when it passes
overhead? Should I simply aim for daytime passes?
Sean Kutzko Amateur Radio KX9X
------------------------------
Message: 5
Date: Sat, 12 Nov 2016 21:07:07 -0500
From: Lee McLamb <ku4os@xxx.xx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] ANS-318 AMSAT News Service Weekly Bulletins
Message-ID: <1576e13c-de49-3f0c-3e6d-58c6602612a7@xxx.xx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
AMSAT NEWS SERVICE
ANS-318
The AMSAT News Service bulletins are a free, weekly news and infor-
mation service of AMSAT North America, The Radio Amateur Satellite
Corporation. ANS publishes news related to Amateur Radio in Space
including reports on the activities of a worldwide group of Amateur
Radio operators who share an active interest in designing, building,
launching and communicating through analog and digital Amateur Radio
satellites.
The news feed on http://www.amsat.orgpublishes news of Amateur
Radio in Space as soon as our volunteers can post it.
Please send any amateur satellite news or reports to:
ans-editor at amsat.org.
In this edition:
* CAMSAT launched CAS-2T Technical Verification Satellite
* Listening to the 2016 AMSAT Annual Meeting
* Special Awards for the 2016 AMSAT Symposium at Sea
* EO79/FUNcube-3 Enters Service for the Amateur Radio Community
* Ham Radio Now Webcast Sunday Seminar From the ARRL/TAPR DCC
* JAXA to Launch Satellites with Ham Radio Payloads to ISS
SB SAT @ AMSAT $ANS-318.01
ANS-318 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 318.01
From AMSAT HQ KENSINGTON, MD.
DATE November 13, 2016
To All RADIO AMATEURS
BID: $ANS-318.01
CAMSAT launched CAS-2T Technical Verification Satellite
CAS-2T a technical verification satellite for CAMSAT CAS-2 series amateur
radio satellite launched at 23:42, 9 November 2016, It is an 2U Cubsat
and will
not be separated from the final stage of rocket, so the orbital life may
be 10
to 30 days since the final stage of rocket will be re-entry atmosphere.
Amateur radio payloads:
CW Telemetry Beacon:435.710MHz
FM Transponder Uplink:145.925MHz
FM Transponder Downlink:435.615MHz
Launch vehicle: CZ-11(Y2) solid rocket
Launch time: 23:42, 9-Nov-2016
Epoch time: +620.615 seconds
Inclination degree: 97.400985 degrees
RA of node degree:
Eccentricity: 1.77E-4
Perigee degree: 328.206969 degrees
Mean anomaly degree: 198.226766 degrees
Period: 5685.564 seconds
Speed: 7607.496391 m/s
Longitude: 93.693693E
Latitude: 13.531945N
[ANS thanks Alan, BA1DU, for the above information]
---------------------------------------------------------------------
Listening to the 2016 AMSAT Annual Meeting
As part of the ?AMSAT Symposium @ Sea?, the AMSAT Annual Meeting will take
place on Sunday, 13 NOV 16 at 1300 CST on board Carnival Liberty as the
ship
transits back to Galveston, TX from Progreso, Mexico. The Annual Meeting
includes an overview of the ?State of AMSAT? by the AMSAT President
followed by
a Q&A whereby meeting attendees are encouraged to ask questions
addressed to
the Senior Leadership Team as well as to the Board of Directors. The
meeting
concludes with our recognition of AMSAT volunteers who have made a
significant
impact on behalf of AMSAT in 2016 through their efforts in support of AMSAT
Engineering, Field Operations, AMSAT Journal, Human Spaceflight,
Educational
Relations, Dayton Hamvention, and Operations as well as Presidential
Recognition.
The original intent was to make the Annual Meeting available via
Echolink so
that AMSAT members not attending the AMSAT Symposium @ Sea could
participate.
At prior Annual Meetings, Echolink was used to provide access to the Annual
Meeting for AMSAT members not attending Symposium with a reasonably good
level
of interest by those that have used this connection to hear the President?s
presentation and participate in the Q&A.
Given that internet access on board Carnival Liberty will not provide
reliable
EchoLink connections, A live EchoLink connection for this year?s Annual
Meeting
will not be available. However, the meeting will be recorded and the
expectation
is to have the recording available through the AMSAT website after the
conclusion of the cruise and an announcement will be made when it is
available.
