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CX2SA > SATDIG 02.10.18 17:06l 1039 Lines 31525 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Upcoming ARISS contact with Pell Elementary School, Newport,
RI (n4csitwo@?????????.????
2. Re: How many satellites have you worked? (David Giles)
3. Re: How many satellites have you worked? (Bruce)
4. FoxTelemetry on AO-91 and AO-92 (Hasan al-Basri)
5. Re: How many satellites have you worked? (Mike Seguin)
6. Re: FoxTelemetry on AO-91 and AO-92 (Paul Stoetzer)
7. Re: How many satellites have you worked? (jeff griffin)
8. Re: FoxTelemetry on AO-91 and AO-92 (JoAnne Maenpaa)
9. Feeding Two Arrow Antennas for X-Polarization (Frank Karnauskas)
10. Re: FoxTelemetry on AO-91 and AO-92 (Stephen E. Belter)
11. Re: FoxTelemetry on AO-91 and AO-92 (Burns Fisher)
----------------------------------------------------------------------
Message: 1
Date: Mon, 1 Oct 2018 22:18:41 -0400
From: <n4csitwo@?????????.???>
To: <amsat-bb@?????.???>, <ariss-press@?????.???>
Subject: [amsat-bb] Upcoming ARISS contact with Pell Elementary
School, Newport, RI
Message-ID: <BDC9872BB4534F6797B7AC41E2CF8B9B@???>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at Pell Elementary School, Newport, RI on 02 Oct. The event is
scheduled to begin at approximately 17:45 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 OR4ISS and ON4ISS. The contact should be audible over
eastern portions of Europe. Interested parties are invited to listen in on
the 145.80 MHz downlink. The contact is expected to be conducted in English.
Watch for a live simulacast at: http://bit.ly/RIspacechat3 OR
https://livestream.com/accounts/9685187/ISS2018 .
Pell Elementary School is Newport, Rhode Island's only grades K-4 school,
with student population of 950. The school's namesake, Claiborne de Borda
Pell served six terms as a U.S. senator from 1961 to 1997. Senator Pell
championed the "Basic Educational Opportunity Grant," popularly known as
the "Pell Grant." Millions of low-income students have attained
post-secondary education through the benefit of this federal grant program.
Pell believed education should be the right of every citizen, to better
their own life, and to strengthen our nation.
Pell Elementary has a diverse, multicultural population due in part to the
nearby U.S. Naval War College which attracts many foreign naval officers and
their families. Our English language learner population is 12%, while 57%
of our students are children of color, and 65% qualify for free (or reduced
price) lunch.
Teachers at Pell School regularly incorporate science, technology,
engineering, and math (STEM) exploration into their classroom. Students
attend weekly STEM classes during which they tackle real-world challenges.
They are introduced to the "Engineering Design Process," coding, and careers
in STEM fields. Kindergarten and first grade students explore computational
thinking using a variety of on and off-line algorithmic tools. Older
students are introduced to coding using MIT Media Lab's Scratch and Code.org.
Our faculty encourages students to take risks, solve problems, engage in
experiential learning, and collaborate. Pell students have engaged in
space-related and radio activities ahead of this event which also coincides
with "World Space Week, " a United Nations-sponsored annual initiative
geared to strengthen the link between space and society.
The space chat will be the highlight of the week, with activities planned,
in the following week, to celebrate this year's theme, "Space Unites the
World." With help from the Amateur Radio aboard the ISS (ARISS) volunteers
around the world and our community partners, Pell students will witness
"Rhode Island Space Chat #3." Four hundred students and guests are expected
inside the school gymnasium with many others watching via livestream.
We are excited and honored to participate in this unique, once-in-a-lifetime
opportunity
Participants will ask as many of the following questions as time allows:
1. What time do you wake up and what is the first thing you do?
2. My dad likes to drink coffee; do you have good tasting coffee on the ISS?
3. Does someone make you shower every day?
4. How do you celebrate your birthdays?
5. Do you ever get presents delivered to you from Earth?
6. What kinds of games do you play with your crew?
7. Why aren't there more girl astronauts?
8. What timezone do you follow?
9. Do you wash your clothes in space?
10. Where does the ISS trash go?
11. How do you keep the ISS clean and healthy?
12. Do you have to wash down the outside of the ISS and its solar panels,
like a car gets washed?
