March 2016 - AMSAT-BB - mailman.amsat.org

Re: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna (correction)
by Robert Bruninga 16 Mar '16

16 Mar '16

Although my comments are true, I had not looked at the "updated" web page: http://wb5rmg.somenet.net/k5oe/Eggbeater_2.html It appears he addressed all those issues and has an eggbeater design that does address those same issues. If that works, then that is the same thing I was talking about and seems to be a good approach. I'd love to see a cookoff between the two antennas. Bob... -----Original Message----- From: Robert Bruninga [mailto:[email protected]] Sent: Tuesday, March 15, 2016 1:32 PM Subject: RE: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna My 2 cents: The problem with Eggbeaters is that their design goal (omni coverage) sounds good but also means, by definition, equally poor in all directions. There is no such thing as "gain" for an omni. The closer its gain approaches 3D omni, in all directions, then the closer its gain approaches 0 dBi. Of course, placed over a ground plane, then they can achieve 3 dBi... Now, on the other hand, satellites are nowhere near omni located. They are 10dB or more farther away on the horizon than when they are overhead. So you don't need as much gain at all overhead as you need on the horizon. Further, satellites spend more than 70% of all pass times below 22 degrees! (where they are weak) and only 5% of their time above 45 degrees where they are 10 dB stronger. The last thing then that you need for "omni" coverage for a non-pointing antenna, then, is gain that is UP (where the satellite is 10 times stronger). See the scale drawings of a LEO pass: http://aprs.org/LEO-tracking.html BUT on the other hand, most cubesats simply do not have the power to close the link to an OMNI antenna when it is on the horizon. It just cannot happen due to the distance and the omni only being at best 3 dB gain. So the BEST "omni" in my opinion is a 19" whip over a large metal ground plane. Not only does it provide 5 dBi gain above 15 degrees or so on VHF, it also provides almost 7 dBi gain on UHF above about 30 degrees where it acts as a 3/4 wave vertical.. Yes, it has a null overhead, but the satellite is 10 times stronger then. And the satleilte is only in that null less than 2% of all pass times. So the 19" vertical gives good gain from above the horizon in all directions and sacrificaes some gain overhead wehre it is not needed. And no omni antenna is going to hear these weak satellites all the way down on the horizon where they are 10 times weaker. And a 19.25" vertical piece of wire over some chicken wire is pretty easy to construct, AND it does not need to be on the top of a tower, since it cannot hear to the horizon anyway. So jjust put it where it can see most of the sky above abouit 15 degrees and you will hear about all you can on an Omni. And it is not bad... The value of a true circular hemispherical antenna is only when the satelile is strong (ISS) and it can be heard even on the horizon. Then the circula hemispherical antenna has the advantage of fewer nulls in its pattern. But you give up gain where it is most needed to get that. And a low noise preamp is essential... Just my 2 cents... Bob, WB4APR -----Original Message----- From: AMSAT-BB [mailto:[email protected]] On Behalf Of Paul Stoetzer Sent: Tuesday, March 15, 2016 1:12 PM To: jim(a)k6ccc.org Cc: amsat-bb(a)amsat.org Subject: Re: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna Jim, The key words here are "noise floor." Omnidirectional antennas can work for satellites when you have a low noise floor and short runs of very good coax (and/or a preamp). As an example, I've listened for SO-50 a couple of times from here in Washington, DC with my Baofeng UV-3R+ and Nagoya NA-774 telescopic whip. I can hear the satellite a bit, but still quite nosily, above 45 degrees. Back in August, I was in a field in the middle of nowhere and heard it very well from 5-7 degrees above the horizon. Another example is that some people report decent telemetry success from AO-73 (when in high power mode) using nothing more than 1/4 wave whip. I've never been able to decode a single packet with that type of setup here in the city. Most people live somewhere between the two extremes I've presented here of "field in the middle of nowhere" and "apartment building in a major urban center" so your mileage may vary. Just keep in mind that in any receiving system, you are looking for an optimal signal to noise ratio. If you have no noise, you don't need much signal and omnidirectional antennas might work fine. If you have a ton of noise, you are going to need a lot of signal from the satellite, which means a beam with decent gain. 73, Paul, N8HM On Tue, Mar 15, 2016 at 12:46 PM, Jim Walls <jim(a)k6ccc.org> wrote: > I built one about a decade or so ago and was grossly underwhelmed with it. > I built it to use for a sat igate. I was able to decode maybe one or > two packets per day. Everything else was lost in the noise floor.. > Only had about 20 feet of RG-214 cable to the receiver. > > Jim - K6CCC > > > > > > ---------------------------------------- > From: "Joe" <nss(a)mwt.net> > Sent: Tuesday, March 15, 2016 9:37 AM > To: "amsat-bb@amsat org" <amsat-bb(a)amsat.org> > Subject: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna Has anyone > built this antenna, and what are your opinions? Meet all the claims > being made? > > http://wb5rmg.somenet.net/k5oe/Eggbeater_2.html > > Joe WB9SBD > -- > Sig > The Original Rolling Ball Clock > Idle Tyme > Idle-Tyme.com > http://www.idle-tyme.com > _______________________________________________ > 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

