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CX2SA > SATDIG 03.01.17 07:27l 1028 Lines 31182 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Bad Tracker EEPROM (Bill Bordy, NJ1H)
2. Re: Bad Tracker EEPROM (Bill Bordy, NJ1H)
3. BY70-1 keps update (Matthew Stevens)
4. CW ACTIVITY DAY REPORT (rsoifer1@xxx.xxxx
5. Upcoming ARISS contact with Coll?ge Mathilde Marthe Faucher,
Allassac, France (n4csitwo@xxxxxxxxx.xxxx
6. Upcoming ARISS contact with Coll?ge Mathilde Marthe Faucher,
Allassac, France (n4csitwo@xxxxxxxxx.xxxx
7. Upcoming ARISS contact with Rainbow Middle School, Rainbow
City, AL (n4csitwo@xxxxxxxxx.xxxx
8. conifer/andrews 2.4 ghz "BBQ" grid dish for sale (Scott Olitsky)
9. BY70-1 Observation & Question (Scott)
10. Re: BY70-1 Observation & Question (Ted)
11. Re: BY70-1 Observation & Question (Mac A. Cody)
----------------------------------------------------------------------
Message: 1
Date: Sun, 1 Jan 2017 16:22:40 -0500
From: "Bill Bordy, NJ1H" <nj1h@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Bad Tracker EEPROM
Message-ID: <c9404f33-def6-124d-a8e7-370c18818385@xxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
I have had this happen and have corrected the error with a calibration.
In my case it didn't seem to be a permanent error and I have gone years
without having to calibrate.
The document LVB Tracker PCB Version 1-9.doc has instructions on how to
calibration the controller.
I have sent you a copy of the document directly.
73,
Bill
NJ1H
On 1/1/2017 11:00 AM, Joel Kandel wrote:
> Fellow members,
> I am getting a "Bad EEPROM data" message on my Tracker readout.
> I queried the office about a fix and Martha forwarded it to the appropriate
> Individuals. It's been a couple of months since my inquiry and have not
heard back.
> Is there anyone out there who can tell me where to find a new chip, or do
I have
> to scrap the unit and use a different tracking source?
> My unit was purchased around 2008. The readout says Firmware version 0.9.
> The board indicates version 1.2.
> Thanks in advance for your help and Happy New Year.
> Joel Kandel, KI4T
>
> Carried by dog sled
>
> _______________________________________________
> 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: Sun, 1 Jan 2017 16:16:22 -0500
From: "Bill Bordy, NJ1H" <nj1h@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxxx jikandel@xxxxxx.xxx
Subject: Re: [amsat-bb] Bad Tracker EEPROM
Message-ID: <350efc46-3d36-2391-b231-b7e86ff89b61@xxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
I have had this happen and have corrected the error with a calibration.
In my case it didn't seem to be a permanent error and I have gone years
without having to calibrate.
The document LVB Tracker PCB Version 1-9.doc has instructions on how to
calibration the controller.
I have sent you a copy of the document directly.
73,
Bill
NJ1H
On 1/1/2017 11:00 AM, Joel Kandel wrote:
> Fellow members,
> I am getting a "Bad EEPROM data" message on my Tracker readout.
> I queried the office about a fix and Martha forwarded it to the appropriate
> Individuals. It's been a couple of months since my inquiry and have not
heard back.
> Is there anyone out there who can tell me where to find a new chip, or do
I have
> to scrap the unit and use a different tracking source?
> My unit was purchased around 2008. The readout says Firmware version 0.9.
> The board indicates version 1.2.
> Thanks in advance for your help and Happy New Year.
> Joel Kandel, KI4T
>
> Carried by dog sled
>
> _______________________________________________
> 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: Mon, 2 Jan 2017 00:21:18 -0500
From: Matthew Stevens <matthew@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] BY70-1 keps update
Message-ID: <41441312-F140-4344-B72B-AFD9AAAC3362@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I've noticed a lot of people tweeting that they weren't able to hear BY70-1
on recent passes.
Most of the issue probably lies with the fact that the low orbit of the sat
is causing wide variations in pass times. The TLEs in the Amsat kep file
aren't updated often enough to keep up with these variations, so you might
try the keps from Celestrak
https://celestrak.com/NORAD/elements/tle-new.txt
These are updated several times a day, and should provide better tracking
than the Amsat keps.
