[amsat-bb] RS-38 or RS-28?
Hello All, I'm a bit confused over RS-38 or RS-28. I heard the CW beacon on 435.265 as found by Mike Rupprecht, but did not decode it at the time. Are we looking at two different satellites? A previous report suggested 435.365 and Andy Thomas' report had 435.440 and 435.490. Would these be on only over the control stations? 73 de David VK5DG, who has to wait a while for the next pass. ___ Sent via amsat...@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
[amsat-bb] Wanted: simple ISS tracking page
I am looking for a simple tracking display for my sat_status site Ideas ? I see a few but they are surrounded by goobly goop -- Andrew Rich Airways Technical Officer Grade 4 Surveillance - RADAR ADS-B Amateur Radio Callsign VK4TEC email: vk4...@tech-software.net web: www.tech-software.net ___ Sent via amsat...@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
[amsat-bb] Re: WAS - Award - Mistake
K7WIN - Jeff wrote: > I received my WAS award yesterday. Upon opening it I noticed that it did not > indicate "Satellite" and was numbered #53,981. > > > > I initially indicated on my application that it was for Satellite by > checking the "Satellite" box. > > > > What is the WAS Satellite Award supposed to have displayed on the Award and > what are the numbers up to? > I can only go by mine as a reference. It has OSCAR printed above and slightly to the right of the large A of WAS. The number is #285 and dated 30 July 2001. I somehow doubt that it has gone from 285 to 53,981 in 8 years... -- 73 - Jim Walls - K6CCC j...@k6ccc.org Ofc: 818-548-4804 http://home.earthlink.net/~k6ccc AMSAT Member 32537 - WSWSS Member 395 ___ Sent via amsat...@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
[amsat-bb] ANS-270 AMSAT News Service Weekly Bulletins
AMSAT NEWS SERVICE ANS-270 ANS is a free, weekly, news and information service of AMSAT North America, The Radio Amateur Satellite Corporation. ANS 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. Please send any amateur satellite news or reports to: ans-edi...@amsat.org ** * 2009 AMSAT Space Symposium and Annual General Meeting October 9-11 * * Four Points Sheraton Hotel at the Baltimore Washington Airport * * Details - http://www.amsat.org/amsat-new/symposium/2009/index.php * ** In this edition: * Two Weeks and Counting to 2009 AMSAT-NA Space Symposium * ARISSat-1 Structure Drawings Available on AMSAT Web * SumbandilaSat Reaches Orbit - Awaiting Commissioning * Four New University Cubesats in Orbit and Heard on 70cm * College Night on Satellites Coming October 1-2 * Satellite Operators Sought for Shortwave Broadcast Interview * Satellite Shorts From All Over SB SAT @ AMSAT $ANS-270.01 Two Weeks and Counting to 2009 AMSAT-NA Space Symposium AMSAT News Service Bulletin 270.01 >From AMSAT HQ SILVER SPRING, MD. September 27, 2009 To All RADIO AMATEURS BID: $ANS-270.01 Co-Chairs, Frank Bauer, KA3HDO, and Janet Bauer remind you that the 2009 AMSAT Symposium is rapidly approaching! And we hope you can join us, especially given that there are some low-cost airfares out there for those of us in the US. We have an outstanding venue this year at the Four Points Sheraton at the BWI Airport. Your symposium committee recently did a walk through of this facility. The accommodations and meeting rooms are superb. Frank said, "I do a lot of traveling and I must say that the rooms are absolutely beautiful. You will definitely get a substantial bang for your buck (or Euro, etc.) at this symposium. And planned 40th Anniversary celebratory events will be truly memorable". + Free internet in the rooms and in the conference facility + Free parking + All AMSAT member get free admittance to the 40th Anniversary Party Friday Evening---food, cake, meet 'n greet, eyeball QSOs. + Beautiful flat screen televisions in each room + Great Banquet Speaker--- Martin Collins, Smithsonian Institution National Air and Space Museum Curator, Space History Museum, "Making the Space Age, the First 50 years" + High-Caliber paper presentations on recent Satellite Developments and satellite operations + Poster Session with Satellite, University, and ARISS activities. + An AMSAT 40th anniversary retrospective is included + IARU Satellite Forum + ARISS Operations Team Meeting---ARISS team members and new volunteers are welcome to attend + Great prizes from major ham radio manufacturers Full details are available on-line: http://www.amsat.org/amsat-new/symposium/2009/index.php The Symposium Schedule and list of presentations has been posted. You can now register online for the 2009 AMSAT Space Symposium and Annual Meeting: http://www.amsat-na.com/store2/SymposiumReg2009.php Online registration will disappear on October 5th so do not wait too long! Our guest speaker is Dr. Martin Collins from the the Smithsonian Air and Space Museum. He will talk on "Making the Space Age: The First Fifty Years". Follow the links from the Symposium page to book your room at the hotel. An 800 number is also available. When booking your room let the operator know that you are with the Radio Amateur Satellite Corporation for the special rates. (They don't seem to know about AMSAT.) Please be advised that the cut-off date for the AMSAT block at the Four Points by Sheraton BWI Airport is September 28th. Getting our meeting rooms for free is dependant on the number of room nights we secure. So, PLEASE make your room reservations as soon as possible. Contact Mark Steiner, K3MS (k...