April 2017 - AMSAT-BB - mailman.amsat.org

1956Z AO-7
by Gabriel Zeifman 30 Apr '17

30 Apr '17

Stations worked from the previous AO-7 pass on the HP83/84 line by TF/NJ7H: KO4MA, K8YSE, W0JW, N8HM, AA9LC, AC0RA, NJ1H, N1AIA, WA4NVM. K4FEG, VE4AMU, KB1RVT, KG5CCI, WN9Q, K4YYL No insurance contacts, please. This upcoming pass is the only chance for western stations to get this rare DXCC and grids. 73, Gabe NJ7H

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Heard the ariss contact with 14th Elementary School Katerini, Greece
by Koos van den Hout 30 Apr '17

30 Apr '17

Yesterday was an 'open day' at our local radioclub. The radioclub is housed in a scouting building and several scouts came to see what we were doing, soldered a very simple electronic light and showed some real interest in radio. I noticed the ARISS contact with the school in Greece was during this open day so I told the club I would demonstrate this and brought the arrow antenna and a simple handheld radio to show the other amateurs and the visitors that it is possible to hear an astronaut with simple means. The announcement that we were going to hear an astronaut was received with great joy and everybody who was there at the time came out to hear it. After a few (tense) minutes the voice of the astronaut came through and we al heard clear audio. Even some of the radio amateurs were surprised how easy it is to receive signals from space. For as far as I know nobody there understood greek so it was just the idea of hearing an actual astronaut talk that held a crowd. Koos PE4KH -- Koos van den Hout Homepage: http://idefix.net/ PGP keyid 0x5BA9368BE6F334E4 Webprojects: Camp Wireless http://www.camp-wireless.org/ The Virtual Bookcase http://www.virtualbookcase.com/

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ANS-120 AMSAT News Service Weekly Bulletins
by Joe Spier 30 Apr '17

