July 2017 - AMSAT-BB - mailman.amsat.org

Re: [amsat-bb] Russian Thing
by Joe 18 Jul '17

18 Jul '17

It says once opened it will " It will span 16 square meters (170 square feet)" a Triangle one side of 170 sqft = 18 feet base to peak. But if they are saying 170 sqft total, then divided by 3 = 10 foot tall base to peak. Now for a surface to be reflective, how big does it need to be in terms of wvelength? Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 7/18/2017 11:02 AM, Paul Andrews wrote: > Will this object reflect RF signals? > > Maybe reflect like meteor scatter? > > Maybe too small. > > On Jul 18, 2017 11:58 AM, "Joe" <nss(a)mwt.net <mailto:[email protected]>> wrote: > > he he eh that's why I asked here for a web page or similar I saw > that also, and thought, ummmm I'm interested,, but NOT THAT > INTERESTED!! he he he > > Joe WB9SBD > Sig > The Original Rolling Ball Clock > Idle Tyme > Idle-Tyme.com > http://www.idle-tyme.com > On 7/18/2017 10:29 AM, skristof(a)etczone.com > <mailto:[email protected]> wrote: > > Am I the only person who is worried about downloading an app > from Russia > onto my smartphone? > > Steve AI9IN > > On 2017-07-18 10:50, JoAnne K9JKM wrote: > > Hi Joe, > > Heavens-Above.com now has pass predictions up for the new > Russian > reflector sat "Mayak," listing it as NORAD ID 2017-042F/42830. > http://www.heavens-above.com/PassSummary.aspx?satid=42830 > <http://www.heavens-above.com/PassSummary.aspx?satid=42830> > (that's the page but no predictions were actually listed > the last time > I checked it.) > > Plus Mayak has its own app, available to those who back > the project. > See: http://cosmomayak.com/default#mobileapp > <http://cosmomayak.com/default#mobileapp> > > On 7/18/2017 9:42 AM, Joe wrote: > > While not really a Com bird, it still me be > interesting to spot. > Does anyone know of a tracking site for this? > > http://www.iflscience.com/space/russian-scientists-just-launched-a-controve… > <http://www.iflscience.com/space/russian-scientists-just-launched-a-controve…> > Joe WB9SBD > > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org <mailto:[email protected]>. > 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 > <http://www.amsat.org/mailman/listinfo/amsat-bb> > > > > > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org <mailto:[email protected]>. 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 > <http://www.amsat.org/mailman/listinfo/amsat-bb> >

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Re: [amsat-bb] Russian Thing
by Joe 18 Jul '17