@amsat.org) if you are interested in preparing a poster display. Mark needs the following information by Tuesday, Oct. 6 regarding what you will need for your display: + Square footage of floor space + Number of tables (to be provided by hotel) + If a power drop is needed + Any other special needs [ANS thanks Frank Bauer, KA3HDO, and Janet Bauer for the above information] /EX SB SAT @ AMSAT $ANS-270.02 ARISSat-1 Structure Drawings Available on AMSAT Web AMSAT News Service Bulletin 270.02 >From AMSAT HQ SILVER SPRING, MD. September 27, 2009 To All RADIO AMATEURS BID: $ANS-270.02 Drawings of the ARISSat-1 structure are available on the AMSAT web site. Bob Davis, KF4KSS and team have done an outstanding job designing this structure around the existing modules for SuitSat-2. There will be a full scale model of ARISSat-1 at the Symposium as well as working hardware. Bob expects to start cutting metal for the structure next week. [ANS t
[amsat-bb] Re: FM sats from Antartica for VK and ZL landers
i noted a packet from antarctica via ISS as well -- Andrew Rich Airways Technical Officer Grade 4 Surveillance - RADAR ADS-B Amateur Radio Callsign VK4TEC email: vk4...@tech-software.net web: www.tech-software.net - Original Message - From: "Alan VE4YZ" To: "'AMSAT-BB'" Sent: Sunday, September 27, 2009 8:33 AM Subject: [amsat-bb] FM sats from Antartica for VK and ZL landers > Just noticed this on QRZ.COM from Bill K7MT who used to be a regular on > the > FM sats a few years ago with his antenna on his helmet on the ski slopes > in > MT... > > > > > > > Howdy from Bill K7MT Helena, Mt. > > I will be deploying back to McMurdo Station Antarctica Nov 15, 2009 - Feb > 20, 2010. I will be active from KC4USV Sundays GMT on SSB. I have > requests from Europe to come in early around 1800 GMT on Saturdays so they > can work Antarctica and I will be there. I am taking a rigblaster for > PSK-31 > on 14.070 and CW on 14.043 if time permits. I am also taking an Arrow II > antenna/Kenwood TH-7 to work the FM satellites to VK and ZL land. Finally, > if I get it operational, APRS VHF to HF with a Kam Plus. VK6CO will help > me > HF 30 meters with their HF APRS parameters. You just might see me driving > out on the Ross Ice Sea as K7MT-7 in Ivan the Terra Bus. Pictures and > information on my home web page at: > > http://www.mt.net/~k7mt > > Qsl is via K1IED Larry who has done a terrific job with the QSL cards from > Exel sprea sheet I will be sending to him weekly from McMurdo. > > See ya on HF in about 45 days from McMurdo Station Antarctica. > > Cheers Bill Erhardt K7MT > > ___ > Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] Re: Kauai on Ao51
Correction, time should be 4:30 local Hawaii time Sunday afternoon > From: w6z...@msn.com > To: amsat-bb@amsat.org > Date: Sat, 26 Sep 2009 22:00:44 + > Subject: [amsat-bb] Kauai on Ao51 > > I will be on Ao51, grid BL01 Sunday at 3:30 pm Hawaiian time. > This will be my last opportunity before leaving for the mainland. > 73, w6zq > > ___ > Sent via amsat...@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 ___ Sent via amsat...@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
[amsat-bb] FM sats from Antartica for VK and ZL landers
Just noticed this on QRZ.COM from Bill K7MT who used to be a regular on the FM sats a few years ago with his antenna on his helmet on the ski slopes in MT... Howdy from Bill K7MT Helena, Mt. I will be deploying back to McMurdo Station Antarctica Nov 15, 2009 - Feb 20, 2010. I will be active from KC4USV Sundays GMT on SSB. I have requests from Europe to come in early around 1800 GMT on Saturdays so they can work Antarctica and I will be there. I am taking a rigblaster for PSK-31 on 14.070 and CW on 14.043 if time permits. I am also taking an Arrow II antenna/Kenwood TH-7 to work the FM satellites to VK and ZL land. Finally, if I get it operational, APRS VHF to HF with a Kam Plus. VK6CO will help me HF 30 meters with their HF APRS parameters. You just might see me driving out on the Ross Ice Sea as K7MT-7 in Ivan the Terra Bus. Pictures and information on my home web page at: http://www.mt.net/~k7mt Qsl is via K1IED Larry who has done a terrific job with the QSL cards from Exel sprea sheet I will be sending to him weekly from McMurdo. See ya on HF in about 45 days from McMurdo Station Antarctica. Cheers Bill Erhardt K7MT ___ Sent via amsat...@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
[amsat-bb] Kauai on Ao51
I will be on Ao51, grid BL01 Sunday at 3:30 pm Hawaiian time. This will be my last opportunity before leaving for the mainland. 73, w6zq ___ Sent via amsat...@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
[amsat-bb] Satellite 101 for Chicago area club?