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Egg beater antenna
by Dick Illman 16 Mar '16

16 Mar '16

I have successfully used UHF and VHF Egg Beaters in my attic for years. I used a TS2000 and ARR transceiver preamps (TS2000 is pretty deaf). I had 100 feet of 9913 cable. 73 Dick Illman AH6EZ/W7

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Eggbeater
by on4cjq＠telenet.be 16 Mar '16

16 Mar '16

Hello A nice article about eggbeaters. Never build one myself yet. http://on6wg.pagesperso-orange.fr/Page%201.html 73's Jerry,ON4CJQ

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Homebrew Up-Dated Eggbeater Antenna
by Joe 16 Mar '16

16 Mar '16

Has anyone built this antenna, and what are your opinions? Meet all the claims being made? http://wb5rmg.somenet.net/k5oe/Eggbeater_2.html Joe WB9SBD -- Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com

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Trouble programming a TS-2000
by Rick Tejera 16 Mar '16

16 Mar '16

All, Cross posting from the amsat-na fb page: OK TS-2000 users, I finally have some time and decided to program the sat memories in my TS-2000. Now according to the manual you put the downlink into VFO-A and the uplink into VFO-B. Straight forward enough, problem is when I select VFO-A on the sub receiver to add it, I can't seem to make it find the 2m band. It goes from 70cm to 6m. I have no idea why it's doing this. Anyone else have this problem? Rick Tejera (K7TEJ) Saguaro Astronomy Club www.saguaroastro.org Thunderbird Radio Club www.w7tbc.org 623-572-0713 623-203-4121 (cell) SaguaroAstro(a)cox.net

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Re: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna (make 100 ohm line)
by Robert Bruninga 16 Mar '16