[ANS thanks AMSAT President Barry Baines, WD4ASW, for the above
information]
---------------------------------------------------------------------
Special Awards for the 2016 AMSAT Symposium at Sea
Two unique awards are being offered during AMSAT?s 2016 Space
Symposium being held November 10-14, 2016 aboard the Carnival Liberty
cruise ship. The Landlubbers Award is available to amateur radio
operators who complete a two-way satellite QSO with any Symposium
attendee aboard the Carnival Liberty. The Sea Legs Award is available
to amateur radio operators who complete a two-way satellite QSO while
sailing aboard the Carnival Liberty during the Symposium. The awards
will be made available in PDF format for self-printing. Submit logs to
Paul Stoetzer, N8HM, via email to n8hm at amsat.org to apply for the
awards.
[ANS thanks Clayton, W5PFG, for the above information]
---------------------------------------------------------------------
EO79/FUNcube-3 Enters Service for the Amateur Radio Community
AMSAT-UK and AMSAT-NL working with ISIS BV are delighted to announce
that the
FUNcube U/V transponder, on the 2U CubeSat QB50p1, has now been
activated with a
regular schedule.
Due to power budget constraints the transponder cannot be operational
24/7 and
an orbit specific schedule has been developed. The transponder will
commence
operation 27 minutes after the spacecraft enters sunlight and will stay
on for a
period of 25 minutes. This schedule may be modified over the forthcoming
weeks
as a result of experience.imagesCAAFR7EH
The transponder frequencies are:
Uplink: 435.047-435.077 MHz LSB
Downlink: 145.935-145.965 MHz USB
Output power is approximately 400mW.
Qb50p1 was launched in June 2014, as a collaborative effort led by the von
Karman Institute and ISIS-BV, into a sun synchronous 620?600 km polar
orbit as a
precursor spacecraft for the QB50 mission. The primary function of the
satellite
was to test a number of the systems and science payloads. This phase has
now
been completed and we are grateful to VKI and ISIS BV for carrying this
transponder into space and, again, to ISIS, for developing and uploading
the
new, required, flight code.
[ANS thanks AMSAT-UK and AMSAT-NL for the above information]
---------------------------------------------------------------------
Ham Radio Now Webcast Sunday Seminar From the ARRL/TAPR DCC
Team Leader for the design and execution of the AMSAT Ground Terminal
Michelle Thompson W5NYV (@xxxxxxxxxx and AMSAT Board Member Bob McGwier,
N4HY, attended the 2016 ARRL/TAPR Digital Communications Conference. Both
presented the Sunday Seminar.
In these videos Michelle and Bob speak about the spectrum and cognitive
radio. Michelle expects technology to really disrupt the radio art in the
near future.
The Sunday Seminar spanned 3 hours. Gary Pearce, KN4AQ, presents the entire
seminar video via his Ham Radio Now webcast. The 3 parts can viewed at
these
links:
Part 1: https://www.youtube.com/watch?v=qOV7jab67B4
Part 2: https://www.youtube.com/watch?v=3V_u2vEY2CY
Part 3: https://www.youtube.com/watch?v=ciX5Jjn_Ipc
[ANS thanks Gary Pearce, KN4AQ, Ham Radio Now and TAPR for the above
information]
---------------------------------------------------------------------
JAXA to Launch Satellites with Ham Radio Payloads to ISS
Mineo Wakita JE9PEL reports on the AMSAT Bulletin Board that six
satellites with
amateur radio payloads are to be launched to the International Space
Station in
December.
JAXA announced to the public November 7 that seven nano satellites are
to be
installed in H-IIB Transfer Vehicle ?KOUNOTORI? (HTV) to be launched in
December. Satellites are only about 1U~3U in size and will conduct
experiments
aimed at realizing the space elevator which is expected to facilitate the
movement of Earth and Universe in the future. It?s the first time to
launch in
JAXA with seven satellites at a time.
HTV6 Launch: 1326 UT, Dec. 9, 2016 at the Tanegashima Space Center, Japan.