Members of a Chicago area amateur radio club indicated that they would desire a program on amateur radio satellites. This program would have to be informational and geared toward recently licensed amateurs, with modest financial means for initial satellite usage and interest. A demonstration for this program would be highly desirable. I have already contacted AMSAT Coordinators for the area -- one indicated that he has stepped down from the coordinator role due to present time commitments, while the other never replied to inquiries. The program would be at 8:00 PM in the Chicago western suburbs on Friday, October 16 at 8:00 PM or Friday, November 20th. Interested presenters or speakers should contact: Greg Beat, W9GB at w9gb at arrl dot net. G. Beat AMSAT-NA, AMSAT-UK ___ Sent via amsat...@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
[amsat-bb] Tatiana-2: RS 38: News just in
Following text just in tonight from Moscow: "our satellite called as RS-38 also Universitetskiy-Tatiana-2 was launched in 17 september 2009 in 19h 55min 12 sec DMT(Decret Moscow Time) from Baikonur cosmodrome launching pad N 31. All onboard systems are working in normal mode. Satellite is stabilisated and orientated properly. We are working ower it. Mass of the satellite 98,2 kg. Power of solar battareys 150 Watts, onboard voltage 27 Volts DC. Downlink central frequences are 435.440 MHz and 435.490 MHz for onboard systems telemetry and 1.708 GHz for scientific telemetry also. I hope that you are well. best wishes and 73" 73 de andy G0SFJ ___ Sent via amsat...@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
[amsat-bb] Re: objects nunber
These have been suggested. ITUPSAT1 1 35934U 09051D 09266.99498802 .0364 0-0 1-3 034 2 35934 098.3432 001.6766 0010433 256.9573 103.1084 14.52588677 111 SWISSCUBE 1 35932U 09051B 09266.92637809 .0360 0-0 1-3 033 2 35932 098.3362 001.6263 0006692 285.2589 074.8063 14.5209511595 BEESAT 1 35933U 09051C 09267.20165191 .0365 0-0 1-3 042 2 35933 098.3316 001.8957 0004681 307.1077 052.9887 14.52667744 138 UWE-2 1 35935U 09051E 09267.47761234 .1929 0-0 48744-3 046 2 35935 098.3417 002.1786 0006949 283.1563 076.8911 14.52112524 176 73, Mike DK3WN Nick Pugh K5QXJ wrote: > What is the best guess on the object numbers on the last two group of cube > sat launched recently? > > > > Thanks > > > > nick > > ___ > Sent via amsat...@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 > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.409 / Virus Database: 270.13.112/2393 - Release Date: 09/24/09 > 18:00:00 > -- Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032 Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail ni...@ngunn.net www http://www.ngunn.net Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club International #385, Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC, GCARES, XWARN. ___ Sent via amsat...@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
[amsat-bb] RS-28 CW telemetry
17:45 UTC strong CW beacon on 435.266 MHz rs28 ubs163 uaba165 uabb165 ibs3 iaba126 iabb126 ispa0 ispb126 taba132 tabb131 tsep135 mcon69 sma138 smb123 mra6 mrb30 rs28 ubs16. uaba179 uabb179 ibs1 iaba123 iabb133 ispa4 ispb129 taba132 tabb131 tsep135 mcon69 sma98 smb85 mra6 mrb30 rs28 ubs165 uaba167 uabb167 ibs3 iaba126 iabb126 ispa0 ispb127 taba132 tabb131 I used NORAD #35869. Total difference in doppler ~1KHz, not sure if this is the right TLE See here: http://www.dk3wn.info/p/?p=8471 73, Mike DK3WN ___ Sent via amsat...@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
[amsat-bb] Re: AO-7 help
Drew. you and I obviously have our differences. However you are one of the folks on this board (and on the BOD) who consistently helps others on the sats...and does it in a "bravo zulu" (well done) manner Robert WB5MZO > Date: Sat, 26 Sep 2009 10:30:06 -0400 > From: glasbren...@mindspring.com > To: rswa...@twcny.rr.com > CC: amsat-bb@amsat.org > Subject: [amsat-bb] Re: AO-7 help > > > > > > I use the translation table provided by AMSAT and the books.. > > Have those programmed into the radio as splits.. > > > > LSB 432.XXX up and USB 145.XXX down . > > ( mode B like this morning ) > > I can hear PLENTY of QSO's. > > I cannot make contact with anyone .. > > > > > > Those splits are only right when Doppler is zero. Other wise, you have > around +/-7 khz shift to deal with. It's really tough to work AO-7 > half-duplex with no Doppler tuning. REALLY tough. If you have a PC > nearby, I'd recommend trying to use SatPC32 to control the Doppler shift > during the pass. CAT cables are pretty cheap on Ebay, and really easy to > set up with the 897. > > Also, since you are using gain antennas AND are half duplex, you should > make sure you keep the power output low, like 5 watts or so, since you > can't hear if you our overdriving the uplink and making the satellite FM > for everyone. > > 73, Drew KO4MA > > ___ > Sent via amsat...@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 _ Microsoft brings you a new way to search the web. Try Bing™ now http://www.bing.com?form=MFEHPG&publ=WLHMTAG&crea=TEXT_MFEHPG_Core_tagline_try bing_1x1 ___ Sent via amsat...@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
[amsat-bb] Re: AO-7 help
Glen Zook wrote: > I haven't used AO-7 for some time (need to revise my antennas to do so > again). But, back in the "goode olde dayes" (when the satellite first went > into orbit) we didn't have any problems with Doppler. The accepted method > was to leave the transmit frequency alone and keep one hand on the receiver > to compensate for the frequency shift and send CW with the other hand (or > hold the microphone for SSB). No one even thought of compensating for > Doppler any other way. > > Of course at the time everyone used a separate receiver and transmitter (no > transceivers) so you could keep the receiver active while transmitting. > There were hundreds of QSOs made on each orbit and everyone had a "ball". > > Glen, K9STH > AMSAT 239 / LM 463 > > Website: http://k9sth.com > The half-duplex part is what makes it hard. I ran from 1992 until about 2006 without computer tuning, although I followed the current AMSAT protocol of tuning the higher of the two frequencies. You don't drift into others as much that way. I've tried this all ways, and if you are going to run half-duplex, life is much easier with CAT tuning. 73, Drew KO4MA ___ Sent via amsat...@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
[amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE
Folks, I think you are focusing only on transmitting loss and have overlooked the impact that loss has on noise figure. If your HT has a low NF (doubtful) adding 3-dB loss in Rx will raise the NF 3-dB higher. The actual loss of sensitivity could be more than that. Filter's size determines efficiency and insertion loss. The tiny diplexer in the Arrow is a compromise between performance and size. I have a Comet 416B and even it has some loss about 47w out for 50w in. But that is not anywhere near 3-dB. I use mine to connect my dual-band vertical to my FT-847 which has separate connectors for 2m and 70cm. I used this antenna to contact the ISS a few years ago (worked well because the ISS never rises above 11-deg. elevation, here). But I do not use if for SSB or other weak-signal use. Ed - KL7UW At 02:26 AM 9/26/2009, Jeff Yanko wrote: >Hi Joe and all, > >I doubt if the Arrow diplexer has 20dB of loss. If it did, we'd never >receive a signal! :) > >I believe somebody here on the -bb will be performing a test on the Arrow >diplexer using a vector/network analyzer. It will be interesting to say the >least. There were preliminary reports saying the device had a loss anywhere >from 2.65 to 2.80dB. That's close enough to 3dB which is technically half >power loss. Add the loss of a short piece of coax and it will certainly be >pushed over the 3dB line. > >If I recall correctly, cross polarity is also a 3dB loss. I have noticed >that when I rotate the antenna I might get a stronger downlink but I never >lose it when I rotate it back. Before, when I would do that it would drop >once I rotated in either direction from the peak signal. Basically what is >going on is the lossy device is removed and replaced with a more efficient >one, that extra net gain you just boosted now shows how the system on the >antenna side of the diplexer is truly performing. > >I don't have an antenna analysis program to perform a test, but what does a >7 element 440 yagi pattern look like and what is its overall gain? > >What we need to do is break down the antenna configuration into 3 segments, >see what their losses and gains are then combine them for the overall >figure. The 3 segment would be the antenna, the diplexer and the coax. >Each one will be tested individually to give an accurate number for each. > > >73, > > >Jeff WB3JFS >- Original Message - >From: "Joe" >To: "Gary "Joe" Mayfield" >Cc: "'AMSAT-BB'" >Sent: Friday, September 25, 2009 6:42 PM >Subject: [amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE > > > > as in the texts below, there is something else going on here. > > > > That Diplexor can not be all that bad. two reasons. > > > > How many db down is the front to side of that antenna? > > > > and I can not imaging someone would sell a diplexor that has greater > > than 20 db of losses. > > > > because of the statement that how criticalpolarity was with the > > original, and now the antenna has to be nearly 90 degrees cross > > polarized to make it drop out uhh > > > > that close to 30 db, > > > > at least 20,, > > > > something else is going on here > > > > Gary "Joe" Mayfield wrote: > > > >>> > >>>Another issue I came across was how wide the beamwidth is of the Arrow > >>>Antenna between the Arrow diplexer and the new diplexer. I was wondering > >>> > >>> > >>if > >> > >> > >>>this was going to happen and it did. The reason that this happened was > >>> > >>> > >>with > >> > >> > >>>the old diplexer, the signal attenuated so much that you had to be > >>>pointed > >>>right smack dab on the bird, a few degrees off and you lost the signal. > >>>Now, with the new diplexer, you can point the beam in the general > >>> > >>> > >>direction > >> > >> > >>>and still copy the bird. In most cases I had to turn the beam 90 degrees > >>>before I completely lost the downlink! Twisting the antenna to make > >>>polarization changes makes absolutely no difference now. This also > >>>attributes to the fact that now I'm copying the entire pass without > >>> > >>> > >>dropouts > >> > >> > >>>or fades. Makes sense. What I've regained over the lossy diplexer makes > >>> > >>> > >>up > >> > >> > >>>for any polarization differences, etc. for a better copiable signal. > >>> > >>>Next weekend I will have to try more passes and get a feel of how much > >>> > >>> > >>this > >> > >> > >>>system has changed. > >>> > >>> > >>>73, > >>> > >>>Jeff WB3JFS > >>>Las Vegas, NV > >>>DM26 > >>> > >>> > >>> > >>> > >>> > >>> > >>>___ > >>>Sent via amsat...@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 > >>> > >>> > >>> > >> > >>___ > >>Sent via amsat...@amsat.org. Opinions expressed are those of the author. > >>Not an AMSAT-NA member? Join now to suppo
[amsat-bb] WAS - Award - Mistake
I received my WAS award yesterday. Upon opening it I noticed that it did not indicate "Satellite" and was numbered #53,981. I initially indicated on my application that it was for Satellite by checking the "Satellite" box. What is the WAS Satellite Award supposed to have displayed on the Award and what are the numbers up to? Thank you, Jeff - K7WIN ___ Sent via amsat...@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
[amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE
I've had my battles with desense. Originally I was going in the direction that the RX antenna was in the envelope of the TX. It made sense and some elmers suggested it. Even at low power (5-10W) and separating antennas by 30 ft it would still de-sense, but not as pronounced (omnidirectional antennas). I fixed it two ways. The biggest poroblem was my linear. To be kind to my FT857 I ran it at low power through a mirage amp to get output up to 35 watts or so max. 90% of my problem was that amp (which I assume was pushing sprurious or harmonics). If I took it offline and ran the FT857 at the same 35W the desense was greatly reduced but not quite gone. The remainder was taken care of by using a second diplexer as a poor mans low pass filter. Just put a dummy load on the side I didnt need. Now the omnis can be close without this problem and I even built a pair of cheap Jpole yagis on the same boom (definately in the same envelope) but no desense. I never got around to trying another amp. I was just delighted to have the problem solved. So there's my story in case it helps someone else consider this possibility instead of spending all the hours chasing it that I had to endure! Mike WB1AAT -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Joe Sent: Friday, September 25, 2009 6:43 PM To: Gary "Joe" Mayfield Cc: 'AMSAT-BB' Subject: [amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE as in the texts below, there is something else going on here. That Diplexor can not be all that bad. two reasons. How many db down is the front to side of that antenna? and I can not imaging someone would sell a diplexor that has greater than 20 db of losses. because of the statement that how criticalpolarity was with the original, and now the antenna has to be nearly 90 degrees cross polarized to make it drop out uhh that close to 30 db, at least 20,, something else is going on here ___ Sent via amsat...@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
[amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE
No, Cross polarization in the real world is 20 to 30 db loss. In the theoretical world it's infinite, http://www.amsat.org/amsat/archive/amsat-bb/200101/msg01220.html Joe WB9SBD Jeff Yanko wrote: > Hi Joe and all, > > I doubt if the Arrow diplexer has 20dB of loss. If it did, we'd never > receive a signal! :) > > I believe somebody here on the -bb will be performing a test on the > Arrow diplexer using a vector/network analyzer. It will be > interesting to say the least. There were preliminary reports saying > the device had a loss anywhere from 2.65 to 2.80dB. That's close > enough to 3dB which is technically half power loss. Add the loss of a > short piece of coax and it will certainly be pushed over the 3dB line. > > If I recall correctly, cross polarity is also a 3dB loss. I have > noticed that when I rotate the antenna I might get a stronger downlink > but I never lose it when I rotate it back. Before, when I would do > that it would drop once I rotated in either direction from the peak > signal. Basically what is going on is the lossy device is removed and > replaced with a more efficient one, that extra net gain you just > boosted now shows how the system on the antenna side of the diplexer > is truly performing. > > I don't have an antenna analysis program to perform a test, but what > does a 7 element 440 yagi pattern look like and what is its overall gain? > > What we need to do is break down the antenna configuration into 3 > segments, see what their losses and gains are then combine them for > the overall figure. The 3 segment would be the antenna, the diplexer > and the coax. Each one will be tested individually to give an accurate > number for each. > > > 73, > > > Jeff WB3JFS > - Original Message - From: "Joe" > To: "Gary "Joe" Mayfield" > Cc: "'AMSAT-BB'" > Sent: Friday, September 25, 2009 6:42 PM > Subject: [amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE > > >> as in the texts below, there is something else going on here. >> >> That Diplexor can not be all that bad. two reasons. >> >> How many db down is the front to side of that antenna? >> >> and I can not imaging someone would sell a diplexor that has greater >> than 20 db of losses. >> >> because of the statement that how criticalpolarity was with the >> original, and now the antenna has to be nearly 90 degrees cross >> polarized to make it drop out uhh >> >> that close to 30 db, >> >> at least 20,, >> >> something else is going on here >> >> Gary "Joe" Mayfield wrote: >> Another issue I came across was how wide the beamwidth is of the Arrow Antenna between the Arrow diplexer and the new diplexer. I was wondering >>> if >>> >>> this was going to happen and it did. The reason that this happened was >>> with >>> >>> the old diplexer, the signal attenuated so much that you had to be pointed right smack dab on the bird, a few degrees off and you lost the signal. Now, with the new diplexer, you can point the beam in the general >>> direction >>> >>> and still copy the bird. In most cases I had to turn the beam 90 degrees before I completely lost the downlink! Twisting the antenna to make polarization changes makes absolutely no difference now. This also attributes to the fact that now I'm copying the entire pass without >>> dropouts >>> >>> or fades. Makes sense. What I've regained over the lossy diplexer makes >>> up >>> >>> for any polarization differences, etc. for a better copiable signal. Next weekend I will have to try more passes and get a feel of how much >>> this >>> >>> system has changed. 73, Jeff WB3JFS Las Vegas, NV DM26 ___ Sent via amsat...@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 >>> >>> ___ >>> Sent via amsat...@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 >>> >>> >>> ___ >>> Sent via amsat...@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 >>> >>> >>> >>> >>> >>> >>> >>> No virus found in this incoming message. >>> Checked by AVG - www.avg.com >>> Version: 8.5.416 / Virus Database: 270.13.1
[amsat-bb] Re: AO-7 help
