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

Upcoming ARISS Contact Schedule as of 2018-03-14 08:00 UTC
by aj9n＠aol.com 13 Mar '18

13 Mar '18

Upcoming ARISS Contact Schedule as of 2018-03-14 08:00 UTC Quick list of scheduled contacts and events: Gymnasium Räddningsgymnasiet Sando, Sandöverken, Sweden, telebridge via K6DUE The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Scott Tingle KG5NZA Contact is a go for: Thu 2018-03-15 11:12:55 UTC 86 deg Watch for live stream at https://www.youtube.com/channel/UCdW96C_lHQx81qCSbW-Jzbw Templestowe Valley Primary School, Templestowe, Victoria, Australia, telebridge via VK4KHZ The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Scott Tingle KG5NZA Contact is a go for: Mon 2018-03-19 08:43:46 UTC 27 deg Watch for live stream on the EchoLink AMSAT conference server live. (***) ****************************************************************************** ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to http://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net **************************************************************************** ARISS congratulations the following mentors who have now mentored over 100 schools: Francesco IKØWGF with 132 Satoshi 7M3TJZ with 128 Gaston ON4WF with 123 Sergey RV3DR with 102 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2018-03-14 08:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. http://www.amsat.org/amsat/ariss/news/arissnews.rtf http://www.amsat.org/amsat/ariss/news/arissnews.txt Total number of ARISS ISS to earth school events is 1214. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1163. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 47. A complete year by year breakdown of the contacts may be found in the file. http://www.amsat.org/amsat/ariss/news/arissnews.rtf Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: http://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** The successful school list has been updated as of 2018-03-08 02:00 UTC. http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction .rtf Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC. http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 54 on orbit Scott Tingle KG5NZA Norishige Kanai Alexander Skvortsov **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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HDSDR and SDR Play2
by Paul Overn 13 Mar '18

13 Mar '18

Just purchased the SDR Play and using HDSDR for the software. I plan on using this for. FM and Linear sats. I was trying this system out today on the FM sats, and used my D72 to transmit. The sound coming from my HDSDR doesn’t seem as clear as my D72. What are some tips and tricks (settings) in HDSDR to clear up some of the static and other noise. Any hints in general would be appreciated. Thanks. KE0PBR Paul Overn Sent from my iPad

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Re: [amsat-bb] AO-91 and circular polarization?
by Todd W Deckard 13 Mar '18

13 Mar '18

Greetings Jerry, thank you for this (yes I meant AO-92). If I understand, you are saying the the satellite uses a conventional linear antenna. However AO-92 is easy enough to access that a 3db loss from the polarity mismatch b/t linear and circular is not significant. Correct? Todd Sent from my iPhone > On Mar 11, 2018, at 6:46 PM, Jerry Buxton <n0jy(a)amsat.org> wrote: > > Todd, > > Correct is not really a consideration, the way I see it. Will a CP > antenna work? Yes. Polarization should not matter for AO-92. (BTW I > presume you mean AO-92, not AO-91 in which case L band just flat won't > work no matter the antenna, period.) :-) > > I use RHCP because I built my antenna for AO-51 and that is was in use > at the time. I believe that when CP is used on a satellite, at least in > the AMSAT history, it has been RHCP most of the time so building for > RHCP may have advantages for future satellites. > > Jerry Buxton, NØJY > >> On 3/11/2018 15:44, Todd W Deckard wrote: >> Would it be correct to use a CP antenna on the L-band uplink for AO-91? If so which polarization? >> >> Just purchased an ICOM X-2 on ebay that gets me 1.2ghz and the temps are getting civilized so it’s about time to get back on the air ... >> >> My elev. over azimuth system is already swinging more mass than it was geared for and i’m looking to cook up a small antenna that doesn’t add too much straw to the camel. >> >> I would like to go Helical just because ... >> >> if anyone has an alternate suggestion I’d listen to any and all. >> >> Thanks >> Todd >> KE0CMD >> Sent from my iPhone >> _______________________________________________ >> 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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Out of the Footprint
by Douglas Tabor 13 Mar '18

