| |
CX2SA > SATDIG 02.03.20 00:26l 1281 Lines 34973 Bytes #999 (0) @ WW
BID : AMSATBB1542
Read: GUEST
Subj: AMSAT-BB-digest V15 42
Path: IW8PGT<HB9ON<IW2OHX<IR1UAW<I0OJJ<I0OJJ<N6RME<CX2SA
Sent: 200213/0536Z @:CX2SA.SAL.URY.SOAM #:24786 [Salto] FBB7.00e $:AMSATBB1542
>From cx2sa%cx2sa.sal.ury.soam@i0ojj.ampr.org Thu Feb 13 06:45:11 2020
Received: from i0ojj.ampr.org by i0ojj.ampr.org (JNOS2.0m.1) with SMTP
id AA99373 ; Thu, 13 Feb 2020 06:45:11 +0100
Message-Id: <AMSATBB1542@i0ojj.bbs>
>From: cx2sa@cx2sa.sal.ury.soam
X-JNOS-User-Port: Telnet (i0ojj @ 44.134.32.240) -> Sending message
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: Duplexer to Dual-Band Vertical (on4cjq@???????.???
2. Upcoming ARISS Contact Schedule as of 2020-02-12 20:00 UTC
(aj9n@???.????
3. Upcoming ARISS Contact Schedule as of 2020-02-13 03:30 UTC
(aj9n@???.????
4. SDR Recommendations (Mike Lucas)
5. EM21/31 CAS4A/B (Bob Liddy (K8BL))
6. Re: SDR Recommendations (Scott)
7. Re: SDR Recommendations (Greg D)
8. Re: SDR Recommendations (Mike Lucas)
----------------------------------------------------------------------
Message: 1
Date: Wed, 12 Feb 2020 19:29:30 +0100 (CET)
From: on4cjq@???????.??
To: VA3ASE <va3ase@?????.???>
Cc: amsat-bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Duplexer to Dual-Band Vertical
Message-ID:
<493333432.56520678.1581532170104.JavaMail.zimbra@???????.??>
Content-Type: text/plain; charset=utf-8
There is nothing to worry about.
>From the vertical with 1 coax into the shack. In the shack only 1 diplexer
to split the 2m and 70cm signal, and from the diplexer's outputs to the
847's 2m and 70cm port. Allways OK!(the common connector at the diplexer is
the dualband vertical one)
I worked that way for 10y but with a seperate 2m and 70cm trx, 40w both and
never blew up anything.
Don't use a 'T' to split the 2 bands!
73's
Jerry,ON4CJQ
----- Oorspronkelijk bericht -----
Van: "amsat-bb" <amsat-bb@?????.???>
Aan: "amsat-bb" <amsat-bb@?????.???>
Verzonden: Dinsdag 11 februari 2020 14:07:17
Onderwerp: [amsat-bb] Duplexer to Dual-Band Vertical
Good morning,
I was chatting with a friend about his experimentation with amateur
satellites and have been pondering if his setup is "safe" for his radio. He
is running an FT-847 through a duplexer (diplexer if you want to be
pedantic) and into a dual-band vertical base antenna on his roof.
Definitely not an ideal setup, but meant to be temporary until time and
better weather allow. He has managed to make some FM contacts on AO-92 with
it.
My concern is him using a duplexer in this manner while running full
duplex. I suppose this is similar to what people must do if using an Elk
antenna. I just worry about there being enough isolation between the ports
and damaging his transceiver. Are there others using similar setups or is
this something to avoid?
73,
Alex VA3ASE
_______________________________________________
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: 2
Date: Wed, 12 Feb 2020 19:45:57 +0000 (UTC)
From: aj9n@???.???
To: amsat-bb@?????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2020-02-12
20:00 UTC
Message-ID: <103842921.1519875.1581536757307@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Upcoming ARISS Contact Schedule as of 2020-02-12 20:00 UTC
?
Quick list of scheduled contacts and events:
?
Maple Dale Elementary School, Cincinnati, OH, direct via K8SCH
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Drew Morgan KI5AAA
Contact is go for: Thu 2020-02-20 18:20:28 UTC 48 deg (***)
?
?
?
?
?
?
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)
?
?
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?2020-02-12 03:00 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 2020-02-08 03:30 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
?
Amateur Radio on the International Space Station?
?
Contact Opportunity?
?
Call for Proposals?
?
Upcoming Proposal Window is February 1, 2020 to March 31, 2020
?