30 Apr '17

AMSAT NEWS SERVICE ANS-120 The AMSAT News Service bulletins are a free, weekly news and infor- mation service of AMSAT North America, The Radio Amateur Satellite Corporation. ANS publishes news related to Amateur Radio in Space including reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and communicating through analog and digital Amateur Radio satellites. The news feed on http://www.amsat.org publishes news of Amateur Radio in Space as soon as our volunteers can post it. Please send any amateur satellite news or reports to: ans-editor at amsat.org. In this edition: * RadFxSat(Fox-1B) Passes Mission Readiness Review * AMSAT at the Dayton Hamvention -- Call for volunteers * HamRadioNow: Look! Up in the Sky! * AMSAT-UK test ESEO payload command uplink * ARSATC Satellite Special Events Station From Brazil * ISS Commander Peggy Whitson, ex-KC5ZTD, Sets New US Record for Time in Space * AMSAT Events * ARISS News * Satellite Shorts from All Over SB SAT @ AMSAT $ANS-120.01 ANS-120 AMSAT News Service Weekly Bulletins AMSAT News Service Bulletin 120.01 >From AMSAT HQ KENSINGTON, MD. DATE April 30, 2017 To All RADIO AMATEURS BID: $ANS-120.01 --------------------------------------------------------------------- RadFxSat(Fox-1B) Passes Mission Readiness Review The RadFxSat (Fox-1B) Mission Readiness Review was held Saturday morning, April 29th, at the Cal Poly campus in front of a board representing Tyvak, Cal Poly, and NASA. The purpose of the review is to verify that all requirements are met for a safe and successful launch and deployment. I presented 81 powerpoint slides covering all of the ICD (Interface Control Document) requirements, mission, operations, and deorbit. At the conclusion of the presentation including questions answers, the panel unanimously approved RadFxSat as ready for flight. The next milestone will be integration into the P-POD with launch scheduled NET (No Earlier than) September 23, 2017 aboard a Delta II at Vandenberg AFB. [ANS thanks Jerry Buxton, N0JY, AMSAT Vice-President Engineering for the above information] --------------------------------------------------------------------- AMSAT at the Dayton Hamvention -- Call for volunteers The Dayton Hamvention is less than three weeks away! It is time to be creating your shopping list and making your travel plans. Last year, we had 45 people assist with the AMSAT booth at Dayton. We've had a good response so far to our call for volunteers, but we could really use another 10-15 people. The 2017 Hamvention is May 19-21 in Xenia, Ohio. Would you consider helping AMSAT at the Hamvention this year? The interaction with AMSAT members, satellite operators, designers, and builders makes the whole experience a lot of fun. Meet or renew acquaintances, exchange operating tips, and find out what antennas, software and equipment other AMSAT members use. We currently expect most of the AMSAT senior officers and board members to be there too. If you're an experienced operator, great! We can use you and your experience. If you've never operated a satellite before, but want to learn more, that's OK. We can use your help too. Whether you're available for only a couple of hours or if you can spend the entire weekend with us, your help would be greatly appreciated. Please send an e-mail to Steve, n9ip(a)amsat.org if you can help. Thank you! [ANS thanks Steve Belter, N9IP, Hamvention 2017 Team Leader for the above information] --------------------------------------------------------------------- HamRadioNow: Look! Up in the Sky! The bulk of this episode is an on-location interview with two Raleigh NC area hams who gave a couple of live demonstrations of operating through satellites at the Raleigh Hamfest, April 15, 2017. There’s some banter between hosts David Goldenberg W0DHG and Gary Pearce KN4AQ back in the studio. And toward the end Gary announces a Viewer Challenge that we’ll detail down below. The satellite hams are John Brier KG4AKV and Tucker McGuire W4FS. At 18 years old, Tucker is a relatively new ham who first started operating satellites last summer, and quickly jumped into the deep end. John’s been around longer, but ham radio satellites and space operation captured his focus, too. He produces videos about it on his YouTube channel, Space Comms. Gary talked to John and Tucker after they completed their second demo, and he edited a little of each demo into the interview. There’s video of all of both demonstrations on YouTube. John shot himself operating through ‘Saudi-Sat’ SO-50, a “Mode J” FM crossband repeater (145.850 MHz uplink and 436.795 MHz downlink). John used three cameras (including a GoPro on a headband for a unique view). Gary edited the video and put it on the HamRadioNow YouTube channel as an extra bit if video. Gary added two more cameras to the mix to shoot Tucker operating through FO-29, a Japanese satellite that uses a 100 kHz wide ‘linear transponder’ for mostly SSB and CW (and NO FM, please) between two meters and 70 cm. There’s a few minutes of that demo in this episode, and the whole thing is on John’s Space Comms channel. Watch HRN 316: Look! Up in the Sky! Ham Radio Now https://www.youtube.com/watch?v=sKZ73sRdAAw Space Comms http://youtube.com/SpaceComms1 KG4AKV’s SO-50 FM operation https://www.youtube.com/watch?v=7dhJsfh6fYA