Not Hard Just Skill, Just like my other post about operating as a Novice in the days of only crystal control. You did not operate full duplex on 40 meters, yet we operated contests on one transmit freq and listened to the whole band for someone calling us. We all have just gotten incredibly lazy. Joe WB9SBD Andrew Glasbrenner wrote: >Glen Zook wrote: > > >>I haven't used AO-7 for some time (need to revise my antennas to do so >>again). But, back in the "goode olde dayes" (when the satellite first went >>into orbit) we didn't have any problems with Doppler. The accepted method >>was to leave the transmit frequency alone and keep one hand on the receiver >>to compensate for the frequency shift and send CW with the other hand (or >>hold the microphone for SSB). No one even thought of compensating for >>Doppler any other way. >> >>Of course at the time everyone used a separate receiver and transmitter (no >>transceivers) so you could keep the receiver active while transmitting. >>There were hundreds of QSOs made on each orbit and everyone had a "ball". >> >>Glen, K9STH >>AMSAT 239 / LM 463 >> >>Website: http://k9sth.com >> >> >> >The half-duplex part is what makes it hard. I ran from 1992 until about >2006 without computer tuning, although I followed the current AMSAT >protocol of tuning the higher of the two frequencies. You don't drift >into others as much that way. I've tried this all ways, and if you are >going to run half-duplex, life is much easier with CAT tuning. > >73, Drew KO4MA >___ >Sent via amsat...@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 > > > > > >No virus found in this incoming message. >Checked by AVG - www.avg.com >Version: 8.5.416 / Virus Database: 270.13.113/2396 - Release Date: 09/26/09 >05:51:00 > > > ___ Sent via amsat...@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
[amsat-bb] Re: AO-7 help
AMEN! Finally someone on this board, that also remembers what the big knob on the face of the radio is used for. Maybe it's a age thing of when you got into the hobby? Like when I got into this hobby when Novices were only allowed crystal control. It wasn't all that different from using the birds. You listened to your transmit freq. to see if it was clear. and threw out a CQ. THEN YOU TUNED THE VFO and I mean a LOT like up and down the whole band looking to hear your call. almost everyone was not by choice operated split back then. You could only afford so many crystals. I remember many times CQing on my 1 crystal for 40 meters 7.109 and find someone calling me at 7.127 or whatever freq. they happened to own. You had to listen to not only your own transmit freq. in case a general or someone with a VFO called you on freq., or if nothing heard started tuning around looking for someone off freq. It was not un common to call CQ then tune for a minute or so looking. and everyone knew this so if you were answering a CQ but way off freq. you made a long call like maybe up to a minute even to give the guy a chance to find you calling him. It just drives me insane to hear people complaining about a little doppler, turn the big knob DUH! Joe WB9SBD Glen Zook wrote: >I haven't used AO-7 for some time (need to revise my antennas to do so again). > But, back in the "goode olde dayes" (when the satellite first went into >orbit) we didn't have any problems with Doppler. The accepted method was to >leave the transmit frequency alone and keep one hand on the receiver to >compensate for the frequency shift and send CW with the other hand (or hold >the microphone for SSB). No one even thought of compensating for Doppler any >other way. > >Of course at the time everyone used a separate receiver and transmitter (no >transceivers) so you could keep the receiver active while transmitting. There >were hundreds of QSOs made on each orbit and everyone had a "ball". > >Glen, K9STH >AMSAT 239 / LM 463 > >Website: http://k9sth.com > > >--- On Sat, 9/26/09, Andrew Glasbrenner wrote: > >Those splits are only right when Doppler is zero. Other wise, you have around >+/-7 khz shift to deal with. It's really tough to work AO-7 half-duplex with >no Doppler tuning. REALLY tough. If you have a PC nearby, I'd recommend trying >to use SatPC32 to control the Doppler shift during the pass. CAT cables are >pretty cheap on Ebay, and really easy to set up with the 897. > >Also, since you are using gain antennas AND are half duplex, you should make >sure you keep the power output low, like 5 watts or so, since you can't hear >if you our overdriving the uplink and making the satellite FM for everyone. > > > >___ >Sent via amsat...@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 > > > > > >No virus found in this incoming message. >Checked by AVG - www.avg.com >Version: 8.5.416 / Virus Database: 270.13.113/2396 - Release Date: 09/26/09 >05:51:00 > > > ___ Sent via amsat...@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
[amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE
Hi Bruce and all, No problem. Actually, I wouldn't call it research as much as curiosity. Maybe the research will come later when developing something better. :) I know the antenna "works" but can it be made to perform better? The antenna itself is of great quality and workmanship, it's the diplexer that has been making me wonder if that is the weak spot. The Achilles heel of the system. OK on setting up the FT-817 using two coaxes. I've heard a number of others doing the same thing with great results. I would suggest doing what best suits the individuals needs and affordability. You be surprised what one can dream up when you plan it out and follow through with the design. 73, Jeff WB3JFS - Original Message - From: "Bruce Robertson" To: "Jeff Yanko" Cc: "AMSAT-BB" Sent: Friday, September 25, 2009 6:53 AM Subject: Re: [amsat-bb] Arrow antenna reconfiguration results - UPDATE Jeff -- I really appreciate you doing this research for us. Two additional ideas come to mind: 1. Those of us with FT-817s could configure its two RF ports to use different bands and connect the rig directly to the beam's antenna connectors, bypassing the duplexer. For this purpose, higher-quality bnc terminated cable would be useful. 