October 2007 - AMSAT-BB - mailman.amsat.org

Re: AMSAT Store Down?
by Eric H Christensen 31 Oct '07

31 Oct '07

Don't you love how that works? Thanks Paul! 73s, Eric W4OTN >>I just tried to access the AMSAT Store but the site failed. Anyone else >having this problem? > >The domain name AMSAT-NA.COM, which was supposed to auto-renew, was allowed to >expire. >We will get it restored as soon as possible. > >73 -Paul >kb5mu(a)amsat.org

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AMSAT Store Down?
by Eric H Christensen 31 Oct '07

31 Oct '07

I just tried to access the AMSAT Store but the site failed. Anyone else having this problem? 73s, Eric W4OTN

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Re: Phase 4
by sco＠sco-inc.com 31 Oct '07

31 Oct '07

Are you kidding? Eagle costs millions for us to launch P4 lite is FREE? Phase 4 will have 400 watts of power given to us for FREE for 15 years. Phase 4 will have engine and fuel and ground control station keeping in a geo sat position for FREE for 15 years. All we need to do is build the transponder and enjoy the free ride ... and not to even go begging to find a ride. Phase 4 to me should have absolute priority over Eagle, at least for the first P4 (I assume there may be more in the future?). Les W4SCO At 10:58 PM 10/30/2007, you wrote: >Hi Robert (N4HY) > >I have been reading all the info on the BB about what appears to be a Geo >syncronous amateur system supported by a commercial bird. >Obviously you and others have done much work to understand this scheme >in order to develop support for it. >My problem is I do not have enough to really handle this issue as a Amsat >Coordinator and was not able to attend the symposium. >Being an uninformed Amsat Coordinator is not healthy for Amsat. > >Is a system level proposal for this new Phase 4 going to be provided with >sufficient numbers to allow membership evaluation before any impact on >the Eagle system effort is considered acceptable. >A question that needs an answer as I have already been asked. > >Will an analysis of the effects on the HEO DXCC desires of the membership >as to the effect of a stationary fixed aperture antenna pattern in Geo >versus a moving satellite location fixed aperture antenna system not in >Geo. >To include the need to use high squint angles and power levels required >on both >ends of this sort of link budget. > >Sorry I did not attend the symposium. > >Joe Murray K0VTY >Amsat # 860 >Amsat area Coordinator NE >================================= >On Tue, 30 Oct 2007 20:22:45 -0400 Robert McGwier <rwmcgwier(a)gmail.com> >writes: > > We have kept Eagle satellite alive. The lab at U. Md. ES is being > > built > > out and we are going ahead with the structure. We helped fund the > > completion of P3E with our international partners and stepped up > > our > > efforts to finish the IHU-3 for them (and us. > > > > The Eagle satellite structure build out is funded and slated for > > completion in 2008. > > > > We are really going to try to get P3E a ride on Intelsat to balance > > > > against the other offers to see what is best for AMSAT-DL and us. > > > > Stefan's analysis is correct. Any one geostationary bird can cover > > > > roughly a third of the earth. > > > > Bob > > > > > > > > Stefan Wagener wrote: > > > Yes, > > > > > > It is a great project and deserves our full support! > > > > > > Having said that we also need to realize, that depending on the > > location of > > > the satellite above the equator we might only have the Americas in > > the foot > > > print. No Europe or Africa and no Asia. Since the first > > geostationary > > > satellite with amateur radio has to provide tangible support for > > government > > > agencies (funding source) it will certainly be primarily centered > > around a > > > North American footprint. That's why we need to keep Eagle alive > > and support > > > Phase 3E. > > > > > > All together they will give us the full package of worldwide DX > > via > > > satellite and reliable high power communication in the Americas. > > > > > > 73. Stefan VE4NSA > > > > > > > -- > > AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, > > TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair > > "An optimist may see a light where there is none, but why > > must the pessimist always run to blow it out?" Descartes > > _______________________________________________ > > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the > > author. > > Not an AMSAT-NA member? Join now to support the amateur satellite > > program! > > n settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > >_______________________________________________ >Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. >Not an AMSAT-NA member? Join now to support the amateur satellite program! >Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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Re: AMSAT-BB Digest, Vol 2, Issue 670
by Wilhelm Hartinger 31 Oct '07

