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

GPS TIME TURNOVER
by Harvey N. Vordenbaum 05 Apr '19

05 Apr '19

What is the significances of the GPS time/date rollover? K5hv

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Re: [amsat-bb] AISAT-1 WORKING OVER NA
by alex weimer 05 Apr '19

05 Apr '19

44104 19018AC is what I am using ! > On April 5, 2019 at 1:27 PM Greg D <ko6th.greg(a)gmail.com> wrote: > > Do you mean catalog # 44104? (vs 14104...) > > Greg KO6TH > > > > > > alex weimer via AMSAT-BB wrote: > > > > > > Umesh: Here are the TLE's for AISAT-1 > > 14104 19018AC AISAT-1 > > AISAT-1,145825,145825,FM,FM,NOR,0,0 1200 BAUD DIGIPEATER > > Hope this helps 73 JACK KC7MG The satellite is listed under NEW in SATPC32 > > > > > > > > > > > > > > On April 4, 2019 at 8:09 PM "k6vug(a)sbcglobal.net" mailto:[email protected] <k6vug(a)sbcglobal.net> mailto:[email protected] wrote: > > > > > > Are the TLEs for this sat part of the normal download from AMSAT ? > > > If not could please share the TLEs. I don't have the updated ones. > > > Thanks. > > > > > > 73! > > > Umesh, k6vug > > > > > > > > > > > > On Thursday, April 4, 2019, 11:16:04 AM PDT, alex weimer via AMSAT-BB <amsat-bb(a)amsat.org> mailto:[email protected] wrote: > > > > > > > > > Using M2 horizontally polarized 7 el M2 horizontal yagi and 432 Mhz M2 12 el yagi horizontally polarized as well. 25 watts power. > > > No other stations heard throughout pass ! > > > > > > > > > > On April 4, 2019 at 12:56 PM alex weimer < ingejack(a)cox.net mailto:[email protected] mailto:[email protected] > wrote: > > > > > > > > > > > > Great pass at 1642 Z using both ARISS and AISAT-1 and UISS had no problem digipeating from DM42 throughout the pass 73 JACK KC7MG DM42 > > > > > > > > > > _______________________________________________ > > > Sent via AMSAT-BB(a)amsat.org mailto:[email protected]. 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: https://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: https://www.amsat.org/mailman/listinfo/amsat-bb > > > > >

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Spoken for
by n4qwf 05 Apr '19

05 Apr '19

The 9600 PacComm board has been claimed. 73<<John

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Digital Voice Transponder Satellites
by Clayton Coleman W5PFG 05 Apr '19

05 Apr '19

Historically, strong opinions about digital vs. analog voice transponders have been made public here on the AMSAT-BB. Since Chinese satellite LO-90 recently re-entered and is no longer available, I wanted to hear from those that are pro-digital-voice satellites on their experiences using it. LO-90 was single channel but it offered a perfect platform to experiment with digital voice on an amateur satellite. I congratulate the team that built it for trying something new and giving us an opportunity to play with it. It is my observation that the satellite had very little use, as evidenced by the telemetry dashboard statistics. Why was that? I seem to recall many pro-digital voice conversations on the AMSAT-BB in the past. This was an excellent opportunity to try digital voice, and yet so few did. My excuse was that “life got in the way” and I didn’t spend the time until near the very end of its operational life. Unfortunately, I let time slip away and didn’t get to enjoy this fascinating digital voice experiment as much as I should have. Thankfully I was able to get my station up and running in time to hear my own voice, decode, and submit telemetry before re-entry. Are we ready for digital voice? Why or why not? 73, Clayton W5PFG

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ANS-095 AMSAT News Service Special Bulletin - AMSAT Files Comments in FCC Orbital Debris Mitigation Proceeding
by Paul Stoetzer 05 Apr '19

