AMSAT-BB February 2019

182 participants
217 discussions

Re: [amsat-bb] mmstv help
by Walter Holmes/K5WH 08 Feb '19

08 Feb '19

Listen on 145.80 with mmstv software. Walter/K5WH Sent from my Verizon Moto Z Force On Feb 8, 2019 1:32 PM, willie odom sr <kd5cev(a)gmail.com> wrote: > > Did the ISS send pic .. I heard nothing here in houston about 12.01 our > time or were my times wrong...... > > > On Fri, Feb 8, 2019 at 12:27 PM James Brown <jimki6wj(a)sbcglobal.net> wrote: > > > Downloaded MMSTV to prepare for iss . I do not see pd 120 listed as a > > mode. Is the the correct software to use? > > > > My set up is satpc32 controlling ft817 and ic7100 for No. 2 radio and > > g5500 rotor. > > > > will I be able to run sat32 for tracking and also sstv for the picture? I > > presume yes. > > > > Jim KI6WJ > > _______________________________________________ > > 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 > > > _______________________________________________ > 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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Fw: Operating SSB sats
by k6vug＠sbcglobal.net 08 Feb '19

08 Feb '19

Thanks Patrick. Not to spam the BB, but here is one last clip - working K7TAB via CAS-4B this morning. https://drive.google.com/open?id=1DYbg1Ua8_MfZnBjpngBjGxAApB5fcq82 I use the CW beacon to wait for adequate signal and then (at 00:40) switch to the transponder pair, adjusting the uplink with a tone burst until it comes in at about 800 Hz on the bottom display. After that I can move the down-link around the pass-band and don't have to worry about the uplink. HRD (and SatPC32) do a great job of handling the Doppler adjustments. Obviously, you'll notice the signal from the CAS-4B ges pretty strong as soon as it comes up above 15 degrees or so. I keep an eye on the CW beacon (at the left of the waterfall) throughout the pass and watch-out for fading due to foliage, buildings etc. Fast forward to 3:20, I've tuned to K7TAB and start responding. You'll notice that K7TAB drifts a little as he is speaking. However, you'll also notice that K7TAB has moved quite a lot AFTER I have responded and so I have to re-tune the down-link to hear the response properly. Well, that is the issue I wish to illustrate, and am still working on it.... :) Again, sorry for several posts, won't post any more until I have figured it out. Have a great weekend. 73!Umesh, k6vug On Thursday, February 7, 2019, 8:52:05 PM PST, Patrick STODDARD <patrick(a)wd9ewk.net> wrote: Umesh, Very nice! Thanks for sharing the video clip. 73! Patrick From: "k6vug(a)sbcglobal.net" <k6vug(a)sbcglobal.net> To: Patrick STODDARD <patrick(a)wd9ewk.net> Sent: Thursday, February 7, 2019 11:26 PM Subject: Re: [amsat-bb] Operating SSB sats Hi Patrick, About the RTL-SDR, I just wanted to share a short clip I recorded capturing CAS-4A CW beacon with HRD handling the Doppler tracking. https://drive.google.com/open?id=1UCrYTb74ZnVG2Xc3FWlF7YImFasjwCKz 73!Umesh

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US IC-9700 prices announced
by Alan 08 Feb '19

08 Feb '19

Per reports from HamCation, MSRP is $2195. HRO, GigaParts, and DXEngineering are listing them for $2095 for delivery 2Q. 73, Alan WA4SCA

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Icom IC-9700
by BeetleJerald Oliver 08 Feb '19

08 Feb '19

Hope the radio is reduced somewhat in price when the initial surge is over.....May still just keep my Yaesu FT-847. Already have my M2 antenna for L Band, but will need a transverter of some type for TX...Any suggestons appreciated..... KJ4EU Jerry

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ISS SSTV - Old and New
by Robert Bruninga 08 Feb '19

08 Feb '19

Went out with a bunch of students to observe ISS SSTV downlink. ISS was transmitting but I demonstrated how not to do a pass: OLD FUD Approach: 1) Prepped the laptop. Battery was dead 2) rigged up heavy battery and 60 Hz inverter (1 hr to go) 3) Booted laptop but it was locked out of network 4) After three tires at password, it locked me out of all my accounts on every PC at the school 5) Gave up and dug out a Kenwood VC-H1 SSTV handheld to go with a TH-D72 (30m to AOS) 6) VC-H1 batteries were of course dead 7) Found new batteries (10m to AOS) 8) From 20 years ago, had a hard time remembering how to work it 9) Nothing heard at beginning with 3 element yagi 10) commented how this is not unusual for ISS to change schedules 11) Then heard it, but too weak 12) I explained how to track in AZ and EL and Polarity to maximize the signal 13) Had to keep asking the mids for the TIME so I knew where to point MELINNIAL APPROACH: MEANWHILE I noticed some of the students holding their Phones in their hands at arms length and waving them around. They pointed to ISS... The phones showed exactl;y where the ISS was as the AP placed the ISS and sky track on the sky view. Done! Im sure most of you are well aware of these things, but for the other old fuds: The AP was SKYGUIDE: https://itunes.apple.com/us/app/sky-guide/id576588894 And SKYWALK: https://itunes.apple.com/us/app/star-walk-explore-the-sky/id295430577 I am sure there are others. Time for me to get out of the way... ;-( Bob, WB4APR