13 Mar '18

Will be out of the AMSAT-NA footprint for a month. It’s nothing anyone did, but don’t want folks to be wondering “where did he go”. Have already been making some plans for the 3rd week of April - NE and WY grid corners in particular. Stay tuned. Some great DX happening now and a lot of new ops on - will miss that, but rest assured, I’ll be evangelizing AMSAT and ham radio satellites wherever we go. Vy 73 from Doug, N6UA and Pam, K0ZXZ

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Re: [amsat-bb] 1.2Ghz signal sources
by W M WILLOUGHBY 13 Mar '18

13 Mar '18

Thanks to everyone for the informative answers. Red KC4LE

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Re: [amsat-bb] 1.2Ghz signal sources
by W M WILLOUGHBY 13 Mar '18

13 Mar '18

1.2 GHz earth to space only: Is that due to FCC regs or is it just the evolved convention? I am also curious to know what equipment satellite operators are using for L band? Red KC4LE

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Upcoming ARISS Contact Schedule as of 2018-03-13 18:30 UTC
by aj9n＠aol.com 13 Mar '18

13 Mar '18

Upcoming ARISS Contact Schedule as of 2018-03-13 18:30 UTC Quick list of scheduled contacts and events: Gymnasium Räddningsgymnasiet Sando, Sandöverken, Sweden, telebridge via K6DUE The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Scott Tingle KG5NZA Contact is a go for: Thu 2018-03-15 11:12:55 UTC 86 deg Watch for live stream at (***) https://www.youtube.com/channel/UCdW96C_lHQx81qCSbW-Jzbw Templestowe Valley Primary School, Templestowe, Victoria, Australia, telebridge via VK4KHZ The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Scott Tingle KG5NZA Contact is a go for: Mon 2018-03-19 08:43:46 UTC 27 deg ****************************************************************************** ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to http://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net **************************************************************************** ARISS congratulations the following mentors who have now mentored over 100 schools: Francesco IKØWGF with 132 Satoshi 7M3TJZ with 128 Gaston ON4WF with 123 Sergey RV3DR with 102 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2018-03-13 18:30 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. http://www.amsat.org/amsat/ariss/news/arissnews.rtf http://www.amsat.org/amsat/ariss/news/arissnews.txt Total number of ARISS ISS to earth school events is 1214. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1163. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 47. A complete year by year breakdown of the contacts may be found in the file. http://www.amsat.org/amsat/ariss/news/arissnews.rtf Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: http://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** The successful school list has been updated as of 2018-03-08 02:00 UTC. http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction .rtf Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC. http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 54 on orbit Scott Tingle KG5NZA Norishige Kanai Alexander Skvortsov **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Until March 31 - The AmazonSmile Triple Donation Promotion Now Under Way
by JoAnne Maenpaa 13 Mar '18

13 Mar '18

The AmazonSmile Triple Donation Promotion Now Under Way Triple your impact! Until March 31, Amazon is tripling the donation rate on your first AmazonSmile purchase. You can name AMSAT to receive the donation from your purchase. https://smile.amazon.com -- 73 de JoAnne K9JKM k9jkm(a)amsat.org

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AO73/FUNcube-1 Mode
by Graham Shirville 13 Mar '18

13 Mar '18

Hi All, AO73/FUNcube-1 is now in amateur mode with the transponder on. Have fun 73 Graham G3VZV

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K2BSA/5 on AO-91 this week.
by tjschuessler＠verizon.net 12 Mar '18