13. Do you have a secret room that gives you privacy?
14. Why are spacesuits always white?
15. How many astronauts can go on a spacewalk at once?
16. How do you prepare for a spacewalk?
17. We grow tomatoes at school. Do you grow plants using hydroponics?
18. I'm Russian; do you think there are other life forms in the cosmos?
19. How do you eat without choking when there's no gravity to hold down the
food?
20. How would you feel if you didn't exercise and then returned to Earth?
21. Who inspired you to be an astronaut?
22. What did you study in college?
23. Do space plants grow much faster when using plant food?
24. How do you handle a serious medical emergency?
25. As principal, I am the director of learning at school. Who is the
leader on the ISS?
26. Are there any musical instruments on the ISS?
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 @????????????
Next planned event(s):
Amur University, direct via TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Sergei Propopev
Contact is a go for Wed 2018-10-10 08:00 UTC
Kursk University, direct via TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Sergei Propopev
Contact is a go for Fri 2018-10-12 10:40 UTC
If you are interested in applying for an ARISS contact, please go to
http://www.ariss.org/apply-to-host-an-ariss-contact.html
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 informa
tion, see www.ariss.org, www.amsat.org, and www.arrl.org.
Thank you & 73,
David - AA4KN
---
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https://www.avast.com/antivirus
------------------------------
Message: 2
Date: Tue, 2 Oct 2018 15:48:42 +0930
From: David Giles <vk5dg@?????????.??.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] How many satellites have you worked?
Message-ID: <6834ea44-ebcd-ea47-9e60-d95a46cdec2a@?????????.??.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Started in 1997 with:
RS-10??? V/H
AO-16??? packet and later voice
RS-12??? V/H
Got serious with AO-40 using mode U/S.
UO-14??? V/U FM
ISS U/V repeater mode
AO-7???? U/V and V/H SSB
FO-20??? U/V SSB
FO-29??? V/U SSB, didn't try the BBS
SO-50??? V/U FM
AO-51??? V/U, L/U, but mostly on V/S
VO-52??? U/V SSB
DO-64??? U/V SSB
SO-67??? V/U FM
HO-68??? V/U SSB
Currently
AO-73??? U/V SSB
AO-85??? U/V FM
AO-91??? U/V FM
AO-92??? U/V and L/V FM
XW-2A, B, C, and F? U/V? SSB
CAS-4A and B??? SSB
Listened to many more and sent in reports.? Occasionally got a QSL card
back.
Missed out on AO-10, AO-13 and SO-35.? Too far from the equator for IO-86.
Total talked through is 24.? Most QSOs made have been through AO-40.?
Most for a LEO is with AO-51.
AO-91 is the most popular at the moment.
73 de David VK5DG
On 2/10/18 9:46 am, k6vug@?????????.??? wrote:
> (taking Patrick's format)
>
> started with
> AO-27??????? - FM
> AO-51??????? - FM
> ISS??????????? - Packet and FM repeater
>
> struggled with
> AO-85??????? - FM
> SO-50??????? - FM
>
> having great time with
> AO-91??????? - FM
> AO-92??????? - FM (V/U only)
>
> initial SSB learning with
> FO-29??????? - SSB
> VO-52??????? - SSB
>
> easy SSB sats
> XW-2A??????? - SSB
> XW-2B??????? - SSB
> XW-2C??????? - SSB
> XW-2D??????? - SSB
> XW-2F??????? - SSB
>
> very loud SSB ones
> CAS-4A????? - SSB
> CAS-4B????? - SSB
>
>
> 73!
> Umesh
> K6VUG
>
>
> On Monday, October 1, 2018, 2:06:05 PM PDT, H. Stephen Nipper
<stephennipper@?????.???> wrote:
>
> Thanks! Patrick.? I have worked other satellites and hams other than you.