05 Apr '19

AMSAT NEWS SERVICE SPECIAL BULLETIN ANS-095.01 In this Special Bulletin: * AMSAT Files Comments in FCC Orbital Debris Mitigation Proceeding SB SAT @ AMSAT $ANS-095.01 ANS-095 AMSAT News Service Special Bulletin AMSAT News Service Special Bulletin 333.01 From AMSAT HQ KENSINGTON, MD DATE April 5, 2019 To All RADIO AMATEURS BID: $ANS-095.01 AMSAT Files Comments in FCC Orbital Debris Mitigation Proceeding The Federal Communications Commission has proposed several rules changes related to the amateur satellite service as part of a Notice of Proposed Rulemaking (NPRM) related to the mitigation of orbital debris. AMSAT believes several of these rule changes would have an extremely detrimental affect on the amateur satellite service and AMSAT's ability to launch and operate new satellites, including AMSAT's upcoming GOLF satellites. Today, AMSAT filed comments on the proposed rulemaking. In the comments, AMSAT argues that amateur satellites often have longer mission lifespans than other small satellite missions and that the Commission should take a mission duration of 5 to 10 years into account when determining whether or not an amateur satellite will meet the orbital debris regulations by transferring to a parking orbit or re-entering the atmosphere within 25 years of mission completion. The current practice is to assume a "zero year" mission and to require that amateur satellites either transfer to a parking orbit or re-enter within 25 years following launch. AMSAT also urged the Commission to consider alternatives to a proposed rule that would restrict satellites in Low Earth Orbit that plan to meet the orbital debris mitigation guidelines through atmospheric re-entry to altitudes of 650 km or less. AMSAT noted that, had this rule been in place, AO-85 and AO-91 would not have been able to be deployed in their current ellipitcal orbits with apogees of approximately 800 km, despite the fact that both of these satellites will re-enter within 25 years due to their low perigees. Additionally, AMSAT noted that current plans for the GOLF-1 satellite are to meet orbital debris mitigation guidelines through atmospheric re-entry by deploying a drag device that will ensure re-entry within 25 years despite deployment at an altitude of above 1,000 km. This proposed rule would prohibit GOLF-1's deployment at that altitude. The Commission's proposed rules would also require that amateur satellite licensees indemnify the government against any claims made against the United States due to the operation of the satellite. AMSAT believes this proposal would end the ability of AMSAT, or any other entity in the United States, to launch and operate amateur satellites and urges the Commission to consider alternatives, such as establishing a fund to pay any such claims, noting that the likelihood of such a claim is low. For amateur satellites with propulsion, the Commission proposes a rule that would require any command links as well as satellite telemetry be encrypted. While AMSAT understands and agrees that a satellite carrying a propulsion system must have an encrypted command link, the proposal to require all satellite telemetry be encrypted is unnecessary and counter to the spirit of the amateur service. AMSAT notes that open access to telemetry is expected of amateur satellites and is critical to the educational component of amateur radio satellites. Finally, AMSAT proposes that the Commission exempt amateur space stations co-located on other spacecraft from the orbital debris mitigation regulations, including any indemnification rule. Noting that AMSAT has pursued opportunities to fly a payload as a rideshare aboard government or commercial satellites, AMSAT argues that, as the satellite's owner will need to meet orbital debris mitigation requirements to obtain the license in the primary mission's service, requiring the amateur licensee to meet the orbital debris mitigation requirements as well is redundant. AMSAT proposes that Part 97 be amended to state that amateur space stations co-located on spacecraft with space stations authorized under Part 25 of the Commission's regulations (for commercial spacecraft) or by the National Telecommunications and Information Administration (NTIA) (for government spacecraft) are exempt from these regulations. AMSAT's comments as filed may be downloaded at https://tinyurl.com/ANS-095-Comments The NPRM is International Bureau Docket #18-313 and is available at https://docs.fcc.gov/public/attachments/FCC-18-159A1.pdf Interested parties may file reply comments by May 5th at https://www.fcc.gov/ecfs/ [ANS thanks AMSAT Executive Vice President Paul Stoetzer, N8HM, for the above information] /EX In addition to regular membership, AMSAT offers life memberships, and sustaining donors to AMSAT Project Funds, will be eligible to receive additional 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 student rate for a maximum of 6 post-secondary years in this status. Contact Martha at the AMSAT Office for additional student membership information. 73 and Remember to help keep Amateur Radio in space, This week's ANS Contributing Editor, Paul Stoetzer, N8HM n8hm at amsat dot org

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One more freebie
by n4qwf 05 Apr '19

05 Apr '19

Thanks to my friend Mark N2QT I have one more PacComm 9600 baud modem board to give away for the cost of shipping. If you can use it let me know. Please only request it if you can make use of it. First come first serve. 73<<John

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Re: [amsat-bb] AISAT-1 WORKING OVER NA
by Roy Dean 05 Apr '19

05 Apr '19

Thanks for the feedback, everybody. So far I haven't heard from anybody that used less than 25 watts, so this one may be a little deaf. I will attempt it with my D710 this weekend, and try to verify. --Roy K3RLD

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AISAT-1 working over NA
by alex weimer 04 Apr '19

04 Apr '19

When explaining my antenna setup I only meant to advise what I have at my qth for antennas. Of course AISAT-1 is only on 145.825 so of course it cannot be accessed via 435Mhz Sorry for any problems ...

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UT1FG/MM QSL PROCEDURE
by John Papay 04 Apr '19

04 Apr '19

Yuri, UT1FG/mm, is headed to Kalningrad (UA2) and according to marinetraffic.com, he will be there around 16April. Yuri will leave the ship there and go on vacation until next season. Yuri would like those who want to confirm their contacts, to do so by following the procedure to create a .pdf file that he can print, confirm and mail out from Kaliningrad. Instructions for creating the .pdf file are on papays.com/sat Please do not forget to include your mailing address in the header per the example. He would like to receive the qsl logsheets about one week before he arrives in port. You can send them to me later than that, but he may not have time to process them as he approaches port. That decision is up to you. I will forward them to Yuri as long as he is still underway. Send your logsheets to my qrz.com email address. Yuri was in HL90 on the 1818z 04April pass of AO-7. 73, John K8YSE --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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Re: [amsat-bb] AISAT-1 WORKING OVER NA
by Roy Dean 04 Apr '19

04 Apr '19

Jack, can you post antenna used and Tx power? Thanks. --Roy K3RLD > Great pass at 1642 Z using both ARISS and AISAT-1 and UISS had no problem > digipeating from DM42 throughout the pass 73 JACK KC7MG DM42

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