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Astron SS-30M schematic needed
by Joe Kononchik 15 Sep '06

15 Sep '06

I was wondering if anyone had a schematic for the Astron SS-30M switching power supply. 73 - Joe, KS1I ks1i(a)arrl.net

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Results of 2006 Election
by MARTHA SARAGOVITZ 15 Sep '06

15 Sep '06

The results of the 2006 AMSAT Election: Tom Clark, K3IO - 800 votes- Director Lou McFadin, W5DID - 652 votes- Director Bob McGwier, N4HY - 647 votes- Director Lee McLamb, KU4OS- 321 votes - First Alternate Paul Shuch, N6TX - 312 votes- Second Alternate Please note Directors serve a two year term. The total number of votes cast was 937. Martha Saragovitz AMSAT Manager

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Video working FO-29 from mobile
by Pedro EB4DKA 15 Sep '06

15 Sep '06

Hello list, I have put a video working the FO-29 from mobile in my website. The setup is: Uplink: Kenwood TM-255 (40W) + 1/4 wave VHF magmount whip. Downlink: Kenwood TH-F7E + CJU antenna + a pair of earbuds (there is a mp3 recorder between the F7E and the earbuds for the audio of the video). The pass was 39 degrees max. elevation for me in IM79DC. There was a little RF QRM from a near factory (at about 300 meters). The direct link to the video is http://rcfo.batcave.net/fo29movil.html but you can access it from my website www.eb4dka.tk in the videos section. Thank you very much Domenico I8CVS and Peter DL3JIN for helping me doing the video! Best 73 to all, Pedro EB4DKA http://www.eb4dka.tk http://miguel.servihosting.com/eb4dka eb4dka(a)amsat.org

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Microwave Information
by Reicher, James 15 Sep '06

15 Sep '06

I want to learn more about amateur operations on 1.2 GHz and the rest of the microwave bands. Could someone provide me with some links for some research and materials? 73 de N8AU, Jim in Raymore, MO

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Sat goodies for sale
by Tom D. 15 Sep '06

15 Sep '06

hi all i have 2 items for sale: 1: s band down converter, aidc-3731aa, in new condition. this unit was purchased from and modified by the fellow in Texas. i bought this 2 years ago or so and i have never used it. it has the correct comb filter and lo xtal for 144MHz if. also includes a power inserter for it. price is $85 shipped conus 48 2. paccomm spirit 2 tnc. this unit is used and works great. it also has the optional 38.8 modem filter and can do either 9600 or 38.8 baud. it comes with a manual copy and cable. i used this unit to copy Bob's pcsat2 telemetry. this is the standard model and the firmware is dated 94 and it has gps/aprs support. price is $135 shipped conus 48. sorry no outside us sales. thanks tom wa6osx g-sixty_three(a)juno.com ________________________________________________________________________ Try Juno Platinum for Free! Then, only $9.95/month! Unlimited Internet Access with 1GB of Email Storage. Visit http://www.juno.com/value to sign up today!

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Re: The Mode B tradition
by John Champa 15 Sep '06