The Amateur Radio on the International Space Station (ARISS) Program is
seeking formal and informal education institutions and organizations,
individually or working together, to host an Amateur Radio contact with a
crew member on board the ISS.? ARISS is happy to announce a proposal window
will open February 1, 2020 for contacts that would be held between January
1, 2021 and June 30, 2021. Crew scheduling and ISS orbits will determine the
exact contact dates. To maximize these radio contact opportunities, ARISS is
looking for organizations that will draw large numbers of participants and
integrate the contact into a well-developed education plan.?
?
The proposal window for contacts between January 1, 2021 and June 30, 2021
will open on February 1, 2020 and close on March 31, 2020.? Proposal
information and documents can be found at www.ariss.org. Two ARISS
Introductory Webinar sessions will be held on November 7, 2019. The first is
at 6:00 PM ET and the second is at 9:00 PM ET. The same material will be
covered during both sessions, so choose the session that best fits your
schedule. The Eventbrite link to sign up
is?https://ariss-introductory-webinar-fall-2019.eventbrite.com?.
?
The Opportunity?
?
Crew members aboard the International Space Station will participate in
scheduled Amateur Radio contacts. These radio contacts are approximately 10
minutes in length and allow students to interact with the astronauts through
a question-and-answer session.?
?
An ARISS contact is a voice-only communication opportunity via Amateur Radio
between astronauts and cosmonauts aboard the space station and classrooms
and communities. ARISS contacts afford education audiences the opportunity
to learn firsthand from astronauts what it is like to live and work in space
and to learn about space research conducted on the ISS. Students also will
have an opportunity to learn about satellite communication, wireless
technology, and radio science. Because of the nature of human spaceflight
and the complexity of scheduling activities aboard the ISS, organizations
must demonstrate flexibility to accommodate changes in dates and times of
the radio contact.?
?
Amateur Radio organizations around the world with the support of NASA and
space agencies in Russia, Canada, Japan and Europe present educational
organizations with this opportunity. The ham radio organizations' volunteer
efforts provide the equipment and operational support to enable
communication between crew on the ISS and students around the world using
Amateur Radio.??
?
More Information
?
For 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 132
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 1380.
Each school counts as 1 event.??????????????????????????????????
Total number of ARISS ISS to earth school contacts is 1313.
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. 60 on orbit
Drew Morgan KI5AAA
?
Exp. 61 on orbit
Oleg Skripochka
Jessica Meir
?
****************************************************************************
73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors
?
?
?
?
------------------------------
Message: 3
Date: Thu, 13 Feb 2020 03:49:25 +0000 (UTC)
From: aj9n@???.???
To: amsat-bb@?????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2020-02-13
03:30 UTC
Message-ID: <1675209033.1640632.1581565765770@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Upcoming ARISS Contact Schedule as of 2020-02-13 03:30 UTC
?
Quick list of scheduled contacts and events:
?
Maple Dale Elementary School, Cincinnati, OH, direct via K8SCH
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Drew Morgan KI5AAA
Contact is go for: Thu 2020-02-20 18:20:28 UTC 48 deg
?
?
?
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)
?
?
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?2020-02-13 03:30 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 2020-02-08 03:30 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
?
Amateur Radio on the International Space Station?
?
Contact Opportunity?
?
Call for Proposals?
?
Upcoming Proposal Window is February 1, 2020 to March 31, 2020
?
The Amateur Radio on the International Space Station (ARISS) Program is
seeking formal and informal education institutions and organizations,
individually or working together, to host an Amateur Radio contact with a
crew member on board the ISS.? ARISS is happy to announce a proposal window
will open February 1, 2020 for contacts that would be held between January
1, 2021 and June 30, 2021. Crew scheduling and ISS orbits will determine the
exact contact dates. To maximize these radio contact opportunities, ARISS is
looking for organizations that will draw large numbers of participants and
integrate the contact into a well-developed education plan.?
?
The proposal window for contacts between January 1, 2021 and June 30, 2021
will open on February 1, 2020 and close on March 31, 2020.? Proposal
information and documents can be found at www.ariss.org. Two ARISS
Introductory Webinar sessions will be held on November 7, 2019. The first is
at 6:00 PM ET and the second is at 9:00 PM ET. The same material will be
covered during both sessions, so choose the session that best fits your
schedule. The Eventbrite link to sign up
is?https://ariss-introductory-webinar-fall-2019.eventbrite.com?.
?
The Opportunity?
?
