| |
CX2SA > SATDIG 15.04.18 04:47l 1063 Lines 36846 Bytes #999 (0) @ WW
BID : AMSATBB13136
Read: GUEST
Subj: AMSAT-BB-digest V13 136
Path: IW8PGT<IR2UBX<DB0RES<DB0OVN<DB0GOS<ON0AR<OZ5BBS<CX2SA
Sent: 180415/0242Z @:CX2SA.SAL.URY.SOAM #:40211 [Salto] FBB7.00e $:AMSATBB13136
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. AO-40 keps (Bob- W7LRD)
2. Re: Making the transponder sats as easy as the fm birds
(Burns Fisher)
3. Re: AO-40 keps (PE0SAT | Amateur Radio)
4. Re: AO-40 keps (Devin L. Ganger)
5. Fox Delta ST2-USB -- compatible with Windows 10? (Devin L. Ganger)
6. ANS-105 AMSAT News Service Weekly Bulletins (E.Mike McCardel)
7. coax switch / flow path for low cost preamps and SDR ,
triplexed swr meter ? (Mr B r a d)
8. Upcoming ARISS contact with Salado Intermediate School,
Salado, TX (n4csitwo@?????????.????
----------------------------------------------------------------------
Message: 1
Date: Sat, 14 Apr 2018 15:35:57 -0700 (PDT)
From: Bob- W7LRD <w7lrd@???????.???>
To: amsat-bb <amsat-bb@?????.???>
Subject: [amsat-bb] AO-40 keps
Message-ID: <373243796.673220.1523745357533@???????.???????.???>
Content-Type: text/plain; charset=UTF-8
Where can I find the keps for AO-40 (sob sob) for a demonstration.
73 Bob W7LRD
Seattle
------------------------------
Message: 2
Date: Sat, 14 Apr 2018 19:05:09 -0400
From: Burns Fisher <burns@??????.??>
To: "Vince Fiscus, KB7ADL" <vlfiscus@???.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Making the transponder sats as easy as the fm
birds
Message-ID:
<CABX7KxXV1Wj7=Xv71fS+A8wYv0W4TWst_Z=T7GF=EEgApqUiTA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
On Sat, Apr 14, 2018 at 12:43 PM, Vince Fiscus, KB7ADL <vlfiscus@???.???>
wrote:
> At 12:29 PM 4/14/2018 +0000, Paul Stoetzer <n8hm@????.???>wrote:
>
>> The general guidance in the early years of operating linear transponders
>> was to adjust your transmitter to maintain a constant receive frequency.
>> Experience with the Mode J transponder on FO-12 caused the gudiance to be
>> updated to tuning the higher of the two frequencies. See the Sept 14, 1987
>> Amateur Satellite Report for more details (
>> http://www.ka9q.net/asr-1987.pdf).
>>
>
>
> I've always tended to adjust the uplink to the satellite, even
> on mode J. Never been chewed out for doing it that way though.
>
> My question, for OM's doing computer control of their rigs. Is the
> software following the rule, or is it adjusting both uplink and
> downlink simultaneously?
>
You say "Is it following the rule?". As Paul said, the original "one true
rule" of adjusting only Rx changed to adjusting the highest frequency
frequency, but now (see Gould Smith's book, Appendix A) adjusting both is
common if you have computer aided tuning. Both MacDoppler and SatPC32 can
adjust both in this way (although MacDoppler can certainly be set to only
change one frequency). I don't think that is in opposition to any rule.
It is just an update of "The One True Rule".
>
> I've always been curious about that.
>
> Still using InstantTrack here. :-)
>
> KB7ADL
>
>
> _______________________________________________
> 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: 3
Date: Sun, 15 Apr 2018 01:28:13 +0200
From: PE0SAT | Amateur Radio <pe0sat@?????.??>
To: Bob- W7LRD <w7lrd@???????.???>
Cc: amsat-bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] AO-40 keps
Message-ID: <414e9a5ad77e195d006fd2b5f95e2da0@?????.??>
Content-Type: text/plain; charset=US-ASCII; format=flowed
Hi Bob,
Here is the info.
https://celestrak.com/cgi-bin/TLE.pl?CATNR=26609
AO-40
1 26609U 00072B 18103.96604874 -.00000356 00000-0 00000+0 0 9993
2 26609 6.1913 163.3970 7949966 234.3659 25.3059 1.25588021 80123
On 15-04-2018 00:35, Bob- W7LRD wrote:
> Where can I find the keps for AO-40 (sob sob) for a demonstration.
