AMSAT-BB February 2017

145 participants
237 discussions

by Trevor .

Students at the Ivy League Brown University are developing an amateur radio satellite EQUiSat that will carry a Xenon Flash Tube (XFT) subsystem to act as an Optical Beacon that should be visible to the unaided eye of observers on Earth. See http://www.uk.amsat.org/?p=10635 73 Trevor M5AKA AMSAK-UK http://www.amsat-uk.org/ ----

4 years, 1 month

Using 1.2Ghz

by Todd

Thinking about adding the 1.2Ghz module for my 9100. Prices have dropped a little and units will start become harder to find once production ends. Anybody using this band? I read it's used as a uplink frequency for some satellites. Any input appreciated.ToddAL7PX

4 years, 7 months

Outernet L-Band now carries AMSAT and ARISS weekly bulletins

by Robert Bruninga

The Outernet L-band feed is now carrying a condensed version of the AMSAT and ARISS weekly news files. (Global Geosat coverage except for Northern Alaska)... Receivers are simple: http://aprs.org/outnet.html For ARISS, I manually added a 2 char grid square to each school listed in the school schedule and am asking the outernet folks to parse out that location info and plot a 1200 km footprint on their weather globe showing where people can tune in the ARISS contacts. Then their RTL-SDR dongle could then actually be retuned to hear the contact. Just an idea... Bob, WB4APR -----Original Message----- From: AMSAT-BB [mailto:[email protected]] On Behalf Of Dani EA4GPZ Sent: Saturday, October 15, 2016 7:36 AM To: amsat-bb(a)amsat.org Subject: Re: [amsat-bb] New Outernet L-Band service... >> I hope someday a service like this will be available >> from an AMSAT geostationary service. > I'm pretty confident that the guys at AMSAT-DL are capable > of doing this much better on the upcoming EsHail'2 > than what Outernet is currently doing on Inmarsat... > They already have in mind a "DVB-S beacon"... broadcast > from the ground station at Qatar ... carrying videos > about Ham radio and Ham radio events on this signal. > What is more, if you have equipment to operate EsHail'2 on SSB, > it's more or less easy to use either the narrowband transponder > or the wideband transponder to transmit an Outernet-type signal > through EsHail'2, so anyone can have a go with this. > Outernet uses 4200baud BPSK and half of the bitrate is spent for FEC. > You can use a bit less bitrate to get a signal that will even pass > through a conventional 2.7kHz SSB filter and you can use less > bits for FEC to get increased data throughput (but more SNR required). > Dani EA4GPZ.

4 years, 8 months

Upcoming ARISS Contact Schedule as of 2015-10-26 23:00 UTC

by AJ9N＠aol.com

Upcoming ARISS Contact Schedule as of 2015-10-26 23:00 UTC Quick list of scheduled contacts and events: Possible Russian contact with Kursk Tue 2015-10-27 11:35 UTC Dearborn Public Schools, Dearborn, Michigan, USA, direct via K8UTT The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Kjell Lindgren KO5MOS Contact is a go for Option #3: Tue 2015-10-27 16:01:59 UTC 57 deg Watch for a live video stream that should start about 15:00 UTC: (***) http://www.dearbornschools.org https://www.youtube.com/watch?v=hbhrQiZ62LE Daggett Montessori School K-8, Fort Worth, Texas, USA, direct via K5COW The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Kjell Lindgren KO5MOS Contact is a go for Option #4: Thu 2015-10-29 14:12:56 UTC 31 deg **************************************************************************** ** Interested in hosting an ARISS contact? The window is now open from 2015-09-01 to 2015-11-01. These proposals will be for school contacts during the second half of 2016. Go to http://www.arrl.org/hosting-an-ariss-contact or http://www.ariss.org/apply-to-host-an-ariss-contact.html for full details. To help organizations in preparing their proposals, the ARISS Program Coordinator will offer hour-long online information sessions. These are designed to provide more information regarding US ARISS contacts and the proposal process and offer an opportunity to ask questions. While attending an online information session is not required, it is strongly encouraged. These will be offered Thursday, September 17, at 2000 UTC; Tuesday, September 22, at 2000 UTC, and Wednesday, September 30, at 2300 UTC. Advance registration is necessary. Email ARISS (ariss(a)arrl.org) to sign up for an information session. **************************************************************************** ** >From 2015-12-20 to 2016-01-04, there will be no US Operational Segment (USOS) hams on board ISS. So any schools contacts during this period will be conducted by the ARISS Russia team. **************************************************************************** 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(a)amsat.org or aj9n(a)aol.com. **************************************************************************** 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 http://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? 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(a)sbcglobal.net **************************************************************************** ARISS congratulations the following mentors who have now mentored over 100 schools: Gaston ON4WF with 121 Francesco IKØWGF with 114 Satoshi 7M3TJZ with 112 **************************************************************************** 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. 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 8061 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2015-10-24 06:00 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. http://www.amsat.org/amsat/ariss/news/arissnews.rtf Total number of ARISS ISS to earth school events is 1001. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 966. (***) Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 46. A complete year by year breakdown of the contacts may be found in the file. http://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: Arkansas, Delaware, North Dakota, Rhode Island, South Dakota, Vermont, Wyoming, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: http://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** The successful school list has been updated as of 2015-10-24 06:00 UTC. (***) http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction .rtf Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC. http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 43/44 on orbit Scott Kelly Mikhail Kornienko RN3BF Exp. 44 on orbit Oleg Kononenko RN3DX Kimiya Yui KG5BPH Kjell Lindgren KO5MOS Exp. 45 on orbit Sergey Volkov RU3DIS **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