16 Mar '16

> Main problem seems to be the 93 ohm coax,,, But one only needs 13" of the 100 ohm line at VHF and only 4.5" at UHF so just make it. Cut a piece of RG59 say 40% longer than the right length. Strip off the outer jacket and also slide off the shield. Now cut the dialectric and center conductor to the right length. NoW, then slide on enough heatshrink or wrap the dialectric with enough electrical tape to build up the diameter of the dialectric with something to bulk up the diameter until you get the right center to outer ratio to be 100 ohms. Then slide the shield back over it, heat shrink the whole thing, and you just made yourself a piece of 100 ohm coax, or any other impedance you want. Have I ever done this? No. But it should work if you can get the expanded diameter right, and what you stuff it with has a reasonable diaelectric constant. At least it would be fun to take the challenge. Or if you are very lucky, there may be a piece of larger 50 ohm line that if you could slide out the center conductor and slide in a smaller one of the right diameter you could do it that way too. Hey, it’s a hobby... of course you would need a dipper or antenna analyzer to test it. Just put a 200 ohm resistor on the end and see how close you get to 1.0 SWR. The more I think about it the more likely it would be to find some cheap RG59 that the center conductor slides out of. It has happened to me enough times when I try to strip some cheap junk that the center conductor pulls right out of short coax pieces... Then just stuff back in a smaller center conductor. Maybe? Bob, WB4APR -----Original Message----- From: AMSAT-BB [mailto:[email protected]] On Behalf Of Douglas Phelps Sent: Tuesday, March 15, 2016 8:33 PM To: Joe; amsat-bb(a)amsat.org Subject: Re: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna (correction) This may not be a lot of help but you want RG-62. You can buy it by the foot but I do not have any, I used mine up working on the WRAPS rotor. RG-62 uses an RG-59 connector. DougK9DLP From: Joe <nss(a)mwt.net> To: amsat-bb(a)amsat.org Sent: Tuesday, March 15, 2016 3:45 PM Subject: Re: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna (correction) Main problem seems to be the 93 ohm coax,,, anyone got a short piece? Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 3/15/2016 3:11 PM, Robert Bruninga wrote: > Although my comments are true, I had not looked at the "updated" web page: > http://wb5rmg.somenet.net/k5oe/Eggbeater_2.html > > It appears he addressed all those issues and has an eggbeater design > that does address those same issues. If that works, then that is the > same thing I was talking about and seems to be a good approach. I'd > love to see a cookoff between the two antennas. Bob... > > -----Original Message----- > From: Robert Bruninga [mailto:[email protected]] > Sent: Tuesday, March 15, 2016 1:32 PM > Subject: RE: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna > > My 2 cents: > > The problem with Eggbeaters is that their design goal (omni coverage) > sounds good but also means, by definition, equally poor in all directions. > There is no such thing as "gain" for an omni. The closer its gain > approaches 3D omni, in all directions, then the closer its gain > approaches > 0 dBi. Of course, placed over a ground plane, then they can achieve 3 > dBi... > > Now, on the other hand, satellites are nowhere near omni located. > They are 10dB or more farther away on the horizon than when they are > overhead. > So you don't need as much gain at all overhead as you need on the horizon. > > Further, satellites spend more than 70% of all pass times below 22 > degrees! > (where they are weak) and only 5% of their time above 45 degrees where > they are 10 dB stronger. > > The last thing then that you need for "omni" coverage for a > non-pointing antenna, then, is gain that is UP (where the satellite is > 10 times stronger). > > See the scale drawings of a LEO pass: > http://aprs.org/LEO-tracking.html > > BUT on the other hand, most cubesats simply do not have the power to > close the link to an OMNI antenna when it is on the horizon. It just > cannot