18 Jul '17

Why do you think it will be low in the sky? Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 7/18/2017 11:22 AM, Paul Andrews wrote: > Will this reflector tumble or be stabilized? > > If it's a corner reflector - it could have gain in some direction. > > My guess is that this size object would reflect 2M signals and up. > > The moon is bigger but only reflects 7% of RF energy and it's much > farther away. > > I'm sure someone will try to bounce an RF signal off this mylar sail. > > It should be easy to see from the ground. :) But very low in the > sky. > > 73 - Paul - W2HRO > > > > > > > > > > On Tue, Jul 18, 2017 at 12:16 PM, Joe <nss(a)mwt.net > <mailto:[email protected]>> wrote: > > It says once opened it will > " > It will span 16 square meters (170 square feet)" > > a Triangle one side of 170 sqft = 18 feet base to peak. But if > they are saying 170 sqft total, then divided by 3 = 10 foot tall > base to peak. > > Now for a surface to be reflective, how big does it need to be in > terms of wvelength? > > Joe WB9SBD > > The Original Rolling Ball Clock > Idle Tyme > Idle-Tyme.com > http://www.idle-tyme.com > On 7/18/2017 11:02 AM, Paul Andrews wrote: >> Will this object reflect RF signals? >> >> Maybe reflect like meteor scatter? >> >> Maybe too small. >> >> On Jul 18, 2017 11:58 AM, "Joe" <nss(a)mwt.net >> <mailto:[email protected]>> wrote: >> >> he he eh that's why I asked here for a web page or similar I >> saw that also, and thought, ummmm I'm interested,, but NOT >> THAT INTERESTED!! he he he >> >> Joe WB9SBD >> Sig >> The Original Rolling Ball Clock >> Idle Tyme >> Idle-Tyme.com >> http://www.idle-tyme.com >> On 7/18/2017 10:29 AM, skristof(a)etczone.com >> <mailto:[email protected]> wrote: >> >> Am I the only person who is worried about downloading an >> app from Russia >> onto my smartphone? >> >> Steve AI9IN >> >> On 2017-07-18 10:50, JoAnne K9JKM wrote: >> >> Hi Joe, >> >> Heavens-Above.com now has pass predictions up for the >> new Russian >> reflector sat "Mayak," listing it as NORAD ID >> 2017-042F/42830. >> http://www.heavens-above.com/PassSummary.aspx?satid=42830 >> <http://www.heavens-above.com/PassSummary.aspx?satid=42830> >> (that's the page but no predictions were actually >> listed the last time >> I checked it.) >> >> Plus Mayak has its own app, available to those who >> back the project. >> See: http://cosmomayak.com/default#mobileapp >> <http://cosmomayak.com/default#mobileapp> >> >> On 7/18/2017 9:42 AM, Joe wrote: >> >> While not really a Com bird, it still me be >> interesting to spot. >> Does anyone know of a tracking site for this? >> >> http://www.iflscience.com/space/russian-scientists-just-launched-a-controve… >> <http://www.iflscience.com/space/russian-scientists-just-launched-a-controve…> >> Joe WB9SBD >> >> _______________________________________________ >> Sent via AMSAT-BB(a)amsat.org <mailto:[email protected]>. >> 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 >> <http://www.amsat.org/mailman/listinfo/amsat-bb> >> >> >> >> >> _______________________________________________ >> Sent via AMSAT-BB(a)amsat.org <mailto:[email protected]>. >> 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 >> <http://www.amsat.org/mailman/listinfo/amsat-bb> >> > >

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Re: [amsat-bb] Russian Thing
by Roy Dean 18 Jul '17

18 Jul '17

> > While not really a Com bird, it still me be interesting to spot. > Does anyone know of a tracking site for this? > http://www.iflscience.com/space/russian-scientists-just-launched-a-controve… > > Joe WB9SB > > http://www.n2yo.com/?s=42830 Chip (I believe he goes by) has it as a headliner on his site. Ready to track with 10 day predictions.

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Narrowband tuning of DCI filters?
by Robert Bruninga 17 Jul '17

17 Jul '17

The DCI brand of interdigital bandpass filters are neat for cleaning up reception by blocking out of band Intermod sources etc. But they are too board for any effect on in band signals. Has anyone re-tuned the cavities to all the same frequency to see how well the filter performs as a narrowband filter? Bob, WB4APR

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Test Message Update
by Steve Appleton 17 Jul '17

17 Jul '17

Okay, found the problem. For some reason my ISP had amsat.org as a blocked domain. Not sure why that was but I cleared that and all is right with the world. Thanks to those who responded directly. -k4ph

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ANS 197
by Christopher Bradley 16 Jul '17

