May 2018 - AMSAT-BB - mailman.amsat.org

IC-706MKIIG work through satellites
by Max 16 May '18

16 May '18

Good afternoon, Tell me, please, what I need to start working through satellites using this transceiver. Thank you.

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Re: [amsat-bb] RadFxSat/Fox-1B Subject of SpaceDaily.com Article
by Roy Dean 15 May '18

15 May '18

I clicked on the "RadFxSat" link at the bottom (of the article), and it appears that the specs are all wrong? Or am I just really ill-informed? --Roy K3RLD > SpaceDaily.com published an article on May 15 which gives nice mention to > AMSAT, RadFxSat/Fox-1B: "What Happens After Launch: Two NASA Educational > CubeSats" > http://www.spacedaily.com/reports/What_Happens_After_Launch_Two_NASA_Educati > onal_CubeSats_999.html or try http://tinyurl.com/AMSAT-RadFX-Fox1B if the > -bb line wrap clobbers > the URL. -- > 73 de JoAnne K9JKM > k9jkm at amsat.org <http://www.amsat.org/mailman/listinfo/amsat-bb>

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RadFxSat/Fox-1B Subject of SpaceDaily.com Article
by JoAnne K9JKM 15 May '18

15 May '18

SpaceDaily.com published an article on May 15 which gives nice mention to AMSAT, RadFxSat/Fox-1B: "What Happens After Launch: Two NASA Educational CubeSats" http://www.spacedaily.com/reports/What_Happens_After_Launch_Two_NASA_Educati onal_CubeSats_999.html or try http://tinyurl.com/AMSAT-RadFX-Fox1B if the -bb line wrap clobbers the URL. -- 73 de JoAnne K9JKM k9jkm(a)amsat.org

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Re: [amsat-bb] when are TLE's too old to use?
by Stephan Greene 15 May '18

15 May '18

After reading Ray's reminder that the old kep bulletins are online, I tried an experiment running SatPC32 WinAOS for a 24 hour period using the current keps (from last Friday's bulletin) and a set from the end of March (~45 days, which is about how many days there are until Field Day give or take). Summary of results for all the regularly operating FM and SSB satellites I can reach here and ISS: 78 passes at 5 deg or better in 24 hours Excluding ISS, largest AOS difference was 1 minute (assuming SatPC32 rounds to nearest minute, call it 1:30). Differences in predicted period (length) of pass were 1 minute, including ISS; roughly evenly distributed between shorter and longer. Differences in predicted max elevation was up to 7 degrees, average was 0.95 deg. The largest differences were associated with higher elevation passes, so not a big impact on ability to use. I didn't check for horizon skimmers where a small change in the calculations could result in no pass or a marginal pass. Conclusion: For general planning purposes, keplerian element data is useful at least 1.5 months out. Possibly longer. I'd be much more careful for planning a max distance attempt (horizon skimmers at both ends) and old keps are probably useless for computer-control of radios and antennas. And my planning for Field Day is going to be relatively unchanged. 73 Steve KS1G

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AMSAT/TAPR Banquet Ticket Deadline Tomorrow (May 15th)
by Paul Stoetzer 14 May '18

14 May '18

Please remember that the deadline for purchasing tickets to the AMSAT/TAPR Banquet is tomorrow at 18:00 EDT (22:00 UTC). Tickets will not be available at Dayton. Tickets may only be purchased via the AMSAT online store at https://www.amsat.org/product/tapramsat-joint-hamvention-banquet/. All users of the AMSAT store must log in with your callsign. If you find yourself unable to log in or reset your password, please email me at n8hm(a)amsat.org and I will update your email address in our system so you can reset your password. I will try to complete this as soon as possible given tomorrow's deadline, but if you are not sure of your account status, please do not wait until the last minute to attempt to purchase your tickets. Thank you. 73, Paul Stoetzer, N8HM Executive Vice Presdient Radio Amateur Satellite Corporation (AMSAT)

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New CAMSAT Satellites - Scheduled for September 2018 Launch
by Paul Stoetzer 14 May '18