- Matthew KK4FEM
Sent from my iPhone
------------------------------
Message: 4
Date: Mon, 2 Jan 2017 08:11:38 -0500
From: rsoifer1@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] CW ACTIVITY DAY REPORT
Message-ID: <1595f4e8387-57c8-5fbf8@xxxxxxxxxx.xxxx.xxx.xxx>
Content-Type: text/plain; charset=utf-8
I worked Mike, WA6ARA, and Wayne, NM3B, on FO-29. Tnx to both, and Happy
New Year to all.
73 Ray W2RS
------------------------------
Message: 5
Date: Mon, 2 Jan 2017 12:34:09 -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 Coll?ge Mathilde
Marthe Faucher, Allassac, France
Message-ID: <0612315B80934D0990159718C0997F14@xxx>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at Coll?ge Mathilde Marthe Faucher, Allassac, France on 04 Jan.
The event is scheduled to begin at approximately 11:16 UTC. The duration of
the contact is approximately 9 minutes and 30 seconds. The contact will be
direct between FX0ISS and F1IMF. The contact should be audible over France
and adjacent areas. Interested parties are invited to listen in on the
145.80 MHz downlink. The contact is expected to be conducted in French.
Allassac is a French town in the corr?ze department, in the new
Aquitaine-Limousin-Poitou-Charentes aera. There are 3.869 inhabitants. It is
20 kilometers north of Brive-la-gaillarde and 200 km north of Toulouse.
The Mathilde Marthe FAUCHER public middle school currently hosts 400 of
students in 16 classes. It is the students of 6th graduate participating in
the ARISS project.
Participants will ask as many of the following questions as time allows:
1. Doit-on avoir la citoyennet? fran?aise pour devenir spationaute fran?ais?
2. Pr?f?rez-vous ?tre chez vous ou dans l'espace?
3. Est-il important de savoir nager pour devenir spationaute?
4. De combien de centim?tres avez-vous grandi depuis que vous ?tes dans la
station?
5. A quelle fr?quence les spationautes m?nent-ils des exp?riences
scientifiques ? bord de l'lSS?
6. Est-il physiquement possible de pleurer en apesanteur?
7. Quelle est la plus belle chose que vous avez-vu dans l'espace?
8. Comment lavez-vous vos v?tements?
9. Quel est le danger que vous redoutez le plus ? bord de la station?
10. Les spationautes peuvent-ils entendre des impacts de m?t?orites sur la
station?
11. Comment organisez-vous vos soir?es?
12. Est-ce que les spationautes ?teignent les lumi?res la nuit?
13. Les spationautes peuvent-ils utiliser leur t?l?phone mobile dans
l'espace?
l4. Comment les astronautes peuvent-ils utiliser twitter ou les r?seaux
sociaux depuis l'espace?
15. Peut-on voir la pollution sur la terre depuis la station?
16. Produisez-vous beaucoup de d?chets par jour?
17. Est-ce que les spationautes se sentent seuls ? bord de l'lSS?
18. Quel est votre plus grand r?ve?
l9. Comment l'eau parvient-elle ? la station?
20. Souhaitez-vous aller sur une autre plan?te?
21. Quel est le fuseau horaire adopt? dans l'espace?
22. Les spationautes sont-ils plus stress?s lors des sorties dans l'espace?
Translated:
1. Do you need to be a French citizen to become a French spationaut?
2. Do you prefer being at home or in space?
3. Is it essential skill to know swimming to become an astronaut?
4. How many centimeters did you gain in height since you are in the Station?
5. How frequently do you run experiments in the ISS?
6. Is it physically possible to cry in micro-gravity?
7. What is the most beautiful thing you have seen in space?
8. How do you wash your clothes?
9. What is the hazard you fear the most in the station?
10. Is it possible to hear meteorite impacts on the Station ?
11. How do you spend your evenings after work?
12. Do you switch off the lights during your sleeping time?
13. Is it possible to use your mobile phone in the ISS?
l4. How could the astronauts use twitter or other social networks from
space?
15. is the earth pollution visible from the ISS?
16. Are you producing a lot of waste per day?
17. Could the astronauts feel alone onboard the ISS?
18. What is your most important dream?
l9. : How do you get water in the station?
20. Would you like to travel to another planet?
21. Which Time zone is used in space?
22. Are the spationauts particularly stressed during EVAs?
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):
1. Rainbow Middle School, Rainbow City, AL, direct via K4JMC
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Shane Kimbrough KE5HOD
Contact is a go for: Wed 2017-01-04 17:29 UTC
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
---
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------------------------------
Message: 6
Date: Mon, 2 Jan 2017 12:34:09 -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 Coll?ge Mathilde
Marthe Faucher, Allassac, France
Message-ID: <700B3F43697741E98D2D8909E499090C@xxx>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at Coll?ge Mathilde Marthe Faucher, Allassac, France on 04 Jan.
