July 2019 - AMSAT-BB - mailman.amsat.org

PSAT2 Status and Voice Ops (and reset)
by Nicholas Mahr KE8AKW 04 Jul '19

04 Jul '19

Hi, Heres more SSTV from PSAT-2 from tonights 01:43 and 00:05 UTC passes. Also got a few PSK31 telemetry frames again on 375hz: PSAT-2 A cbjF bBagjovgpqkaaq aaaa A cbjz bBadkgvmpqjEaot . Heard Scott testing the APRS to Voice several times sucessfully on 145.825. Still no luck on bringing up the PSK31 transponder. Max elevation tonight was 19 degrees! Images can be seen here from tonight: https://twitter.com/KE8AKW/status/1146653199966842880 73 - Nick KE8AKW

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Re: [amsat-bb] PSAT2 Status and Voice Ops (and reset)
by Roy Dean 04 Jul '19

04 Jul '19

https://clyp.it/fesdanzt I can make out "K4KDR" in the first message, but not the message itself. Scott, what did you have it say? I tried to make it say "Shall we play a game", no dice. Hopefully somebody can do that in the future. :) --Roy > Your updates are very helpful as we learn about the capabilities of this > new satellite - thanks Bob! Regarding the text-to-voice, are you saying > that we should not transmit > messages in that format to the normal 'ARISS' path? If not, then what path > should be used for text-to-voice messages? Thanks! -Scott, K4KDR

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Re: [amsat-bb] Type of modulation used by Kenwood Th-d7
by Roy Dean 04 Jul '19

04 Jul '19

FM? APRS is AX.25 1200AFSK Is that what you are looking for? --Roy K3RLD > Hi everybody > Can anyone tell me what kind of RF modulation used by Kenwood Th-d7. > Regards

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Type of modulation used by Kenwood Th-d7
by Abdeslam Salah 04 Jul '19

04 Jul '19

Hi everybody Can anyone tell me what kind of RF modulation used by Kenwood Th-d7. Regards

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Triplexers wanted
by Roger - W7TZ 03 Jul '19

03 Jul '19

In need of three Diamond Antenna Triplexers model MX324. Condition must be to spec. Please provide pic and cost shipped to 97457. Payment by Paypal only. I'm good on QRZ, or my call via ARRL.net. 73, Roger W7TZ CN83ia Grid Busters w7tz.webs.com

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PSAT2 Status and Voice Ops (and reset)
by Robert Bruninga 03 Jul '19

03 Jul '19

PSAT2 digipeating and aprs-to-voice ops are working using the special APRS-to-voice packet format. But not both. A packet with a digipeating path will not be spoken and a properly formatted text-to-voice message will not be digipeated. This is a quirk of the TNC that for some reason does not pass a digipeated packet out its serial port to the Speech CPU. Also the 6 day watchdog timer is about to reset and will probably reboot the spacecraft's comm system overnight. We are letting this fail-safe watchdog timer time out intentionally so we can verify it works. Turns out, the Speech CPU is sleeping longer than we expected and so it turned into a 9 day timer! We hope our command station in Brazil can restore it tomorrow. You can see the alphabetic watchdog timer count (y) as the first character in the APRS-to-voice bulletin: PSAT2>APDIGI,ARISS::BLNg-APRS:y|Q S T: This is the Aee PRS bullettin . It turned to (y) sometime between 1400 and 1700z today and after (z) it will reset (it is 8 hours per count)... If you wonder about the spelling of this bulletin, that is intentional, because it is intended that this bulletin be spoken. We have found that creative spelling can get the sound you want instead of what the text-to-speech processor might come up with. And remember, for text-to-speech, use lower case, or it will spell-out letters if they are uppercase. Hence "Aee PRS" is the correct pronunciation of APRS and not "Aprs" that some people use <wink> ;-) Bob, WB4APR

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Office Closed
by Martha 03 Jul '19

03 Jul '19

The AMSAT Office will be closed Thursday, July 4th and Friday, July 5th -- 73- Martha

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Upcoming ARISS Contact Schedule as of 2019-07-03 19:00 UTC
by aj9n＠aol.com 03 Jul '19

03 Jul '19

Upcoming ARISS Contact Schedule as of 2019-07-03 19:00 UTC Quick list of scheduled contacts and events: Santa Barbara Public Library, Santa Barbara, CA, direct via K6TZ The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Nick Hague KG5TMV Contact was successful: Wed 2019-07-03 17:54:19 UTC 49 deg (***) Watch for livestream at starting at about 17:30 UTC: https://SantaBarbaraCA.gov/citytv2 The ARISS webpage is at http://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 http://www.ariss.org/apply-to-host-an-ariss-contact.html ARISS Contact Applications (United States) For many years I have on purpose not given the actual hyperlinks; I assume the user would do a copy/paste into their favorite browser. I am now thinking that the browsers have all grown up and most should be able to handle the link. Please let me know you experience any issues. So now you should be able to directly click on the link. (***) 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 2019-07-03 19:00 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 http://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2019-07-03 19:00 UTC. (***) http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf The ARISS webpage is at http://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 http://www.ariss.org/apply-to-host-an-ariss-contact.html ARISS Contact Applications (United States) The ARISS webpage is at http://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************************************************************************************************************** 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(a)ariss-eu.org 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: http://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) http://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(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? 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(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulations the following mentors who have now mentored over 100 schools: Satoshi 7M3TJZ with 135 Francesco IKØWGF with 132 Gaston ON4WF with 123 Sergey RV3DR with 118 **************************************************************************** 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 1322. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1265. (***) 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: 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 **************************************************************************** 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_correctio… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 59 on orbit Christina Koch Aleksey Ovchinin Nick Hague KG5TMV **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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A test question!
by Graham Shirville 03 Jul '19

03 Jul '19

Hi All, I am preparing for a satellite talk and QO100 demo this Monday 8th July at the Milton Keynes Amateur Radio Society! I have a slide that shows Oscar 7 as having been launched in 1974 and I am tempted to state that it is the oldest satellite in earth orbit that is still functioning! (not just the oldest Oscar) Would I be correct? I will, of course, explain about how it was "out of service" for some years in the intervening 45. many thanks Graham G3VZV

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PSAT2 status DIGI and Voice are on
by Nicholas Mahr KE8AKW 03 Jul '19

03 Jul '19

Hi Bob! Managed to copy my first SSTV image on 17 degree pas @01:45 UTC today. Looks like its a image from the ROM of your desk. Also managed to copy a PSK31 telemetry frame on 375hz: PSAT-2 A bDmk bBaalfvdpqjEar aaaa A bCph bBamlkujpqjFak . No luck this pass in trying to bring up the PSK31 transponder and seeing my downlink, but this was my first attempt. I will keep trying on 29.481.50. My SSTV image can be seen on my twitter here: https://twitter.com/KE8AKW/status/1146238059698110465 . Also looks like two stations were digipeated in the US on that pass according to FINDU http://www1.findu.com/cgi-bin/pcsat.cgi?absolute=1 . Thanks for enabling the digipeater. We cannot wait here in the higher latitudes to finally hear and work PSAT-2! 73 - Nick KE8AKW

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