31 Oct '07

----- Original Message ----- From: <amsat-bb-request(a)amsat.org> To: <amsat-bb(a)amsat.org> Sent: Wednesday, October 31, 2007 3:08 AM Subject: AMSAT-BB Digest, Vol 2, Issue 670 > Send AMSAT-BB mailing list submissions to > amsat-bb(a)amsat.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://amsat.org/mailman/listinfo/amsat-bb > or, via email, send a message with subject or body 'help' to > amsat-bb-request(a)amsat.org > > You can reach the person managing the list at > amsat-bb-owner(a)amsat.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of AMSAT-BB digest..." > > > Today's Topics: > > 1. Re: Phase 4 (Robert McGwier) > 2. Re: Phase 4 (Nate Duehr) > 3. Re: Phase 4 (Stefan Wagener) > 4. L band amp power supply (Andrew Glasbrenner) > 5. AO-16 S band beacon (WILLIAMS MICHAEL) > 6. Re: AO-16 S band beacon (Andrew Glasbrenner) > 7. Re: Phase 4 (k0vty(a)juno.com) > 8. Re: Phase 4 (sco(a)sco-inc.com) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 30 Oct 2007 20:22:45 -0400 > From: Robert McGwier <rwmcgwier(a)gmail.com> > Subject: [amsat-bb] Re: Phase 4 > To: Stefan Wagener <stefan_wagener(a)hotmail.com> > Cc: "'John Marranca, Jr'" <KB2HSH(a)amsat.org>, amsat-bb(a)amsat.org > Message-ID: <4727CAD5.20607(a)gmail.com> > Content-Type: text/plain; charset=windows-1252; format=flowed > > We have kept Eagle satellite alive. The lab at U. Md. ES is being built > out and we are going ahead with the structure. We helped fund the > completion of P3E with our international partners and stepped up our > efforts to finish the IHU-3 for them (and us. > > The Eagle satellite structure build out is funded and slated for > completion in 2008. > > We are really going to try to get P3E a ride on Intelsat to balance > against the other offers to see what is best for AMSAT-DL and us. > > Stefan's analysis is correct. Any one geostationary bird can cover > roughly a third of the earth. > > Bob > > > > Stefan Wagener wrote: >> Yes, >> >> It is a great project and deserves our full support! >> >> Having said that we also need to realize, that depending on the location >> of >> the satellite above the equator we might only have the Americas in the >> foot >> print. No Europe or Africa and no Asia. Since the first geostationary >> satellite with amateur radio has to provide tangible support for >> government >> agencies (funding source) it will certainly be primarily centered around >> a >> North American footprint. That's why we need to keep Eagle alive and >> support >> Phase 3E. >> >> All together they will give us the full package of worldwide DX via >> satellite and reliable high power communication in the Americas. >> >> 73. Stefan VE4NSA >> > > -- > AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, > TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair > ?An optimist may see a light where there is none, but why > must the pessimist always run to blow it out?? Descartes > > > ------------------------------ > > Message: 2 > Date: Tue, 30 Oct 2007 18:25:21 -0600 > From: Nate Duehr <nate(a)natetech.com> > Subject: [amsat-bb] Re: Phase 4 > To: amsat bb <amsat-bb(a)amsat.org> > Message-ID: <5EB2FADB-C015-43DC-B792-737567482308(a)natetech.com> > Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes > > > On Oct 30, 2007, at 6:18 PM, Dave Guimont wrote: > >> >>> On Oct 30, 2007, at 2:58 PM, John Marranca, Jr wrote: >>> >>> > Imagine...ULTRA RELIABLE DX...24 hours per day. Those with antenna >>> > restrictions or home-owner's covenants could be QRV. And if the >>> up/ >>> > down >>> > links were UHF and above, a pair of helices could be used