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

sat 32 problem
by James Brown 31 Aug '18

31 Aug '18

recently upgraded to sat32 ver 12.8D The maps do not center on the observer. It appears that the maps follow the active satellite. under setup-options the center map is selected on observer! no effect even after save and restart several times. Any ideas? ThanksJim KI6WJ

3 2

AO-92 1.2 GHz
by Bob Cutter 31 Aug '18

31 Aug '18

Were do I find a schedule of when the Bird is on 1.2? 72, Bob KI0G Sent from Yahoo Mail for iPhone

2 1

Re: [amsat-bb] Cat control cable for FT736R
by Steve Nordahl 31 Aug '18

31 Aug '18

Alex, I use this with my 736 and SatPC32. You need a cable from this company. FT-Cable-3-USB http://www.xggcomms.com/userimages/Yaesu-Interface-Shop(2066641).htm Steve NS3L

1 1

Radio selection: FT-818 vs IC-7100
by Daniel Holmes 30 Aug '18

30 Aug '18

Hi everyone, time for another “what radio is right for me” thread. I haven’t seen one compare these two: IC-7100 and an FT-818. Primarily looking at satellite work, but I’m also interested in HF digital (primarily FT8). I’ve already got an Arrow antenna, and a potatoFeng. Right now I use an SDR to receive, and CubicSDR works pretty well for that-I’ve gotten adept at moving the tuning while using the Armstrong method of Alt/Az locating. I haven’t tried transmitting, just because my HT has pretty poor transmit characteristics. So I feel I’m pretty good on the full duplex issue. Cost isn’t an issue, with the current rebate on the IC-7100 they are close enough to not matter. And the accessories needed will balance out (for the Icom, tuner and power supply, for the Yaesu, tuner, and signalink-I have an adequate power supply). For the short term (6 months or so) most of my satellite operating is going to be from a card table in the back yard, or portable. HF will be a little more permanent, so each radio will have to be disconnected, moved, and setup again for satellite stuff. That’s the paralysis—the FT will probably be easier to move, but the IC is more sensitive. So I think my criteria is coming down to ergonomics of operating vs sensitivity and HF power. I use MacDoppler for tracking, and will probably rely on it for downlink shift on the radios, with my SDR as backup. Oh, I already do QRP CW on 20, so I’m not too nervous about power of the 818. Thanks, Dan Sent from my iPad. Fewer misspellings, more errors.

3 3

Ruby Payne-Scott - a must read into the history of radio-astronomy.
by Arthur Feller, W4ART 30 Aug '18

30 Aug '18

https://www.nytimes.com/2018/08/29/obituaries/ruby-payne-scott-overlooked.h… <https://www.nytimes.com/2018/08/29/obituaries/ruby-payne-scott-overlooked.h…> To thrive in life, you need three bones: a wish bone, a back bone, and a funny bone. - Reba McEntire http://afeller.us <http://afeller.us/>

1 0

For sale: IC-821H
by Matthew Stevens 30 Aug '18

30 Aug '18

I’ve got my IC-821H up for sale, including heil and non-heil mic adapters, fused power cord with power poles, the original hand mic, pelican-style case, original plastic wrapped manual and schematics, and 10’/11’ UHV/VHF ABR LNR240UF cables for an Arrow. I’m asking $700 plus whatever shipping winds up. You can view pics of the rig via the link below https://twitter.com/matt_nj4y/status/1035199489605332993 73, - Matthew nj4y Sent from my iPhone

1 0

Wanted: Andrew hardline
by Norm n3ykf 30 Aug '18

30 Aug '18

The larger the better. 1 5/8" preferred, but any larger cable will be considered. Must be within driving distance of upstate NY. Norm n3ykf

1 0

Thoughts on AZ/EL rotors
by Keith E. Brandt, WD9GET 30 Aug '18

30 Aug '18

I've been using the sats with my Arrow and HT and am considering the jump to a more robust station. I'm pretty well set with my TS-2000 and I can figure out antennas, but the interwebs are a major tangle of articles about tracking systems, and I'm having problems sorting out the info overload. I'm in south Texas and planning a permanent installation, so weather hardiness is necessary. This seems to me to rule out SatNOGs and Portable Rotation systems. The main alternative I'm seeing is the Yaesu G-5500 (Alfa Spid is more than I'm wanting to spend). Where things get really murky is the computer interface. The GS232A is a bit on the expensive side. There are many alternatives, but many are no longer in production or are technically outdated. What I'm looking for from the group is recommendations for Az-El rotor systems and computer interfaces (I'm using SATPC32 and HRD for the tracking software). Thanks & 73, Keith WD9GET -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * Keith E. Brandt, WD9GET wd9get(a)amsat.org <wd9get(a)amsat.org>* 'Christianity and science are opposed…but only in the same sense as my thumb and forefinger are opposed - and between them I can grasp everything.' —Sir William Bragg (Nobel Prize for Physics- 1915) *This message transmitted with 100% recycled electrons *xb*

9 8

Upcoming ARISS Contact Schedule as of 2018-08-30 04:00 UTC
by aj9n＠aol.com 30 Aug '18