>
> 73 Bob W7LRD
>
> Seattle
--
With regards PE0SAT
Internet web-page http://www.pe0sat.vgnet.nl/
DK3WN SatBlog http://www.dk3wn.info/p/
Online Telemetry Forwarder: https://db.satnogs.org/stats/
irc://chat.freenode.net #Cubesat - Twitter @??????
------------------------------
Message: 4
Date: Sat, 14 Apr 2018 23:22:23 +0000
From: "Devin L. Ganger" <devin@????????.???>
To: Bob- W7LRD <w7lrd@???????.???>, amsat-bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] AO-40 keps
Message-ID:
<BN6PR01MB2626B0759E91C44B6059FD21CAB20@?????????????.????.????????????.???>
Content-Type: text/plain; charset="iso-8859-1"
I had to grab it via Sat-Track using its ID 26609.
1 26609U 00072B 18103.96604874 -.00000356 00000-0 00000+0 0 9993
2 26609 6.1913 163.3970 7949966 234.3659 25.3059 1.25588021 80123
--
Devin L. Ganger (WA7DLG)
email:?devin@????????.???
web:?Devin on Earth
cell:?+1 425.239.2575
-----Original Message-----
From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Bob- W7LRD
Sent: Saturday, April 14, 2018 3:36 PM
To: amsat-bb <amsat-bb@?????.???>
Subject: [amsat-bb] AO-40 keps
Where can I find the keps for AO-40 (sob sob) for a demonstration.
73 Bob W7LRD
Seattle
_______________________________________________
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: 5
Date: Sat, 14 Apr 2018 21:38:39 +0000
From: "Devin L. Ganger" <devin@????????.???>
To: "AMSAT-BB@?????.???? <AMSAT-BB@?????.???>
Subject: [amsat-bb] Fox Delta ST2-USB -- compatible with Windows 10?
Message-ID:
<BN6PR01MB2626AB7091325DCE82FB33D9CAB20@?????????????.????.????????????.???>
Content-Type: text/plain; charset="us-ascii"
Greetings, all.
Does anyone know if the CH340G Drivers for use with the Fox Delta ST2-USB
variant ( http://foxdelta.com/products/st2-0417.htm ) are compatible with
Windows 10, or if Windows 10 has some other version of the drivers already
available?
Thinking about purchasing one of these to replace the RS-232 version I
already have - would like to donate the RS-232 version to one of my clubs.
However, I'm pretty firmly in the Windows 10 world.
Thanks in advance.
--
Devin L. Ganger (WA7DLG)
email: devin@????????.???<????????????@????????.???>
web: Devin on Earth<http://www.devinonearth.com/>
cell: +1 425.239.2575
------------------------------
Message: 6
Date: Sun, 15 Apr 2018 00:38:54 +0000
From: "E.Mike McCardel" <mccardelm@?????.???>
To: Amsat - BBs <amsat-bb@?????.???>
Subject: [amsat-bb] ANS-105 AMSAT News Service Weekly Bulletins
Message-ID:
<CAM5+sotXtfM6CWdRPid2eCZzYCqC0fp_dNPjPFGGkh3ACnJ7cw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
AMSAT NEWS SERVICE
ANS-105
The AMSAT News Service bulletins are a free, weekly news and infor-
mation service of AMSAT North America, The Radio Amateur Satellite
Corporation. ANS publishes news related to Amateur Radio in Space
including reports on the activities of a worldwide group of Amateur
Radio operators who share an active interest in designing, building,
launching and communicating through analog and digital Amateur Radio
satellites.
The news feed on http://www.amsat.org publishes news of Amateur
Radio in Space as soon as our volunteers can post it.
Please send any amateur satellite news or reports to:
ans-editor at amsat.org.
In this edition:
* Martlesham Microwave Roundtable on BATC Video Stream (April 15)
* Satellite tracking software for Mac
* Delft University of Technology Delfi-PQ PocketQube Receives IARU
Coordination
* What is a Lilac Doing in Space?