15 Sep '06

John, The WiFi QRM you experienced on Mode S was probably a WiFi Channel 1 device. Some APs use that for a default channel, although most use Channel 6. Did you try using NetStumbler (free software) to determine location? At 100 mW nominal maximum RF power it must be a very local source. Many times you can just ask them to move to one of the channels 7 - 11 (simple software toggle), which in the US, is outside the 2.4 GHz Amateur Band. Just a suggestion. It's kind of like solving a TVI problem, but in reverse (HI). 73, John - K8OCL >From: "John B. Stephensen" <kd6ozh(a)comcast.net> >To: "i8cvs" <domenico.i8cvs(a)tin.it>, "george abbott" <ka1ajf(a)cox.net>, > "'Bill Ress'" <bill(a)hsmicrowave.com>, "G0MRF David Bowman" ><g0mrf(a)aol.com>, <brobertson(a)mta.ca>, "AMSAT-BB" ><amsat-bb(a)amsat.org> >Subject: [amsat-bb] Re: The Mode B tradition >Date: Fri, 15 Sep 2006 01:51:17 -0000 > >The European contacts are similar to my experience in the U.S. Are you >certain that the contacts outside Europe weren't cross-band -- one end UV >and the other US or LS? These would also have been completed on UV. > >My biggest concern about the S downlink is that it is becoming increasingly >harder to use in many parts of the world so that it becomes less and less >useful over the life of the Eagle satellites (2010-2030). When AO-13 was in >orbit I could use the S downlink all the time, but by the time AO-40 was in >orbit, I had S9 WiFi interference for hours at a time -- even with 3-foot >dish and feed. The dish was fairly deep (0.33 f/d) and the feed shielded so >sidelobes were low. > >Some in the U.K. say that we'd be better off flyng an S2 downlink >(3400-3410MHz). > >73, > >John >KD6OZH > >----- Original Message ----- >From: "i8cvs" <domenico.i8cvs(a)tin.it> >To: "John B. Stephensen" <kd6ozh(a)comcast.net>; "george abbott" ><ka1ajf(a)cox.net>; "'Bill Ress'" <bill(a)hsmicrowave.com>; "G0MRF David >Bowman" ><g0mrf(a)aol.com>; <brobertson(a)mta.ca>; "AMSAT-BB" <amsat-bb(a)amsat.org> >Sent: Friday, September 15, 2006 01:13 UTC >Subject: Re: [amsat-bb] Re: The Mode B tradition > > > > ----- Original Message ----- > > From: "John B. Stephensen" <kd6ozh(a)comcast.net> > > To: "george abbott" <ka1ajf(a)cox.net>; "'Bill Ress'" > > <bill(a)hsmicrowave.com>; > > <G0MRF(a)aol.com>; <brobertson(a)mta.ca>; <amsat-bb(a)amsat.org> > > Sent: Friday, September 15, 2006 1:19 AM > > Subject: [amsat-bb] Re: The Mode B tradition > > > >> You're right. P3E and Eagle will operate similarly to AO-10 and AO-13 >on > >> mode B and P3E is similar to AO-13 on mode S. I don't remember making a > >> single S-band contact outside the U.S. on AO-13. > > > > clipped > > > >> 73, > >> > >> John > >> KD6OZH > > > > > > Hi John, KD6OZH > > > > Just for record i have included belowe a list of OSCAR-13 > > operators with their call letters and antennas used for downlink > > Mode-S from 2400.711 to 2400.747 MHz during the lifetime > > of this glourious U/S transponder > > > > The power of OSCAR-13 mode-S was only 1,5 W pep and the > > satellite antenna was an helix with G=10 dBi and so EIRP=15 W > > pep > > > > In comparison the power of the S1 TX on AO40 was 50 W > > pep and the antenna was an helix with G=10 dBi and so > > EIRP=500 W pep > > The power of the next P3E will be 38 watt pep with a similar > > antenna. > > > > The mode-S transponder of OSCAR-13 was "hard limited",in > > other words no AGC was in it and so the 1,5 W pep > > available for all users was proportional to the uplink power. > > > > At epoch time of