5 years, 2 months

AO-73/FUNcube Mode change

by Jim Heck

Hi folks, I have just changed the sat into amateur (continuous transponder) mode. Plan is to switch back to auto mode on Sunday 26 Feb 2017 pm UTC as usual. See https://funcube.org.uk/news/ for details of new FUNcube launched last week, and Pls see below for other FUNcube transponder info Have FUN with the transponder. 73s Jim G3WGM and the FUNcube team. AO-73 FUNcube-1 The transponder is normally operational only when the satellite is in eclipse, ie the solar panels are NOT being illuminated. During weekends (from pm Fridays UTC to PM Sundays UTC) the transponder is operational 24/7. When the transponder is switched off, the telemetry beacon is on full power, when the transponder is on the beacon it is on low power. During holidays, eg Christmas, New Year, Easter, etc, the transponder maybe activated for extended periods. Watch AMSAT-BB for announcements which are usually made on Friday evenings (UTC) The nominal transponder frequencies are: Uplink: 435.150 - 435.130 MHz LSB (Inverting) Downlink: 145.950 - 145.970 MHz USB Telemetry Tx: 145.935 MHz BPSK (The passband may be up to 15kHz higher depending on on-board temps. Low temperatures give higher freqs!) FUNcube-2 aka FUNcube on UKube The FUNcube-2 sub-system continues to operate autonomously and, almost continuously, in amateur mode. The transponder is operational and the telemetry downlink is functioning with about 70mW output. The FUNcube-1 Dashboard does not correctly display the telemetry but it does correctly decode the data and uploads it to the FUNcube Data Warehouse from where it can be examined. Most of the real time data channels are operational and these include battery voltages, temperatures and ADCS data coming via the main On Board Computer (OBC). The transponder is interrupted for a few seconds every 2 minutes when the other transmitter sends its CW beacon and, occasionally, for a few seconds when the main OBC reboots (approx seven times each orbit). The nominal transponder frequencies are: Uplink: 435.080 - 435.060 MHz LSB (Inverting) Downlink: 145.930 - 145.950 MHz USB Telemetry Tx: 145.915 MHz BPSK (The passband may be up to 10kHz higher depending on on-board temps. Low temperatures give higher freqs!) EO79 FUNcube-3 Due to power budget constraints the transponder cannot be operational 24/7 and an orbit specific schedule has been developed. The transponder will commence operation 27 minutes after the spacecraft enters sunlight and will stay on for a period of 25 minutes. This schedule may be modified in future months as a result of experience. The nominal transponder frequencies are: Uplink: 435.0723-435.0473 MHz LSB (Inverting) Downlink: 145.946-145.971 MHz USB Further detailed info on EO79 transponder frequencies is at: https://amsat-uk.org/2016/11/10/eo79-funcube-3-transponder-commences-regula… All FUNcube transponders are sponsored by AMSAT-UK and AMSAT-NL. We are very grateful for the assistance given by Innovative Solution In Space Bv, The Netherlands.

5 years, 9 months

TS-2000 Strange behavior

by Kevin M

Hi Mike, I don't believe there is anything wrong with your receive... the 'static' you hear IS the AO-85 downlink. The transmitter is on and transmitting and the signal strength is going up and down due to 'tumbling', ploarity shifting, etc. The reason you hear static is that it's not like SO-50; instead of squelching when there is no signal, AO-85 simply rebroadcasts what it hears... which at the moment is 'nothing', SO it is passing the white noise from it's UHF receiver straight to the 2m transmitter. Eventually you heard a voice there at the end, so yes, you ARE hearing it. If I read the TS-2000 manual correctly, your problem is that you have the PL tone set on the receive band... not the transmit band. The 'T' should be above the sub band display in other words. So since you are not transmitting the proper PL tone of 67.0 Hz, you are not able to hear yourself come through the transponder. See about fixing that and give it another try. And from experience, I'll suggest to double check that even after you get the 'T' on the correct band, verify that it's 67.0 Hz. =^) 73, Kevin N4UFO

5 years, 9 months

BY70-1

by PY5LF

Hi We had a low pass over here minutes ago and i felt the keps BY70-1 are wrong . I start to hear 25 seconds before . Does anyone feels the same ? 73

5 years, 9 months

Re: [amsat-bb] Baofeng Bf-f8

by Roy Dean

Phil, I started out last year using a BF-F8HP and UV-5R for full duplex operation, and sadly experienced desense every single time. Tried the BF as both Tx and Rx radio, desense occured in both. Even stuck band pass filters in the Rx radio feedline... no go. --Roy