The event is scheduled to begin at approximately 11:16 UTC. The duration of
the contact is approximately 9 minutes and 30 seconds. The contact will be
direct between FX0ISS and F1IMF. The contact should be audible over France
and adjacent areas. Interested parties are invited to listen in on the
145.80 MHz downlink. The contact is expected to be conducted in French.
Allassac is a French town in the corr?ze department, in the new
Aquitaine-Limousin-Poitou-Charentes aera. There are 3.869 inhabitants. It is
20 kilometers north of Brive-la-gaillarde and 200 km north of Toulouse.
The Mathilde Marthe FAUCHER public middle school currently hosts 400 of
students in 16 classes. It is the students of 6th graduate participating in
the ARISS project.
Participants will ask as many of the following questions as time allows:
1. Doit-on avoir la citoyennet? fran?aise pour devenir spationaute fran?ais?
2. Pr?f?rez-vous ?tre chez vous ou dans l'espace?
3. Est-il important de savoir nager pour devenir spationaute?
4. De combien de centim?tres avez-vous grandi depuis que vous ?tes dans la
station?
5. A quelle fr?quence les spationautes m?nent-ils des exp?riences
scientifiques ? bord de l'lSS?
6. Est-il physiquement possible de pleurer en apesanteur?
7. Quelle est la plus belle chose que vous avez-vu dans l'espace?
8. Comment lavez-vous vos v?tements?
9. Quel est le danger que vous redoutez le plus ? bord de la station?
10. Les spationautes peuvent-ils entendre des impacts de m?t?orites sur la
station?
11. Comment organisez-vous vos soir?es?
12. Est-ce que les spationautes ?teignent les lumi?res la nuit?
13. Les spationautes peuvent-ils utiliser leur t?l?phone mobile dans
l'espace?
l4. Comment les astronautes peuvent-ils utiliser twitter ou les r?seaux
sociaux depuis l'espace?
15. Peut-on voir la pollution sur la terre depuis la station?
16. Produisez-vous beaucoup de d?chets par jour?
17. Est-ce que les spationautes se sentent seuls ? bord de l'lSS?
18. Quel est votre plus grand r?ve?
l9. Comment l'eau parvient-elle ? la station?
20. Souhaitez-vous aller sur une autre plan?te?
21. Quel est le fuseau horaire adopt? dans l'espace?
22. Les spationautes sont-ils plus stress?s lors des sorties dans l'espace?
Translated:
1. Do you need to be a French citizen to become a French spationaut?
2. Do you prefer being at home or in space?
3. Is it essential skill to know swimming to become an astronaut?
4. How many centimeters did you gain in height since you are in the Station?
5. How frequently do you run experiments in the ISS?
6. Is it physically possible to cry in micro-gravity?
7. What is the most beautiful thing you have seen in space?
8. How do you wash your clothes?
9. What is the hazard you fear the most in the station?
10. Is it possible to hear meteorite impacts on the Station ?
11. How do you spend your evenings after work?
12. Do you switch off the lights during your sleeping time?
13. Is it possible to use your mobile phone in the ISS?
l4. How could the astronauts use twitter or other social networks from
space?
15. is the earth pollution visible from the ISS?
16. Are you producing a lot of waste per day?
17. Could the astronauts feel alone onboard the ISS?
18. What is your most important dream?
l9. : How do you get water in the station?
20. Would you like to travel to another planet?
21. Which Time zone is used in space?
22. Are the spationauts particularly stressed during EVAs?
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):
1. Rainbow Middle School, Rainbow City, AL, direct via K4JMC
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Shane Kimbrough KE5HOD
Contact is a go for: Wed 2017-01-04 17:29 UTC
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.
https://www.avast.com/antivirus
------------------------------
Message: 7
Date: Mon, 2 Jan 2017 13:03:40 -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 Rainbow Middle School,
Rainbow City, AL
Message-ID: <C9D8F9930D6945068FE7784D3EDC65CA@xxx>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at Rainbow Middle School, Rainbow City, AL on 04 Jan. The event
is scheduled to begin at approximately 17:29 UTC. The duration of the
contact is approximately 9 minutes and 30 seconds. The contact will be
direct between N4ISS and K4JMC. The contact should be audible over the state
of Alabama and adjacent areas. Interested parties are invited to listen in
on the 145.80 MHz downlink. The contact is expected to be conducted in
English.