12 Mar '18

Jim Wilson, K5ND and myself, N5HYP will be teaching Radio Merit Badge classes at Camp Wisdom, Dallas, TX, EM12 Tuesday, March 13 and Wednesday, March 14th. We will be using the K2BSA/5 call. Our plan is to do one AO-91 pass a day. On Tuesday we will be doing the 19:47Z AOS Western US pass and on Wednesday, the 18:33Z AOS pass favoring the eastern US. We should have 15 scouts with us each time so please give us a call and a shout out to the boys and maybe we will get them to shout back. 73, Tom Schuessler, N5HYP

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Re: [amsat-bb] lost email
by Todd W Deckard 12 Mar '18

12 Mar '18

Greetings. That may have been mine. I fat-fingered the cut and paste and cc’d you somehow. As always, folks were very helpful and I have been sufficiently schooled in polarization and cubesats to answer my questions. Best Todd Sent from my iPhone

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lost email
by Bob- W7LRD 12 Mar '18

12 Mar '18

One of you sent me a note about L band helix antenna. Please send again, ab I have yours - thanks 73 Bob W7LRD Seattle

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Kenwood TS-2000 Birdie
by vimone＠alice.it 12 Mar '18

12 Mar '18

Hello, is there anybody that has solved the Birdie problem on this Radio? If yes please how? Thanks. 73's de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 ************************************* ******* GSM +39 328 7110193 ******* ****** SMS +39 328 7110193 ****** ************************************* 73's de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 ************************************* ******* GSM +39 328 7110193 ******* ****** SMS +39 328 7110193 ****** *************************************

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Upcoming ARISS Contact Schedule as of 2018-03-12 19:00 UTC
by aj9n＠aol.com 12 Mar '18

12 Mar '18

Upcoming ARISS Contact Schedule as of 2018-03-12 19:00 UTC Quick list of scheduled contacts and events: Gymnasium Räddningsgymnasiet Sando, Sandöverken, Sweden, telebridge via K6DUE The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Scott Tingle KG5NZA Contact is a go for: Thu 2018-03-15 11:12:55 UTC 86 deg Templestowe Valley Primary School, Templestowe, Victoria, Australia, telebridge via via VK4KHZ (***) The ISS callsign is presently scheduled to be NA1SS (***) The scheduled astronaut is Scott Tingle KG5NZA Contact is a go for: Mon 2018-03-19 08:43:46 UTC 27 deg (***) ****************************************************************************** ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to http://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net **************************************************************************** ARISS congratulations the following mentors who have now mentored over 100 schools: Francesco IKØWGF with 132 Satoshi 7M3TJZ with 128 Gaston ON4WF with 123 Sergey RV3DR with 102 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2018-03-12 19:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. http://www.amsat.org/amsat/ariss/news/arissnews.rtf http://www.amsat.org/amsat/ariss/news/arissnews.txt Total number of ARISS ISS to earth school events is 1214. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1163. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 47. A complete year by year breakdown of the contacts may be found in the file. http://www.amsat.org/amsat/ariss/news/arissnews.rtf Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: http://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** The successful school list has been updated as of 2018-03-08 02:00 UTC. http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction .rtf Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC. http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 54 on orbit Scott Tingle KG5NZA Norishige Kanai Alexander Skvortsov **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: [amsat-bb] AO-91 and circular polarization?
by Todd Deckard 12 Mar '18

12 Mar '18

Greetings Jerry, thank you for this (yes I meant AO-92). If I understand, you are saying the the satellite uses a conventional linear antenna. However AO-92 is easy enough to access that a 3db loss from the polarity mismatch b/t linear and circular is not significant. Correct? Todd Sent from my iPhone > On Mar 11, 2018, at 6:46 PM, Jerry Buxton <n0jy(a)amsat.org> wrote: > > Todd, > > Correct is not really a consideration, the way I see it. Will a CP > antenna work? Yes. Polarization should not matter for AO-92. (BTW I > presume you mean AO-92, not AO-91 in which case L band just flat won't > work no matter the antenna, period.) :-) > > I use RHCP because I built my antenna for AO-51 and that is was in use > at the time. I believe that when CP is used on a satellite, at least in > the AMSAT history, it has been RHCP most of the time so building for > RHCP may have advantages for future satellites. > > Jerry Buxton, NØJY