> I only mentioned MIR as a reminder that would be one that you could add to
> the list. MIR was the first space contact that I made, and at that time I
> started gathering equipment and planning my station.? The station didn't
> come on board until I had time after retirement to put it all together.
> And many thanks to Gene W4IMT for pushing me to get my station up and
> running.
>
> Thanks Patrick for checking and asking me.
>
> Stephen Nipper
> N7DJX
> Boise
>
> On Mon, Oct 1, 2018 at 1:13 PM Patrick STODDARD (WD9EWK/VA7EWK) <
> amsat-bb@??????.???> wrote:
>
>> Steve,
>>
>> I think you may be missing Paul's question. Paul wasn't asking
>> for us to make a list of all satellites. Paul was asking about
>> the satellites we have worked. For some, that list would include
>> Mir, AO-10, or AO-13. For others, the list would probably have
>> only the newer satellites, with possibly AO-7 from the 1970s
>> or FO-29 from the mid-1990s in the list.
>>
>> I have worked you on SO-50 and the 3 Fox-1 (AO-85, AO-91, AO-92)
>> satellites, going back to 2016. You mentioned Mir. Have you
>> worked any other satellites, in addition to these 5?
>>
>>
>> 73!
>>
>>
>>
>>
>>
>> Patrick WD9EWK/VA7EWK
>> http://www.wd9ewk.net/
>> Twitter: @?????? or http://twitter.com/WD9EWK
>>
>>
>>
>>
>> On Mon, Oct 1, 2018 at 7:01 PM H. Stephen Nipper <stephennipper@?????.???>
>> wrote:
>>
>>> Don't forget MIR.? Worked it on packet years ago.
>>>
>>> Stephen Nipper
>>> N7DJX
>>>
>>> <snip>
>>>
------------------------------
Message: 3
Date: Mon, 1 Oct 2018 16:28:20 -0500
From: Bruce <kk5do@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] How many satellites have you worked?
Message-ID: <C2D4E94D-BBA9-467F-8748-E3A969975EF1@?????.???>
Content-Type: text/plain; charset=us-ascii
I bet there were only 3 of us that made a contact through Mir when they had
their 70cm radio on. Andy, W5ACM, myself and a station in Colorado. Was
awesome with an HT and whip antenna.
73...bruce
Sent from my iPhone
On Oct 1, 2018, at 1:16 PM, George Carr <george.carrii15@?????.???> wrote:
What about A0-10 and AO-13? I did!
73
George
WA5KBH
On Mon, Oct 1, 2018 at 12:30 PM Patrick STODDARD (WD9EWK/VA7EWK) <
amsat-bb@??????.???> wrote:
> Paul,
>
> Here's my list...
>
> AO-7 - SSB
> AO-16 - FM/SSB
> AO-27 - FM
> AO-51 - FM and SSB/FM (also a couple of CW/FM QSOs)
> AO-73 - SSB
> AO-85 - FM
> AO-91 - FM
> AO-92 - FM
> CAS-4A - SSB
> CAS-4B - SSB
> EO-88 - SSB
> FalconSat-3 - Packet
> FO-29 - SSB
> HO-68 - FM and SSB
> ISS - Packet and FM repeater
> LilacSat-2 - FM
> LO-78 - FM
> NO-44 - Packet
> NO-84 - Packet
> SO-35 - FM
> SO-50 - FM
> SO-67 - FM
> Ukube-1 - SSB
> UO-14 - FM
> VO-52 - SSB
> XW-2A - SSB
> XW-2B - SSB
> XW-2C - SSB
------------------------------
Message: 4
Date: Tue, 2 Oct 2018 06:27:37 -0500
From: Hasan al-Basri <hbasri.schiers6@?????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] FoxTelemetry on AO-91 and AO-92
Message-ID:
<CAM4UQf3-bZzG_Fmzneb_Gn2YiP_SertxBDcWYUZCfe_H8JLq=A@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Several of us are having a heck of a time getting any telemetry from the
above birds. DUV just isn't producing anything.