W4FS’s FO-29 SSB operation https://www.youtube.com/watch?v=kEvsKN9ZSyw John KG4AKV https://twitter.com/johnbrier Tucker W4FS https://twitter.com/Whiskey4FoSho [ANS thanks AMSAT-UK and HamRadio Now for the above information] --------------------------------------------------------------------- AMSAT-UK test ESEO payload command uplink AMSAT-UK are providing an amateur radio 1260/145 MHz FM transponder and a 145 MHz BPSK telemetry beacon for the European Student Earth Orbiter (ESEO) satellite. Over the weekend of April 22-23, 2017, AMSAT-UK members met at the Surrey Space Center to conduct some final testing of the command uplink on the Engineering Model of their payload which will launch on the European Space Agency ESEO mission. The payload, which will transmit 1k2 and 4k8 BPSK telemetry on 145.895 MHz, was set up in the Arthur C Clarke building, with the AMSAT-UK team sending commands on L-band (1260 MHz) from some distance away in the university grounds. A large string of attenuators simulated the path loss to low Earth orbit, while the VHF telemetry confirmed the level of signal received at the ‘spacecraft antenna’ and that the commands had been executed correctly. With the lab and range testing declared a success, work now begins on constructing the Flight Model hardware. This is due for delivery by the middle of the summer so that it can be integrated into the 50 kg microsat. ESEO is expected to be launched late this year or in the first quarter of 2018. ESEO satellite https://amsat-uk.org/satellites/communications/eseo/ [ANS thanks AMSAT-UK for the above information] --------------------------------------------------------------------- ARSATC Satellite Special Events Station From Brazil In celebration of its two-year anniversary, the ARSATC group will activate the ZV8AR, ZZ3SA, and ZZ9TC stations. Radio amateurs from Brazil and other countries who confirm contact with ARSATC special stations, in which the suffixes of each special call will form the word ARSATC, will be entitled to a commemorative certificate alluding to the event. Between May 1 and 30, 2017, the special calls will be activated on the SO-50, AO-85, FO-29, AO-73, AO-7 and Lapan -02 satellites. The confirmation will be through the Eqsl, Lotw or QRZ and sent to the email: qsl(a)arsatc.org Prepare your antennas for good contacts. http://arsatc.org/ (in Portuguese, use google translate) [ANS thanks Valdir Lima and arsatc.org for the above information] --------------------------------------------------------------------- ISS Commander Peggy Whitson, ex-KC5ZTD, Sets New US Record for Time in Space Current International Space Station (ISS) Commander Peggy Whitson, ex-KC5ZTD, this week broke the record for cumulative time spent in space by a US astronaut. President Donald Trump -- with daughter Ivanka Trump and astronaut Kate Rubins, KG5FYJ, joining him in the Oval Office -- called Whitson on April 24 to congratulate her on her accomplishment. With Whitson for the call on board the ISS was astronaut Jack Fischer, KG5FYH, who arrived on April 20 for his first mission aboard ISS. "Peggy is a phenomenal role model for young women, and all Americans, who are exploring or participating in STEM education programs and careers," President Trump said. "When I signed the INSPIRE Women Act in February, I did so to ensure more women have access to STEM education and careers, and to ensure America continues to benefit from the contributions of trailblazers like Peggy." Whitson tweeted back, "Thank you, Mr. President, for the great opportunity to highlight the research we are doing up here aboard the space station and beyond!" Last November, Whitson, 57, launched to the ISS on her current mission, with 377 days in space already under her belt, and broke the 534 cumulative-day record in space held by Jeff Williams, KD5TVQ. Whitson became the first woman to command the space station in 2008, and on April 9, she became the first woman to command it twice. She also holds the record for most spacewalks by a female astronaut. "This is an inspirational record Peggy is setting today, and she would be the first to tell you this is a record that's absolutely made to be broken as we advance our knowledge and existence as both Americans and humans," said NASA acting Administrator Robert Lightfoot. This is Whitson's third long-duration stay on board the space station, and her mission was recently extended for another 3 months. Instead of returning to Earth in June as originally planned, Whitson will remain on the ISS until September, returning home with Fischer and Russian cosmonaut Fyodor Yurchikhin, RN3FI. Whitson first served aboard the ISS in 2002 as part of the Expedition 5 crew, was the Expedition 16 commander some 5 years later, and has conducted numerous Amateur Radio on the International Space Station (ARISS) contacts with students on Earth. Whitson has since let her Amateur Radio license lapse. [ANS thanks the ARRL and NASA for the above information] --------------------------------------------------------------------- AMSAT Events Information about AMSAT activities at other important events around the country. Examples of these events are radio club meetings where AMSAT Area Coordinators give presentations, demonstrations of working amateur satellites, and hamfests