Downlink Beacon Mode
AOBA-VeloxIII 437.375 437.375 1k2 AFSK,CW
ITF-2 437.525 437.525 1k2 FM,CW
STARS-C (Mother) 437.405 437.245 1k2 FM,CW
STARS-C (Daughter) 437.425 437.255 1k2 FM,CW
WASEDA-Sat3 437.290 437.290 1k2 PCM-FSK,CW
TuPod 437.425 437.425 1k2 GMSK,CW
H-II Transfer Vehicle ?KOUNOTORI? (HTV), JAXA
http://global.jaxa.jp/projects/rockets/htv/index.html
AOBA-VeloxIII Kyusyu Institute of Technology
http://aoba2016.blog.fc2.com/
EGG University of Tokyo / Nihon University
http://repository.exst.jaxa.jp/dspace/bitstream/a-is/2961/1/SA6000021010.pdf
FREEDOM Tohoku University / Nakashimada Engineering Works, Ltd
http://www.tohoku.ac.jp/japanese/newimg/pressimg/tohokuuniv-
press_20140926_01web.pdf
ITF-2 University of Tsukuba
http://yui.kz.tsukuba.ac.jp/en/
TuPOD Gauss Srl
http://www.gaussteam.com/tupod-almost-ready-for-launch/
STARS-C Shizuoka University
http://stars.eng.shizuoka.ac.jp/english.html
WASEDA-SAT3 Waseda University
http://www.miyashita.mmech.waseda.ac.jp/Waseda-Sat3/
[ANS thanks Mineo, JE9PEL, for the above information]
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining
donors to AMSAT Project Funds, will be eligible to receive addi-
tional benefits. Application forms are available from the AMSAT
Office.
Primary and secondary school students are eligible for membership
at one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the stu-
dent rate for a maximum of 6 post-secondary years in this status.
Contact Martha at the AMSAT Office for additional student membership
information.
73,
This week's ANS Editor,
Lee McLamb, KU4OS
ku4os at amsat dot org
------------------------------
Message: 6
Date: Sun, 13 Nov 2016 11:46:26 +0800 (CST)
From: "Alan Kung" <camsat@xxx.xxx.xxx>
To: "Steve Appleton" <kc2lnc@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] CAMSAT launched CAS-2T Technical Verification
Message-ID: <699e3615.af5.1585bcb18a3.Coremail.camsat@xxx.xxx.xxx>
Content-Type: text/plain; charset=GBK
2016-066E(CAS-2T)
1 41845U 16066E 16316.63283635 -.00000070 00000-0 00000+0 0 9991
2 41845 98.7801 321.0295 0366641 173.7754 186.7993 14.37655733 231
73
Alan, BA1DU
? 2016-11-13 07:46:36?"Steve Appleton" <kc2lnc@xxxxxxxxx.xxx> ???
Does anyone know what the Norad Catalog ID number is for this bird? I see
41841 ? 41846 as possibilities.
------------------------------
Message: 7
Date: Sun, 13 Nov 2016 11:55:11 +0800 (CST)
From: "Alan Kung" <camsat@xxx.xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] XW-1/HO-68 Restores work in this morning
Message-ID: <1860da21.b56.1585bd31a5f.Coremail.camsat@xxx.xxx.xxx>
Content-Type: text/plain; charset=GBK
Hello,
China's professional space TT&C network monitored XW-1 telemetry in this
morning, the Satellite has restored work, if someone heard the CW beacon
signal at 435.790 MHz, Please let me know.
Thanks & 73!
Alan, BA1DU
------------------------------
Message: 8
Date: Sat, 12 Nov 2016 23:46:42 -0500
From: <n4csitwo@xxxxxxxxx.xxx>
To: <ariss-press@xxxxx.xxx>, "amsat-edu" <amsat-edu@xxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Upcoming ARISS contact with Col.legi Asuncion de
Ntra. Sra., Barcelona, Spain
Message-ID: <643EB486F01140C08A47CB46DD7820A8@xxx>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at Col?legi Asuncion de Ntra. Sra., Barcelona, Spain on 17 Nov.
The event is scheduled to begin at approximately 08:25 UTC. It is
recommended that you start listening approximately 10 minutes before this
time.The duration of the contact is approximately 9 minutes and 30 seconds.
The contact will be a telebridge between NA1SS and W6SRJ. The contact should
be audible over the west coast of the U.S. Interested parties are invited to
listen in on the 145.80 MHz downlink. The contact is expected to be
conducted in English.
In 2016, Col.legi Asuncion de Ntra. Sra. is celebrating the 140th
anniversary of the 1876 founding of the school.
The school has approximately 600 students of Kindergarden (from 3 to 6 years
of age), Primary (6-12 years old) and Secondary (from 12 to 16 years old)
and is located in Barcelona, in the Poblenou neighbourhood, belonging to
Sant Mart? district.
It would be very rewarding for all of us to finish the anniversary
contacting the International Space Station as the main activity of a set of
Interdisciplinary Didactic Projects and multiple age level participation
activities.
Our aim is to engage every student in these activities, which are not only
STEM/STEAM related, but also cover geography, languages, history and others.
Participants will ask as many of the following questions as time allows:
1. Since you are at zero gravity, do you get the feeling of being upright or
upside down?
2. How do you cope with the anxiety caused by being in such a small room
where you can barely move?
