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CX2SA > SATDIG 11.06.20 22:51l 1032 Lines 29755 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. HF and Satellite antennas on one mast? (Rich Gopstein)
2. Pre amps (Albert Ozias)
3. Re: Pre amps (Bob Hammond)
4. Re: HF and Satellite antennas on one mast? (W3AB/GEO)
5. FoxTelem changed? (Mark Johns, K0JM)
6. FoxTelem changed? (Roy Dean)
7. Re: FoxTelem changed? (Mark L. Hammond)
8. Upcoming ARISS Contact Schedule as of 2020-06-11 18:30 UTC
(aj9n@???.????
9. Re: FoxTelem changed? (Burns Fisher)
10. Re: HF and Satellite antennas on one mast? (Rich Gopstein)
----------------------------------------------------------------------
Message: 1
Date: Thu, 11 Jun 2020 11:10:28 -0400
From: Rich Gopstein <rich@????????????.???>
To: AMSAT-BB@?????.???
Subject: [amsat-bb] HF and Satellite antennas on one mast?
Message-ID:
<CANsNeaqbiyVY+nWDN6LBV=OLgxBhTAempOSzsDi0gKAT=kh+ww@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I'm considering putting up a tower to get my satellite antennas off the
ground. As long as I'm doing that, I'm considering putting a small HF beam
up there too (maybe the 2 or 3 element SteppIR?).
Has anyone done that? Do you put the HF antenna below the AZ/EL setup?
How much room would I leave between them? BTW - I have the larger M2
satellite antennas, not the LEO-pack, so the antennas are mounted near the
middle of the booms, not at the ends.
I imagine I'd split the G-5500 into separate AZ and EL rotators, placing
the AZ rotator in the tower.
Thoughts?
Thanks.
Rich, KD2CQ
------------------------------
Message: 2
Date: Thu, 11 Jun 2020 16:04:42 +0000
From: Albert Ozias <alozias@????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] Pre amps
Message-ID:
<MWHPR02MB241487A7F2D15C2593BF8F78C0800@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="iso-8859-1"
I have used an AG-25 and an AG-35 mask mounted pre-amps which are no longer
used being my station was down sized. If anyone has interest in acquiring
both for moderate consideration contact me at alozias@????.??? or
N7EQF@?????.???.
------------------------------
Message: 3
Date: Thu, 11 Jun 2020 09:57:25 -0700
From: Bob Hammond <propgrinder@?????.???>
To: Albert Ozias <alozias@????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Pre amps
Message-ID:
<CAKoB7Or8bS1Fqu4UiAZAu61k1=-Sm6fPsKacyTCuHmd2OgRE1w@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I'll take them Albert.
Bob W7OTJ
On Thu, Jun 11, 2020 at 9:16 AM Albert Ozias via AMSAT-BB <
amsat-bb@?????.???> wrote:
> I have used an AG-25 and an AG-35 mask mounted pre-amps which are no
> longer used being my station was down sized. If anyone has interest in
> acquiring both for moderate consideration contact me at alozias@????.???
> or N7EQF@?????.???.
> _______________________________________________
> 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 4
Date: Thu, 11 Jun 2020 10:14:16 -0700
From: W3AB/GEO <w3ab@?????.???>
To: Rich Gopstein <rich@????????????.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] HF and Satellite antennas on one mast?
Message-ID: <0f61f9f7-f5bc-4348-9d8d-c48fa41a402a@?????.???>
Content-Type: text/plain; charset=UTF-8
That would work. Your AZ rotor will determine how big a HF beam you can
install. Don't forget to add in the Sat array for wind load. The spacing
will probably be determined by your coax feed to the Sat antennas.
?___
Sent from my two way wrist watch
73 de W3AB/GEO?
On Jun 11, 2020, 08:24, at 08:24, Rich Gopstein via AMSAT-BB
<amsat-bb@?????.???> wrote:
>I'm considering putting up a tower to get my satellite antennas off the
>ground. As long as I'm doing that, I'm considering putting a small HF
>beam
>up there too (maybe the 2 or 3 element SteppIR?).
>
>Has anyone done that? Do you put the HF antenna below the AZ/EL setup?