this list,uptodate by W4FJ on 14 jan 1994 > > it was very difficult if not impossible to find ready to operate > > preamplifiers/converters antennas/antenna feeds for 2.4 GHz > > and the most part of the equipments where necessarily hombrew > > by amateurs. > > > > In addition,at that time about 12 years ago,the best GaAsFET > > available at amateur price showed a noise figure not less than > > 1 dB at 2400 MHz > > > > Even though the list of users is very long. > > > > Please read it > > > > 73 de i8CVS Domenico > > > > ---------------------------------------------------------------- > > AMSAT OSCAR 13 mode "S" STATION LIST > > Originated by W4FJ last uptodate 14 Jan,' 94 > > ---------------------------------------------------------------- > > Sources: K0RZ, DB2OS, JR8XPV, JA6AUX, > > ON6UG, W6ABN, W4FJ > > ---------------------------------------------------------------- > > CALL NAME DOWNLINK ANTENNA > > 2400.7 MHz > > ---------------------------------------------------------------- > > DA1AF Bob 4 x 45 loop yagi > > DL1BEM Andy 1,2 m dish > > DL1FCU Hardy 1,0 m dish > > DJ1KM Rene ? > > DK1KQ Uwe 67 loop yagi > > DD1US Mat 19 loop yagi > > DF2BX Theo 3,0 m dish > > DK2UT Archim 0,6 m dish > > DK3AX Gerd 4 x 16 el yagi > > DG4IAF Archim 1,6 m dish > > DF4TA Armin ? > > DL4YCC Klaus 1,5 m dish > > DF5DP Bert 2 x 39 el yagi > > DL5EH Wilhelm ? > > DJ7FJ Joseph 1,2 m dish > > DC7KY Klaus 2,0 m dish > > DL8NL Hardy 2,7 m dish > > DC8UG Harold 1,5 m dish > > DL9GU Ed 1,5 m dish > > DL9GZ Egon 4 x 39 ele yagi > > DC9HR Hatman 1,2 m dish > > DJ9PC Peter 1,5 m dish > > > > EA4LE Toni 0,6 m dish helix fed > > > > F6CBC Jean 1,0 m dish > > F8HLG Georges 18 turn helix > > FM5AB Jean 1,2 m dish > > > > G1IRG Simon 1,5 m dish > > G2BFO David 1,2 m dish > > G3CDK Rod 1,2 m dish > > G3RUH James 66 cm dish helix fed > > G4EEO Phil 1,5 m dish > > GW3XYW Stuart 6,0 m dish > > > > HB9AQZ Hans 26 turn helix > > HB9MGI Ernst 1,5 m dish helix fed > > > > i1CDB Peter 67 loop yagi > > i2BEM Elio 1,2 m dish > > i3EEL Lodovico 1,2 m dish > > iN3HER Raimund 1,5 m dish > > iK3VZS Vinicio 1,0 m dish > > iN3WZF Joseph 1,5 m dish > > iW5ABE Alex 4 x 18 turn Helix > > i5MPK Peter 4,0 m dish > > i6CGE Alfio 1,2 m dish > > i6DRZ Mario 1,0 m dish helix fed > > i6PNN Amato 1,2 m dish > > i7LIT Rino 1,2 m dish > > i7UGO Ugo 1,0 m dish > > i8CVS Domenico 1,2 m dish helix fed > > > > JA1ANG Harry 16 turn helix > > JA1ANP Aky 12 turn helix > > JA1AOY Masaji 2.0 m dis > > JR1BDG Oishi 1.5 m dish helix fed > > JA1BLC Fumie 17 loop yag > > JL1CHX Toshido 3.0 m dish > > JA1GYT Tad 2 x 37 loop yagi > > JK1HIX Tom 2.0 m dish > > JH1LVN Masa 2 x 45 loop yagi > > JH1PEF Mak 2.4 m dish > > JA1QQN Kazu 36 loop yagi > > JA1SYK Hiro 1.2 m dish > > JA1UHY Hisa 3.0 m dish > > JR1WZI Ken 1.5 m dish > > JA2ORW Jin 24 turn helix > > 7N2RWX Tada 29 turn helix > > JH3EAD Takao ? > > JA3THL Taka 56 loop yagi > > JA3GCI ? 2 x 23 turn helix > > JA4AEP Ken 1.5 m dish > > JA4BLC Row 6.0 m dish > > JR4BRS Toshi 4.0 m dish > > JA4CMZ Iwata 3.0 m dish > > JA4GVA Shin 0.7 m dish > > JA4HZN Mata 2.0 m dish > > JA5LG Kiyo 2 x 50 loop yagi > > JA6AUX Masa 36 loop yagi > > JR6BLW Mori 4 x 55 loop yagi > > JA6CZH Yamada 1.2 m dish > > JE6DBI Yuu 1.6 m dish > > JA6ELW Sou 4 x 55 loop yagi > > JA6FTL ? 