Our school is located in North East Alabama. We are a 6th - 8th grade
school of about 700 students. This is an exciting adventure for our students
to learn more about the challenges and opportunities of space exploration.
We hope to enliven their curiosity and interest through efforts and
experiences before, during, and after the ARISS contact. This also provides
our students the occasion to learn about amateur radio and how it works.
We have completed a variety of activities and lessons which have heightened
our anticipation for our contact date. Many of our students did not
understand the International Space Station or what it is used for before we
started this process. On October 19, and November 18, our 6th grade classes
joined to watch a replay of both ISS launches. It was very exciting to
watch Expedition Crew 49 and 50 begin their journey into orbit. We have
viewed tours of the ISS and have watched recent interviews with crew members
aboard the ISS. Many students have downloaded a NASA app to keep up with
current news and happenings. We are currently researching the crew members
of Expeditions 49 and 50 to understand their background and interests. Half
of the 6th grade curriculum focuses on the Sun Earth Moon System and
Planetary Systems. Various lab activities are helping us to explore gravity
on different planets, construct and utilize scale models of our solar
system, simulate different p
lanetary and solar system processes, and expand our student's overall
knowledge of the Solar System. After our contact in January we will be
continuing activities and research of space exploration, the ISS, and
amateur radio.
As teachers we have been energized as we have learned more and more about
the ISS and NASA. It has been exciting to share with our students in this
process of learning and preparation. We are amazed as we study our Earth
and beyond.
Participants will ask as many of the following questions as time allows:
1. What made you want to become an astronaut?
2. How does it feel to achieve something as cool as being in space?
3. Who did you look up to when you were young?
4. What was the hardest thing you went through while training to become an
astronaut?
5. During blast off, did you feel any physical pain or sickness?
6. Before launch what were you thinking?
7. How does being in space affect blood pressure?
8. Because it takes two days to get to the ISS, how do you eat?
9. What was the hardest challenge for you to overcome knowing that you would
be in space for a long period of time?
10. How, and how often, do you communicate with your family while aboard
the ISS?
11. Now that you have been in space a while, what simulations on Earth did
you find to be most helpful?
12. What's the most fun thing you do for entertainment while aboard the
ISS?
13. Does the change in gravity cause your daily chores and work to be
easier or harder?
14. What happens if you were to get sick in space?
15. Are the astronauts able to vote while in space?
16. How do you wash your dirty laundry while aboard the ISS?
17. While on ISS, do you miss Earth's ways of doing life?
18. Is there a minimum age limit for space travel?
19. What is one thing that you enjoy doing in space that you can't do on
Earth?
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):
TBD
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.
https://www.avast.com/antivirus
------------------------------
Message: 8
Date: Mon, 2 Jan 2017 15:18:40 -0600
From: Scott Olitsky <scottolitsky@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] conifer/andrews 2.4 ghz "BBQ" grid dish for sale
Message-ID:
<CAGcHbPhF1CoCzXwAXo6JOnUT-zvx77Qws5NZOnAYignkMHAZHA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
This has been sitting in the shed for a number of years. If interested,
please email me.
Scott
AC3A
------------------------------
Message: 9
Date: Mon, 2 Jan 2017 23:13:06 -0500
From: "Scott" <scott23192@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] BY70-1 Observation & Question
Message-ID: <A8703A7D2AF542B480D8F6223D2F2804@xxxxxxx>
Content-Type: text/plain; charset="UTF-8"
Happy New Year to everyone.
So for the second evening in a row, as I monitored BY70-1 for telemetry
packets, I noticed performance on the FM voice transponder that prompts me
to ask a question.
Specifically, I hear K8YSE getting into the satellite with a crystal
clearness that you would expect from a simplex QSO with someone in your
front yard. Unfortunately, he?s been by himself for the most part... a
station or two might try to get in but you just get fragments or a lot of
static.
As a novice, should that make me think that this satellite requires a lot of
ERP to get into cleanly? Or maybe with the TLE?s changing so rapidly, is
this sat just more difficult to track than the others?
One other variable tonight is the weather; I suppose anyone using a
hand-held antenna who normally works outside might be off the air because of
all the rain in parts of the country right now. Maybe it?s just a lot of
football on TV!
I know that any answer might be speculation, but when I hear something
happen on the air repeatedly it makes me want to see if I can learn the
cause (or possible causes).
Thanks!