>How much room would I leave between them? BTW - I have the larger M2
>satellite antennas, not the LEO-pack, so the antennas are mounted near
>the
>middle of the booms, not at the ends.
>
>I imagine I'd split the G-5500 into separate AZ and EL rotators,
>placing
>the AZ rotator in the tower.
>
>Thoughts?
>
>Thanks.
>
>Rich, KD2CQ
>_______________________________________________
>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: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Thu, 11 Jun 2020 12:22:27 -0500
From: "Mark Johns, K0JM" <k0jm.mark@?????.???>
To: AMSAT-BB <amsat-bb@?????.???>
Subject: [amsat-bb] FoxTelem changed?
Message-ID:
<CADDbS5Dtvjrpy0PuY4eFqWZ6KVauZqgPG1Vq8Stna5bCUi=sAg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
For weeks I have been successfully capturing 30-60 telemetry frames per
pass on AO-91 and AO-92 with FoxTelem v.1.08z5.
But suddenly, over the past week or two, I'm lucky to capture 10-20 frames
in a pass -- sometimes as few as 1 or 2 frames for a 25 degree elevation
pass! The eye just doesn't seem to want to lock up, even when the downlink
signal is very strong.
Nothing has changed in my station. Is something different with the DUV
signals of the satellites, or with the program, or some screwy Windows
update, or something else that I'm missing? Anyone else seeing the same?
--
Mark D. Johns, K?JM
AMSAT Ambassador & News Service Editor
Brooklyn Park, MN USA EN35hd
-----------------------------------------------
"Heaven goes by favor; if it went by merit,
you would stay out and your dog would go in."
---Mark Twain
------------------------------
Message: 6
Date: Thu, 11 Jun 2020 14:03:59 -0400
From: Roy Dean <royldean@?????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] FoxTelem changed?
Message-ID:
<CADGPg2uE9FSoLxeFctnsTmLq6UODzn03y_7g42sy=dQtE_K2bA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
>
> Nothing has changed in my station. Is something different with the DUV
> signals of the satellites, or with the program, or some screwy Windows
> update, or something else that I'm missing? Anyone else seeing the same?
This is typical (at least for me). I've been running a dedicated FoxTelem
station (FCDP+ and a Raspberry Pi, 3/4 wave ground plane attic antenna) for
a couple of years and I've noticed that I can go for weeks only getting
about 20 to 50 frames a day, the all of a sudden I'll average 200 frames a
day for a couple of weeks. The running average seems to be about 50
frames a day.
Of course, there could also be a recent issue with one of the satellites or
your station.... who knows. Just giving you another data point.
--Roy
K3RLD
------------------------------
Message: 7
Date: Thu, 11 Jun 2020 14:22:35 -0400
From: "Mark L. Hammond" <marklhammond@?????.???>
To: "Mark Johns, K0JM" <k0jm.mark@?????.???>
Cc: AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] FoxTelem changed?
Message-ID:
<CAPRXzyqPzf6jBtp5=-br-G0jjxaBtGhQXj_Lmyt3ZuHO2ZRmkw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hi Mark,
Glad you're collecting frames! I haven't really seen a drop lately-at
least I haven't noticed. There is variability, usually due to changes in
times of the pass (e.g., is the transmitter even on at very odd hours in
the night?), and sometimes they can share a footprint, so you typically get
frames from one but not the other. So frames can vary.
I have from time to time seen that a restart of Foxtelem is necessary; I
don't do it daily, but close...not sure if the decoder just needs a restart
from time to time, or what. It's pretty stable and consistent, for sure.
I just do it more often than necessary so I can keep a watch on daily frame
rates (basically resetting the counter...)
You can watch what others are getting framewise here (thanks to spiffy
coding by Chris AC2CZ!) A bit of clicking and you get an idea of
daily/weekly/monthly frames captured.
http://www.amsat.org/tlm/leaderboard.php?id=0&db=FOXDB
Hope it clears up for you. Not sure this was any help, but I tried ;)
73,
Mark L. Hammond [N8MH]
AMSAT Director and Command Station
On Thu, Jun 11, 2020 at 1:27 PM Mark Johns, K0JM via AMSAT-BB <
amsat-bb@?????.???> wrote:
> For weeks I have been successfully capturing 30-60 telemetry frames per
> pass on AO-91 and AO-92 with FoxTelem v.1.08z5.