INSIDE, >>> > pointing >>> > through a window.... >>> >>> Imagine the hundreds of people QRM'ing each other. :-) >> >> Nate, you are kidding, of course! > > Yes, thus the " :-) ". Definitely meant as a joke. > > Just poking a little fun at this -- a fixed bird is going to be very > popular. Maybe sometimes "too" popular. > > It was meant to come out with a tone something like the phrase: > "Visualize Whirled Peas!". > > Kinda like a new restaurant opening in your neighborhood, you probably > don't want to be there on "opening night" if you're the type that > likes to avoid crowds. (GRIN) > > -- > Nate Duehr, WY0X > nate(a)natetech.com > > > > > > ------------------------------ > > Message: 3 > Date: Tue, 30 Oct 2007 19:43:07 -0500 > From: "Stefan Wagener" <stefan_wagener(a)hotmail.com> > Subject: [amsat-bb] Re: Phase 4 > To: "'Robert McGwier'" <rwmcgwier(a)gmail.com> > Cc: "'John Marranca, Jr'" <KB2HSH(a)amsat.org>, amsat-bb(a)amsat.org > Message-ID: <BAY130-DAV5457DC7F367F7F50F3D28F6930(a)phx.gbl> > Content-Type: text/plain; charset="us-ascii" > > Thanks Bob. > > It was great meeeting you in Pittsburgh and you have my full support for > your ideas and initatives. Folks like you keep things moving. > > 73, Stefan VE4NSA > > -----Original Message----- > From: Robert McGwier [mailto:[email protected]] > Sent: October-30-07 7:23 PM > To: Stefan Wagener > Cc: 'John Marranca, Jr'; amsat-bb(a)amsat.org > Subject: Re: [amsat-bb] Re: Phase 4 > > We have kept Eagle satellite alive. The lab at U. Md. ES is being built > out > and we are going ahead with the structure. We helped fund the completion > of > P3E with our international partners and stepped up our efforts to finish > the IHU-3 for them (and us. > > The Eagle satellite structure build out is funded and slated for > completion > in 2008. > > We are really going to try to get P3E a ride on Intelsat to balance > against > the other offers to see what is best for AMSAT-DL and us. > > Stefan's analysis is correct. Any one geostationary bird can cover > roughly > a third of the earth. > > Bob > > > > Stefan Wagener wrote: >> Yes, >> >> It is a great project and deserves our full support! >> >> Having said that we also need to realize, that depending on the >> location of the satellite above the equator we might only have the >> Americas in the foot print. No Europe or Africa and no Asia. Since the >> first geostationary satellite with amateur radio has to provide >> tangible support for government agencies (funding source) it will >> certainly be primarily centered around a North American footprint. >> That's why we need to keep Eagle alive and support Phase 3E. >> >> All together they will give us the full package of worldwide DX via >> satellite and reliable high power communication in the Americas. >> >> 73. Stefan VE4NSA >> > > -- > AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, > NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair "An optimist may see a light > where there is none, but why must the pessimist always run to blow it > out?" > Descartes > > > > ------------------------------ > > Message: 4 > Date: Tue, 30 Oct 2007 21:08:58 -0400 > From: "Andrew Glasbrenner" <glasbrenner(a)mindspring.com> > Subject: [amsat-bb] L band amp power supply > To: <amsat-bb(a)AMSAT.Org> > Message-ID: <0E3880FB1B8844199FEA5073A7C1DE97@Andrewlaptop> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > > I just ordered a newish LS-10a for my forthcoming amp, but I found one on > QTH.com I thought I'd share. I don't know the guy from Adam, but it looks > like a good deal to me. Caveat Emptor. > >>F/S