30 Aug '18

Upcoming ARISS Contact Schedule as of 2018-08-30 04:00 UTC Quick list of scheduled contacts and events: Study Hall, Lucknow, Uttar Pradesh, India, telebridge via K6DUE The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Serena Aunon-Chancellor KG5TMT Contact postponed per school request. (***) Mendez Fundamental Intermediate School, Santa Ana, CA, direct via AA6TB The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Ricky Arnold KE5DAU Contact is a go for: Thu 2018-09-06 16:49:52 UTC 81 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: Satoshi 7M3TJZ with 133 Francesco IKØWGF with 132 Gaston ON4WF with 123 Sergey RV3DR with 107 **************************************************************************** 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 2018-08-30 04:00 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 1252. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1199. 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: 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 2018-08-29 03:00 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. 55 on orbit Drew Feustel Oleg Artemyev Ricky Arnold KE5DAU Exp. 56 on orbit Serena Aunon-Chancellor KG5TMT Alexander Gerst KF5ONO Sergei Propopev **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

1 0

Re: [amsat-bb] Thoughts on AZ/EL rotors
by Daniel Holmes 30 Aug '18

30 Aug '18

Cool. My other scope mounts are equatorials, so I’d rather not go through a meridian flip. It’s the guts of an old DS Meade, runs on 12V, and tracks I think well enough for radio. Next up is an Arduino wireless based unit to be able to rotate the Arrow circularly. But that shouldn’t be too hard-I’m having more trouble figuring out Fusion 360 to design the brackets. Thanks for the advice. I’ll keep everyone posted with my progress. Dan N7NKR Sent from my iPad. Fewer misspellings, more errors. > On Aug 29, 2018, at 8:27 PM, Richard Tejera <Saguaroastro(a)cox.net> wrote: > > Dan, it should work, I bought a used one (not ready to cannibalize my good one) on eBay. I've got to fix the AZ bearing as it is stuck and doesn't rotate without getting an error. > > I've tracked the ISS visually with it and it does track well. > > Adding or updating the elements is pretty easy using the hand paddle. Essentially like adding a comet. > > Please keep me posted on your progress, I'd be interested in comparing notes. > > Rick Tejera K7TEJ > Saguaro Astronomy Club > www.SaguaroAstro.org > Thunderbird Amateur Radio Club > www.w7tbc.org > > On August 29, 2018, at 18:17, Daniel Holmes <danielh(a)holmesonics.com> wrote: > > I’ve got an old cheap Meade auto star telescope system. I’m planning on attaching my Arrow to it with some 3d printed brackets (no dovetail). I can control it via computer, and I’ve verified it can track fast enough. It doesn’t look like it’ll handle anything heavier than the standard Arrow though—I’d have to beef up the motor gearboxes. > > Has anyone tried adapting an AZ/EL telescope drive system? > > Dan > > Sent from my iPad. Fewer misspellings, more errors. > >> On Aug 1, 2018, at 7:40 PM, Mike Sprenger <mikesprenger(a)gmail.com> wrote: >> >> Keith >> >> I’ve built several of the arduinos and loaded the K3NG code (excellent stuff) to drive 2nd hand Yaesu 5400s which all works great w/SATPC32 >> >> Mail me direct if I can help. >> >> Thanks, >> Mike >> W4UOO >> >> Sent from my iPhone >> >>> On Aug 1, 2018, at 1:56 PM, Corey Shields <cshields(a)gmail.com> wrote: >>> >>> If you're comfortable with flashing an arduino and soldering a shield, >>> there is an open design for a G-5500 controller at the url below. It >>> works with the K3NG rotator controller arduino code (links are in that >>> page). A LOT cheaper than the GS232A! >>> >>> https://gitlab.com/librespacefoundation/satnogs/g5500-ardushield/tree/master >>> >>> Cheers, >>> -Corey KB9JHU >>> >>> On Wed, Aug 1, 2018 at 1:47 PM, Keith E. Brandt, WD9GET >>> <wd9get(a)amsat.org> wrote: >>>> I've been using the sats with my Arrow and HT and am considering the jump >>>> to a more robust station. I'm pretty well set with my TS-2000 and I can >>>> figure out antennas, but the interwebs are a major tangle of articles about >>>> tracking systems, and I'm having problems sorting out the info overload. >>>> >>>> I'm in south Texas and planning a permanent installation, so weather >>>> hardiness is necessary. This seems to me to rule out SatNOGs and Portable >>>> Rotation systems. The main alternative I'm seeing is the Yaesu G-5500 (Alfa >>>> Spid is more than I'm wanting to spend). Where things get really murky is >>>> the computer interface. The GS232A is a bit on the expensive side. There >>>> are many alternatives, but many are no longer in production or are >>>> technically outdated. >>>> >>>> What I'm looking for from the group is recommendations for Az-El rotor >>>> systems and computer interfaces (I'm using SATPC32 and HRD for the tracking >>>> software). >>>> >>>> Thanks & 73, >>>> Keith WD9GET >>>> >>>> -- >>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >>>> >>>> * Keith E. Brandt, WD9GET wd9get(a)amsat.org <wd9get(a)amsat.org>* >>>> >>>> 'Christianity and science are opposed…but only in the same sense as my >>>> thumb and forefinger are opposed - and between them I can grasp >>>> everything.' —Sir William Bragg (Nobel Prize for Physics- 1915) >>>> >>>> *This message transmitted with 100% recycled electrons >>>> >>>> *xb* >>>> _______________________________________________ >>>> 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 >>> >>> >>> >>> -- >>> Corey Shields >>> _______________________________________________ >>> 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 > > _______________________________________________ > 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

1 0