>
> But suddenly, over the past week or two, I'm lucky to capture 10-20 frames
> in a pass -- sometimes as few as 1 or 2 frames for a 25 degree elevation
> pass! The eye just doesn't seem to want to lock up, even when the downlink
> signal is very strong.
>
> Nothing has changed in my station. Is something different with the DUV
> signals of the satellites, or with the program, or some screwy Windows
> update, or something else that I'm missing? Anyone else seeing the same?
> --
> Mark D. Johns, K?JM
> AMSAT Ambassador & News Service Editor
> Brooklyn Park, MN USA EN35hd
> -----------------------------------------------
> "Heaven goes by favor; if it went by merit,
> you would stay out and your dog would go in."
> ---Mark Twain
> _______________________________________________
> 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
--
------------------------------
Message: 8
Date: Thu, 11 Jun 2020 18:25:51 +0000 (UTC)
From: aj9n@???.???
To: amsat-bb@?????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2020-06-11
18:30 UTC
Message-ID: <89785129.2045898.1591899951567@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Upcoming ARISS Contact Schedule as of 2020-06-11 18:30 UTC
?
Quick list of scheduled contacts and events:
?
I.E.S. Pedro de Valdivia, Villanueva de la Serena, Spain, Multi-point
telebridge via ON4ISS
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is Chris Cassidy KF5KDR
Contact is go for: Tue 2020-06-16 12:25:27 UTC 84 deg
?
Watch for live stream at: https://youtu.be/PyNqsTMqAoQ (***)
?
?
##############################################################################
##########################################################
?
ARISS would like to announce that Tony VK5ZAI has received a special award
(also thanks to ARISS mentor and telebridge operator Shane VK4KHZ for
letting us know):
?
Congratulations to Tony Hutchison VK5ZAI in being recognised and awarded the
Order of Australia medal?(AM)?in the June 8th Queens Birthday honours list.
?
Well done Tony!
?
Mr James Anthony HUTCHISON
Kingston SE SA 5275
For significant service to amateur radio, particularly to satellite and
space communication.
?
For those that don't know what Tony has done, here a few stats.? He has
mentored 65 ARISS schools and been the telebridge station for 58 ARISS
contacts.? Plus he was very involved with SAREX.
?
For even more info on Tony, check out these webpages (there are many more):
http://www.electric-web.org/amateur_index.htm??
https://www.youtube.com/watch?v=chcgLwFy1v0??
https://www.abc.net.au/news/2019-10-06/nasa-considers-amateur-radio-buff-part-
of-astronaut-family/11530046
?
The actual announcement can be found on page 7 of 28 at:
https://www.gg.gov.au/sites/default/files/2020-06/QB2020%20Gazette%20-%20O%20o
f%20A.PDF
?
##############################################################################
##########################################################
A multi-point telebridge contact means that each student will be on the
telebridge from their own home.
*************************************************
Looking for some stay at home activities related to science and for when you
are not playing on your radio?? Check out these links:??
?
?
>From ARISS Vice Chair Oliver Amend DG6BCE: ESA Astronauts to offer
inspiration during isolation in????? #SpaceConnectsUs
https://www.esa.int/Newsroom/Astronauts_to_offer_inspiration_during_isolation_
in_SpaceConnectsU
?
Celestron, the telescope, microscope, and sports optics folks, now has
something called #STEMINYOURBACKYARD that you can find on Instagram,
Facebook, or Twitter.? By the way, I don't work for Celestron or have any
business dealings with them and this is just something I saw.? Apparently
there are 10 free STEM activities covering Astronomy, Nature and Wildlife,
and The Microscopic World.? Check out:?
https://www.celestron.com/blogs/news/discover-stem-in-your-backyard
?
NASA has a STEM page with fun activities to do at home.? Check out
https://www.nasa.gov/stem
?
*************************************************
?
ARISS is very aware of the impact that COVID-19 is having on schools and the
public in general.? As such, we may have last minute cancellations or
postponements of school contacts.? As always, I will try to provide everyone
with near-real-time updates.?