Astron 28VDC Power Supply New. >>New Astron 28VDC Power supply. this is the Good for 12.5 Amps Continuous >>or >>15 AMPS ICS. This is a switching power supply so it light and is about 5 >> >pounds. $50.00 Plus Shipping. ASTRON Model SLS-15 >>Listing #626303 - Submitted on 10/28/07 by Callsign N9BX > > 73, Drew KO4MA > > > > ------------------------------ > > Message: 5 > Date: Tue, 30 Oct 2007 18:27:49 -0700 (PDT) > From: WILLIAMS MICHAEL <k9qho6762(a)sbcglobal.net> > Subject: [amsat-bb] AO-16 S band beacon > To: amsat-bb(a)amsat.org > Message-ID: <752853.74430.qm(a)web82707.mail.mud.yahoo.com> > Content-Type: text/plain; charset=iso-8859-1 > > Is AO-16's 2.4 GHz beacon working and how strong is it? > > > Thanks, > > Mike > K9QHO > AMSAT 33589 > > > ------------------------------ > > Message: 6 > Date: Tue, 30 Oct 2007 21:50:28 -0400 > From: "Andrew Glasbrenner" <glasbrenner(a)mindspring.com> > Subject: [amsat-bb] Re: AO-16 S band beacon > To: "WILLIAMS MICHAEL" <k9qho6762(a)sbcglobal.net>, <amsat-bb(a)amsat.org> > Message-ID: <A709F63C2B78490398244D3F4E373A92@Andrewlaptop> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > > AO-16 has been completely down for a while. > > 73, Drew KO4MA > > ----- Original Message ----- > From: "WILLIAMS MICHAEL" <k9qho6762(a)sbcglobal.net> > To: <amsat-bb(a)amsat.org> > Sent: Tuesday, October 30, 2007 9:27 PM > Subject: [amsat-bb] AO-16 S band beacon > > >> Is AO-16's 2.4 GHz beacon working and how strong is it? >> >> >> Thanks, >> >> Mike >> K9QHO >> AMSAT 33589 >> _______________________________________________ >> Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. >> Not an AMSAT-NA member? Join now to support the amateur satellite >> program! >> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > ------------------------------ > > Message: 7 > Date: Tue, 30 Oct 2007 20:58:08 CST > From: k0vty(a)juno.com > Subject: [amsat-bb] Re: Phase 4 > To: rwmcgwier(a)gmail.com, amsat-bb(a)amsat.org > Message-ID: <20071030.205808.-576635.6.k0vty(a)juno.com> > Content-Type: text/plain; charset=iso-8859-1 > > Hi Robert (N4HY) > > I have been reading all the info on the BB about what appears to be a Geo > syncronous amateur system supported by a commercial bird. > Obviously you and others have done much work to understand this scheme > in order to develop support for it. > My problem is I do not have enough to really handle this issue as a Amsat > Coordinator and was not able to attend the symposium. > Being an uninformed Amsat Coordinator is not healthy for Amsat. > > Is a system level proposal for this new Phase 4 going to be provided with > sufficient numbers to allow membership evaluation before any impact on > the Eagle system effort is considered acceptable. > A question that needs an answer as I have already been asked. > > Will an analysis of the effects on the HEO DXCC desires of the membership > as to the effect of a stationary fixed aperture antenna pattern in Geo > versus a moving satellite location fixed aperture antenna system not in > Geo. > To include the need to use high squint angles and power levels required > on both > ends of this sort of link budget. > > Sorry I did not attend the symposium. > > Joe Murray K0VTY > Amsat # 860 > Amsat area Coordinator NE > ================================= > On Tue, 30 Oct 2007 20:22:45 -0400 Robert McGwier <rwmcgwier(a)gmail.com> > writes: >> We have kept Eagle satellite alive. The lab at U. Md. ES is being >> built >> out and we are going ahead with the structure. We helped fund the >> completion of P3E with our international partners and stepped up >> our >> efforts to finish the IHU-3 for them (and us. >> >> The Eagle satellite structure build out is funded and slated for >> completion in 2008. >> >> We are really going to try to get P3E a ride on Intelsat to balance >> >> against the other offers to see what is best for AMSAT-DL and us. >> >> Stefan's analysis is correct. Any one geostationary bird can cover >> >> roughly a third of the earth. >> >> Bob >> >> >> >> Stefan Wagener wrote: >> > Yes, >> > >> > It is a great project and deserves our full support! >> > >> > Having said that we also need to realize, that depending on the >> location of >> > the satellite above the equator we might only have the Americas in >> the foot >> > print. No Europe or Africa and no Asia. Since the first >> geostationary >> > satellite with amateur radio has to provide tangible support for >> government >> > agencies (funding source) it will certainly be primarily centered >> around a >> > North American footprint. That's why we need to keep Eagle alive >> and support >> > Phase 3E. >> > >> > All together they will give us the full package of worldwide DX >> via >> > satellite and reliable high power communication in the Americas. >> > >> > 73. Stefan VE4NSA >> > >> >> -- >> AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, >> TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair >> ?An optimist may see a light where there is none, but why >> must the pessimist always run to blow it out?? Descartes >> _______________________________________________ >> Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the >> author. >> Not an AMSAT-NA member? Join now to support the amateur satellite >> program! >> n settings: http://amsat.org/mailman/listinfo/amsat-bb >> >> > > > ------------------------------ > > Message: 8 > Date: Tue, 30 Oct 2007 22:09:50 -0400 > From: sco(a)sco-inc.com > Subject: [amsat-bb] Re: Phase 4 > To: <amsat-bb(a)amsat.org> > Message-ID: <E1In30S-0001rr-TY(a)elasmtp-mealy.atl.sa.earthlink.net> > Content-Type: text/plain; charset="us-ascii"; format=flowed > > At 07:37 PM 10/30/2007, you wrote: >>Yes, >> >>It is a great project and deserves our full support! >> >>Having said that we also need to realize, that depending on the location >>of >>the satellite above the equator we might only have the Americas in the >>foot >>print. No Europe or Africa and no Asia. Since the first geostationary >>satellite with amateur radio has to provide tangible support for >>government >>agencies (funding source) it will certainly be primarily centered around a >>North American footprint. That's why we need to keep Eagle alive and >>support >>Phase 3E. >> >>All together they will give us the full package of worldwide DX via >>satellite and reliable high power communication in the Americas. >> >>73. Stefan VE4NSA > > if its an AMSAT-NA project and money then I hope it is over the > Americas!!! > Think of the possibilities ... WAS, worked all US Counties (by Sat), > worked all grids, worked all Canadian provinces, etc. Probably could > even do it all MOBILE too, if one wanted to. > > Les W4SCO > www.scoincsoftware.com > > > > ------------------------------ > > _______________________________________________ > Sent via amsat-bb(a)amsat.org. Opinions expressed are those of the author. > Not an AMSAT member? Join now to support the amateur satellite program! > http://amsat.org/mailman/listinfo/amsat-bb > > > End of AMSAT-BB Digest, Vol 2, Issue 670 > **************************************** > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.503 / Virus Database: 269.15.14/1100 - Release Date: > 30.10.2007 18:26 >