Crew members aboard the International Space Station will participate in
scheduled Amateur Radio contacts. These radio contacts are approximately 10
minutes in length and allow students to interact with the astronauts through
a question-and-answer session.?
?
An ARISS contact is a voice-only communication opportunity via Amateur Radio
between astronauts and cosmonauts aboard the space station and classrooms
and communities. ARISS contacts afford education audiences the opportunity
to learn firsthand from astronauts what it is like to live and work in space
and to learn about space research conducted on the ISS. Students also will
have an opportunity to learn about satellite communication, wireless
technology, and radio science. Because of the nature of human spaceflight
and the complexity of scheduling activities aboard the ISS, organizations
must demonstrate flexibility to accommodate changes in dates and times of
the radio contact.?
?
Amateur Radio organizations around the world with the support of NASA and
space agencies in Russia, Canada, Japan and Europe present educational
organizations with this opportunity. The ham radio organizations' volunteer
efforts provide the equipment and operational support to enable
communication between crew on the ISS and students around the world using
Amateur Radio.??
?
More Information
?
For 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 132
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 1380.
Each school counts as 1 event.??????????????????????????????????
Total number of ARISS ISS to earth school contacts is 1313.
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. 60 on orbit
Drew Morgan KI5AAA
?
Exp. 61 on orbit
Oleg Skripochka
Jessica Meir
?
****************************************************************************
73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors
?
?
?
?
------------------------------
Message: 4
Date: Wed, 12 Feb 2020 20:43:27 -0800
From: "Mike Lucas" <documike@???????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] SDR Recommendations
Message-ID: <002f01d5e228$2294e450$67beacf0$@???????.???>
Content-Type: text/plain; charset="us-ascii"
I'm thinking of acquiring an SDR unit for the station for downloading sat
telemetry etc. I'm new to the SDR world but learning. I'm currently using
a Yaseu 736R which has served me well.
Not sure how you configure SDR for Doppler tracking etc. so looking for
links to info I can educate myself on what all I need etc.
Are there any particular SDR radios that lend themselves best for satellite
work more than others? The SDR Play boxes look solid, are they recommended?
Regards,
Mike N7ASZ
------------------------------
Message: 5
Date: Thu, 13 Feb 2020 04:50:58 +0000 (UTC)
From: "Bob Liddy (K8BL)" <k8bl@?????????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] EM21/31 CAS4A/B
Message-ID: <1746985117.2344789.1581569458026@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Gridders,
On my 2324Z pass on 2/12 on CAS4B from the EM21/31 Line
in LA, I logged the following Calls:
? KG5UN, K4DTM, KC3KOP, K3RRR, KJ4EU, N8AP
On my 2349Z pass on 2/12 on CAS4A from the EM21/31 Line
in LA, I logged the following Calls:
? N8IUP, NA1SA? (+ whistling, counting QRM aplenty)
If I botched your Call or missed it during my transcription, let me know
and I'll re-check my recording. Will upload to LoTW soon. (No eQSL)
73,? ? ? ?Bob? K8BL
?
------------------------------
Message: 6
Date: Wed, 12 Feb 2020 23:58:40 -0500
From: Scott <scott23192@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] SDR Recommendations
Message-ID:
<CAJCSnOYESW34BDoP1z3eLgzb52oc08GvcQ6FUCLq1rc=9wQ8JA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hey Mike!
Yes, the SDRPlay products are great. The original SDRPlay RSP-1 is still
my main Windows SDR for both telemetry and as my RX radio for voice sats.
Here is a page that you may find useful; a very handy overview:
https://www.pe0sat.vgnet.nl/decoding/block-diagram/
... and you'll quickly notice that there are actually a good number of
educational pages on that same site.
Perhaps one of the most important things to remember, especially when
getting started, is that you're dealing with a number of individual
components that work separately but link together. This is nothing new to
you or anybody else in the hobby, but really becomes a major part of what
you'll be doing if you enjoy decoding telemetry since there are a lot of
different tools used at any given time depending on what the needs are.
And I know it's obvious, but RECORD EVERYTHING. If you don't have your
doppler tracking, audio connection, or decoding software just right on the
'live' pass, with an I/Q recording you can play it back and try again.
-Scott, K4KDR
================
On Wed, Feb 12, 2020 at 11:44 PM Mike Lucas via AMSAT-BB <amsat-bb@?????.???>
wrote:
> I'm thinking of acquiring an SDR unit for the station for downloading sat
> telemetry etc. I'm new to the SDR world but learning. I'm currently using
> a Yaseu 736R which has served me well.