1.0 m dish > > JA7EC Shoji 2.0 m dish > > JH7JKW Nikio 4.0 m dish > > JA8ERE Terui 3.0 m dish > > JA8KCM Hiro 1.2 m dish > > JA8PL Masa 3.6 m dish > > JA8UJR Masa 2 x 37 loop yagi > > JR8XPV Tango 2 x 40 loop yagi > > > > OE3JIS Josef 45 loop yagi > > OE5BKL Al ? loop yagi > > OE9DGV Guntran 68 loop yagi > > ON4DY Bob 1.0 m dish > > ON6UG Freddy 2.0 m dish > > > > OZ8QI Freddy ? > > > > PE1MGS Juan ? > > PT9FH Tony 2.0 m dish helix fed > > > > SM7BCL Lars 2 x 45 loop yagi > > SM0SFV Stig 1.2 m dish > > > > SV3KH Nik 2.0 m dish > > SV5QR Panos 1.0 m dish helix fed > > > > VE1CKE Norm 1.2 m dish helix fed > > VE2LI George 1.2 m dish helix fed > > VE3GTF George 2 x 45 loop yagi > > VE3NPC Clare 1.2 m dish helix fed > > VE3VC Ken 1.0 m dish > > VE7BGG Cor 6.0 m dish > > VE7CLD Gunter 4.8 m dish > > VE7VHF Bill 2.4 m dish helix fed > > VE7VL Val 0.8 m dish helix fed > > VK4KZR Rod ? > > VK4ZQ Roy 2.8 m dish > > VK6BMD Bruce 1.0 m dish > > VK6ZAY Al ? > > VK6ZWF Allen ? > > > > N1AXB Larry 4 x 45 loop yagi > > W1NU Vic 2 x 45 loop yagi > > W1PEA Judd 2 x 45 loop yagi > > W1QJR Ken 0.6 m dish helix fed > > WA1QXR Ken 1.0 m dish helix fed > > W1YN Ed 0.6 m dish helix fed > > W1SNN Stirling 4 x 16 turn helices > > N1IQU Mack 8.0 m dish helix fed > > K2IYQ Steve 0.6 m dish helix fed > > N2MB Barry 2.4 m dish helix fed > > NQ2O Walt 2 x 45 loop yagi > > W2UHI Frank 1.0 m dish > > N3CEV Mike ? dish > > N3FLY Paul 45 loop yagi > > KA3HPQ Phil ? > > KK3K Jim 1.2 m dish helix fed > > W3PM Gene 1.2 m dish helix fed > > W3PRB Jonny 1.2 m dish > > W3QBK Stan 1.2 m dish helix fed > > W3TMZ Jack 0.6 m dish helix fed > > K3VDB Charlie 0.6 m dish helix fed > > KJ4BF Grady Conifer dish > > KC4CQR Jerry 3.0 m dish > > N4DTB Lee 4 x 45 loop yagi > > W4FJ Ted 1.5 m dish helix fed > > W4KSB Larry 2 x 45 loop yagi > > AB4NJ Dale 3.0 m dish > > N4NR Dennis ? > > N4LC Ken 4 x 45 loop yagi > > WD4O Bernice 4 x 45 loop yagi > > W4ODW Gene 3.0 m dish helix fed > > K4RZB Jim 4 x 45 loop yagi > > WA4VHF Chip 1.2 m dish helix fed > > N5BF Courtney 45 loop yagi > > W5GEL Bob 1.2 m dish helix fed > > WB5GQM Fred 0.6 m dish helix fed > > W5IU Keith 1.0 m dish helix fed > > K5RHR Dick 0.6 m dish helix fed > > WA5RTL "BW" ? > > W6ABN Stan 1.2 m dish helix fed > > W6CCY John 0.6 m dish helix fed > > AB6DT Bob ? loop yagi > > WB6GYD Eric 1.5 m dish > > NK6K Harold 4 x 45 loop yagi > > W6KAG Butch 3.0 m dish helix fed > > WB6LLO Dave 1.0 m dish helix fed > > N6OVP Dave ? > > W6YVO Dick ? > > AA7A Ed 0.6 m dish helix fed > > WA7ABP Lynn 1.2 m dish helix fed > > KB7CNN Bill 2 x 45 loop yagi > > W7IUV Larry 3.0 m dish helix fed > > KE7NR Don 2 x 45 loop yagi > > N7RYW Bill 2.0 m dish > > K7ZTM Pete 2 x 45 loop yagi > > N8AJD Steve 45 loop yagi > > K8TL Tom 1.2 m dish helix fed > > WA8WBP Ralph 1.2 m dish helix fed > > K8YAH Ron 2 x 45 loop yagi > > WJ9F Russ 2 x 45 loop yagi > > W9FMW John 2 x 45 loop yagi > > KA9LNV Ed 0.6 m dish helix fed > > WA9MTO Jack 2 x 45 loop yagi > > AB9V Mike 45 loop yagi > > W0DQY Smitty 4 x 45 loop yagi > > WD0E Jim 0.6 m dish helix fed > > W0HHE Al 2.0 m dish > > K0KE Eric 2.0 m dish > > N0LEF Stu 2 x 45 loop yagi > > KA0OOQ Jerry 4 x 45 loop yagi > > K0RR Lew 2 x 45 loop yagi > > K0RZ Bill 1.2 m dish helix fed > > K0VTY Joe 1.2 m dish helix fed > > N0WX Charlie 2 x 45 loop yagi > > > > ZL2ALP Paul 45 loop yagi > > > > ZS6JT Peter 0.6 m dish helix fed > > > > NOTE: > > This list of OSCAR-13 Mode-S operators was > > uptodated by Ted W4FJ on 14 january 1994 > > > > > > 73" de > > > > i8CVS Domenico > > > > > > > >_______________________________________________ >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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OSCAR-13 Mode-S User List ( Update 15 september 2006 )
by i8cvs 15 Sep '06