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geo stationary bird
by Joe Leikhim 31 Oct '07

31 Oct '07

Wouldn't it be fair to say that while the commercial footprint maps are based on "5 nines" reliability, line of sight links and tightly focused microwave beams, Amateur operations in U/V bands will be useable over a wider footprint, albeit to 50% reliability to a surprizing extent? From: w7lrd(a)comcast.net Subject: [amsat-bb] geo stationary bird To: amsat-bb(a)amsat.org Message-ID: <103120070250.13572.4727ED740001D5230000350422165279660B9D04C999(a)comcast.net> Content-Type: text/plain Hello To play the devils advocate for a moment. With a geo (stuck) sattelite we are pretty much stuck with the same foot print forever. Unless of course there is some sort of cross linking in the future. I very fondly recall AO-40 and bringing it up on my computer and seeing where the foot print was today. Maybe it's the Europeans or perhaps the VK's, ZL's (love their accent), or maybe some JA's, (practice my Japanese). At some time, I knew I could cover the whole planet. I do of course believe this is an excellent opportunity, though there are a some limitations. -- 73 Bob W7LRD -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P

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Re: Phase 4
by Robert McGwier 30 Oct '07

30 Oct '07

Joe: Thanks for your question and your support as an AMSAT AC! There will be essentially no squint angle problem. Consider it to be a constant AO-40 apogee forever with the antennas always nadir pointing. The following is the CURRENT plan (straw man) before we have had our first serious engineering meeting. The "go ahead and tell the world" came from Intelsat five days before the symposium. So factor that into both your thinking and your responses to questions. Until then, we had little to say. You can already see the impact of the world wide amateur distribution on this topic. Having said that, it should be clear we have a lot of work to do. The current plan is to take the Eagle payloads and adapt and modify them for this opportunity. There will be a serious linear transponder and a serious digital transponder to support the AMSAT vision statement. We are looking to give amateur radio in the U.S area its best ever tool to support those activities that keep our bands in our possession: EMCOMM. This will also be the reason and source for much of our funding. So I would say U/L up and V/S down for linear and C up and S2 down for digital. The S2 down will have extremely low power flux density to meet the "noninterference" requirement that should allow wide operation. We do not know which bird(s) we will be on, so we do not yet know the footprint. Look here for the Intelsat map. They circumnavigate the equatorial belt to the point you could almost walk across! http://www.intelsat.com/network/satellite/ Click on the flash map if you have flash installed. It is pretty neat. There is nothing definitive we can say, we are just too new to this and are just getting ourselves fully engaged in the process. Bob N4HY k0vty(a)juno.com wrote: > Hi Robert (N4HY) > > I have been reading all the info on the BB about what appears to be a Geo > syncronous amateur system supported by a commercial bird. > Obviously you and others have done much work to understand this scheme > in order to develop support for it. > My problem is I do not have enough to really handle this issue as a Amsat > Coordinator and was not able to attend the symposium. > Being an uninformed Amsat Coordinator is not healthy for Amsat. > > Is a system level proposal for this new Phase 4 going to be provided with > sufficient numbers to allow membership evaluation before any impact on > the Eagle system effort is considered acceptable. > A question that needs an answer as I have already been asked. > > Will an analysis of the effects on the HEO DXCC desires of the membership > as to the effect of a stationary fixed aperture antenna pattern in Geo > versus a moving satellite location fixed aperture antenna system not in > Geo. > To include the need to use high squint angles and power levels required > on both > ends of this sort of link budget. > > Sorry I did not attend the symposium. > > Joe Murray K0VTY > Amsat # 860 > Amsat area Coordinator NE > -- AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair “An optimist may see a light where there is none, but why must the pessimist always run to blow it out?” Descartes

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Re: Phase 4
by Bruce 30 Oct '07