?
The following schools have now been postponed or cancelled due to COVID-19:?
?
Postponed:
No additional schools
?
Cancelled:
No additional schools
?
?
?
The ARISS webpage is at https://www.ariss.org/ ???
?
Watch for future COVID-19 related announcements here also.
?
?
Note that there are links to other ARISS websites from this site.
?
The main page for Applying to Host a Scheduled Contact may be found at
https://www.ariss.org/apply-to-host-an-ariss-contact.html ???
ARISS Contact Applications (United States)
?
?
Note, all times are approximate. ?It is recommended that you do your own
orbital prediction?or start listening about 10 minutes before the listed
time.
All dates and times listed follow International Standard ISO 8601 date and
time format YYYY-MM-DD HH:MM:SS
?
The complete schedule page has been updated as of?2020-06-11 18:30 UTC. (***)
Here you will find a listing of all scheduled?school contacts, and
questions, other ISS related websites, IRLP and Echolink websites, and
instructions for any contact that may be streamed live.
?
https://www.amsat.org/amsat/ariss/news/arissnews.rtf
https://www.amsat.org/amsat/ariss/news/arissnews.txt
?
?
The successful school list has been updated as of 2020-05-17 11:30 UTC.
https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
?
?
?
The ARISS webpage is at https://www.ariss.org/ ???
Note that there are links to other ARISS websites from this site.
?
The main page for Applying to Host a Scheduled Contact may be found at
https://www.ariss.org/apply-to-host-an-ariss-contact.html ???
?
ARISS Contact Applications (United States)
?
The ARISS webpage is at https://www.ariss.org/ ???
Note that there are links to other ARISS websites from this site.
?
?
Message to US Educators
?
ARISS Contact Applications (United States)
?
The Proposal Window of February 1, 2020 to March 31, 2020 has now closed.
?
For future proposal information and more details such as expectations,
proposal guidelines and proposal form, and dates and times of Information
Webinars, go to www.ariss.org.
?
Please direct any questions to?ariss.us.education@?????.???.
?
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 ISS National Lab and National Aeronautics and
Space Administration (NASA). The primary goal of ARISS is to promote
exploration of science, technology, engineering, and mathematics (STEAM)
topics by organizing scheduled contacts via amateur radio between crew
members aboard the ISS and students in classrooms or public forms. Before
and during these radio contacts, students, educators, parents, and
communities learn about space, space technologies, and amateur radio. For
more information, see www.ariss.org.
?
******************************************************************************
**
ARISS Contact Applications (Europe, Africa and the Middle East)
?
Schools and Youth organizations in Europe, Africa and the Middle East
interested in setting up an ARISS radio contact with an astronaut on board
the International Space Station are invited to submit an application from
September to October and from February to April.
Please refer to details and the application form at
www.ariss-eu.org/school-contacts.? Applications should be addressed by email
to:? school.selection.manager@????????.???
?
ARISS Contact Applications (Canada, Central and South America, Asia and
Australia and Russia)
?
Organizations outside the United States can apply for an ARISS contact by
filling out an application.? Please direct questions to the appropriate
regional representative listed below. If your country is not specifically
listed, send your questions to the nearest ARISS Region listed. If you are
unsure which address to use, please send your question to the ARISS-Canada
representative; they will forward your question to the appropriate
coordinator.
?
For the application, go to:? https://www.ariss.org/ariss-application.html.
ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to:
ve3tbd@?????.???
ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to:
ariss@???????.???? Japan Amateur Radio League (JARL) https://www.jarl.org/
ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/
?
?
******************************************************************************
ARISS is always glad to receive listener reports for the above contacts.?
ARISS thanks everyone in advance for their assistance.? Feel free to send
your reports to aj9n@?????.??? or aj9n@???.???.
?
Listen for the ISS on the downlink of 145.8? MHz.
?
******************************************************************************
*
?
All ARISS contacts are made via the Kenwood radio unless otherwise noted.
?
******************************************************************************
*
Several of you have sent me emails asking about the RAC ARISS website and
not being able to get in. ?That has now been changed to https://www.ariss.org/
?
Note that there are links to other ARISS websites from this site.