-Scott, K4KDR
Montpelier, VA
twitter: @xxxxxxxxxx
------------------------------
Message: 10
Date: Mon, 2 Jan 2017 20:42:47 -0800
From: "Ted" <k7trkradio@xxxxxxx.xxx>
To: "'Scott'" <scott23192@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] BY70-1 Observation & Question
Message-ID: <000901d2657b$d59dff50$80d9fdf0$@xxxxxxx.xxx>
Content-Type: text/plain; charset="utf-8"
Scott, John, K8YSE is the Gold Standard, so I'm looking forward to his reply
to your question. (I'm waiting before dabbling with BY70-1, but we better be
quick !)
HNY and 73, Ted
K7TRK
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Scott
Sent: Monday, January 2, 2017 8:13 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] BY70-1 Observation & Question
Happy New Year to everyone.
So for the second evening in a row, as I monitored BY70-1 for telemetry
packets, I noticed performance on the FM voice transponder that prompts me
to ask a question.
Specifically, I hear K8YSE getting into the satellite with a crystal
clearness that you would expect from a simplex QSO with someone in your
front yard. Unfortunately, he?s been by himself for the most part... a
station or two might try to get in but you just get fragments or a lot of
static.
As a novice, should that make me think that this satellite requires a lot of
ERP to get into cleanly? Or maybe with the TLE?s changing so rapidly, is
this sat just more difficult to track than the others?
One other variable tonight is the weather; I suppose anyone using a
hand-held antenna who normally works outside might be off the air because of
all the rain in parts of the country right now. Maybe it?s just a lot of
football on TV!
I know that any answer might be speculation, but when I hear something
happen on the air repeatedly it makes me want to see if I can learn the
cause (or possible causes).
Thanks!
-Scott, K4KDR
Montpelier, VA
twitter: @xxxxxxxxxx
_______________________________________________
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: 11
Date: Mon, 2 Jan 2017 23:10:19 -0600
From: "Mac A. Cody" <maccody@xxx.xxx>
To: Scott <scott23192@xxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] BY70-1 Observation & Question
Message-ID: <def11a82-eb84-4f61-f601-9a64ea086045@xxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi Scott,
I can't speak for John K8YSE either, although he does very good at
getting into the birds. One thing that does help is that he has
two stations, K8YSE in EN91 and K8YSE/7 in DM43, which he operates
remotely. I actually listened to him work BY70-1 and SO-50 from
both stations on a single pass. Can't speak to the TX power or
antenna configuration he has.
I have been pretty successful with getting into BY70-1 with the
7W TX power on my satellite 'battle station'. There are a couple
of things to keep in mind regarding working BY70-1:
1) The TLEs of BY70-1 are changing rapidly, so it is advised to use
the TLEs provided through Celestrak New Launches.
2) The low perigee of its orbits makes for wickedly fast passes. I
just worked one that was 8 minutes long. I worked one a few days
ago that passed almost directly overhead and was a little over 6
minutes. Antenna pointing agility/accuracy are important.
3) It has been stated that BY70-1 has a narrow RX bandwidth.
Therefore, it is necessary to adjust your TX frequency often to get
in. On 12/29/2016, I posted a suggested frequency list for use with
channelized radios that I have found to work well from my own
experience.
Hope this helps.
Mac Cody / AE5PH
P.S. We had a QSO back on 12/22, so I recognized your call sign.
On 01/02/2017 10:13 PM, Scott wrote:
> Happy New Year to everyone.
>
> So for the second evening in a row, as I monitored BY70-1 for telemetry
packets, I noticed performance on the FM voice transponder that prompts me
to ask a question.
>
> Specifically, I hear K8YSE getting into the satellite with a crystal
clearness that you would expect from a simplex QSO with someone in your
front yard. Unfortunately, he?s been by himself for the most part... a
station or two might try to get in but you just get fragments or a lot of
static.
>
> As a novice, should that make me think that this satellite requires a lot
of ERP to get into cleanly? Or maybe with the TLE?s changing so rapidly, is
this sat just more difficult to track than the others?
>
> One other variable tonight is the weather; I suppose anyone using a
hand-held antenna who normally works outside might be off the air because of
all the rain in parts of the country right now. Maybe it?s just a lot of
football on TV!
>
> I know that any answer might be speculation, but when I hear something
happen on the air repeatedly it makes me want to see if I can learn the
cause (or possible causes).
>
> Thanks!
>
> -Scott, K4KDR
> Montpelier, VA
> twitter: @xxxxxxxxxx
> _______________________________________________
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expressed
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AMSAT-NA.
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Sent via amsat-bb@xxxxx.xxx.
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End of AMSAT-BB Digest, Vol 12, Issue 2
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