November 2016 - AMSAT-BB - mailman.amsat.org

PSAT digipeater is back on.
by Robert Bruninga 19 Nov '16

19 Nov '16

I noticed PSAT digipeater is back on. As well as its 28.121 ten meter PSK31 uplink and 435.350 MHz downlink. Bob, WB4APR

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XW-1/HO-68 Restores work in this morning
by Alan Kung 19 Nov '16

19 Nov '16

Hello, China's professional space TT&C network monitored XW-1 telemetry in this morning, the Satellite has restored work, if someone heard the CW beacon signal at 435.790 MHz, Please let me know. Thanks & 73! Alan, BA1DU

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FUNcube-1 (AO-73) mode change
by Wouter Weggelaar 19 Nov '16

19 Nov '16

Hi All, Just to report that FUNcube-1, AO-73, is now back in autonomous operation. The transponder will be active when the spacecraft is in eclipse during the week. I hope that many have had the opportunity to work FUNcube during the extended transponder schedule during the AMSAT symposium. 73 Wouter PA3WEG

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ISS on rtl SDR
by Andrew Rich 19 Nov '16

19 Nov '16

I would like to talk with people that are using rtl SDR dongles to receive and then decode packet from the ISS Andrew ----------------------------- Sent from my iPhone Andrew Rich e vk4tec(a)tech-software.net w www.tech-software.net m 0419 738 223

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Fwd: Re: G5500 AZ/EL controller Glitching?
by KO6TZ Bob 18 Nov '16

18 Nov '16

Bob, The "out voltage adjust" pots are used to calibrate the "external control" via the DIN jack going to the computer interface. The out voltage pots will not affect the meter. They will have a major impact on computer control if you use it. As you stated, the "Full scale" pots calibrate the meter system. The next likely cause would be something in the rotor cable shorting or grounding. Beyond that, there are too many possibilities for an email. BOB KO6TZ On 11/18/2016 02:21 PM, Robert Bruninga wrote: >> When you say the voltage pots do not change anything, >> I suppose you mean adjusting them does not fix the problem. > No, I mean they do not affect either AZ or EL meter reading. Turn pot > end-to-end and meters still correctly read the AZ and EL and an external > voltmeter does not show any change on the We used the full scale pots to > calibrate the system, since the volts adjust pots do nothing.. > > Further, when the 10% glitch happens, it stays down permanently even with > the motors not turning and no fingers on the switches... until it glitches > back up eventually.. > > Thanks > Bob > > -----Original Message----- > From: AMSAT-BB [mailto:[email protected]] On Behalf Of KO6TZ Bob > Sent: Friday, November 18, 2016 5:01 PM > To:[email protected] > Subject: Re: [amsat-bb] G5500 AZ/EL controller Glitching? > > Bob, > > My guess is that since it is only when turning Left, the problem is with > the "bow-tie" or something mechanical in the break that is causing a lot > of drag on the motor when turning left. Try measuring the voltage between > lug 6 & 4 turning left and compare to the voltage between 6 and > 5 turning right. I suspect the load or drag is drawing down the secondary > side of the AC transformer, affecting both the feed back circuits and the > drive motor. > > Easier said than done, since as you state the issue is intermittent and > the switching action clears the problem. > > When you say the voltage pots do not change anything, I suppose you mean > adjusting them does not fix the problem. That is, it is not a dirty pot > issue. > > BOB > KO6TZ > > > Apparently the internal 6v supply is dropping since both meters glitch > down and an externmal voltmeter on the rotator feedback terminals also > show the same10% drop in the 6v line. (though it appears to be a constant > 5.5 volts not 6) And then glitches down from the 5.5. > > Also noticed the Adjust voltage pots on the back do not change anything. > > > _______________________________________________ > Sent viaAMSAT-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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G5500 AZ/EL controller Glitching?
by Robert Bruninga 18 Nov '16

18 Nov '16

What is the cause of intermittent glitching on the G5500 rotor controller? Every now and then (and only when transitioning the LEFT switch), BOTH positioning meters jump down about 10%. And then with a few more flips of the switch, you can get it back. Apparently the internal 6v supply is dropping since both meters glitch down and an externmal voltmeter on the rotator feedback terminals also show the same10% drop in the 6v line. (though it appears to be a constant 5.5 volts not 6) And then glitches down from the 5.5. Also noticed the Adjust voltage pots on the back do not change anything. Sorry, I know we see these same questions ALL the time, but this is the first time in 20 years for me… and when Mine wasn’t broke, it was easy to ignore all the emails… Bob

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Delayed schedule on AO-73 / FUNcube-1
by Wouter Weggelaar 18 Nov '16

18 Nov '16

Hi All, Just to let you know that I have made an error setting up FUNcube for the weekend, and it is not yet in manual transponder mode. Please stand by, I will attempt a 1.1 degrees pass for setting it, and otherwise it will have to be tomorrow morning. Sorry folks! Wouter PA3WEG

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W1NU SK
by rsoifer1＠aol.com 18 Nov '16

18 Nov '16

Through "Silent Keys" in QST, I learned of the passing of Vic Politi, W1NU. He was 93. Before going into assisted living several years ago, he was on top of the DXCC Honor Roll. Vic held Satellite DXCC No, 3, earned entirely via LEO satellites. In 1992, he was AMSAT SKN's first Best Fist winner. RIP. 73 Ray W2RS Subject:

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Upcoming ARISS Contact Schedule as of 2016-11-18 08:00 UTC
by AJ9N＠aol.com 18 Nov '16

18 Nov '16

Upcoming ARISS Contact Schedule as of 2016-11-18 08:00 UTC Quick list of scheduled contacts and events: Col·legi Asuncion de Ntra. Sra., Barcelona, Spain, telebridge via W6SRJ The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Shane Kimbrough KE5HOD Contact was successful: Thu 2016-11-17 08:25:19 UTC 40 deg (***) Private Salesian High School named of St. Dominic Savio, Wroclaw, Poland, telebridge via W6SRJ The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Shane Kimbrough KE5HOD Contact is a go for: Fri 2016-11-25 11:12:47 UTC 65 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. 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 121 Francesco IKØWGF 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. 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 2016-11-18 08:00 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 Total number of ARISS ISS to earth school events is 1093. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1058. (***) 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 2016-11-18 08:00 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. 49 on orbit Shane Kimbrough KE5HOD Andrei Borisenko Sergey Ryzhikov **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Programming a Kenwood TH-D72A for ISS Digi Contacts
by Les Rayburn 18 Nov '16

18 Nov '16

Just purchased a used Kenwood TH-D72A HT. Hoping to use it along with an Arrow antenna to make more satellite contacts while traveling. While I primarily expect to use it to make voice contacts on the FM birds, I’m also interested in making packet contacts through the International Space Station. Could someone point me towards a programming guide for this type of application? Any other pointers in using the radio to make packet QSOs through the ISS? Grateful for all suggestions. 73, Les Rayburn, N1LF 121 Mayfair Park Maylene, AL EM63nf Member WTFDA, IRCA, NRC, ARLL, and AMSAT. Former CPC Chairman for NRC & IRCA. Elad FDM-S2 SDR, AirSpy SDR, Quantum Phaser, Wellbrook ALA1530 Loop, Wellbrook Flag, Clifton Labs Active Whip. Grateful as always.

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