AMSAT-BB September 2016

141 participants
192 discussions

Mini Grid Expedition FN13/14
by Ken Alexander 30 Sep '16

30 Sep '16

I'm going to do a mini grid expedition Friday Sept 30 on the FN13/14 line, only the following passes: FO29 at 1456, 1639 & 1829, AO-7 at 1709, SO-50 at 1857 Note: I will be calling KI4RO at the beginning of the SO-50 pass. Please give him some room, then I'll work as many others as conditions permits. Thanks and 73, Ken Alexander VE3HLS

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FO-29 near apogee PSE SKED EA-VU 21.40 UTC today
by Juan Antonio 29 Sep '16

29 Sep '16

Hi all, 21.40 UTC today FO-29 will have coverture between Spain and India, I would like to try some QSO with the EAST!. Whatever station from ASSIA will be welcome! Juan Antonio EA4CYQ --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus

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New M2 Leo-Pack - hints
by Rafael Peña 29 Sep '16

29 Sep '16

I've recently joined this group and I want to thank the moderator for allowing me be here. I have been reading lots of threads as I am on a Sat diet lately. My first Qs were done recently from YN land this past summer and mainly using SO-50 (thanks to those who've made it possible). Now I am all thirst for more :) The wait is over....My new Leo-Pack arrived on yesterday! I am looking for any tips on the setup of it, or mainly, what should I watch for. I opened the box to spread the parts out and ... - It is not like setting up a A4S or F12 10-40- Took me a few minutes to decipher the Dimension Sheet - Realized the need to were globes...I got that aluminum dust on my hands- Downloaded a English to Metric software to convert the inches into metric (it is easier and more precise) This antenna will go on top of an existing F12 (at roof top) using Yaesu G-5500 with other plug and play devices. LMR600 coax 60' x 2 attached to rig FT-847 / SatPC32 / Orbitron, etc. I was told my Robert at M2 to place it 5' higher than the F12 and to hope for the best :( Here in DC towers are no-no. Again, thanks for any tip anyone can provide. My email... pinoleronica(a)hotmail.com Rafael A Peña NN3RP Washington, DC

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Alsat-1N (Pratham ) - Update
by GW1FKY＠aol.com 29 Sep '16

29 Sep '16

Hi again, I listened for Alsat-1N ( Pratham ) on the subsequent pass -same frequency and equipment but also with an update to the keps. Those issued on the BBS posting. I regret to inform you that I heard nothing ? The pass was lower and in a sector were I have difficulty due to screening and reflection problems - Weather had also changed with very low cloud,mist and rain. Even AO-73 would not decode the dashboard data in the same sector during the same period. I am certain about hearing a CW beacon in the previous pass. I had been setting up my gear for an AO-73 in that earlier pass and had USB selected for the downlink data. Noticed that Alsat-1N was also approaching in the same ball part of time so decided to have a listen on the 145.980 Mhz frequency. That was when I started to hear the CW beacon but still had USB selected I selected CW and got a better copy as it approached. I wish that I been set up to record but of course was not planning for that particular satellite and pass. Had I done so it would have been useful to clarify any doubt about things and I am unsure why the subsequent pass showed no activity. Hopefully the satellite is alive and active and someone else also monitored and maybe even recorded the pass. Ken Eaton GW1FKY

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Re: [amsat-bb] Pratham: IITB Student Satellite
by Mineo Wakita 29 Sep '16

29 Sep '16

I, JE9PEL received the very weak Pratham CW beacon on 29 Sep 2016. Because I was not able to be imaged these fast speed signal, I have to cooperate imaging to JA0CAW. So I confirmed to be a signal from Pratham in the figure below. Imaged by JA0CAW Received by JE9PEL Pratham = 41785U 16059C 11:31-11:44 UTC, 29 Sep 2016 Ele 70 deg, SE-E-N, 145.980MHz CW http://www.ne.jp/asahi/hamradio/je9pel/60929pr2.jpg http://www.dropbox.com/s/isppuxsnebtlpr1/60929pr2.wav?dl=0 JE9PEL, Mineo Wakita