15 Sep '06

Hi , All Here is the last update 15 Sept 2006 of OSCAR-13 Mode-S user list. Just for record i have included a list of OSCAR-13 operators with their call letters and antennas used for downlink Mode-S from 2400.711 to 2400.747 MHz during the lifetime of this glourious U/S transponder The power of OSCAR-13 mode-S was only 1,5 W pep and the satellite antenna was an helix with G=10 dBi and so EIRP=15 W pep In comparison the power of S1 TX on AO40 was 50 W pep and the antenna was an helix with G=10 dBi and so EIRP=500 W pep i.e. 15 dB easyer than OSCAR-13 The power of the next P3E will be 38 watt pep with a similar antenna. The mode-S transponder of OSCAR-13 was "hard limited",in other words no AGC was in it and so the 1,5 W pep available for all users was proportional to the uplink power. At epoch time of this list, first originated by W4FJ on 14 jan 1994 it was very difficult if not impossible to find ready to operate preamplifiers/converters antennas/antenna feeds for 2.4 GHz and the most part of the equipments where necessarily hombrew by amateurs. In addition,at that time about 15 years ago,the best GaAsFET available at amateur price showed a noise figure not less than 1 dB at 2400 MHz Even though the list of users of OSCAR-13 Mode-S in the early 1990 -1994 is very long. Please read it If someting is wrong or missed please let me know 73 de i8CVS Domenico ---------------------------------------------------------------- AMSAT OSCAR 13 mode "S" STATION LIST Originated by W4FJ, 14 jan 1994 last update by i8CVS 15 September 2006 ( see foot note ) ---------------------------------------------------------------- Sources: K0RZ, DB2OS, JR8XPV, JA6AUX, ON6UG, W6ABN, W4FJ,G4IIO, G4KLX, F6BKI, W3IWI, DL1FLW, VP9MU,G4JY, K7RR, K0VTY ---------------------------------------------------------------- CALL NAME DOWNLINK ANTENNA 2400.7 MHz ---------------------------------------------------------------- CT1DMK Luis 1.5 m dish helix fed DA1AF Bob 4 x 45 loop yagi DL1BEM Andy 1,2 m dish DL1FCU Hardy 1,0 m dish DL1FLW Lawrence BBQ grill ant DJ1KM Rene 2 x 67 elements DK1KQ Uwe 67 loop yagi DD1US Mat 19 loop yagi DJ1YQ Franz 67 loop yagi DF2BX Theo 3,0 m dish DG2SBW Werner 0,6 m dish DL2AAW Peter 0,8 m dish DK2UT Archim 0,6 m dish DK3AX Gerd 4 x 16 el yagi DK3FF Ernst ? DG4IAF Archim 1,6 m dish DF4TA Armin 1,0 m dish helix fed DL4YCC Klaus 1,5 m dish DF5DP Bert 2 x 39 el yagi DL5EH Wilhelm ? DL6DBN Frank 0,5 m dish DJ7FJ Joseph 1,2 m dish DC7KY Klaus 2,0 m dish DL8NL Hardy 2,7 m dish DC8UG Harold 1,5 m dish DL9GU Ed 1,5 m dish DL9GZ Egon 4 x 39 ele yagi DC9HR Hatman 1,2 m dish DJ9PC Peter 1,5 m dish DJ0IX Ann 1,0 m dish EA3UM Magin ? EA4CMV ? ? EA4LE Toni 0,6 m dish helix fed EA9CMV ? ? ET3SID Sid ? F6CBC Jean 1,0 m dish F6HLG Georges 18 turn helix FM5AB Jean 1,2 m dish G0ONA/p Paul ? G0MRF Dave 1,0 m dish G1IRG Simon 1,5 m dish G2BFO David 1,2 m dish G2HIO Alan 1,2 m dish G3CDK Rod 1,2 m dish G3RUH James 66 cm dish helix fed G3WDG Charles 3,0 m dish G4IIO