* AMSAT-UK Colloquium 2018 Call for Speakers
* Intercosmos - 40th year of international human flights - SSTV Award
* AMSAT Plans Hamvention Rollout for 2018 "Getting Started"
Satellite Book
* AMSAT Rover Award Certificate
* MiniTiouner-Express Receiver Assembly for ISS HamTV 2.395 GHz
Downlink
* ARISS News
* Satellite Shorts From All Over
SB SAT @ AMSAT $ANS-105.01
ANS-105 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 105.01
From AMSAT HQ KENSINGTON, MD.
April 15, 2018
To All RADIO AMATEURS
BID: $ANS-105.01
Here is a news item which is more timely released sooner than
the weekend news cycle ... some of their topics and techniques
seem applicable to future satellites ... microwave construction,
SDR, GNUradio ...
AMSAT-UK relayed that the UKGHZ Martlesham Microwave Roundtable
Sunday [April 15] talks will be streamed live on BATCOnline:
https://beta.batc.org.uk/live/mmrt
The Sunday programe will streamed live. The times are
apparently British Summer Time which I believe is UTC+1
this time of year.
Their programe includes:
09:00 Doors Open
09:50 Welcome and Opening
10:00 UK Microwave Group AGM, Trophy Presentations
10:45 Refreshments & Judging of the Construction Contest
11:00 An introduction to SDRs and GNU Radio - Heather Lomond M0HMO
11:45 Aircraft Scatter using Airscout - John Quarmby G3XDY
12:30 Lunch Break
13:30 ATV on 5.6, 10 and 24GHz - Dave Crump G8GKQ
14:15 The Wednesday Digifest - John Worsnop G4BAO
15:00 Refreshments
15:15 UKuG Contest Forum - John Quarmby G3XDY
16:00 Close
[ANS thanks AMSAT-UK for the above information]
---------------------------------------------------------------------
Satellite tracking software for Mac
Dog Park Software is pleased to announce that MacDoppler Version
2.28 has been released.
What's New in this release ?
* TS-790A/E driver rewritten (TU IU1KBH).
* Added Country names to 2D map.
* Added Natural Earth III maps.
* Added 2D/3D map snap shots.
* VFO steppers improved. (manual page 11)
* Delete Mode or Satellite from Modes editor.
* 2D Track List check box persistence fixed.
* 2D Draw performance improved.
MacDoppler is used around the world by Amateur Radio operators,
satellite spotters, educators and commercial customers from CBS News
to the International Space Station Amateur Radio Hardware Management
program, Delta Telemetry Tracking and Control at Integrated Defence
Systems, Florida State University and the CalPoly CubeSat Project.
MacDoppler will provide any level of station automation you need
from assisted Doppler Tuning and Antenna Pointing right on up to
fully automated Satellite Gateway operation.
MacDoppler features:
* Full 2D and 3D OpenGL projection model of earth.
* Track List sorted in real-time order of next pass.
* Full predictive dead spot crossing so that a pass is never
interrupted by the beam heading passing a dead spot.
* Speech advisory of next satellite Rise and Maximum Elevation.
* Horizon Window shows elevation of upcoming passes on a time line.
* Tuning Dial Tracking allows you to tune the downlink from your
radio's front panel while MacDoppler automatically adjusts the
uplink.
MacDoppler must be registered for some features to work and to work
beyond the 15 minute time limit.
This is a free upgrade for all MacDoppler Registered users and can
be downloaded from: http://dogparksoftware.com/MacDoppler.html
[ANS thanks Dog Park Software via Southgate ARN for the above
information]
---------------------------------------------------------------------
Delft University of Technology Delfi-PQ PocketQube Receives IARU
Coordination
Delfi-PQ is an educational PocketQube mission designed by the MSc
and BSc students at the Delft University of Technology in the
Netherlands. The design of this spacecraft has been carried out as
part of their curricula to acquire experience on the field. Students
are involved on all the mission phases and they will also participate
in operations.
The second goal of this mission is technology demonstration, being
this spacecraft one of the smallest ever launched belonging to the
PocketQube class with a size of 50x50x192 mm. It contains all the
required systems to operate in space.
It is one of the first PocketQubes to be launched and it is the
cornerstone for a series of PocketQubes from TU Delft with the aim
to iteratively advance the platform to enable ambitious scientific
objectives with networks of PocketQubes in the future.