16 Jul '17

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: * ARISS Celebrates it’s 20th Anniversary through SSTV Event * 3U CubeSat with FM Transponder Launch Planned for August 16 * International Space Station school contact * NEON - NASA Educators Online Network * Tour de France Special Event Station Includes Satellite Operation * Satellite Shorts From All Over SB SAT @ AMSAT $ANS-197.01 ANS-197 AMSAT News Service Weekly Bulletins AMSAT News Service Bulletin 197.01 >From AMSAT HQ KENSINGTON, MD. July 16, 2017 To All RADIO AMATEURS BID: $ANS-197.01 ARISS Celebrates it’s 20th Anniversary through SSTV Event In commemoration of the 20th Anniversary of ARISS, a Slow Scan Television (SSTV) event is planned for Thursday, July 20 starting around 21:25 UTC. The event plans to feature images from ARISS activities both past and present. This opportunity should cover most of the world during the operation period. The event plans to use a computer on the ISS Russian Segment, which stores images that are then transmitted to Earth using the ham radio, specifically the onboard Kenwood TM D710 transceiver. Those receiving the images can post them at https://ariss-sstv.blogspot.com/ for viewing by the public. The 20 year history of ARISS will be displayed through a collection of 12 unique images sharing the amazing accomplishments of ARISS over the last two decades. SSTV signals will be sent to earth at 145.80 MHz using FM. The SSTV mode of transmission is expected to be PD 120 (PD 180 may be a second option). The event is expected to continue over a two day period. Since it’s inception, Amateur Radio on the International Space Station (ARISS) has provided students an opportunity, through ham radio, to engage in conversation with orbiting astronauts and inspired many to seek careers in science, technology, engineering and math. Consider how you might inspire students in your area through this chance to capture images directly from space to their computers. Please note that the event, and any ARISS event, is dependent on other activities, schedules and crew responsibilities on the ISS and are subject to change at any time. While preparations are being finalized please check for new and the most current information on the AMSAT.org and ARISS.org websites, the AMSAT-BB(a)amsat.org, the ARISS facebook at Amateur Radio On The International Space Station (ARISS) and ARISS twitter @ARISS_status for the latest information on this event. [ANS thanks ARISS for the above information] --------------------------------------------------------------------- 3U CubeSat with FM Transponder Launch Planned for August 16 A 3U CubeSt, FMN-1, is planned for launch on August 16 from China's Jiuquan Satellite Launch Center located in the Gobi desert, Inner Mongolia. FMN-1 will fly an FM repeater: Uplink: 145.945 MHz FM Downlink: 435.350 MHz FM (plus telemetry) A 9k6 BPSK AX25 UHF downlink with an FM uplink on VHF is included. The main mission of the satellite includes a new component experiment and deployable solar panels. IARU coordination information is posted at: http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=567 [ANS thanks the IARU for the above information] --------------------------------------------------------------------- An International Space Station school contact has been planned with participants at ISS R&D conference, Washington, D.C. on 20 July. The event is scheduled to begin at approximately 13:23 UTC. It is recommended that you start listening approximately 10 minutes before this time. The duration of the contact is approximately 9 minutes and 30 seconds. The contact will be a telebridge between NA1SS and W6SRJ. The contact should be audible over the west coast of the U.S. Interested parties are invited to listen in on the 145.80 MHz downlink. The contact is expected to be conducted in English. This ARISS contact will be conducted with Youth in Aviation Program students from the East Coast Chapter, Tuskegee Airmen, Inc. (ECCTAI) attending the ISS Research and Development conference as part of the conference's STEM day. ECCTAI is one of the largest Tuskegee Airmen, Inc. chapters in United States and serves the Washington DC area. ECCTAI is dedicated to keeping alive the history, achievements, and importance of the original Tuskegee Airmen. The term, "Tuskegee Airmen," refers to the men and women, who were involved in the so-called "Tuskegee Experience", the World War II Army Air Corps program to train African Americans to fly and maintain combat aircraft. ECCTAI strives to increase understanding of the "Tuskegee Experience" by honoring the accomplishments and perpetuating the history of the men and women who participated in the "Tuskegee Experience" and to introduce young people to the world of aviation and space through its Youth in Aviation Program (YIAP). YIAP motivates and inspires America's youth to strive for similar excellence of these earlier pioneers, exposing them to aviation and space careers (Level I), attending FAA ground school (Level II) and receiving