3. What surprised you the most the very first time you reached the space
station? Does it have a certain smell (like hospitals do)?
4. What is your current research about?
5. To compensate for bone and muscle loss caused by weightlessness, do you
take any dietary supplement to complement the physical exercise?
6. Would you be willing to travel to Mars? When do you think it will be
possible?
7. Have you experienced any dangerous situation during the spacewalks, for
example a space debris impact?
8. What differences have you come across between 3D printing on Earth and in
the station?
9. How do you think schools in the future should be so students can meet the
challenges of your research?
10. Do you have control over the station or is it controlled from earth? What
about in case of an emergency?
11. How long can you be outside the station during EVAs (extravehicular
activities)?
12. What is your opinion on the tourist space voyages? Do you think it will
be soon available for everyone?
13. What do you do when you are ill?
14. How do you spend your free time in the station?
15. What is the thing on the Earth that you miss the most?
16. Do you feel small compared to the hugeness of space?
17. How do the stars and the Earth look like from the space station?
18. Can you tell us about your daily life in the station?
19. What is the temperature and pressure inside and outside the space
station?
20. Where do you get all the power for the station to function properly?
PLEASE CHECK THE FOLLOWING FOR MORE INFORMATION ON ARISS UPDATES:
Visit ARISS on Facebook. We can be found at Amateur Radio on the
International Space Station (ARISS).
To receive our Twitter updates, follow @xxxxxxxxxxxx
Next planned event(s):
TDB
About ARISS:
Amateur Radio on the International Space Station (ARISS) is a cooperative
venture of international amateur radio societies and the space agencies that
support the International Space Station (ISS). In the United States,
sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American
Radio Relay League (ARRL), the Center for the Advancement of Science in
Space (CASIS) and National Aeronautics and Space Administration (NASA).
The primary goal of ARISS is to promote exploration of science, technology,
engineering, and mathematics (STEM) topics by organizing scheduled contacts
via amateur radio between crew members aboard the ISS and students in
classrooms or informal education venues. With the help of experienced
amateur radio volunteers, ISS crews speak directly with large audiences in a
variety of public forums. Before and during these radio contacts, students,
teachers, parents, and communities learn about space, space technologies,
and amateur radio. For more
information, see www.ariss.org, www.amsat.org, and www.arrl.org.
Thank you & 73,
David - AA4KN
---
This email has been checked for viruses by Avast antivirus software.
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------------------------------
Message: 9
Date: Sun, 13 Nov 2016 04:50:13 +0000 (UTC)
From: "Sean K." <kx9x@xxxxx.xxx>
To: David G0MRF <g0mrf@xxx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Re Tracking EO-79
Message-ID: <1300072724.2581741.1479012613624@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Thanks, David; most helpful!?Sean Kutzko Amateur Radio KX9X
From: David G0MRF via AMSAT-BB <amsat-bb@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Saturday, November 12, 2016 7:02 PM
Subject: [amsat-bb] Re Tracking EO-79
Hi Sean.
Yes, it will be on for daytime passes which are all South to North
It will turn on in the Southern hemisphere and then stay on until it gets to
between 55 and 60 degrees North.
Because EO-79 is sun synchronous, it should repeat reliably each day.
For passes over NA it will be on as it approaches from the south and will
switch off somewhere over Northern Canada
Having switched off, the satellite has around 9-10 minutes to add some
charge to the battery before passing into the next eclipse
73
David? G0MRF
Hi all-
A very basic question. If I understand correctly, EO79 will be QRV 27
minutes after being in sunlight, for a 25-minute period.
What is the best way to determine if EO79 will be audible when it passes
overhead? Should I simply aim for daytime passes?
Sean Kutzko Amateur Radio KX9X
? ?
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. 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.
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Message: 10
Date: Sun, 13 Nov 2016 06:40:36 +0000
From: Jean-Pierre Godet <godetj@xxxxxxx.xx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] CAMSAT launched CAS-2T Technical Verification
Message-ID: <0ac97563-77f5-0ac7-8d35-df14c900ffd7@xxxxxxx.xx>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi Steve !
On 12/11/2016 23:46, Steve Appleton wrote:
> Does anyone know what the Norad Catalog ID number is for this bird? I see
41841 ? 41846 as possibilities.
> ...
41845, (2016-066E), without any doute now. The Doppler correction agrees
100 % (good reception half an hour ago, orbit nr 45).
41846 is now well behind, and all the other birds are very far away.
73 !