2. If I'm correct, your replacement duplexer is rather larger than the one it is replacing. It would be a great topic for a Journal article if someone with the necessary equipment and expertise were to design a replacement with less loss. 73, Bruce VE9QRP On Fri, Sep 25, 2009 at 6:10 AM, Jeff Yanko wrote: > Hi all, > > A quick update to my new project to improving the Arrow antenna, > efficiency > wise. I wanted to see how well it would perform on gaining and losing > access during AOS and LOS. AO-27 is not a good choice since the timer is > turned on when it is well above the AOS horizon and it is switched off > before it reaches its LOS horizon. That leaves a dependable AO-51 to test > it out. > > With the last setup, the OEM diplexer provided by Arrow Antenna, I would > copy AO-51 about 3 minutes after AOS and lose it about 3 to 4 minutes > before > LOS. Not bad, but people were saying they worked the birds when they were > 1 > degree off of the horizon. I have some pine trees that could be an issue > but they are spaced far enough apart that I can work between them and I > also > have to deal with the McCollough Range to the SSE of me here in Las Vegas, > NV. Today, there were 2 passes of AO-51, one at 12 degrees elevation, the > other at 74 degrees. During both passes, I began to copy the downlink > about > a 1.25 minute after AOS. A considerable difference from 3 minutes. The > downlink also improved down to about minute before LOS. On the last pass I > worked KG6NUB at 0124z and LOS was 0125z and my downlink sounded fairly > good, though I was fighting desense. (That's another issue I need to > resolve.) Also, on both passes, I never once lost the downlink. No > dropouts or fades. I'm still amazed. > > Another issue I came across was how wide the beamwidth is of the Arrow > Antenna between the Arrow diplexer and the new diplexer. I was wondering > if > this was going to happen and it did. The reason that this happened was > with > the old diplexer, the signal attenuated so much that you had to be pointed > right smack dab on the bird, a few degrees off and you lost the signal. > Now, with the new diplexer, you can point the beam in the general > direction > and still copy the bird. In most cases I had to turn the beam 90 degrees > before I completely lost the downlink! Twisting the antenna to make > polarization changes makes absolutely no difference now. This also > attributes to the fact that now I'm copying the entire pass without > dropouts > or fades. Makes sense. What I've regained over the lossy diplexer makes up > for any polarization differences, etc. for a better copiable signal. > > Next weekend I will have to try more passes and get a feel of how much > this > system has changed. > > > 73, > > Jeff WB3JFS > Las Vegas, NV > DM26 > > > > > > > ___ > Sent via amsat...@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 > ___ Sent via amsat...@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
[amsat-bb] Re: AO-7 help
> > I use the translation table provided by AMSAT and the books.. > Have those programmed into the radio as splits.. > > LSB 432.XXX up and USB 145.XXX down . > ( mode B like this morning ) > I can hear PLENTY of QSO's. > I cannot make contact with anyone .. > > Those splits are only right when Doppler is zero. Other wise, you have around +/-7 khz shift to deal with. It's really tough to work AO-7 half-duplex with no Doppler tuning. REALLY tough. If you have a PC nearby, I'd recommend trying to use SatPC32 to control the Doppler shift during the pass. CAT cables are pretty cheap on Ebay, and really easy to set up with the 897. Also, since you are using gain antennas AND are half duplex, you should make sure you keep the power output low, like 5 watts or so, since you can't hear if you our overdriving the uplink and making the satellite FM for everyone. 73, Drew KO4MA ___ Sent via amsat...@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
[amsat-bb] objects nunber
What is the best guess on the object numbers on the last two group of cube sat launched recently? Thanks nick ___ Sent via amsat...@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
[amsat-bb] Re: AO-7 help
I haven't used AO-7 for some time (need to revise my antennas to do so again). But, back in the "goode olde dayes" (when the satellite first went into orbit) we didn't have any problems with Doppler. The accepted method was to leave the transmit frequency alone and keep one hand on the receiver to compensate for the frequency shift and send CW with the other hand (or hold the microphone for SSB). No one even thought of compensating for Doppler any other way. Of course at the time everyone used a separate receiver and transmitter (no transceivers) so you could keep the receiver active while transmitting. There were hundreds of QSOs made on each orbit and everyone had a "ball". Glen, K9STH AMSAT 239 / LM 463 Website: http://k9sth.com --- On Sat, 9/26/09, Andrew Glasbrenner wrote: Those splits are only right when Doppler is zero. Other wise, you have around +/-7 khz shift to deal with. It's really tough to work AO-7 half-duplex with no Doppler tuning. REALLY tough. If you have a PC nearby, I'd recommend trying to use SatPC32 to control the Doppler shift during the pass. CAT cables are pretty cheap on Ebay, and really easy to set up with the 897. Also, since you are using gain antennas AND are half duplex, you should make sure you keep the power output low, like 5 watts or so, since you can't hear if you our overdriving the uplink and making the satellite FM for everyone. ___ Sent via amsat...@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
[amsat-bb] Road Trip to Georgia (USA)
Hello All: We've have started out road trip vacation to the state of Georgia, and will be operating a various locations along the way and the return. Have no idea where we will stop, nor what grids, but will be set up for any of the 3 FM bird passes in the late afternoon and mornings. If you hear me on, give me a shout. I QSL 100% via direct or eQSL.cc. Hope to hear the calls working with HT and ELK, 73 de John W6ZKH now in DM65 ___ Sent via amsat...@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
[amsat-bb] Re: AO-7 help
On Sat, September 26, 2009 15:41, Randy wrote: > Hi all .. Hi Randy, > And tuned the receiver and cannot find my signal .. Here is an exmaple I used yesterdag RX 145.952.500 USB TX 432.143.950 LSB Give it a try. > > Randy - N2CUA 73's Jan - PE0SAT ___ Sent via amsat...@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
[amsat-bb] AO-7 help