>
> Not sure how you configure SDR for Doppler tracking etc. so looking for
> links to info I can educate myself on what all I need etc.
>
> Are there any particular SDR radios that lend themselves best for satellite
> work more than others? The SDR Play boxes look solid, are they
> recommended?
>
> Regards,
>
> Mike N7ASZ
>
------------------------------
Message: 7
Date: Wed, 12 Feb 2020 21:16:55 -0800
From: Greg D <ko6th.greg@?????.???>
To: Mike Lucas <documike@???????.???>, amsat-bb@?????.???
Subject: Re: [amsat-bb] SDR Recommendations
Message-ID: <445efc7b-93da-cbeb-9422-7f4b94261d2b@?????.???>
Content-Type: text/plain; charset=UTF-8
Hi Mike,
What operating system are you running? SDRplay units have great specs,
but support on other than Windows is non-existent to dangerous. I tried
getting one to work on my Linux system, and ended up breaking the
system's support for the RTL-SDR dongles and now neither work. The RSP2
sitting on the bench, unused, and the RTL-SDR is in a Raspberry Pi,
accessed over the home network.
Which brings me to the RTL-SDR dongles. Really cheap, easy to use, and
great support pretty much everywhere. A good learning platform. But
their receivers aren't the best for anything weak due to a high noise
figure, and not good in a high RF environment due to limited filtering.
So overall not the greatest for doing satellite work, but they can work.
Doppler tracking will depend on what software you are using, but they
often support the SDR devices. I was using Gpredict + Gqrx with mine.
Greg KO6TH
Mike Lucas via AMSAT-BB wrote:
> I'm thinking of acquiring an SDR unit for the station for downloading sat
> telemetry etc. I'm new to the SDR world but learning. I'm currently using
> a Yaseu 736R which has served me well.
>
> Not sure how you configure SDR for Doppler tracking etc. so looking for
> links to info I can educate myself on what all I need etc.
>
> Are there any particular SDR radios that lend themselves best for satellite
> work more than others? The SDR Play boxes look solid, are they recommended?
>
> Regards,
>
> Mike N7ASZ
>
> _______________________________________________
> 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: Wed, 12 Feb 2020 21:26:04 -0800
From: "Mike Lucas" <documike@???????.???>
To: "'Greg D'" <ko6th.greg@?????.???>, <amsat-bb@?????.???>
Subject: Re: [amsat-bb] SDR Recommendations
Message-ID: <003401d5e22e$16e05030$44a0f090$@???????.???>
Content-Type: text/plain; charset="utf-8"
Using Windows 10 here on all PC's so sounds safe...LOL.
I've got Doppler working well on the 736R but would like to expand my
horizons out to the SDR world for some new challenges.
Thanks for the great input!
Mike N7ASZ
-----Original Message-----
From: Greg D <ko6th.greg@?????.???>
Sent: Wednesday, February 12, 2020 9:17 PM
To: Mike Lucas <documike@???????.???>; amsat-bb@?????.???
Subject: Re: [amsat-bb] SDR Recommendations
Hi Mike,
What operating system are you running? SDRplay units have great specs, but
support on other than Windows is non-existent to dangerous. I tried getting
one to work on my Linux system, and ended up breaking the system's support
for the RTL-SDR dongles and now neither work. The RSP2 sitting on the
bench, unused, and the RTL-SDR is in a Raspberry Pi, accessed over the home
network.
Which brings me to the RTL-SDR dongles. Really cheap, easy to use, and
great support pretty much everywhere. A good learning platform. But their
receivers aren't the best for anything weak due to a high noise figure, and
not good in a high RF environment due to limited filtering.
So overall not the greatest for doing satellite work, but they can work.
Doppler tracking will depend on what software you are using, but they often
support the SDR devices. I was using Gpredict + Gqrx with mine.
Greg KO6TH
Mike Lucas via AMSAT-BB wrote:
> I'm thinking of acquiring an SDR unit for the station for downloading
> sat telemetry etc. I'm new to the SDR world but learning. I'm
> currently using a Yaseu 736R which has served me well.
>
> Not sure how you configure SDR for Doppler tracking etc. so looking
> for links to info I can educate myself on what all I need etc.
>
> Are there any particular SDR radios that lend themselves best for
> satellite work more than others? The SDR Play boxes look solid, are they
recommended?
>
> Regards,
>
> Mike N7ASZ
>
> _______________________________________________
> 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
------------------------------
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!
https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 15, Issue 42
****************************************
Read previous mail | Read next mail
| |