Delfi-PQ mainly focusses to demonstrate a reliable core system
(comprising a power system, a communication system, an attitude
control system and an on-board computer). Furthermore, it will
host a few small-scale experiments which can be used for technology
research.
These experiments are related to future propulsion, more advanced
attitude control, navigation, thermal analysis and control. The
orbital life time of Delfi-PQ is currently foreseen to be very short
(only up to 150 days due to the low orbit of deployment). This will
ensure the spacecraft cannot contribute to the space debris problem
and also it will occupy its assigned frequency band for a very short
time, preventing spectrum pollution.
The demonstration of the core spacecraft and its experiments is
expected to take all the mission time, till deployment. The communi-
cation system, in particular, will be tested and the support of
amateurs will also be important.
AX.25 will be used worldwide to deliver telemetry. The protocol was
selected due to the widespread community around the world that make
already use of such a standard. A mode using advanced communication
protocol, using forward error correction, will be tested upon command
(and so receivable over Europe). This new protocol is decoded by the
provided decoding software. The decoding software will enable radio
amateurs to help estimating the performance of the receiver in
different conditions with statistics transmitted back to a central
server
In order to provide a return favor to the radio amateur community
for the use of the frequency bands, this mission will publish all the
instructions for satellite reception and telemetry decoding. A
decoding application will also be provided to radio-amateurs around
the world before launch to allow easy decoding with standard
hardware. This application will also be used to submit the received
frames to a central repository. The contribution from radio amateurs
in receiving the data will greatly enhance the mission.
To make it more exciting to participating radio amateurs, several
challenges will be organized. Examples of challenges are thereception
of the first and the last frame. In particular, the first received
frame will be important for the team to assess the status of health
of the spacecraft. The submitter will receive a prize for it.
Since the satellite will be deployed to only 350 km and the foreseen
operational lifetime is equal to the orbital life time, it will be
very interesting to monitor its deorbiting process. Next to this,
the number of received frames and the global distribution will also
lead to the definition of several challenges. All challenges will
have some small prize and achievement certificate associated with
it.
A UHF downlink on 436.650 MHz has been coordinated by the IARU. The
transmission protocol will be GMSK at up to 19k2 bps. Planned for a
launch on a Vector rocket from Kodiak Alaska in August 2018 with
other PocketQubes.
More information available on: http://delfispace.nl
The IARU coordination announcement can be accessed at:
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=605
[ANS thanks the IARU and AMSAT-UK for the above information]
---------------------------------------------------------------------
What is a Lilac Doing in Space?
Student Built LilacSat-1's Success with an Amateur Radio
Mission LilacSat-1 accomplished, according to the reports from the
students at the Harbin Institute of Technology.
The student built LilacSat-1 carries an amateur radio 145/436 MHz FM
to Codec2-BPSK digital voice transponder, APRS Digipeater and camera.
The satellite was developed at the Harbin Institute of Technology
and is part of the QB50 mission which aims to study the lower
thermosphere. It was deployed from the International Space Station at
0835 GMT on Thursday, May 25, 2017.
Shortly after deployment LilacSat-1 took a picture of the solar
panels on the ISS. The image was downloaded by the students on
436.510 MHz +/- 10 kHz Doppler Shift using 9600 bps BPSK.
The FM to Codec2-BPSK transponder was activated late afternoon GMT
on Thursday, May 25:
FM Uplink 145.985 MHz with 67 Hz CTCSS (PL Tone)
Codec2 9600 bps BPSK Downlink 436.510 MHz
The first contact using the Codec2 transponder took place on May 31
between Mike Rupprecht DK3WN and John Grant GI7UGV
http://www.dk3wn.info/p/?p=79889
LilacSat-1 radio information is at
https://tinyurl.com/ANS105-LilacSatRadioInfo
Adam Whitney K0FFY has documented how to receive the LilacSat-1
Codec2 Digital Voice transponder using the FUNcube Dongle Pro+ SDR
http://adamwhitney.net/working-lilacsat-1/
M6SIG live CD for LilacSat 1 and 2
http://chertseyradioclThe main payload is an ion and neutral
particle mass spectrometer (INMS) developed by the University of
London (UCL) to measure the mass and distribution of charged and
neutral atoms.