We hear both well enough to make QSOs on the FM transponders, but we can't
seem to get any data thru the decoder.
Is it really that much more difficult to get the TLM via DUV than to
listen to a voice on the 2m downlink?
Setup:
2m Eggbeater at 7', fed with 80' of 9913
AirSpy HF+ SDR
SDRC V3 Software
FMN 12 kHz (Highpass Filter not checked) and FMW both tried, neither
produce any decoded data.
I am getting telemetry just fine from AO-73, and am also getting perfect Wx
pix on 137.100 with SNR's of > 30 dB.
Am I doing something wrong, or is it just that hard to get FoxTelem to work
with DUV?
Thanks for any help. 73,
N0AN
Hasan
------------------------------
Message: 5
Date: Tue, 2 Oct 2018 08:00:06 -0400
From: Mike Seguin <n1jez@?????????????????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] How many satellites have you worked?
Message-ID:
<31ca7489-ce50-22ba-2609-2cbced8118ac@?????????????????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Bruce,
SAFEX --- RR0DL ? I don't remember exactly what the circumstance was,
but I have an RR0DL/SAFEX QSL card (from the SAFEX team) hanging on the
wall here.
Mike
On 10/1/2018 5:28 PM, Bruce wrote:
> I bet there were only 3 of us that made a contact through Mir when they
had their 70cm radio on. Andy, W5ACM, myself and a station in Colorado.
Was awesome with an HT and whip antenna.
>
> 73...bruce
>
> Sent from my iPhone
>
> On Oct 1, 2018, at 1:16 PM, George Carr <george.carrii15@?????.???> wrote:
>
> What about A0-10 and AO-13? I did!
> 73
> George
> WA5KBH
>
> On Mon, Oct 1, 2018 at 12:30 PM Patrick STODDARD (WD9EWK/VA7EWK) <
> amsat-bb@??????.???> wrote:
>
>> Paul,
>>
>> Here's my list...
>>
>> AO-7 - SSB
>> AO-16 - FM/SSB
>> AO-27 - FM
>> AO-51 - FM and SSB/FM (also a couple of CW/FM QSOs)
>> AO-73 - SSB
>> AO-85 - FM
>> AO-91 - FM
>> AO-92 - FM
>> CAS-4A - SSB
>> CAS-4B - SSB
>> EO-88 - SSB
>> FalconSat-3 - Packet
>> FO-29 - SSB
>> HO-68 - FM and SSB
>> ISS - Packet and FM repeater
>> LilacSat-2 - FM
>> LO-78 - FM
>> NO-44 - Packet
>> NO-84 - Packet
>> SO-35 - FM
>> SO-50 - FM
>> SO-67 - FM
>> Ukube-1 - SSB
>> UO-14 - FM
>> VO-52 - SSB
>> XW-2A - SSB
>> XW-2B - SSB
>> XW-2C - SSB
>
> _______________________________________________
> 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
>
--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"
------------------------------
Message: 6
Date: Tue, 2 Oct 2018 08:36:27 -0400
From: Paul Stoetzer <n8hm@????.???>
To: Hasan al-Basri <hbasri.schiers6@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] FoxTelemetry on AO-91 and AO-92
Message-ID:
<CABzOSOpt84U=c+4UwR9mLd-SopCMTSw=_WZTeNnOdSQ0ps3zQQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
How are you feeding the audio from SDR Console to FoxTelem? Are the
sample rates matched (ideally 48000)?
73,
Paul, N8HM
On Tue, Oct 2, 2018 at 7:54 AM Hasan al-Basri <hbasri.schiers6@?????.???>
wrote:
>
> Several of us are having a heck of a time getting any telemetry from the
> above birds. DUV just isn't producing anything.
>
> We hear both well enough to make QSOs on the FM transponders, but we can't
> seem to get any data thru the decoder.
>
> Is it really that much more difficult to get the TLM via DUV than to
> listen to a voice on the 2m downlink?