J-P F5YG
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Message: 11
Date: Sun, 13 Nov 2016 11:55:46 -0500
From: Scott <scott23192@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Update on FunCube-3 / EO-79 Interference
Message-ID:
<CAJCSnOZt6zHddW6s_+sC3OTPJPjYAuhUAWnPasq=ZFX9L7OY1Q@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Yesterday I reported on my observation of a possible 25k-wide data stream
interfering with amateur CW & SSB on FunCube-3 / EO-79 (QB50P1). I was not
able to decode the data nor did I see any obvious match for a source
(terrestrial nor another satellite).
On today's 16:14 UTC pass over the USA East Coast, I saw the same wideband
stream resembling telemetry data but would like to add to yesterday's
comment.
>From watching numerous hams attempt to find their downlink signal or in
some cases make successful SSB or CW contacts, it became obvious that the
"data" stream that I was seeing was only present when someone was actively
transmitting through the transponder. No carrier on the uplink/downlink -
no wideband signal. But when there was an SSB or CW signal present, the
wideband stream would begin also.
Please note that the match is not EXACT... sometimes there was a slight
delay in the appearance of the wideband stream when the transponder was
activated. But when you watch it "live", the relationship was obvious.
I am not even remotely familiar enough with how a liner transponder works
offer any technical explanation for this behavior, but just wanted to add
my observations to the conversation.
I have uploaded a screen shot of my waterfall showing how the wideband
stream comes & goes in response to activation of the transponder at:
https://dl.dropboxusercontent.com/u/31460496/ham/2016-11-13--EO-79.png
73,
-Scott, K4KDR
Montpelier, VA USA
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Message: 12
Date: Sun, 13 Nov 2016 18:20:25 +0100
From: Dani EA4GPZ <daniel@xxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Update on FunCube-3 / EO-79 Interference
Message-ID: <82e0b165-e22e-356a-02c3-2cee6ca4a21a@xxxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
El 13/11/16 a las 17:55, Scott escribi?:
> I have uploaded a screen shot of my waterfall showing how the wideband
> stream comes & goes in response to activation of the transponder at:
> https://dl.dropboxusercontent.com/u/31460496/ham/2016-11-13--EO-79.png
Hi Scott,
I think that what you're seeing is just the noise floor of the
transponder. I have no experience with FUNcube-3, but your picture looks
very much like the noise floor I have seen on FUNcube-1. On overhead
passes, it's quiet noticeable, even with only a 3 element yagi.
Keep in mind that (usually) a linear transponder is running all the
time. It doesn't have to be activated by an uplink signal.
In general, AGC action may cause the transponder's noise floor to vary
with input signals. One expects that if there are strong signals the
transponder's noise floor will become weaker. This behaviour depends on
lots of design parameters, so this need not always be the case.
73,
Dani EA4GPZ.
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Message: 13
Date: Sun, 13 Nov 2016 12:47:17 -0500
From: David G0MRF <g0mrf@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re Update on FunCube-3 / EO-79 Interference
Message-ID: <1585ecceb3c-1f21-4ad6@xxxxxxxxxx.xxxx.xxx.xxx>
Content-Type: text/plain; charset=utf-8
Hi Scott.
Thanks for the dropbox image.- A picture is worth a thousand words as they
say.
What you can see in the image is the output of the transponder across its
25kHz passband.
If the signal was a little stronger you would see the level in the waterfall
rise across the entire 25kHz
As it is, you can see two distinct peaks, and some narrow band signals from
people transmitting up to the satellite.
The lower part of the picture shows how the signal received from the
satellite is changing with time.
This is probably the signal increasing and decreasing at your receiver as
the satellite slowly spins in its orbit
.- This is quite normal if you have a 'linear' antenna, say horizontal,
while the satellites antenna is moving from horizontal (giving a strong
signal to you)
to vertical - which will produce a much weaker output from your receiver.
Hope that helps.
David G0MRF
Yesterday I reported on my observation of a possible 25k-wide data stream
interfering with amateur CW & SSB on FunCube-3 / EO-79 (QB50P1). I was not
able to decode the data nor did I see any obvious match for a source
(terrestrial nor another satellite).
On today's 16:14 UTC pass over the USA East Coast, I saw the same wideband
stream resembling telemetry data but would like to add to yesterday's
comment......................
I have uploaded a screen shot of my waterfall showing how the wideband
stream comes & goes in response to activation of the transponder at:
https://dl.dropboxusercontent.com/u/31460496/ham/2016-11-13--EO-79.png
73,
-Scott, K4KDR
Montpelier, VA USA
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End of AMSAT-BB Digest, Vol 11, Issue 364
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