?
****************************************************************************
Looking for something new to do?? How about receiving DATV from the ISS??
Please note that the HamTV system has been brought back to earth for
troubleshooting.? Please monitor ARISS-EU or ARISS-ON for the very latest
news on the troubleshooting efforts.?
?
If interested, then please go to the ARISS-EU website for complete details.?
Look for the buttons indicating Ham Video.????????????
?
http://www.ariss-eu.org/
?
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight.? Contact Kerry at kbanke@?????????.???
?
?
The HamTV webpage:? https://www.amsat-on.be/hamtv-summary/
?
?
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
?
Francesco IK?WGF with 140
Satoshi 7M3TJZ with 138
Sergey RV3DR with 133
Gaston ON4WF with 123
?
****************************************************************************
The webpages listed below were all reviewed for accuracy. Out of date
webpages were removed, and new ones have been added.? If there are additional
ARISS websites I need to know about, please let me know.
?
?
?
Total number of ARISS ISS to earth school events is 1389.
Each school counts as 1 event.??????????????????????????????????
Total number of ARISS ISS to earth school contacts is 1322.
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 48.
?
A complete year by year breakdown of the contacts may be found in the
file.
https://www.amsat.org/amsat/ariss/news/arissnews.rtf
?
Please feel free to contact me if more detailed statistics are needed.
?
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The following US states and entities have never had an ARISS contact:
South Dakota, Wyoming, American?Samoa, Guam, Northern Marianas Islands, and
the Virgin Islands.
?
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
?
QSL information may be found at:
https://www.ariss.org/qsl-cards.html
?
ISS callsigns: DP?ISS, IR?ISS, NA1SS, OR4ISS, RS?ISS
?
****************************************************************************
Frequency chart for packet, voice, and crossband repeater modes showing
Doppler correction as of 2005-07-29 04:00 UTC
https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction.
rtf
Check out the Zoho reports of the ARISS contacts
?
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
?
Exp. 62 now on orbit
Chris Cassidy KF5KDR
Anatoli Ivanishin
Ivan Vagner
?
SpaceX-Demo2 now on orbit
Welcome aboard!
Bob Behnken KE5GGX
Doug Hurley
?
****************************************************************************
73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors
?
?
?
?
?
?
?
------------------------------
Message: 9
Date: Thu, 11 Jun 2020 16:12:15 -0400
From: Burns Fisher <wb1fj-bb@??????.??>
To: "Mark L. Hammond" <marklhammond@?????.???>
Cc: AMSAT-BB <amsat-bb@?????.???>, "Mark Johns, K0JM"
<k0jm.mark@?????.???>
Subject: Re: [amsat-bb] FoxTelem changed?
Message-ID:
<CABX7KxXFVUBXkor0=HF8BGBH32PMZtj5bPnhozYY7myrPYo0hw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
So first, to answer your question, afaik, there has been no change in the
satellite downlink.
My "catch" also varies, but it usually depends on the orbit and the timing
(lots fewer people on in the middle of the night, and thus less time that
the transmitter is on).
However, you said that your eye does not seem to "lock up" despite a strong
signal. Does that mean that you see a big "bump" on the frequency (FFT)
display, but you do not see an eye? Or you see an eye but no new frames?
If you don't see an eye, I might suspect that the frequency is off. Either
your SDR's local oscillator has changed a bit or if you are using "FoxTelem
Calculates Doppler" your keps are getting way out of date. They should be
updated regularly, but you never know. It should also not be all that
fussy with FM satellites, but again...YNNK.
If you do see a good eye, watch at the bottom. You will see light numbers
that say "errors" and "erasures". At least you will see them on the frames
that you get. It would be interesting to know how high those are. For a
good strong signal, it should be in the single digits. If it is a bigger
number, that is probably one level of explanation.
Also, how high is the noise floor and the peak signal on your FFT display?