>
> Setup:
> 2m Eggbeater at 7', fed with 80' of 9913
> AirSpy HF+ SDR
> SDRC V3 Software
> FMN 12 kHz (Highpass Filter not checked) and FMW both tried, neither
> produce any decoded data.
>
> I am getting telemetry just fine from AO-73, and am also getting perfect Wx
> pix on 137.100 with SNR's of > 30 dB.
>
> Am I doing something wrong, or is it just that hard to get FoxTelem to work
> with DUV?
>
> Thanks for any help. 73,
> N0AN
> Hasan
> _______________________________________________
> 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: 7
Date: Tue, 2 Oct 2018 08:48:07 -0400
From: "jeff griffin" <kb2m@????.???>
To: <amsat-bb@?????.???>
Subject: Re: [amsat-bb] How many satellites have you worked?
Message-ID: <023001d45a4e$2b3ddb10$81b99130$@???>
Content-Type: text/plain; charset="us-ascii"
I also worked the 70cm repeater on Mir....
73 Jeff kb2m
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Mike Seguin
Sent: Tuesday, October 2, 2018 8:00 AM
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] How many satellites have you worked?
Bruce,
SAFEX --- RR0DL ? I don't remember exactly what the circumstance was,
but I have an RR0DL/SAFEX QSL card (from the SAFEX team) hanging on the
wall here.
Mike
On 10/1/2018 5:28 PM, Bruce wrote:
> I bet there were only 3 of us that made a contact through Mir when they
had their 70cm radio on. Andy, W5ACM, myself and a station in Colorado.
Was awesome with an HT and whip antenna.
>
> 73...bruce
>
> Sent from my iPhone
>
> On Oct 1, 2018, at 1:16 PM, George Carr <george.carrii15@?????.???> wrote:
>
> What about A0-10 and AO-13? I did!
> 73
> George
> WA5KBH
>
> On Mon, Oct 1, 2018 at 12:30 PM Patrick STODDARD (WD9EWK/VA7EWK) <
> amsat-bb@??????.???> wrote:
>
>> Paul,
>>
>> Here's my list...
>>
>> AO-7 - SSB
>> AO-16 - FM/SSB
>> AO-27 - FM
>> AO-51 - FM and SSB/FM (also a couple of CW/FM QSOs)
>> AO-73 - SSB
>> AO-85 - FM
>> AO-91 - FM
>> AO-92 - FM
>> CAS-4A - SSB
>> CAS-4B - SSB
>> EO-88 - SSB
>> FalconSat-3 - Packet
>> FO-29 - SSB
>> HO-68 - FM and SSB
>> ISS - Packet and FM repeater
>> LilacSat-2 - FM
>> LO-78 - FM
>> NO-44 - Packet
>> NO-84 - Packet
>> SO-35 - FM
>> SO-50 - FM
>> SO-67 - FM
>> Ukube-1 - SSB
>> UO-14 - FM
>> VO-52 - SSB
>> XW-2A - SSB
>> XW-2B - SSB
>> XW-2C - SSB
>
> _______________________________________________
> 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
>
--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"
_______________________________________________
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: 8
Date: Tue, 2 Oct 2018 07:54:19 -0500
From: "JoAnne Maenpaa" <k9jkm@???????.???>
To: "'Hasan al-Basri'" <hbasri.schiers6@?????.???>
Cc: 'AMSAT BB' <amsat-bb@?????.???>
Subject: Re: [amsat-bb] FoxTelemetry on AO-91 and AO-92
Message-ID: <001501d45a4f$0937e000$1ba7a000$@???>
Content-Type: text/plain; charset="us-ascii"
> How are you feeding the audio from SDR Console to FoxTelem? Are the
> sample rates matched (ideally 48000)?
I'm using an SDRPlay RSP2 that feeds FoxTelem via VBCable. I found during
setting things up that VBCable/VoiceMeeter was configured to use the
right-channel. The 'Use Left Channel' box was checked on FoxTelem. I
unchecked the box and presumably matching right-channel to right-channel is
working ... receiving and decoding the DUV are working.
--
73 de JoAnne K9JKM
k9jkm@?????.???