with an AMSAT presence (a table with AMSAT literature and merchandise, sometimes also with presentations, forums, and/or demonstrations). *Saturday, 6 May 2017 – Cochise Amateur Radio Association hamfest in Sierra Vista AZ *Saturday, 6 May 2017 – Matanuska Amateur Radio Association hamfest in Wasilla AK *19-21 May 2017, HamVention in the Greene County Fairgrounds and Expo Center, Dayton, Ohio *Friday and Saturday, 9-10 June 2017, HAM-COM in Irving TX *Saturday, 10 June 2017 – Prescott Hamfest in Prescott AZ *Tuesday, 20 June 2017 – presentation for Superstition Amateur Radio Club in Mesa AZ [ANS thanks AMSAT-NA for the above information] --------------------------------------------------------------------- ARISS News Successful Contacts * A direct contact via SX2ISS with 14th Elementary School Katerini, Greece The ISS callsign was scheduled to be RSØISS The scheduled astronaut wais Fyodor Yurchikhin RN3FI Contact was successful: Sat 2017-04-29 12:02:10 UTC 69 deg * A direct contact with Orel, Russia The ISS callsign was scheduled to be RSØISS The scheduled astronaut was Oleg Novitskiy Contact was successful: Sat 2017-04-29 06:05 UTC * Lycée Hélène Boucher, Thionville, France, direct via F8KGY The ISS callsign was scheduled to be FXØISS The scheduled astronaut was Thomas Pesquet KG5FYG Contact was successful: Thu 2017-04-27 08:52:17 UTC 83 deg * A direct contact via W6SRJ with students at Brook Haven School in Sebastipol, CA, USA was successful Wed 2017-04-19 18:40:43 UTC 82 deg. Astronaut Thomas Pesquet, KG5FYG, answered 19 prepared questions for students. Video of Contact: https://www.youtube.com/watch?v=lOY45DnmT8M * A direct contact via F6KCO with students from College Roger Martin Du Gard, Bellême, France was successful Fri 2017-04-14 15:20:44 UTC Students in grades 7-10 took part in an ARISS contact with Thomas Pesquet who answered 20 questions from the physics class. An audience of 200 watched. Academic regional representatives were also present. Video of Contact (In French): https://www.youtube.com/watch?v=FuY0bE8unU8&feature=em-upload_owner ********************************************************************** 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. ********************************************************************** 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: Satoshi 7M3TJZ with 123 Gaston ON4WF with 123 Francesco IKØWGF with 119 ********************************************************************** 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 2017-04-06 07:00 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 1129. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1090. 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 2017-04-04 06:00 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_correctio… 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. 50 on orbit Peggy Whitson Thomas Pesquet KG5FYG Oleg Novitskiy Exp. 51 on orbit Fyodor Yurchikhin Jack Fisher, K2FSH ********************************************************************** Watch http://www.ariss.org/upcoming-contacts.html for information about upcoming contacts as they are scheduled. [ANS thanks ARISS and Charlie, AJ9N for the above information] --------------------------------------------------------------------- Satellite Shorts from All Over Saint Barts satellite operation AI5P, N0KV, W0ZA and WD0E plan to operate from Pointe Milou, St. Barthelemy Island (IOTA NA-146/Grid Square FK87) from October 17 - 26. Operation will be on 80-10 meters (SSB/CW/RTTY) with satellite operation by WD0E. Conditions may largely limit most activity to 20 meters and down. Operating 160 meters is being considered; however, no antenna option is yet finalized. Satellite operation will take place on several satellites. A satellite and pass schedule will be announced on the AMSAT-bb in advance. Equipment includes three Elecraft K3's and two 500 watt Elecraft amps. Antennas include a SteppIR crank IR vertical for 80-10 meters, a folding hexbeam by Folding Antennas (Germany) on 20-10 meters, LPDA's on 20 and 17 meters and verticals on 30 and 40 meters. Operation will be as continuous as conditions warrant. The Colorado operators have decided to use FJ/N0KV as their callsign while AI5P will be active as FJ/AI5P. FJ/N0KV logs will be updated to LOTW while Rick's logs (FJ/AI5P) will not since he continues to be an analog guy with an actual key and pen/paper log. Paper QSLs will be available from both N0KV and AI5P direct and via the bureau. US addressees send SASE; addressees outside the US should send SAE plus $2 for return postage. Use of Club Log is not anticipated. Further information will be published as the trip approaches. [ANS thanks Jim White, WD0E for the above information] --------------------------------------------------------------------- /EX In addition to regular membership, AMSAT offers membership in the President's Club. Members of the President's Club, as sustaining donors to AMSAT Project Funds, will be eligible to receive addi- tional 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 stu- dent rate for a maximum of 6 post-secondary years in this status. Contact Martha at the AMSAT Office for additional student membership information. 73, This week's ANS Editor, Joe Spier, K6WAO k6wao at amsat dot org