30 Oct '07

I would also like to see what kind of financial impact this will have on amsat (hopefully we have an income for developing something for Intelsat). also it sounds like it will be a digital transponder. what would the estimated cost be for the average ham and is the interface going to be able to work with ht's that we are presently using. I can remember phil karn suggesting a digital transponder with a ground station interface to the board about 5 years ago when I was on the board. 73...bruce Sent from my iPhone On Oct 30, 2007, at 8:58 PM, k0vty(a)juno.com wrote: > Hi Robert (N4HY) > > I have been reading all the info on the BB about what appears to be > a Geo > syncronous amateur system supported by a commercial bird. > Obviously you and others have done much work to understand this scheme > in order to develop support for it. > My problem is I do not have enough to really handle this issue as a > Amsat > Coordinator and was not able to attend the symposium. > Being an uninformed Amsat Coordinator is not healthy for Amsat. > > Is a system level proposal for this new Phase 4 going to be provided > with > sufficient numbers to allow membership evaluation before any impact on > the Eagle system effort is considered acceptable. > A question that needs an answer as I have already been asked. > > Will an analysis of the effects on the HEO DXCC desires of the > membership > as to the effect of a stationary fixed aperture antenna pattern in Geo > versus a moving satellite location fixed aperture antenna system not > in > Geo. > To include the need to use high squint angles and power levels > required > on both > ends of this sort of link budget. > > Sorry I did not attend the symposium. > > Joe Murray K0VTY > Amsat # 860 > Amsat area Coordinator NE > ================================= > On Tue, 30 Oct 2007 20:22:45 -0400 Robert McGwier > <rwmcgwier(a)gmail.com> > writes: >> We have kept Eagle satellite alive. The lab at U. Md. ES is being >> built >> out and we are going ahead with the structure. We helped fund the >> completion of P3E with our international partners and stepped up >> our >> efforts to finish the IHU-3 for them (and us. >> >> The Eagle satellite structure build out is funded and slated for >> completion in 2008. >> >> We are really going to try to get P3E a ride on Intelsat to balance >> >> against the other offers to see what is best for AMSAT-DL and us. >> >> Stefan's analysis is correct. Any one geostationary bird can cover >> >> roughly a third of the earth. >> >> Bob >> >> >> >> Stefan Wagener wrote: >>> Yes, >>> >>> It is a great project and deserves our full support! >>> >>> Having said that we also need to realize, that depending on the >> location of >>> the satellite above the equator we might only have the Americas in >> the foot >>> print. No Europe or Africa and no Asia. Since the first >> geostationary >>> satellite with amateur radio has to provide tangible support for >> government >>> agencies (funding source) it will certainly be primarily centered >> around a >>> North American footprint. That's why we need to keep Eagle alive >> and support >>> Phase 3E. >>> >>> All together they will give us the full package of worldwide DX >> via >>> satellite and reliable high power communication in the Americas. >>> >>> 73. Stefan VE4NSA >>> >> >> -- >> AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL, >> TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair >> “An optimist may see a light where there is none, but why >> must the pessimist always run to blow it out?” Descartes >> _______________________________________________ >> Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the >> author. >> Not an AMSAT-NA member? Join now to support the amateur satellite >> program! >> n settings: http://amsat.org/mailman/listinfo/amsat-bb >> >> > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the > author. > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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AO-16 S band beacon
by WILLIAMS MICHAEL 30 Oct '07

30 Oct '07

Is AO-16's 2.4 GHz beacon working and how strong is it? Thanks, Mike K9QHO AMSAT 33589

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L band amp power supply
by Andrew Glasbrenner 30 Oct '07

30 Oct '07

I just ordered a newish LS-10a for my forthcoming amp, but I found one on QTH.com I thought I'd share. I don't know the guy from Adam, but it looks like a good deal to me. Caveat Emptor. >F/S Astron 28VDC Power Supply New. >New Astron 28VDC Power supply. this is the Good for 12.5 Amps Continuous or >15 AMPS ICS. This is a switching power supply so it light and is about 5 > >pounds. $50.00 Plus Shipping. ASTRON Model SLS-15 >Listing #626303 - Submitted on 10/28/07 by Callsign N9BX 73, Drew KO4MA

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Checking on a few digital birds...
by Mark L. Hammond 30 Oct '07

30 Oct '07

Has anybody heard AO-16 or POSAT lately? I heard CW (telemetry?) coming from LO-19 the other day....but I didn't hear either of the other birds. Just checking... 73, Mark L. Hammond [N8MH]

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