------------------------------
Message: 9
Date: Tue, 2 Oct 2018 09:25:41 -0500
From: "Frank Karnauskas" <n1uw@???????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] Feeding Two Arrow Antennas for X-Polarization
Message-ID: <003e01d45a5b$cd783d00$6868b700$@???????.???>
Content-Type: text/plain; charset="us-ascii"
If anyone is using a pair of Arrow antennas for a cross-polarized
installation, I would appreciate hearing how you are feeding them.
I have one already and I am considering getting another to work up an el-az
setup for portable operation.
Thanks in advance.
73,
Frank N1UW
N1UW at GOKARNS daht com
------------------------------
Message: 10
Date: Tue, 2 Oct 2018 14:46:38 +0000
From: "Stephen E. Belter" <seb@??????.???>
To: Hasan al-Basri <hbasri.schiers6@?????.???>, "amsat-bb@?????.????
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] FoxTelemetry on AO-91 and AO-92
Message-ID: <340DA8E2-4AEC-44E2-9C42-A5B900DF2F5D@??????.???>
Content-Type: text/plain; charset="utf-8"
Hasan,
The answer to your question about the difficulty is yes, and no.
There are lots of things that can block the decoding of the DUV. Get any
*one* of them wrong, and it doesn't work. Get them *all* right, it works
great.
I am not an expert, but here are a few suggestions.
You need a solid, full-quieting signal to decode the packets. Mark is
right; this is much more difficult with an omnidirectional antenna like an
eggbeater. With 80-feet of coax, you probably need a low-noise preamp at
the antenna (not in the shack). When you make a voice QSO, is the signal
really full-quieting?
The DUV information is very, very low frequency. You need to be receiving
everything from DC to 300 hertz, and passing it to FoxTelem. Typical FM
receivers (conventional analog and software defined) filter out the low
frequencies so as to not include CTCSS tones which add an annoying rumble or
hum to the audio. So carefully check and adjust or remove any low-frequency
filtering.
Using a patch cord to connect the speaker output to a sound card input is
unlikely to work. You need to be using a virtual audio cable (software
utility that simulates two sound cards connected by a patch cord). Paul is
correct, check the sample rates on the SDRC output, the input and output of
your VAC, and the input to FoxTelem. They should all be identical.
Check the levels to make sure nothing is clipping or overloaded: Windows
levels between the HF+ and SDRC, SDRC output, and VAC input and output. I'm
using a FUNcube Pro+ dongle and have the Windows level on the FCD set to 9
instead of the default 100. The best level for your HF+ may be different.
I'm sorry you're having trouble. Maybe these hints and the suggestions of
others will help.
73, Steve N9IP
--
Steve Belter, seb@??????.???
?On 10/2/18, 7:56 AM, "AMSAT-BB on behalf of Hasan al-Basri"
<amsat-bb-bounces@?????.??? on behalf of hbasri.schiers6@?????.???> wrote:
Several of us are having a heck of a time getting any telemetry from the
above birds. DUV just isn't producing anything.
We hear both well enough to make QSOs on the FM transponders, but we can't
seem to get any data thru the decoder.
Is it really that much more difficult to get the TLM via DUV than to
listen to a voice on the 2m downlink?
Setup:
2m Eggbeater at 7', fed with 80' of 9913
AirSpy HF+ SDR
SDRC V3 Software
FMN 12 kHz (Highpass Filter not checked) and FMW both tried, neither
produce any decoded data.
I am getting telemetry just fine from AO-73, and am also getting perfect
Wx
pix on 137.100 with SNR's of > 30 dB.
Am I doing something wrong, or is it just that hard to get FoxTelem to
work
with DUV?