happen due to the distance and the omni only being at best 3 dB > gain. > > So the BEST "omni" in my opinion is a 19" whip over a large metal > ground plane. Not only does it provide 5 dBi gain above 15 degrees or > so on VHF, it also provides almost 7 dBi gain on UHF above about 30 > degrees where it acts as a 3/4 wave vertical.. > > Yes, it has a null overhead, but the satellite is 10 times stronger then. > And the satleilte is only in that null less than 2% of all pass times. > > So the 19" vertical gives good gain from above the horizon in all > directions and sacrificaes some gain overhead wehre it is not needed. > And no omni antenna is going to hear these weak satellites all the > way down on the horizon where they are 10 times weaker. > > And a 19.25" vertical piece of wire over some chicken wire is pretty > easy to construct, AND it does not need to be on the top of a tower, > since it cannot hear to the horizon anyway. So jjust put it where it > can see most of the sky above abouit 15 degrees and you will hear about > all you can on an Omni. > And it is not bad... > > The value of a true circular hemispherical antenna is only when the > satelile is strong (ISS) and it can be heard even on the horizon. > Then the circula hemispherical antenna has the advantage of fewer > nulls in its pattern. But you give up gain where it is most needed to get > that. > > And a low noise preamp is essential... > > Just my 2 cents... > Bob, WB4APR > > -----Original Message----- > From: AMSAT-BB [mailto:[email protected]] On Behalf Of Paul > Stoetzer > Sent: Tuesday, March 15, 2016 1:12 PM > To: jim(a)k6ccc.org > Cc: amsat-bb(a)amsat.org > Subject: Re: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna > > Jim, > > The key words here are "noise floor." Omnidirectional antennas can > work for satellites when you have a low noise floor and short runs of > very good coax (and/or a preamp). > > As an example, I've listened for SO-50 a couple of times from here in > Washington, DC with my Baofeng UV-3R+ and Nagoya NA-774 telescopic > whip. I can hear the satellite a bit, but still quite nosily, above 45 > degrees. > Back in August, I was in a field in the middle of nowhere and heard it > very well from 5-7 degrees above the horizon. > > Another example is that some people report decent telemetry success > from > AO-73 (when in high power mode) using nothing more than 1/4 wave whip. > I've never been able to decode a single packet with that type of setup > here in the city. > > Most people live somewhere between the two extremes I've presented > here of "field in the middle of nowhere" and "apartment building in a > major urban center" so your mileage may vary. Just keep in mind that > in any receiving system, you are looking for an optimal signal to > noise ratio. If you have no noise, you don't need much signal and > omnidirectional antennas might work fine. If you have a ton of noise, > you are going to need a lot of signal from the satellite, which means a > beam with decent gain. > > 73, > > Paul, N8HM > > On Tue, Mar 15, 2016 at 12:46 PM, Jim Walls <jim(a)k6ccc.org> wrote: >> I built one about a decade or so ago and was grossly underwhelmed >> with > it. >> I built it to use for a sat igate. I was able to decode maybe one or >> two packets per day. Everything else was lost in the noise floor.. >> Only had about 20 feet of RG-214 cable to the receiver. >> >> Jim - K6CCC >> >> >> >> >> >> ---------------------------------------- >> From: "Joe" <nss(a)mwt.net> >> Sent: Tuesday, March 15, 2016 9:37 AM >> To: "amsat-bb@amsat org" <amsat-bb(a)amsat.org> >> Subject: [amsat-bb] Homebrew Up-Dated Eggbeater Antenna Has anyone >>built this antenna, and what are your opinions? Meet all the claims >>being made? >> >> http://wb5rmg.somenet.net/k5oe/Eggbeater_2.html >> >> Joe WB9SBD >> -- >> Sig >> The Original Rolling Ball Clock >> Idle Tyme >> Idle-Tyme.com >> http://www.idle-tyme.com >> _______________________________________________ >> 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 > _______________________________________________ > 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