14 May '18

CAMSAT, the Chinese Amateur Satellite Group, has submitted requests to the IARU for frequency coordination for three new amateur satellites. CAS-5A is a 6U CubeSat with several amateur transponders: A 30 kHz wide 15 meter to 10 meter linear transponder, a 15 kHz wide 15 meter to 70 cm linear transponder, a 30 kHz wide 2 meter to 70 cm linear transponder, and a 2 meter to 70 cm FM repeater. The satellite also has 10 meter and 70 cm CW beacons as well as a 70 cm 4.8k / 9.6k GMSK telemetry downlink. CAS-5B is a 90 mm L x 80 mm W x 50 mm H 0.5 kg femtosatellite with a 70 cm CW beacon. CAS-5A and CAS-5B are scheduled to launch in September from Jiuguan Launch Center into a 539 km x 533 km 97.5 degree inclination orbit. CAS-6 is an amateur payload aboard a 50 kg microsatellite with a 20 kHz wide 70 cm to 2 m linear transponder, a VHF CW beacon, and a 4.8k GMSK telemetry downlink. Launch is planned from a Sea Launch Pad from the China Academy of Launch Vehicle Technology in September into a 579 x 579 km 45 degree inclination orbit. CAS-5A coordination request: http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=619 CAS-5B coordination request: http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=620 CAS-6 coordination request: http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=622 https://www.amsat.org/camsat-sep-2018/

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CAT control of the Yaesu FT-991/FT-991A
by Erich Eichmann 14 May '18

14 May '18

Hi, I have added CAT control of the FT-991/FT-991A to SatPC32 and would appreciate if someone else tested the new .exe file before I replace the setup files. The file can be downloaded here: http://www.dk1tb.de/SatPC_Files_f_FT991.zip The zip file contains the modified SatPC32.exe (English version), 2 little data files and an instruction file. I connected the FT-991A to the PC via a RS-232 cable and (after installation of the USB driver) also via it's USB port. Both connections work (the USB connection only via the "Enhanced" port). 73s, Erich, DK1TB

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UBAKUSAT
by Jean-Pierre Godet 13 May '18

13 May '18

Received around 0500 UTC orbit nr 12 (?) 437.325 MHz GMSK 9k6, a frame about each minute. Nothing from IRAZU nor 1KUNS-PF till now. At the same time, near IRAZU, was something, narrow, looking like 1K2, about 437.300. Have a nice day ! Jean-Pierre F5YG

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Camb-Hams on Islay Island Include Satellite Operation - May 13-18
by JoAnne K9JKM 13 May '18

13 May '18

Here is an island activation that falls in between the AMSAT News Service bulletin cycles ... EU-008. Members of the Camb-Hams will once again be active as GS3PYE/P, but this time from Islay Island between May 13-18th. The Camb- Hams have been activating the Scottish Isles each year since 2008. As in the past, ten or more operators will be active on all bands and many modes from 4m to 80m, 2m & 70cm for Satellites and 2m & 23cm for EME. The HF bands will be covered by four simultaneous stations while the 6m & 4m stations will have a great take-off towards the UK and Europe. All stations will be able to run at the full UK power limit. EME operations will use 150W to 55 elements on 23cm and 400W to 17 elements on 2m, primarily on JT65, but also available for CW skeds - if your station is big enough. Satellite operations on 2m & 70cm will use X-Quad antennas and a fully automatic Az/El tracking system. Activity is planned on AO-7 (mode B), VO-52, FO-29, SO-50 & AO-73. All the up-to-date plans and progress will be on <dx.camb-hams.com>. Most importantly, this is a group of good friends doing what they enjoy, so please give them a call and enjoy the trip with them. They will be active on the major social networks before, during and after the trip, you can check on their progress and interact with the operators via their blog <dx.camb-hams.com> or through Twitter, Facebook and YouTube [see links below]. Please check their Web page for details on how to arrange skeds on the more challenging bands, modes, VHF and EME. All links are available via: http://dx.camb-hams.com QSL via OQRS (info on QRZ.com) or M0VFC direct or via bureau. <dx.camb-hams.com> <facebook.com/CambHams> <twitter.com/g3pye> <youtube.com/CambHams> [via Ohio/Penn DX Bulletin #1364]

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Memory Settings for FM Satellites
by Pedro Converso 13 May '18

13 May '18

On http://amsat.org.ar/FMSATS.txt 73, lu7abf, Pedro

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