Phil 1,5 m dish G4JY Art 2,0 m dish G4KLX Jonathan 1.4 m dish helix fed GW3XYW Stuart 6,0 m dish HB9AQZ Hans 26 turn helix HB9IZ Bennie 0,6 m dish helix fed HB9MGI Ernst 1,5 m dish helix fed iW1AUP George ? i1CDB Peter 67 loop yagi i2BEM Elio 1,2 m dish i2IRH Pasquale ? i3EEL Lodovico 1,2 m dish iN3HER Raimund 1,5 m dish iK3VZS Vinicio 1,0 m dish iN3WZF Joseph 1,5 m dish iW5ABE Alex 4 x 18 turn Helix i5MPK Peter 4,0 m dish i5TDJ Piero 0,6 m offset dish helix fed i6CGE Alfio 1,2 m dish i6DRZ Mario 1,0 m dish helix fed i6PNN Amato 2,0 m dish i6TCR Frank ? i7LIT Rino 1,2 m dish i7UGO Ugo 1,0 m dish i8CVS Domenico 1,2 m dish helix fed JA1ANG Harry 16 turn helix JA1ANP Aky 12 turn helix JH1AOY Masaji 2.0 m dis JR1BDG Oishi 1.5 m dish helix fed JA1BLC Fumie 17 loop yag JL1CHX Toshido 3.0 m dish JA1GYT Tad 2 x 37 loop yagi JK1JVX Tokio ? JK1HIX Tom 2.0 m dish JK1DVX Tokio 2 x 52 loop yagi JH1LVN Masa 2 x 45 loop yagi JH1PEF Mak 2.4 m dish JA1QQN Kazu 36 loop yagi JA1SYK Hiro 1.2 m dish JA1UHY Hisa 3.0 m dish JR1WZI Ken 1.5 m dish JA2ORW Jin 24 turn helix JA2EC ? ? 7N2RWX Tada 29 turn helix JH3EAD Takao ? JA3GEP Mikio 55 loop yagi JA3THL Taka 56 loop yagi JA3GCI ? 2 x 23 turn helix JA4AEP Ken 1.5 m dish JA4BLC Yoshi 6.0 m dish JR4BRS Toshi 4.0 m dish JA4CMZ Iwata 3.0 m dish JA4GVA Shin 0.7 m dish JA4HZN Mata 2.0 m dish JA5LG Kiyo 2 x 50 loop yagi JA6AUX Masa 36 loop yagi JR6BLW Mori 4 x 55 loop yagi JA6CZH Yamada 1.2 m dish JE6DBI Yuu 1.6 m dish JA6ELW Sou 4 x 55 loop yagi JA6FTL ? 1.0 m dish JA7EC Shoji 2.0 m dish JH7JKW Nikio 4.0 m dish JA8ERE Terui 3.0 m dish JA8KCM Hiro 1.2 m dish JA8PL Masa 3.6 m dish JA8UJR Masa 2 x 37 loop yagi JR8XPV Tango 2 x 40 loop yagi LU2DDU Daniel 1,8 m dish helix fed LU4EBC Jorge 0,6 m dish helix fed OE1WRS Werner ? OE3JIS Josef 45 loop yagi OE5BKL Al ? loop yagi OE6UVG Armin 0,6 m dish helix fed OE9DGV Guntram 68 loop yagi OE1VKW Viktor 1,2 m dish helix fed ON4DY Bob 1.0 m dish ON6UG Freddy 2.0 m dish OK2AQK Mirek 0,6 m dish OZ8QI Fred ? PA0KT Jan 1,0 m dish PE1MGS Juan ? PT9FH Tony 2.0 m dish helix fed SM7BCL Lars 2 x 45 loop yagi SM0SFV Stig 1.2 m dish SV1OE Costas ? SV3KH Nik 2.0 m dish SV5QR Pannos 1.0 m dish helix fed TJ5RIE ? ? VE1CKE Norm 1.2 m dish helix fed VE2LI George 1.2 m dish helix fed VE3EGQ Syd SB-32 dish VE3FRH Robin 0.6 m dish VE3GTF George 2 x 45 loop yagi VE3NPC Clare 1.2 m dish helix fed VE3VC Ken 1.0 m dish VE7BGG Cor 6.0 m dish VE7CLD Gunter 4.8 m dish VE7CVG Rod 1,2 m dish VE7VHF Bill 2.4 m dish helix fed VE7VL Val 0.8 m dish helix fed VK2DAG Matt 2 x 3" BBQ grill VK4KZR Rod 0.6 m dish VK4ZQ Roy 2.8 m dish VK5DI Ray ? VK6BMD Bruce 1.0 m dish VK6ZAY Al ? VK6ZWF Allen ? N1AXB Larry 4 x 45 loop yagi W1NU Vic 2 x 45 loop yagi W1PEA Judd 2 x 45 loop yagi W1QJR Ken 0.6 m dish helix fed WA1QXR Ken 1.0 m dish helix fed W1YN Ed 0.6 m dish helix fed W1SNN Stirling 4 x 16 turn helices N1IQU Mark 8.0 m dish helix fed K2IYQ Steve 0.6 m dish helix fed N2MB Barry 2.4 m dish helix fed KB2MVN Frank SB-32 dish NQ2O Walt 