Too high can be as bad as too low. You might play with your preamp (if
any) and the LNA and Mixer Gain within the FunCubeDongle (check boxes on
the "input' page of FoxTelem)
Good luck and 73,
Burns WB1FJ
On Thu, Jun 11, 2020 at 2:25 PM Mark L. Hammond via AMSAT-BB <
amsat-bb@?????.???> wrote:
> Hi Mark,
>
> Glad you're collecting frames! I haven't really seen a drop lately-at
> least I haven't noticed. There is variability, usually due to changes in
> times of the pass (e.g., is the transmitter even on at very odd hours in
> the night?), and sometimes they can share a footprint, so you typically get
> frames from one but not the other. So frames can vary.
>
> I have from time to time seen that a restart of Foxtelem is necessary; I
> don't do it daily, but close...not sure if the decoder just needs a restart
> from time to time, or what. It's pretty stable and consistent, for sure.
> I just do it more often than necessary so I can keep a watch on daily frame
> rates (basically resetting the counter...)
>
> You can watch what others are getting framewise here (thanks to spiffy
> coding by Chris AC2CZ!) A bit of clicking and you get an idea of
> daily/weekly/monthly frames captured.
>
> http://www.amsat.org/tlm/leaderboard.php?id=0&db=FOXDB
>
> Hope it clears up for you. Not sure this was any help, but I tried ;)
>
> 73,
>
> Mark L. Hammond [N8MH]
> AMSAT Director and Command Station
>
> On Thu, Jun 11, 2020 at 1:27 PM Mark Johns, K0JM via AMSAT-BB <
> amsat-bb@?????.???> wrote:
>
> > For weeks I have been successfully capturing 30-60 telemetry frames per
> > pass on AO-91 and AO-92 with FoxTelem v.1.08z5.
> >
> > But suddenly, over the past week or two, I'm lucky to capture 10-20
> frames
> > in a pass -- sometimes as few as 1 or 2 frames for a 25 degree elevation
> > pass! The eye just doesn't seem to want to lock up, even when the
> downlink
> > signal is very strong.
> >
> > Nothing has changed in my station. Is something different with the DUV
> > signals of the satellites, or with the program, or some screwy Windows
> > update, or something else that I'm missing? Anyone else seeing the same?
> > --
> > Mark D. Johns, K?JM
> > AMSAT Ambassador & News Service Editor
> > Brooklyn Park, MN USA EN35hd
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------------------------------
Message: 10
Date: Thu, 11 Jun 2020 16:37:47 -0400
From: Rich Gopstein <rich@????????????.???>
To: "W3AB/GEO" <w3ab@?????.???>
Cc: AMSAT-BB@?????.???
Subject: Re: [amsat-bb] HF and Satellite antennas on one mast?
Message-ID:
<CANsNeaozM2tPSMrKOU=2F3ZH2hf3zW0wDFGFZs8-gF0LjC+0qQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Thanks. A LEO-pack might be a better choice for stacking then. Since the
coax wouldn't hang down as far. Also less wind area...
On Thu, Jun 11, 2020, 1:14 PM W3AB/GEO <w3ab@?????.???> wrote:
> That would work. Your AZ rotor will determine how big a HF beam you can
> install. Don't forget to add in the Sat array for wind load. The spacing
> will probably be determined by your coax feed to the Sat antennas.
>
> ___
> Sent from my two way wrist watch
> 73 de W3AB/GEO
> On Jun 11, 2020, at 08:24, Rich Gopstein via AMSAT-BB <amsat-bb@?????.???>
> wrote:
>>
>> I'm considering putting up a tower to get my satellite antennas off the
>> ground. As long as I'm doing that, I'm considering putting a small HF beam
>> up there too (maybe the 2 or 3 element SteppIR?).
>>
>> Has anyone done that? Do you put the HF antenna below the AZ/EL setup?
>> How much room would I leave between them? BTW - I have the larger M2
>> satellite antennas, not the LEO-pack, so the antennas are mounted near the
>> middle of the booms, not at the ends.
>>
>> I imagine I'd split the G-5500 into separate AZ and EL rotators, placing
>> the AZ rotator in the tower.
>>
>> Thoughts?
>>
>> Thanks.
>>
>> Rich, KD2CQ
>> ------------------------------
>>
>> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
Opinions expressed
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AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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>>
>>
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@?????.???.
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AMSAT-NA.
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------------------------------
End of AMSAT-BB Digest, Vol 15, Issue 192
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