5 years, 9 months

Re: [amsat-bb] ARISS Packet

by Alan

Rick, In your original post, you said " I have no decoding packets whatsoever either from ARISS or terrestrial on 144.390." Since RX is in fact working, the most likely transmission problem with the Flex is that compared with traditional rigs, there is considerable latency, or delay, between the audio input and transmission. The result is that the transmitter cuts off before the full packet is sent. Fortunately there is a parameter, TXtail, which will keep the transmitter keyed for a period after the audio is sent. Somewhere in Soundmodem, probably the Modem tab, IIRC. Try setting it for 500 ms or so, and see if that helps. It solved my problem. After you get it working, you can cut that back a bit, if desired. How much is a complicated function of sampling rates, buffer sizes, etc. Another issue is deviation. Too much is much worse than too little. I find that setting VAC at -14 gives me 3 KHz deviation. 73s, Alan WA4SCA <-----Original Message----- <From: Richard Lawn [mailto:[email protected]] <Sent: Tuesday, February 28, 2017 17:01 PM <To: Alan Biddle <wa4sca(a)gmail.com> <Subject: RE:ARISS Packet < <Decoding for me either at ARISS downlink freq or 144.390 isn't the problem. I <seem to have no luck getting any confirmation packets back at 144.390 and I <should think using WIDE I should at least see my own packets echoed back. <Nothing..... < < <Rick, W2JAZ

5 years, 9 months

Upcoming ARISS Contact Schedule as of 2017-02-28 21:30 UTC

by AJ9N＠aol.com

Upcoming ARISS Contact Schedule as of 2017-02-28 21:30 UTC Quick list of scheduled contacts and events: ABOUT GAGARIN FROM SPACE, Space Odyssey Project, Krasnoyarsk, Russia, direct via RVØADW The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Andrei Borisenko Contact was successful Sat 2017-02-25 08:36 UTC (***) Ecole Albert Camus, Rueil-Malmaison, France, College Marcel Pagnol, Rueil-Malmaison, France, and Ecole “Robespierre B.”, Rueil-Malmaison, France, direct via F6KFA The ISS callsign is presently scheduled to be FXØISS The scheduled astronaut is Thomas Pesquet KG5FYG Contact is a go for: Wed 2017-03-01 08:04:44 UTC 77 deg Student Space Technology Association, Knoxville, TN, direct via AA4UT The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Shane Kimbrough KE5HOD Contact is a go for: Wed 2017-03-01 19:08:03 UTC 49 deg Blair Pointe Upper Elementary School, Peru, IN, direct via WD9GIU The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Shane Kimbrough KE5HOD Contact is a go for: Thu 2017-03-09 15:21:33 UTC 80 deg 3rd Junior High School, Komotini, Greece, direct via SV7APQ The ISS callsign is presently scheduled to be OR4ISS The scheduled astronaut is Shane Kimbrough KE5HOD Contact is a go for: Fri 2017-03-10 08:20:46 UTC 28 deg **************************************************************************** ** 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(a)amsat.org or aj9n(a)aol.com. **************************************************************************** *** Message to US Educators Amateur Radio on the International Space Station Contact Opportunity Call for Proposals Proposal Window February 15 – April 15, 2017 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 anticipates that the contact would be held between January 1, 2018 and June 30, 2018. 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 deadline to submit a proposal is April 15, 2017. Proposal information and documents can be found at www.arrl.org/hosting-an-ariss-contact. 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, NASA, and space agencies in Russia, Canada, Japan and Europe sponsor this educational opportunity by providing the equipment and operational support to enable direct communication between crew on the ISS and students around the world via Amateur Radio. In the US, the program is managed by AMSAT (Radio Amateur Satellite Corporation) and ARRL (American Radio Relay League) in partnership with NASA and CASIS (Center for the Advancement of Science in Space). More Information Interested parties can find more information about the program at www.ariss.org and www.arrl.org/ARISS. For proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Sessions go to http://www.arrl.org/hosting-an-ariss-contact. Please direct any questions to ariss(a)arrl.org. **************************************************************************** *** 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(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø 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 http://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? 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(a)sbcglobal.net **************************************************************************** ARISS congratulations the following mentors who have now mentored over 100 schools: Satoshi 7M3TJZ with 123 Gaston ON4WF with 123 Francesco IKØWGF with 119 **************************************************************************** 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. 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 2017-02-28 21:30 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. http://www.amsat.org/amsat/ariss/news/arissnews.rtf http://www.amsat.org/amsat/ariss/news/arissnews.txt Total number of ARISS ISS to earth school events is 1120. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1083. (***) Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 47. A complete year by year breakdown of the contacts may be found in the file. http://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: Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: http://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** The successful school list has been updated as of 2017-02-28 21:30 UTC. (***) http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction .rtf Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC. http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 49 on orbit Shane Kimbrough KE5HOD Andrei Borisenko Sergey Ryzhikov Exp. 50 on orbit Peggy Whitson Thomas Pesquet KG5FYG Oleg Novitskiy **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

5 years, 9 months

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AMSAT-BB February 2017