2 x 45 loop yagi W2UHI Frank 1.0 m dish N3CEV Mike ? dish N3FLY Paul 45 loop yagi N3JNX Joe SB-32 dish KA3HPQ Bill SB-32 dish KA3HPR ? ? KI5NT ? ? KJ6UB ? ? KC3LZ Don 0,6 m dish helix fed KK3K Jim 1.2 m dish helix fed W3HQT Bill 0,6 m dish helix fed W3IWI Tom 36 loop yagi & 6 m dish W3PM Gene 1.2 m dish helix fed W3PRB Jonny 1.2 m dish W3QBK Stan 1.2 m dish helix fed W3STW Al 2 x 45 loop yagi W3TMZ Jack 0.6 m dish helix fed K3VDB Charlie 0.6 m dish helix fed AB4NJ Dale 3 m dish AC4T Dick 1,0 m dish helix fed KJ4BF Grady SB-32 dish KC4CQR Jerry 3.0 m dish KF4MX Jim ? N4DTB Lee 4 x 45 loop yagi N4EL Dick SB-32 dish W4AMI Bob SB-32 dish W4FJ Ted 1.5 m dish helix fed W4KSB Larry 2 x 45 loop yagi AB4NJ Dale 3.0 m dish N4NR Dennis 1.5 m dish helix feed N4LC Ken 4 x 45 loop yagi N4KTO Al SB-32 dish WD4O Bernie 4 x 52 loop yagi W4ODW Gene 3.0 m dish helix fed K4RZB Jim 4 x 45 loop yagi WA4VHF Chip 1.2 m dish helix fed N5BF Courtney 45 loop yagi N5BKL Jim SB-32 dish W5GEL Bob 1.2 m dish helix fed WB5GQM Fred 0.6 m dish helix fed W5IU Keith 1.0 m dish helix fed K5RHR Dick 0.6 m dish helix fed WA5RTL "BW" ? WA5ZIB Andy Andy Conifer dish W6ABN Stan 1.2 m dish helix fed KD6BRR Paul SB-32 dish W6CCY John 0.6 m dish helix fed AB6DT Bob ? loop yagi KF6EN Ed 0,6 m dish WB6GYD Eric 1.5 m dish NK6K Harold 4 x 45 loop yagi W6HDO Cliff 0.6 m dish helix fed W6KAG Butch 3.0 m dish helix fed WB6LLO Dave 1.0 m dish helix fed N6OVP Dave ? W6YVO Dick 1,2 m dish AA7A Ed 0.6 m dish helix fed NW7N Larry 0,6 m dish helix fed WA7ABP Lynn 1.2 m dish helix fed WA7PIB Carl Conifer dish KB7CNN Bill 2 x 45 loop yagi W7IUV Larry 3.0 m dish helix fed KE7NR Don 2 x 45 loop yagi N7RYW Bill 2.0 m dish N7TKO Bert 2 x 45 loop yagi K7ZTM Pete 2 x 45 loop yagi N8AJD Steve 45 loop yagi N8QFH SteYe 0,6 m dish helix fed K8TL Tom 1.2 m dish helix fed WA8WBP Ralph 1.2 m dish helix fed WW8T Greg SB-32 dish K8YAH Ron 2 x 45 loop yagi WJ9F Russ 2 x 45 loop yagi W9FMW John 2 x 45 loop yagi KA9LNV Ed 0.6 m dish helix fed WA9MTO Jack 2 x 45 loop yagi AB9V Mike 45 loop yagi W0DQY Smitty 4 x 45 loop yagi WD0E Jim 0.6 m dish helix fed W0HHE Al 2.0 m dish K0KE Eric 2.0 m dish N0LEF Stu 2 x 45 loop yagi KA0OOQ Jerry 4 x 45 loop yagi WB0QIY Doug 1.2 m dish WB0QOC Bill ? WB0RLY Joe 1,0 m dish WA0RGV Mark 4 x 45 loop yagi K0RR Lew 2 x 45 loop yagi K0RZ Bill 1.2 m dish helix fed K0VTY Joe 1.2 m dish helix fed N0WX Charlie 2 x 45 loop yagi VP2EEE ? ? VP9MU Paul 0.6 m dish PJ2CU ? ? ZL2ALP Paul 45 loop yagi ZP6XD Dean ? ZS6JT Peter 0.6 m dish helix fed A22BW Lothar ? 9K2RA ? ? NOTE: The above list has been updated by i8CVS on 15 september 2006 using the original OSCAR-13 Mode-S final issue of the list originated by Ted,W4FJ and supplied to i8CVS by Charlie G3WDG In addition,the above list has been amended and updated using information received over the time from: DL1FLW , DJ1KM ,F6BKI , G4IIO, G4KLX ,W3IWI VP9MU, G4JY, K7RR, OE1VKW, KA3HPQ, TA1D, DL6DBN, W5ACM(ex WA5ZIB), N4NR, VE3FRH K0VTY 73" de i8CVS Domenico