LilacSat-1 signal received by JA0CAW
In preparation for the deployment HIT students installed new VHF and
UHF antennas for the ground station.
Harbin Institute of Technology Amateur Radio Club BY2HIT
http://www.by2hit.net/
http://weibo.com/by2hit/
http://www.qsl.net/by2hit/
https://www.qrz.com/db/BY2HIT
LilacSat-1 page (use Google translator)
http://lilacsat.hit.edu.cn/?page_id=143
QB50 LilacSat-1 information https://upload.qb50.eu/detail/CN02/
IARU information
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=343
Keplerian Two Line Elements (TLEs) 'Keps' for new satellites
launched in past 30 days
https://tinyurl.com/ANS105-LiliacSatTLE
Lilacsat 1 and 2 decoder now available on Experimental Raspberry Pi
(3) image with GNU radio / gr-lilacsat
https://tinyurl.com/ANS105-LiliacSatDecoder
LilacSat-1 Codec2 downlink by Daniel Est?vez EA4GPZ / M0HXM
http://destevez.net/2016/10/lilacsat-1-codec-2-downlink/
Updated LilacSat-1 Live CD from M6SIG latest link at
https://tinyurl.com/ANS105-LilacSatLiveCD
[ANS thanks Jill Durfee and Satnews for the above information]
---------------------------------------------------------------------
AMSAT-UK Colloquium 2018 Call for Speakers
This is a call for speakers for the AMSAT-UK International Space
Colloquium 2018 which, will be held this year on 13-14 October, in
conjunction with the RSGB Convention at Kents Hill Park Conference
Centre, Milton Keynes, MK7 6BZ, United Kingdom .
AMSAT-UK invites speakers, to cover topics about Amateur satellites,
CubeSats, Nanosats, space and associated activities, for this event.
They are also invited to submit papers for subsequent publishing on
the AMSAT-UK web site or in Oscar News.
We appreciate that it is not always possible to give a firm
indication of attendance at this stage but expressions of interest
would be appreciated.
Submissions should be sent via e-mail to: dave@?????.??.??
AMSAT-UK also invite anyone with requests for Program Topics to
submit them as soon as possible to G4DPZ. Invitations for any papers
on specific subjects will be included in the future call. Likewise if
anyone knows of a good speaker, please send contact and other
information to G4DPZ.
[ANS thanks Dave, G4DPZ for the above information.]
---------------------------------------------------------------------
Intercosmos - 40th year of international human flights - SSTV Award
Please act now as the deadline is May 15th, 2018.
SSTV from the International Space Station was active April 11-14
worldwide as part of Cosmonautics Day, which takes place on April 12.
Images were related to the Interkosmos project
(https://en.wikipedia.org/wiki/Interkosmos).
This activity covered most of the world during the operational period.
The images were be transmitted on 145.800 MHz and the mode was PD120.
A special Award has been made available to those posting reception
reports.
To obtain the Award one should receive and decode at least one
picture during the activity period. The quality of the received image
does not have to be perfect, but good enough to identify the picture.
Partial images are acceptable.
The award is in electronic format (JPG). It will be sent by e-mail.
The criteria as follows must be met to obtain the Award:
Load your decoded images on the page:
www.spaceflightsoftware.com/ARISS_SSTV/index.php
Fill in the application form on https://ariss.pzk.org.pl/sstv/
Please act now as the deadline is May 15th, 2018.
Details and a list of ARISS SSTV Award winning stations are
available at: https://ariss.pzk.org.pl/sstv/
[ANS thanks Armand, SP3QFE, for the above information]
---------------------------------------------------------------------
AMSAT Plans Hamvention Rollout for 2018 "Getting Started" Satellite
Book
Gould Smith's book, "Getting Started With Amateur Satellites", is
being updated to tell you all about how you can get ready to operate
through the Fox-1 satellites launching later this year. Additional
chapters in the book tell you about tracking software, orbital
mechanics, antennas, radios, Doppler tuning, and operating
techniques. Chapters are also being added to tell you about the new
satellites (and there are many)soon becoming available for amateur
radio.