aircraft flight instruction or interning at an FAA certified A&P (Airframe and Powerplant) facility (Level III). [ANS thanks ARISS for the above information] --------------------------------------------------------------------- NEON - NASA Educators Online Network ANNOUNCEMENTS Free STEM Education Webinars From NASA Educator Professional Development The NASA STEM Educator Professional Development Collaborative (EPDC) at Texas State University is presenting a series of free webinars open to all educators. Join NASA education specialists to learn about activities, lesson plans, educator guides and resources that bring NASA into your classroom. Registration is required to participate. To register, simply click on the link provided beneath the webinar description. July 17, 2017, at 6:30 p.m. ET: Solar Eclipse: Edible Experiments/ The Great American Eclipse / Eclipse Book Reviews (Grades K-12) -- Explore resources for making edible models to teach about lunar and solar eclipses. Browse websites with hands-on activities on subjects such as protection from UV rays. Learn about a collection of children's literature to use for studying the eclipse. These activities will be great for summer camps and back-to-school events before the solar eclipse on Aug. 21, 2017. Register online to participate. https://www.eiseverywhere.com/263976 July 18, 2017, at 6:30 p.m. ET: Solar Eclipse: Guest Scientist -- High-Altitude Ballooning (Grades K-12) -- Get an overview of high- altitude ballooning during eclipses with Bernhard Beck-Winchatz from the STEM Studies Department at DePaul University in Chicago, Illinois. Beck-Winchatz has worked on several NASA projects using weather balloon flights that provide affordable access to a spacelike environment for student research. Register online to participate. https://www.eiseverywhere.com/263980 July 19, 2017, at 6:30 p.m. ET: Solar Eclipse: Building Your Own Eclipse Equipment for Your Classroom on a Budget (Grades K-12) -- Learn how to build inexpensive models to teach solar eclipse concepts in the classroom. Register online to participate. https://www.eiseverywhere.com/263974 July 20, 2017, at 6:00 p.m. ET: Solar Eclipse: What, When, Where, How and Safety (Grades K-12) -- On Aug. 21, 2017, most Americans will experience their first total solar eclipse in almost 40 years. What is a solar eclipse? Where will the eclipse be visible? When will the eclipse occur? How can the eclipse be viewed safely? This webinar will explore these questions using some of the many NASA resources and classroom lessons supporting this solar event. Learn about the important safety of properly viewing the eclipse with your students. Register online to participate. https://www.etouches.com/263468 For the NASA STEM Educator Professional Development webinar schedule, go to: http://www.txstate-epdc.net/events/ --------------------------------------------------------------------- Tour de France Special Event Station Includes Satellite Operation F, France: TM24TDF is a special event call operating around the Tour de France 2017. QRV until July 21 on HF and via satellites. QSL via F6KHS (d/B). [ANS thanks DX Newsletter DXNL 2049 - July 12, 2017 for the above information] --------------------------------------------------------------------- Satellite Shorts From All Over + AMSAT Journal Needs Your Words and Wisdom The AMSAT Journal is looking for interesting articles, experiences and photos to share with other AMSAT members. Writing for the Journal is an exellent way both to give back to the AMSAT community and to help others learn and grow in this most fascinating aspect of the amateur radio avocation. Author deadlines for upcoming Journals through 2017 include: Sept/Oct Edition September 15 Nov/Dec Edition November 15 Send your manuscripts and photos, or story ideas to: journal (at) amsat.org For more information visit: https://www.amsat.org/how-to-write-for-the-amsat-journal/ [ANS thanks Joe KB6IGK for the above information] + Need to contact AMSAT-NA? AMSAT-NA 10605 Concord St, #304 Kensington, MD 20895-2526 USA Toll-Free: +1 (888) 322-6728 Phone: +1 (301) 822-4376 Fax: +1 (301) 822-4371 info(a)amsat.org [ANS thanks AMSAT-NA for the above information] + For information on AMSAT and AMSAT-Related Nets visit: https://www.amsat.org/amsat-and-amsat-related-nets/ [ANS thanks AMSAT-NA for the above information] + AMSAT Symposium AMSAT NA announces that the 2017 AMSAT Space Symposium will be held on Friday through Sunday, Oct 27, 28, 29, 2017 in Reno, Nevada. Location will be at the Silver Legacy Resort , 407 N Virginia Street, in Downtown, Reno. For more information visit: https://www.amsat.org/amsat-symposium/ With less than four months left for Symposium, now is the time to start writing your papers and preparing your presentations. [ANS thanks the Symposium Committee for the above information. --------------------------------------------------------------------- /EX 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, Christopher Bradley, KG5JUP kg5jup at amsat dot org