Thanks for any help. 73,
N0AN
Hasan
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Message: 11
Date: Tue, 2 Oct 2018 10:57:16 -0400
From: Burns Fisher <burns@??????.??>
To: "Stephen E. Belter" <seb@??????.???>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] FoxTelemetry on AO-91 and AO-92
Message-ID:
<CABX7KxWTxsXUJhojz2fbi1Vk52Dq9hXN1ZSjK3vUeXmy4q+QLg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Let me add just a bit more. I have a homebrew Lindenblad (circular
polarity, omni) with an AMSAT wide band preamp out at the antenna, going to
a FunCube Dongle that is decoded directly by FoxTelem. I get hundreds of
packets per day with it. I have also used an Arrow dual-band J-pole
mounted at 45 degrees and an AirSpy wide-band preamp with nearly as good
results.
My experience is that I CAN get decodes without having completely full
quieting, but it still has to be "pretty good". I also completely agree
with Steve that the big trick is to be sure you have no high pass
filtering. Best is to use a software defined radio (I've succeeded with
both HDSDR and SDR# ) with virtual audio cable if you don't have a FunCube
Dongle.
Good luck! Let us know how you are doing. Maybe a screen shot of FoxTelem
when there is a signal coming would be helpful (although I think pictures
don't go through on this mailing list).
73,
Burns WB1FJ
Fox Flight Software
On Tue, Oct 2, 2018 at 10:46 AM, Stephen E. Belter <seb@??????.???> wrote:
> Hasan,
>
> The answer to your question about the difficulty is yes, and no.
>
> There are lots of things that can block the decoding of the DUV. Get any
> *one* of them wrong, and it doesn't work. Get them *all* right, it works
> great.
>
> I am not an expert, but here are a few suggestions.
>
> You need a solid, full-quieting signal to decode the packets. Mark is
> right; this is much more difficult with an omnidirectional antenna like an
> eggbeater. With 80-feet of coax, you probably need a low-noise preamp at
> the antenna (not in the shack). When you make a voice QSO, is the signal
> really full-quieting?
>
> The DUV information is very, very low frequency. You need to be receiving
> everything from DC to 300 hertz, and passing it to FoxTelem. Typical FM
> receivers (conventional analog and software defined) filter out the low
> frequencies so as to not include CTCSS tones which add an annoying rumble
> or hum to the audio. So carefully check and adjust or remove any
> low-frequency filtering.
>
> Using a patch cord to connect the speaker output to a sound card input is
> unlikely to work. You need to be using a virtual audio cable (software
> utility that simulates two sound cards connected by a patch cord). Paul is
> correct, check the sample rates on the SDRC output, the input and output of
> your VAC, and the input to FoxTelem. They should all be identical.
>
> Check the levels to make sure nothing is clipping or overloaded: Windows
> levels between the HF+ and SDRC, SDRC output, and VAC input and output.
> I'm using a FUNcube Pro+ dongle and have the Windows level on the FCD set
> to 9 instead of the default 100. The best level for your HF+ may be
> different.
>
> I'm sorry you're having trouble. Maybe these hints and the suggestions of
> others will help.
>
> 73, Steve N9IP
> --
> Steve Belter, seb@??????.???
>
>
>
> ?On 10/2/18, 7:56 AM, "AMSAT-BB on behalf of Hasan al-Basri" <
> amsat-bb-bounces@?????.??? on behalf of hbasri.schiers6@?????.???> wrote:
>
> Several of us are having a heck of a time getting any telemetry from
> the
> above birds. DUV just isn't producing anything.
>
> We hear both well enough to make QSOs on the FM transponders, but we
> can't
> seem to get any data thru the decoder.
>
> Is it really that much more difficult to get the TLM via DUV than to
> listen to a voice on the 2m downlink?
>
> Setup:
> 2m Eggbeater at 7', fed with 80' of 9913
> AirSpy HF+ SDR
> SDRC V3 Software
> FMN 12 kHz (Highpass Filter not checked) and FMW both tried, neither
> produce any decoded data.
>
> I am getting telemetry just fine from AO-73, and am also getting
> perfect Wx
> pix on 137.100 with SNR's of > 30 dB.
>
> Am I doing something wrong, or is it just that hard to get FoxTelem to
> work
> with DUV?
>
> Thanks for any help. 73,
> N0AN
> Hasan
> _______________________________________________
> 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
>
------------------------------
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 13, Issue 323
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