Hi all .. I am having trouble working AO-07 .. Could just be newbie syndrome... But I truly Am not sure why I cant.. I have an FT-897D, 13 element 2 meter yagi and a 11 element 432 yagi. I can also effectively use the 2 meter yagi on 432.. Matches well And have used it on repeaters up to 60 miles away on 440.. I use the translation table provided by AMSAT and the books.. Have those programmed into the radio as splits.. LSB 432.XXX up and USB 145.XXX down . ( mode B like this morning ) I can hear PLENTY of QSO's. I cannot make contact with anyone .. I even got a little desperate and pulsed my handheld On the 432 antenna ( like CW dits ) ( harder to id that way LOL ) And tuned the receiver and cannot find my signal .. Tell me its somehting stupid and simple LOL v/r Baffled Randy - N2CUA ___ Sent via amsat...@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
[amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE
Yes, it is larger than the OEM supplied by Arrow, however, the loss is considerably less. I'll trade that any day! :) I connected it directly to the radio's input using a double male adaptor, male N connector to male PL-259. No coax between the radio and diplexer. 73, Jeff WB3JFS - Original Message - From: "James Duffey" To: "Bruce Robertson" Cc: "James Duffey" ; "Jeff Yanko" ; "AMSAT-BB" Sent: Friday, September 25, 2009 8:20 AM Subject: Re: [amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE > > On Sep 25, 2009, at 7:53 AM, Bruce Robertson wrote: > >> >> 2. If I'm correct, your replacement duplexer is rather larger than the >> one it is replacing. It would be a great topic for a Journal article >> if someone with the necessary equipment and expertise were to design a >> replacement with less loss. > > There is a diplexer that is easy to make and has good performance in this > article: > > < http://www.wa5vjb.com/references/Cheap%20Antennas-LEOs.pdf > > > As a bonus you get details on how to build your own handheld antenna for > LEO Satellites. - Duffey > ___ Sent via amsat...@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
[amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE
Hi Joe and all, I doubt if the Arrow diplexer has 20dB of loss. If it did, we'd never receive a signal! :) I believe somebody here on the -bb will be performing a test on the Arrow diplexer using a vector/network analyzer. It will be interesting to say the least. There were preliminary reports saying the device had a loss anywhere from 2.65 to 2.80dB. That's close enough to 3dB which is technically half power loss. Add the loss of a short piece of coax and it will certainly be pushed over the 3dB line. If I recall correctly, cross polarity is also a 3dB loss. I have noticed that when I rotate the antenna I might get a stronger downlink but I never lose it when I rotate it back. Before, when I would do that it would drop once I rotated in either direction from the peak signal. Basically what is going on is the lossy device is removed and replaced with a more efficient one, that extra net gain you just boosted now shows how the system on the antenna side of the diplexer is truly performing. I don't have an antenna analysis program to perform a test, but what does a 7 element 440 yagi pattern look like and what is its overall gain? What we need to do is break down the antenna configuration into 3 segments, see what their losses and gains are then combine them for the overall figure. The 3 segment would be the antenna, the diplexer and the coax. Each one will be tested individually to give an accurate number for each. 73, Jeff WB3JFS - Original Message - From: "Joe" To: "Gary "Joe" Mayfield" Cc: "'AMSAT-BB'" Sent: Friday, September 25, 2009 6:42 PM Subject: [amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE > as in the texts below, there is something else going on here. > > That Diplexor can not be all that bad. two reasons. > > How many db down is the front to side of that antenna? > > and I can not imaging someone would sell a diplexor that has greater > than 20 db of losses. > > because of the statement that how criticalpolarity was with the > original, and now the antenna has to be nearly 90 degrees cross > polarized to make it drop out uhh > > that close to 30 db, > > at least 20,, > > something else is going on here > > Gary "Joe" Mayfield wrote: > >>> >>>Another issue I came across was how wide the beamwidth is of the Arrow >>>Antenna between the Arrow diplexer and the new diplexer. I was wondering >>> >>> >>if >> >> >>>this was going to happen and it did. The reason that this happened was >>> >>> >>with >> >> >>>the old diplexer, the signal attenuated so much that you had to be >>>pointed >>>right smack dab on the bird, a few degrees off and you lost the signal. >>>Now, with the new diplexer, you can point the beam in the general >>> >>> >>direction >> >> >>>and still copy the bird. In most cases I had to turn the beam 90 degrees >>>before I completely lost the downlink! Twisting the antenna to make >>>polarization changes makes absolutely no difference now. This also >>>attributes to the fact that now I'm copying the entire pass without >>> >>> >>dropouts >> >> >>>or fades. Makes sense. What I've regained over the lossy diplexer makes >>> >>> >>up >> >> >>>for any polarization differences, etc. for a better copiable signal. >>> >>>Next weekend I will have to try more passes and get a feel of how much >>> >>> >>this >> >> >>>system has changed. >>> >>> >>>73, >>> >>>Jeff WB3JFS >>>Las Vegas, NV >>>DM26 >>> >>> >>> >>> >>> >>> >>>___ >>>Sent via amsat...@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 >>> >>> >>> >> >>___ >>Sent via amsat...@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 >> >> >>___ >>Sent via amsat...@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 >> >> >> >> >> >> >>No virus found in this incoming message. >>Checked by AVG - www.avg.com >>Version: 8.5.416 / Virus Database: 270.13.113/2395 - Release Date: >>09/25/09 17:52:00 >> >> >> > ___ > Sent via amsat...@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 > ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to s