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SatPC32 and HDSDR
by Tom Schuessler 16 Jul '17

16 Jul '17

All, A quick question on using SatPC32 to control HDSDR. I have a FCDP+ and can control it via CAT via virtual Serial Port Emulator software. I seem to have some success using the Kenwood TS 2000 settings for Rig for this software/device. Problem is that when I select a Doppler.SQF line in the CAT dialog, HDSDR changes to the wrong SSB mode. I have to manually change it to USB on HDSDR. FM works fine, but SSB modes start out wrong. Is there a better radio emulation to use than the TS 2000? Also, If I want to use the HDSDR/FCDP+ as the RX and my FT847 as TX, which radio should best be radio 1 and which should be 2? Thanks much. Tom Schuessler N5HYP

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Test Message
by Steve Appleton 16 Jul '17

16 Jul '17

I have not received a digest of the amsat-bb mailing list in weeks. I’m sending this message to see if it gets reflected back in tomorrows digest. -

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Long shot: August eclipse intersecting any Oscars?
by David G0MRF 16 Jul '17

16 Jul '17

Hi Greg Sorry, only just seen your post. I believe the answer is yes. I'll have a look at the exact pass times over the weekend. AO-73 will fly through the path of the eclipse on the 21st August and the effects should be seen on its real time telemetry. AO-73 has temperature and light sensors on its solar panels and this data is collected and sent every 5 seconds. You should easily see the change in light levels and perhaps, a change in external temperature as heat energy is lost as IR radiation. - Although this will depend on the degree of coverage of the sun during the satellite pass. You may also see the total panel current ( The sum of the current supplied by the solar panels) drop dramatically. Fortunately most LEO sats are designed to handle 'eclipses' of 35 minutes, so this minor glitch in power collect should not adversly affect operation. All of these will be displayed as graphs if you are collecting data on the Funcube dashboard. - Free windows download. In the case of AO-73, it usually switches to transponder mode in eclipse. Will it do that on the 21st ?? Good luck. If you give it a try, let us know how you get on. David Hi folks, I was asked this on our club's weekly net last week. I expect the answer is no, but thought I should check... Will any of the ham satellites be affected by next month's solar eclipse across the USA? To be affected, the satellite's track (at some 18,000 mph) would need to intersect some portion of the eclipse (not necessarily the path of totality), which I understand is moving at some 1,500 mph. Given the speeds involved, that's unlikely. But we've got a number of satellites in sun synchronous orbits, so it's not impossible. Any way to predict this? If there are any, the telemetry from the event would be an awesome bit of data for students' analysis. Greg KO6TH p.s. I remember being at work (I think in the 1990's) during an eclipse. As I recall, the spot of totality was out in the Pacific Ocean, off the coast of Mexico. The real-time satellite weather background on my Unix workstation looked like someone had burned a hole in it with a cigarette.

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Heil Pro Micro Dual 6 dynamic for sale
by Matthew Stevens 16 Jul '17

16 Jul '17

I have a Heil Pro Micro Dual 6 dynamic headset for sale, in excellent condition. Works as it should, and no cosmetic damage. Included is a heil yaesu modular headset adapter and/or icom 8 pin (foster plug) adapter (no cap, for the dynamic element headset). I have switched to a different style of headset so this one is excess to my needs. I'm asking $95 shipped for the headset plus whichever of the adapters you want. For an extra $10 you can have both adapters, handy if you have both Icom and Yaesu radios. - Matthew kk4fem Sent from my iPhone

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