Going beyond brief descriptions in hamfest flyers, this book will
provide a complete reference for new satellite users to assemble a
basic station and to make your first satellite contacts. Also this
book you will teach you how to incrementally upgrade your initial FM
satellite station, time and budget permitting, to include automated
tracking as well as operating through the CW/SSB linear passband
satellites.
A companion Fox Operating Guide reference sheet is ready for release
at Hamvention 2018. This will be made available for the AMSAT
Ambassadors (formerly FieldOps) team for distribution at hamfests
and satellite operating demonstrations.
Watch for the 2018 "Getting Started With Amateur Satellites" book
and reference sheet at the AMSAT booth at the Hamvention. The book
will also be available in the AMSAT Store shortly after Hamvention:
https://www.amsat.org/shop/
[ANS thanks AMSAT's 2018 Hamvention Team for the above information]
---------------------------------------------------------------------
AMSAT Rover Award Certificate
It has been awhile, the voting was in and the certificate has been
created. For those that have earned the award, the certificates will
be going out to the address in your AMSAT online store order soon.
If you would like to see what the certificate looks like, it is on
the AMSAT Rover Award web page.
https://www.amsat.org/amsat-rover
Thanks to everyone that submitted a picture to use on the award.
[ANS thanks Bruce KK5DO for the above information.]
---------------------------------------------------------------------
MiniTiouner-Express Receiver Assembly for ISS HamTV 2.395 GHz Downlink
A receiver suitable for the ARISS/HamTV 2.395 GHz DVB-S downlink
from the ISS is now available for purchase. The MiniTiouner-Express
receiver/tuner/analyzer assembly is a completely assembled and tested
unit contained in a small aluminum enclosure about the size of a 2
stack deck of cards.
The DATV-Express group created the design, construction and sale
of the Minitiouner-Express receiver. It is used with the free soft-
ware by Jean Pierre Courjaud F6DZP. The unit connects between an
antenna(s) and a PC computer USB2 or USB3 port using the Windows 7,
8 or 10 operating system. It receives DVB-S/S2 144MHz to 2420MHz
digital television signals for symbol rates between 100K and 10M
symbols/sec when used with the F6DZP MiniTioune software.
In operation, the computer monitor displays the received video and
graphic landing dot constellation to show the incoming signal level,
quality, FEC, MER and setup information.
The MiniTiouner-Express Receiver/Analyzer unit can be ordered from
the http://www.datv-express.com/ website. You need to first logon
to the website (or first register if you are a new user). Use the
PURCHASE A PRODUCT tab to order the product via PayPal.
The price for the MiniTiouner-Express unit is US$75 + shipping
Shipping for USA is US$7.00
Shipping to the European Union is US$24.00 including the VAT
Shipping anywhere international is US$35.00
Although initial stock has been depleted more units are on the way.
The MiniTiouner-Express User Guide (draft13) can be downloaded from
http://www.datv-express.com/CustomPage/Downloads
Information about the ARISS HamTV project can be found at:
http://www.ariss-eu.org/columbus/ham-video
The HamTV downlink from the ISS has recently only been active for
selected school contacts. HamTV often transmits a "blank signal"
useful for receiver and antenna testing when not in use for school
contacts.
[ANS thanks Daniel Cussen, EI9FHB via the HamTV@???????????.?? list
for the above information]
---------------------------------------------------------------------
ARISS News
+ A Successful contact was made between Pinson Valley HS, Pinson,
AL, USA and Astronaut Ricky Arnold KE5DAU using Callsign NA1SS.
The contact began 2018-04-10 18:02 UTC and lasted about nine and a
half minutes. Contact was Direct via KN4BBD
ARISS Mentor was John K4SQC.
+ A Successful contact was made between About Gagarin from space
Session of radio amateur communication with Vologda branch of PJSC
"Rostelecom ", Vologda, Russia and Cosmoonaut Oleg Artemyev using
Callsign RS0ISS. The contact began 2018-04-10 13:37 UTC and lasted
about nine and a half minutes. Contact was Direct via RN1QC,
ARISS Mentor was Sergey RV3DR.
+ A Successful contact was made between Freeport Public Schools,
Freeport, NY, USA and Astronaut Scott Tingle KG5NZA using Callsign
OR4ISS. The contact began 2018-03-27 17:41 UTC and lasted about nine
and a half minutes. Contact was Telebridge via IK1SLD.