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Upcoming ARISS Contact Schedule as of 2017-04-29 23:00 UTC
by AJ9N＠aol.com 29 Apr '17

29 Apr '17

Upcoming ARISS Contact Schedule as of 2017-04-29 23:00 UTC Quick list of scheduled contacts and events: Lycée Hélène Boucher, Thionville, France, direct via F8KGY The ISS callsign is presently scheduled to be FXØISS The scheduled astronaut is Thomas Pesquet KG5FYG Contact was successful: Thu 2017-04-27 08:52:17 UTC 83 deg (***) Orel, Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Oleg Novitskiy Contact was successful: Sat 2017-04-29 06:05 UTC (***) 14th Elementary School Katerini, Greece, direct via SX2ISS The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Fyodor Yurchikhin RN3FI Contact was successful: Sat 2017-04-29 12:02:10 UTC 69 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. **************************************************************************** *** 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: Satoshi 7M3TJZ with 123 Gaston ON4WF with 123 Francesco IKØWGF with 119 **************************************************************************** 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 2017-04-29 23:00 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 1134. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1095. (***) 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 2017-04-29 23:00 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. 49 on orbit Shane Kimbrough KE5HOD Andrei Borisenko Sergey Ryzhikov Exp. 50 on orbit Peggy Whitson Thomas Pesquet KG5FYG Oleg Novitskiy **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: [amsat-bb] Yaesu FT-736R versus newer transceivers
by David G0MRF 29 Apr '17

29 Apr '17

Hi Dave. The FT736R receiver sensitivity is limited by its noise figure, which is about 4 or 5dB at best. By the time you add on a little coax loss you have a receiver which struggles to compete with modern sets. However, having said that the radio is loved by many as a simple receive (masthead) preamp powered directly from the radio can transform its sensitivity. It is still used by many for EME Contesters also like this radio but frequently replace the internal LNA and mixer with one produced by Mutek. www.ssbusa.com/mutek.html I have one here and still use it. No front end replacement, but a masthead preamp does work wonders. 73 David G0MRF Please help me out with critical comments about receiver sensitivity vis-a-vis the venerable FT-736R and latest 2-m/70-cm all-mode transceivers best suited for AMSAT work. Thanks in advance, Dave N4CVX

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Satellite transceivers
by jeffory broughton 29 Apr '17

29 Apr '17

It's tough to beat the air 910 for receiver sensitivity and noise figure. It uses Gaasfets for the rf amps on both bands.I have two of them at both my primary and secondary qth.They both check at .12 uv on uhf and .11 uv on vhf for 20 db.That is state of the art stuff.If you compare the specs on the ic 910H and the new 9100 on vhf and uhf you will find them to be identical.WB8RJY jeff broughton

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TS2000 cat cable
by ingejack＠cox.net 29 Apr '17

29 Apr '17

Thanks for all the help. I now know which cable to use for SATPC32 and a TS2000 73 JACK KC7MG

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TS2000 Cat cable
by ingejack＠cox.net 29 Apr '17

29 Apr '17

think I am in the process of purchasing a TS2000. What Cat cable do I need to run SATPC32 ?? Thanks for any help !! JACK-KC7MG

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Yaesu FT-736R versus newer transceivers
by Dave Mann 29 Apr '17

29 Apr '17

Please help me out with critical comments about receiver sensitivity vis-a-vis the venerable FT-736R and latest 2-m/70-cm all-mode transceivers best suited for AMSAT work. Thanks in advance, Dave N4CVX Sent from my iPad

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NO-84 LOTW
by Terry Fischer 29 Apr '17

29 Apr '17

Am I blind? I no longer see NO-84 on the drop down in TQSL? ---------- iPhone

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