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Re: [amsat-bb] Pratham: IITB Student Satellite
by Simon Brown 29 Sep '16

29 Sep '16

Well, I'm hearing (and seeing) the CW beacon. There's a lot of chirp but it's definitely your satellite. I'll listen on the next pass which goes much higher. Software showing the position of the satellite: https://www.dropbox.com/s/z736lp52jvintxo/Screenshot-2016-09-28-201411.png?… SDR Software receiving: https://www.dropbox.com/s/7ek5sfmv0eurola/Screenshot-2016-09-28-201552.png?… note you see Move1 on the left. Simon Brown, GK4ELI http://sdr-radio.com -----Original Message----- From: AMSAT-BB [mailto:[email protected]] On Behalf Of Aayush Yadav Sent: 28 September 2016 09:47 To: Nitin Muttin <vu3tyg(a)yahoo.co.in>; AMSAT-BB(a)amsat.org Subject: Re: [amsat-bb] Pratham: IITB Student Satellite Greetings everyone, NORAD has update the TLE's for Pratham as follows: Pratham id: 2016-059C 1 41785U 16059C 16271.69947962 .00004609 00000-0 88934-3 0 9999 2 41785 98.2049 329.2442 0030494 263.1090 96.7138 14.63229411 193 Kindly note the changes. We thank you all for all the help you have provided till now. Thank you. Kind regards, Team Pratham

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VP5/AA4FL
by Jay Garlitz 29 Sep '16

29 Sep '16

Gearing up for a VP5 visit and operation Oct. 16 - Nov. 2. Will be part of VP5DX CQWW SSB team but still have time for portable SAT operations. I worked 9 stations in a practice run from the University of Florida campus a few weeks ago. I should be able to operate SATs from Oct. 19-28. Equipment will be a FT-817 and arrow II. Will also have a TH-D7A as a backup for the FM birds. Practice runs were on AO-73 and FO-29 using the FT-817. I will have another practice day on Sunday Oct. 9th. Please mark your calendar and work me that day from EL-89tp. My signal will be readable but not strong, which I am sure you will not mind when I am the DX station you are chasing. I will use that day as a teaching experience for the Gator Amateur Radio Club student members. You can see photos from our last event on their Facebook page. Feel free to friend me as well. I have been told it has been ten years since there has been a SAT operation from VP5. My operation will not be from Provo (FL31) but from Middle Caicos (FL41cu). Check out the QTH on the VP5DX QRZ page. Do any AMSAT members have FL41 in their log? Looking forward to working you from FL41cu. 73, Jay AA4FL

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ISS ping box
by Andrew Rich 29 Sep '16

29 Sep '16

Hello A while back I had a Linux computer that would listen for the ISS then start sending beacons Trying to cut back on wildly transmitting all day and night Has anyone used the raspberry Pi ? It lends itself nicely to such a beacon project Listen then beacon for ten minutes 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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2m preamp
by David G0MRF 28 Sep '16

28 Sep '16

Hi Nick. My suggestion would be to have a look at the SPF5043. http://eu.mouser.com/ProductDetail/RFMD-Qorvo/SPF5043Z/?qs=p6lVfQR1GSoUob90… Probably a little more than 10mA, but a nice device. Needs a good LPF as it has gain from 50MHz to 4GHz Thanks David G0MRF The satellite team at the University of Louisiana is look for a VHF preamp design to fly in a sat. The amp should have 1. Gain > 20 db 2. NF < 1 db 3. DC volts 3.3 vdc 4. Current ~ 10 ma Any help is appreciated de nick k5qxj

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XW-2A - XW2F
by Andrew Rich 28 Sep '16

28 Sep '16

Hello Are the XW2A - 2F different payloads in space ? I get the CW well one after the other like a congo line Is there a digital component I can play with ? Andrew ------------------------------------------ Andrew Rich VK4TEC w www.tech-software.net e vk4tec(a)tech-software.net m +61 (4) 19 738 223 m 0419738223

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AMSAT-BB September 2016