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Re: [amsat-bb] MMSSTV help
by Alan 08 Feb '19

08 Feb '19

Jim, Auto mode will pick it up, but you can find it by right clicking on one of the visible modes. There are far too many supported to fit on the screen. SatPC32 will work very nicely. 73, Alan WA4SCA <-----Original Message----- <From: AMSAT-BB [mailto:[email protected]] On Behalf Of James <Brown <Sent: Friday, February 08, 2019 12:25 PM <To: amsat-bb(a)amsat.org <Subject: [amsat-bb] mmstv help < <Downloaded MMSTV to prepare for iss . I do not see pd 120 listed as a mode. <Is the the correct software to use? < <My set up is satpc32 controlling ft817 and ic7100 for No. 2 radio and g5500 <rotor. < <will I be able to run sat32 for tracking and also sstv for the picture? I presume <yes. < <Jim KI6WJ <_______________________________________________ <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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SatPC32 and IC-7300
by Alan 08 Feb '19

08 Feb '19

A question came up in a local ham breakfast group. AO-7 and some upcoming launches have modes which include HF frequencies. SatPC32 supports a range of Icom rigs, and is the IC-7300 CAT set close enough to work with one of them? I know, and explained, that Doppler isn't an issue on HF, but it is an interesting question. Has anybody tried this? No guesses, please. :) 73, Alan WA4SCA

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AMSAT-Francophone launches a consultation, open to all, on the amateur satellite radio service. Feel free to participate! Publié le 3 février 2019 par Xtophe
by christophe.mcr 08 Feb '19

08 Feb '19

Dear Satellite / nanosatellite project managers often wish to use amateur radio frequencies for educational and outreach purposes. The amateur radio community thus offers them a tremendous potential for monitoring their fragile conception. They often ask what kind of amateur radio experience would be interesting to board a cubesat or what services they could provide with their communications systems. The answer can be simple: a transponder, but these designers would like to bring novelty and innovation. In order to provide more factual input, AMSAT-F <http://site.amsat-f.org/> has decided to launch an online survey to find out what you do and would like to do as a satellite activity, what you expect from satellite designers and what you can bring to them. *The synthesis of these results will be presented at the second* AMSAT-F meetings « Rencontre spatiale radioamateur » on 9 and 10 March 2019 in Nanterre (France) <http://site.amsat-f.org/2019/01/29/deuxieme-rencontre-spatiale-radioamateur…> Do not hesitate, give your opinion by completing the questionnaire via the link : https://framaforms.org/amsat-francophone-survey-1548716436 <https://framaforms.org/amsat-francophone-survey-1548716436> The survey is in english but hosted on French server. Few guideline could be in French. 73 Christophe Mercier AMSAT-F President

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Yaesu 500 elevation rotator
by Nick Pugh 08 Feb '19

08 Feb '19

If the elevation rotator has been idle for a while it will not start in the up direction. By momentarily pushing the down switch it will move in the up direction. The rotator will work nominally for a while. Any suggestions? Nick k5qxj

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Re: [amsat-bb] AMSAT-Francophone launches a consultation, open to all, on the amateur satellite radio service. Feel free to participate! Publié le 3 février 2019 par Xtophe
by JoAnne K9JKM 08 Feb '19

08 Feb '19

Hmmm, where to begin when so much opportunity is afoot? > ... If I don't have a really good reason to put together a complex and > expensive microwave station, I probably won't do it Yes, a 10 GHz downlink can be converted into a range of frequencies covered with an off-the-shelf SDR for $100-$200. I'll admit that a microwave transmitter is more costly (for the present time) but $100 and some ingenuity to participate in one of amateur radio's next frontiers is likely within reach! Work all the grid squares, all the states, bag all the DX? I see an opportunity to make so many more friends and earn so much wall paper you'll be considering building another wall in the shack so you can display all the certificates ;-) And, you'll still be able to hear that the XYL wants to go to the store, the dog wants out, and you had a really good hot dog for lunch ... oh, behave! Heaven forbid, I gotta learn something new? What if a GEO presented an opportunity for multiple high-definition channels. The proposed DVB-S on a hamsat could bring us ... + A channel for every ham radio podcast and ham radio video cast we know of ... on demand, sans Comcast, or AT&T? + ARRL on line? + Licensing classes on demand? + Self learning for everything we could think of or aspire to produce? + AMSAT meetings and nets in real time? + The next time an entire island gets wiped out by a hurricane real-time delivery of the ground-truth to FEMA in HD quality? + FEMA's ICS training on-demand? + Access some of the above with your 145/440 MHz HT via terrestrial gateways? + Everything ARISS does we'd have a channel? + Good stuff on NASA TV, ariannespace.com, spacex.com ... maybe we could watch? I'm excited ... and, I'm hoping my friends will be able to fill in all the features yet to be named! -- 73 de JoAnne K9JKM k9jkm(a)amsat.org

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AMSAT-BB February 2019