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Oscar satellite status page
by alex weimer 12 Mar '18

12 Mar '18

has anyone else had a problem with the Amsat Satellite status page. It seems several of us when clicking on a satellite get no response as to who entered the info. However when you enter the info, it takes but all you see is whether it is red blue or yellow, Not who entered the info as normal.. What is the procedure for correcting this problem ?? JACK KC7MG

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ZF2AE Grand Cayman - ZF2AE/ZF8 Little Cayman QRT - LOTW Soon
by Adrian Engele 12 Mar '18

12 Mar '18

Folks, I am now back in Chicago from my vacation as of yesterday. This was going to be a "light on satellite" operation and it appears I worked more passes than originally planned.I know I made many people happy but also disappointed a few due to equipment and location issues. I will be transcribing the recordings in the coming days and uploading to LOTW and eQSL hopefully by next weekend, so please be patient for the EK99 grid Although I prefer LOTW, if you did send me a card with an SASE I will respond with a very cool card in return. I am very casual operator and I don't get much on the satellites. Thanks for pulling me out in the pileups on FO-29 and AO-7. Sorry I did not do more FM satellites. That one AO-92 pass was enough for me to pass on doing more. Plus there are some local ZF stations that do periodically get on FM sats. Please do look into using other satellites like CAS-4B or EO-88. I got on a few passes that were completely empty. These are loud, easy to use and easy to work linear satellites. QRT for 2018. Thanks again! 73, Adrian AA5UK - ZF2AE

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W3HQX Perry F. Crabill SK
by Larry 11 Mar '18

11 Mar '18

To all Metro DC area amateur radio operators: I am saddened to report to the amateur radio community that Perry F. Crabill, W3HQX, member of AMSAT, born in 1920, formerly of Washington DC and suburban Maryland and until his passing of Winchester Virginia, is now a Silent Key at age 97, as reported in Friday's Winchester Star. Perry was first licensed as W3HQX in "19ought38" as he was wont to say, worked for C&P telephone for many years, served in the US Navy in World War Two as a radio technician (passing the difficult Eddy test,) and was active for almost 70 years in a variety of amateur radio activities. Known affectionately by the 147.300 repeater's "Question Of the Day" group as "The Professor", Perry had a wide range of on-the-air acquaintances. We are diminished by his passing. There will be a memorial service and celebration of his life held on Saturday March 24th at 3:00 PM at the Jones Funeral Home at 228 S. Pleasant Valley Road, Winchester, VA 22601, 540-662-2523, http://www.jonesfuneralhomes.com/ This memorial service is open to the public and especially to all members of the amateur community. On display will be the early logbooks from W3HQX, including his first dating from August of 1938, QSL cards, and other memorabilia from his long life. Please forward this announcement to any who may be interested. Those who knew Perry are welcome to share anecdotes from Perry's life; those may be presented at the service or forwarded to Larry Wright, W8ANT for inclusion. Larry Wright W8ANT __

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Re: [amsat-bb] AO-91 and circular polarization?
by Nick Hart 11 Mar '18