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Ceuta & Melilla and Gibraltar this summer
by Felix Paez EA4GQS 15 Mar '16

15 Mar '16

Hi everybody, I want to share with you all that this August I will try to activate Gibraltar (ZB) the EA9 zone from Ceuta on portable on any avaliable FM satellite in the time I will be there. Also I will try to activate all the no frequent grids from Madrid to the South of Spain in my way. I don't know how many passes and which satellites I will be able to use until I know the exact date of the trip but I will try to plan it so I can work at least one pass from Gibraltar and another one from Ceuta. I will share the details on June or July in this list. All QSOs will be confirmed by LOTW. I am really sorry that I don't have at the moment any SSB portable transceiver. I know it would be great for our not European friends. We will see if something can be done about it these months.. Thanks Félix - EA4GQS

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Video of my reception of Booker T. Washington Miami ARISS contact
by John Brier 15 Mar '16

15 Mar '16

https://youtu.be/Bs2hqQlUaLA This was an excellent reception for me in Raleigh, North Carolina with just a 15 degree pass. My pass started about one minute before Miami's pass started and ended about two minutes before Miami's pass ended. I picked up Tim Peake establishing the contact full quieting (no noise) with a signal strength of S7 to S9 on the S-meter (where 9 is the highest) and held that quality and signal strength through the answer to question 15. I heard nothing after that but my pass was about over by then. The school reported they got through question 16 but couldn't get more due to buildings blocking the signal, so I got all but one of the answers on a relatively low height/elevation pass of only 15 degrees. Not bad. My satellite setup: http://imgur.com/a/Ez7dL This is my reception of the International Space Station talking to Booker T. Washington Senior High in Miami, Florida on Monday March 14th, 2016 at 15:48 UTC. The school was using callsign W4SVI and British astronaut Tim Peake was using callsign NA1SS. My callsign is KG4AKV. Time Satellite Azm Elv Mag Range S.Azm S.Elv -------------------------------------------------------------------------- Miami 2016-03-14 11:47:29 ISS 310.0 0.0 3.2 2383 136.4 51.3 2016-03-14 11:52:53 ISS 231.1 41.7 1.0 590 138.2 52.1 2016-03-14 11:58:16 ISS 151.2 0.0 5.7 2369 140.0 52.8 Raleigh 2016-03-14 11:46:36 ISS 293.5 0.0 3.1 2385 144.1 45.7 2016-03-14 11:48:10 ISS 283.1 5.0 2.7 1842 144.6 45.9 2016-03-14 11:51:25 ISS 232.1 14.8 2.3 1204 145.6 46.3 2016-03-14 11:54:39 ISS 180.9 5.1 3.9 1828 146.7 46.7 2016-03-14 11:56:13 ISS 170.2 0.0 4.9 2368 147.2 46.8 73, John KG4AKV

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Upcoming ARISS Contact Schedule as of 2016-03-15 05:30 UTC
by AJ9N＠aol.com 15 Mar '16

15 Mar '16

Upcoming ARISS Contact Schedule as of 2016-03-15 05:30 UTC Quick list of scheduled contacts and events: Booker T. Washington Senior High, Miami, Florida, direct via W4SVI The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Timothy Peake KG5BVI Contact was successful: Mon 2016-03-14 15:48:48 UTC 52 deg (***) Walter Jackson Elementary, Decatur, Alabama, direct via N8DEU The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Timothy Peake KG5BVI Contact is a go for: Fri 2016-03-18 13:53:49 UTC 69 deg **************************************************************************** ** The next window to submit a proposal for an upcoming contact is now open. The window is open from 2016-02-15 to 2016-04-15 and would be for contacts between 2017-01-01 and 2017-06-30. Check out the ARISS website http://www.ariss.org/ or the ARRL website http://www.arrl.org/hosting-an-ariss-contact for full details. **************************************************************************** ** 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. ************************************************************************* ****** All ARISS contacts are made via the Ericsson 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: Gaston ON4WF with 121 Satoshi 7M3TJZ with 116 Francesco IKØWGF with 116 **************************************************************************** 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 8061 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2016-03-15 05:30 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 Total number of ARISS ISS to earth school events is 1036. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1001. (***) 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, Rhode Island, 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 2016-03-15 05:30 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. 46 on orbit Tim Kopra KE5UDN Timothy Peake KG5BVI Yuri Malenchenko RK3DUP **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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4A1DX on SAT
by David Maciel (XE3DX) 15 Mar '16

15 Mar '16

*To celebrate 11 years of existence Grupo DXXE, Mexico’s top contest and DX radio club, will operate the special event callsign 4A1DX between March to June 14th 2016.* *This will be an SAT. now only FM (**SO-50, AO-85 y Lilacsat-2)* *The QSL manager is Dick N7RO. Don´t send your QSL cards to the Mexican bureau since we will not have QSLs to answer. Make sure you bureau QSL card is clear marked via N7RO.* *We will be uploading the log to LoTW at the end of our operation (June 2016), and all the Log will be on CLUBLOG too.* *QSOs with this station are good for the DXXE Award. You don’t need to physically send the QSL cards to obtain it.* *Operators via SAT are:* *Ismael XE1AYDavid XE3DX* *DK79, **EK36, **EK08, **EK09.* David Maciel XE3DX *http://www.qsl.net/xe3dx/ <http://www.qsl.net/xe3dx/>* *david.xe3dx(a)gmail.com <david.xe3dx(a)gmail.com>*

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