ARISS Mentor was Steve W2AKK.
Quick list of scheduled contacts and events:
Additional information can be found at http://ariss-sstv.blogspot.com/
Salado Intermediate School, Salado, TX, direct via K5LBJ
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Scott Tingle KG5NZA
Contact is a go for: Tue 2018-04-17 16:44:23 UTC 24 deg
Central Islip Union Free School District, Central Islip, NY, direct
via KD2IFR
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Ricky Arnold KE5DAU
Contact is a go for: Wed 2018-04-18 15:57:46 UTC 28 deg
The school will be hosting an ARISS contact on Wednesday April 18 at
15:57:46 UTC. The video stream of the contact will be available
online.
King's High School, Warwick, UK, direct via GB4KHS
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is Ricky Arnold KE5DAU
Contact is a go for: Thu 2018-04-19 12:05:19 UTC 72 deg
Russian school TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Alexander Skvortsov
Contact is a go for Tue 2018-04-24 11:05 UTC
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Alexander Skvortsov
Contact is a go for 2018-04-25 08:35 UTC
[ANS thanks ARISS, Charlie AJ9N and David AA4KN for the above
information]
---------------------------------------------------------------------
Satellite Shorts From All Over
+ Video playlist for PocketQube 2018 Workshop at TU Delft
https://tinyurl.com/ANS105-PocketQube
[AMSAT-UK and AlbaOrbital via Twitter]
+ 7X3WPL Sahara DX Club
7X3WPL is now QRV permanently from Sahara DX Club in Laghouat. They
are using a Kenwood TS-2000, G5500 rotor and Wimo X-Quad for 2m and
70cm. (via Abdel M0NPT /7X2TT on amsat-bb)
[ANS thanks Sahara DX Club for above information]
+ The March/April 2018 edition of Apogee View, an update on AMSAT's
activities from AMSAT President Joe Spier, K6WAO, has been posted to
the AMSAT website.
https://www.amsat.org/apogeeview/
[ANS thanks Paul N8HM for the above information.]
+ NASA e-Book Free Download
The flight directors in charge of the teams that oversee its
systems have written a 400-page book that offers an inside look at
the time and energy the flight control team at the Mission Control
Center at NASA?s Johnson Space Center in Houston devote to the
development, planning and integration of a mission.
"The International Space Station: Operating an Outpost in the
New Frontier", is now available to download for free at
https://www.nasa.gov/connect/ebooks/index.html.
Additional details are available at:
https://preview.tinyurl.com/ANS105-BookDetails
---------------------------------------------------------------------
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining
donors to AMSAT Project Funds, will be eligible to receive addi-
tional benefits. Application forms are available from the AMSAT
Office.
Primary and secondary school students are eligible for membership
at one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the stu-
dent rate for a maximum of 6 post-secondary years in this status.
Contact Martha at the AMSAT Office for additional student membership
information.
73,
This week's ANS Editor,
EMike McCardel, AA8EM
aa8em at amsat dot org
------------------------------
Message: 7
Date: Sun, 15 Apr 2018 01:52:56 +0000 (UTC)
From: Mr B r a d <jhill_81@?????.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: [amsat-bb] coax switch / flow path for low cost preamps and
SDR , triplexed swr meter ?
Message-ID: <2079312942.368702.1523757176443@????.?????.???>
Content-Type: text/plain; charset=UTF-8
please email if you find a wire flow chart to your problem of sharing SDR
receivers and coax routing....I have also been looking for a easy way to
switch in a uhf preamp?with out having to change coax patch's between UV and
VU birds.. I dont see many flow charts for thison the web.
Here is my station today , will it be okay to run the one swr/watt meter in
this full duplex coax segment ?
it seems like cheating....
http://www.valleymedia.org/satchat/Ko6kL-Sat-wire-chart-hi-res-Flow%20Charts-n
ight-view-.png
?Ko6kL ? Brad ? ? please reply direct or ...... please guys... ? ?
64,000 bytes of old forum messages deleted from below.... hint hint....