11 Mar '18

If you can make the direction switchable without adding too much weight, that can be helpful. We did an ARISS QSO this week and switched the polarity in the middle of it. It was just the best thing for that particular pass. ------ Original Message ------ Received: Sun, 11 Mar 2018 04:49:46 PM PDT From: Jerry Buxton <n0jy(a)amsat.org> To: amsat-bb(a)amsat.org Subject: Re: [amsat-bb] AO-91 and circular polarization? Todd, Correct is not really a consideration, the way I see it. Will a CP antenna work? Yes. Polarization should not matter for AO-92. (BTW I presume you mean AO-92, not AO-91 in which case L band just flat won't work no matter the antenna, period.) :-) I use RHCP because I built my antenna for AO-51 and that is was in use at the time. I believe that when CP is used on a satellite, at least in the AMSAT history, it has been RHCP most of the time so building for RHCP may have advantages for future satellites. Jerry Buxton, NØJY On 3/11/2018 15:44, Todd W Deckard wrote: > Would it be correct to use a CP antenna on the L-band uplink for AO-91? If so which polarization? > > Just purchased an ICOM X-2 on ebay that gets me 1.2ghz and the temps are getting civilized so it’s about time to get back on the air ... > > My elev. over azimuth system is already swinging more mass than it was geared for and i’m looking to cook up a small antenna that doesn’t add too much straw to the camel. > > I would like to go Helical just because ... > > if anyone has an alternate suggestion I’d listen to any and all. > > Thanks > Todd > KE0CMD > Sent from my iPhone > _______________________________________________ > 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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2018 AMSAT Field Day
by Bruce 11 Mar '18

11 Mar '18

The rules for AMSAT Field Day have been posted on the web page. Select Events from the main menu and click on AMSAT Field Day on the Satellites or... use this direct link https://www.amsat.org/field-day/ 73...bruce -- Bruce Paige, KK5DO AMSAT Director Contests and Awards AMSAT Board Member 2016-2018 ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT* Also live streaming MP3 at http://www.amsatnet.com Podcast at http://www.amsatnet.com/podcast.xml or iTunes Latest satellite news on the ARRL Audio News http://www.arrl.org AMSAT on Twitter http://www.twitter.com/amsat

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AO-91 and circular polarization?
by Todd W Deckard 11 Mar '18

11 Mar '18

Would it be correct to use a CP antenna on the L-band uplink for AO-91? If so which polarization? Just purchased an ICOM X-2 on ebay that gets me 1.2ghz and the temps are getting civilized so it’s about time to get back on the air ... My elev. over azimuth system is already swinging more mass than it was geared for and i’m looking to cook up a small antenna that doesn’t add too much straw to the camel. I would like to go Helical just because ... if anyone has an alternate suggestion I’d listen to any and all. Thanks Todd KE0CMD Sent from my iPhone

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Re: [amsat-bb] help on m^2 polerzatiow switch
by Ronald G. Parsons 11 Mar '18

11 Mar '18

A few months ago, M2 had a tech note on that subject on their web site, but it seems to have been removed. Contact them – they surly have a copy. Ron W5RKN

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Strange orbit
by Pedro Converso 11 Mar '18

11 Mar '18

Yesterday some not ham satellites were launched, classified as O3Bxx. They have equatorial 7800 Km height orbits, with amazing coverage. Take a look at http://amsat.org.ar/pass.htm?satx=43232 and click on icon to see coverage. Wish some day we hams could have that kind of orbit. 73, LU7ABF, Pedro

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help on m^2 polerzatiow switch
by Nick Pugh 11 Mar '18

11 Mar '18

Does anyone on the list have a schematic of the M^2 ps-2m switch or know how to check the conunity of the switch? nick Cell 337 258 2527 Helping UL become a world Class Engineering and Educational School Disagree I Learn

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Symptoms of TS-2000 birdie
by Burns Fisher 11 Mar '18

11 Mar '18

Hi all, I'm wondering if a curious phenomenon that I have seen is related to the infamous TS-2000 SO-50 birdie. I thought I would see if I could make a contact on SO-50 with my TS-2000 even knowing about the birdie. I can certainly hear others during parts of the pass. I did not hear anything so I punch up the arming tone, and oddly, I could hear both the tone (120-something?) and my voice totally clearly on the downlink frequency. I seriously doubt that I was getting into the satellite at that point. So what is the symptom of the birdie? I thought it was just blanking out the Rx band over a certain range. Any thoughts? Thanks and 73, Burns WB1FJ

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