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Re: [amsat-bb] SO-50 and AO-91 trials and tribulations
by Andrew Glasbrenner 20 Feb '19

20 Feb '19

>The one thing I’ve not messed with is the Audio Balance -it’s still at the default 50/50 setting. Could this be why I’ve not been able to hear myself? >Is it that critical? Yes, critical. 100% to the downlink band. 73, Drew KO4MA

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Bare UHF QFH antenna as TX antenna for AO-91/92 ?
by Pavel Milanes Costa 20 Feb '19

20 Feb '19

Hi to all... Does any of you have a reference of the use of a 1/2 turn QFH antenna for TX to AO-91/92... I have picked up an old UHF commercial radio (Kenwood TK-860, 5 / 25W) after being a few years off the sats because of not having an UHF radio (I have a KG-UV8E on the way... Last weekend I rescued my homebrew cross yagui hand-held antenna and found that the storage time was bad on the 70cm part, the 2m part is usable... The other UHF antenna at hand is a 1/2 turn QFH antenna So I was wondering to use the QFH as uplink and the yagui (or a cross dipole + LNA) for the downlink. Any experience/advance on this? 73 CO7WT Pavel.

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FM Birds, New Grids, and Chaos
by Les Rayburn 20 Feb '19

20 Feb '19

Since getting back into satellites a few months ago, I set my first goal to be completing VUCC. 76 grids confirmed, and hoping to possibly finish up this week. I’m meeting with the VUCC card checker this week to sign off on my 2 Meter VUCC. That took over five years, since I’m limited to a single 6 element Yagi in the attic. At least half of those contacts came via WJST meteor scatter. Thought it would be nice to get both 2 Meter and Satellite at the same time. Most of my contacts have come on the linear birds, with over 2/3 of them on FO-29. I realize that there is a lot more activity and grid activation on the FM birds—so I need to spend more time there. But the chaos of that type of operation just doesn’t appeal to me. Plus the noise levels in the attic make it difficult for me to hear the FM birds very well. SO-50 comes in “pretty well” but the AO birds are often covered with noise and difficult to hear. Any tips to improve my success rate on FM? Other than completely avoiding weekend operation! :-) 73, Les Rayburn, N1LF Maylene, AL EM63nf AMSAT #38965, ARRL Life Member, CVHS Life Member, SVHF Member

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UT1FG/MM
by R.T.Liddy 20 Feb '19

20 Feb '19

Grid Chasers, Just checked eQSL and noticed that 21 QSLs from UT1FG/MM showed up from over several years!!! What a surprise!!! I only use LoTW for SAT contacts, so I hope they are over there, too. GL/73, Bob K8BL

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FUNcube Warehouse
by David Johnson 20 Feb '19

20 Feb '19

Hi, I am doing some config on the server, there may be a few short outages over the next few hours. The Dashboards will recover when they detect the server is back up. Thank you for your patience. - Dave, G4DPZ

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Receiving MYSAT-1 telemetry
by Ken Swaggart 20 Feb '19

20 Feb '19

I've been trying to decode the 1.2k BPSK telemetry from MYSAT-1 (44045) without success. I'm using UZ7HO's SoundModem set for BPSK AX.25 1200 bd. The SDR is set to USB with 4 KHz bandwidth and the signal is strong with a 25 dB SNR. The received signal is right in the center of the soundmodem's waterfall between the upper and lower indexes for that BPSK mode. I'm obviously missing something here! 73, Ken, W7KKE

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Re: [amsat-bb] Decaying Satellites (RAFT shows it)
by Roy Dean 20 Feb '19

20 Feb '19

Ok, after listening to RAFT's last message, I do believe I will have nightmares tonight. --Roy K3RLD > <http://aprs.org/craft/save-raft.html>http://aprs.org/craft/save-raft.html > It was still working up to 2 hours before re-entry. Might have even been > closer, but we may not have had someone in range of it on its last > bleep... > Bob, Wb4APR

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Decaying Satellites
by Francis Geraci 19 Feb '19

19 Feb '19

I am wondering if, as a Sat. decays, getting closer to Earth, will there be "better" comms ? Guess they will be moving faster. Will the Keps "decay"? Interference from "reentry" heating ? Battery's gone first ? Solar panels "ripped" off. Or, Just GONE ! Orbital mechanics at it best. Wondering what the "mechanics" of re-entry are. Can't be "pretty". Poor little satellites. So many people, worked SO hard to get them there. Just curious. W1FXX - Francis

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Re: [amsat-bb] Decaying Satellites (RAFT shows it)
by Robert Bruninga 19 Feb '19

19 Feb '19

They speed up as they re-enter and it is all over in a single orbit or so. Lots of hams captured the re-entry of the APRS RAFT satellite and you can see it warming over the last few days and then rapid rise in the last 12 hours or so: http://aprs.org/craft/save-raft.html It was still working up to 2 hours before re-entry. Might have even been closer, but we may not have had someone in range of it on its last bleep... Bob, Wb4APR -----Original Message----- From: AMSAT-BB <amsat-bb-bounces(a)amsat.org> On Behalf Of Francis Geraci Sent: Tuesday, February 19, 2019 5:32 PM To: Suryono Adisoemarta via AMSAT-BB <amsat-bb(a)amsat.org> Subject: [amsat-bb] Decaying Satellites I am wondering if, as a Sat. decays, getting closer to Earth, will there be "better" comms ? Guess they will be moving faster. Will the Keps "decay"? Interference from "reentry" heating ? Battery's gone first ? Solar panels "ripped" off. Or, Just GONE ! Orbital mechanics at it best. Wondering what the "mechanics" of re-entry are. Can't be "pretty". Poor little satellites. So many people, worked SO hard to get them there. Just curious. W1FXX - Francis _______________________________________________ Sent via AMSAT-BB(a)amsat.org. 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

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Upcoming ARISS Contact Schedule as of 2019-02-19 21:30 UTC
by aj9n＠aol.com 19 Feb '19

19 Feb '19

Upcoming ARISS Contact Schedule as of 2019-02-19 21:30 UTC Quick list of scheduled contacts and events: Huntington High School, Huntington, TX, direct via KI5AJL The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is TBD Contact is go for: Mon 2019-02-25 19:39:52 UTC 25 deg (***) ARISS Contact Applications (United States) The ARISS-US program’s education proposal window should go open in the spring of 2019. 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, click here. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD ARISS-Japan, Asia, Pacific and Australia: Keigo Komuro, JA1KAB, Japan Amateur Radio League (JARL) ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) ****************************************************************************** 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 135 Francesco IKØWGF with 132 Gaston ON4WF with 123 Sergey RV3DR 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 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2019-02-19 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 1292. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1235. 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 **************************************************************************** The successful school list has been updated as of 2019-02-14 16:30 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. 58 on orbit Oleg Konenenko David St-Jacques KG5FYI Anne McClain **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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