------------------------------
Message: 8
Date: Sat, 14 Apr 2018 22:35:29 -0400
From: <n4csitwo@?????????.???>
To: "Bill Merino" <n2cop@??.??.???>, <amsat-bb@?????.???>, "amsat-edu"
<amsat-edu@?????.???>, <ariss-press@?????.???>
Subject: [amsat-bb] Upcoming ARISS contact with Salado Intermediate
School, Salado, TX
Message-ID: <8E62BF595FAF4F48AC9690DB5AEB92D9@???>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at Salado Intermediate School, Salado, TX on 17 Apr. The event
is scheduled to begin at approximately 16:44 UTC. The duration of the
contact is approximately 9 minutes and 30 seconds. The contact will be
direct between NA1SS and K5LBJ. The contact should be audible over the state
of Texas and adjacent areas. Interested parties are invited to listen in on
the 145.80 MHz downlink. The contact is expected to be conducted in English.
Students at Salado Intermediate School are third through sixth graders. The
campus emphasis is to instill in our students a passion for learning,
critical thinking, inquiry and collaboration. The unique experience of this
ARISS contact aligns with that goal by making a lasting impression on the
students, creating an interest in STEM careers for many of them. This radio
contact allows our students to make a personal connection to the importance
of space exploration and its developing technology.
Participants will ask as many of the following questions as time allows:
1. How do you all get along in space, even though there are people from all
different places around the world?
2. How does it feel to see the Earth from space?
3. Does being in space become normal to you, like going to school is for me?
4. What is one of the biggest challenges you have faced on the ISS?
5. If you could bring one more thing on board the space station what would it
be?
6. Is it harder to breathe on board the space station?
7. What was the transition from the military to astronaut like?
8. If you could take a non-related person with you to the space station, who
would you take and why?
9. What are you looking for when you are monitoring the Earth?s water from
space?
10. What do you think the world would be like without space exploration?
11. How do you clean the space station?
12. What is the most interesting experiment you have done on the ISS?
13. How do you celebrate holidays on the ISS?
14. What are your first thoughts as you begin a spacewalk?
15. If you got to add another section to the ISS what would be in it?
16. If you could pick any food to eat right now, what would it be?
17. Why are bacteria stronger in space, or is the immune system weaker?
18. What is the hardest thing to get used to on the space station?
19. What would you change about the space suit and why?
20. Does it take longer for something to grow in space than on Earth?
PLEASE CHECK THE FOLLOWING FOR MORE INFORMATION ON ARISS UPDATES:
Visit ARISS on Facebook. We can be found at Amateur Radio on the
International Space Station (ARISS).
To receive our Twitter updates, follow @????????????
Next planned event(s):
1. Central Islip Union Free School District, Central Islip, NY, direct via
KD2IFR
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Ricky Arnold KE5DAU
Contact is a go for: Wed 2018-04-18 15:57:46 UTC 28 deg
The video stream of the contact will be available online.
Video stream should begin around 10:30am.
Stream should come to an end around 12:15pm
Navigate to http://www.centralislip.k12.ny.us/ariss
Click on the livestream logo. When the event is live, there will be a
link to the stream.
2. King's High School, Warwick, UK, direct via GB4KHS
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is Ricky Arnold KE5DAU
Contact is a go for: Thu 2018-04-19 12:05:19 UTC 72 deg
3. Russian school TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Alexander Skvortsov
Contact is a go for Tue 2018-04-24 11:05 UTC
4. Russian school TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Alexander Skvortsov
Contact is a go for 2018-04-25 08:35 UTC
About ARISS:
Amateur Radio on the International Space Station (ARISS) is a cooperative
venture of international amateur radio societies and the space agencies that
support the International Space Station (ISS). In the United States,
sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American
Radio Relay League (ARRL), the Center for the Advancement of Science in
Space (CASIS) and National Aeronautics and Space Administration (NASA).
The primary goal of ARISS is to promote exploration of science, technology,
engineering, and mathematics (STEM) topics by organizing scheduled contacts
via amateur radio between crew members aboard the ISS and students in
classrooms or informal education venues. With the help of experienced
amateur radio volunteers, ISS crews speak directly with large audiences in a
variety of public forums. Before and during these radio contacts, students,
teachers, parents, and communities learn about space, space technologies,
and amateur radio. For more informa
tion, see www.ariss.org, www.amsat.org, and www.arrl.org.
Thank you & 73,
David - AA4KN
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
------------------------------
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 136
*****************************************
Read previous mail | Read next mail
| |