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San Diego Meeting report
by Jim Sanford 15 Sep '06

15 Sep '06

All: It has come to my attention that the San Diego meeting report has format problems. I've ZERO idea how the format got gooned. I have taken it offline for correction. I will advise, tomorrow or Saturday, when I've fixed the format and reloaded. Thanks & 73, Jim wb4gcs(a)asmat.org James A. Sanford, PE Amsat Eagle Project Manager

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The Eagle has died, my original point.
by Keith Bainbridge 15 Sep '06

15 Sep '06

As I started this thread perhaps I should finish it. My original point was the ratio of Satellite operators to experimenters must be about 50:1, so it makes far more sense to put up a bird that people will and more importantly " can " use than continually developing more and more sophisticated modes etc. The biggest thrill I've had in 25 years as a Ham is to work 67 countries and all continents in the 18 months or so that I discovered AO-40. I'd played with AO 7 etc back in 80-81 but this was " FUN " and thats the point I tried to make with my earlier post. I will donate to P3E as it will give me many options to use the gear I already have. There are no other options for me, living in Western Australia, Leo's are a complete waste of time and money, I can talk to myself on every pass on any satellite going over, no one else will be there to reply !! Well maybe the same 2 or 3 people. If Amsat NA must persue the Eagle option then please be prepared to revert back to AO-13 / AO-40 type birds when it fails. Can we finish this hread of mine now please? 73 Keith -- Keith Bainbridge VK6XH & VK6DXR Vice-President Northern Corridor Radio Group ( VK6ANC ) Amsat NA 35338 TenTec Omni VI, FlexRadio SDR 1000 , 5 Band Spiderbeam. Wireless Institute of Australia Previous calls include VK6DXC, VK6BRK,G6HHV, G0HEI & G1GHZ You're just jealous 'cos the voices only speak to me......... http:/www.qrz.com/vk6xh

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Re: The Mode B tradition
by G0MRF＠aol.com 15 Sep '06

15 Sep '06

In a message dated 9/14/2006 10:39:26 PM GMT Standard Time, bill(a)hsmicrowave.com writes: Hi David, Help me out with the 100,000 single point failures. Are you referring to the complexity of digital gates etc., in the DSP. Isn't P3E going with a digital IF or are they using an analog backup or vice versa? That's the SDX thingy isn't it? Regards...Bill - N6GHz Hello Bruce / Dom. I agree, the UV on Eagle will be apparently analog (ue) to the casual user. But be aware Bruce that it's not "primarily" a software driven transponder. It is in fact TOTALLY software driven. There is no linear IF, just DSP in the core. Or from another viewpoint 100,000 single point failures just waiting to happen. 73 David G0MRF Hello Bill. As I understand it, and perhaps I'm being a little over conservative in my concern, The Eagle design has shifted with respect to the caution of engineering that was shown just 14 months ago. My reference to 100,000 single point failures just waiting to happen was aimed at the UV SDX transponders total reliance on some very impressive but completely untried in space digital electronics. From the various messages on the BB in the past 2 weeks I understand that the line up of the transponder is: U band receiver to 10.7MHz - DSP based core processing the signal at baseband - Then an upconversion process that goes to 10.7MHz then 145MHz. This would appear to place the DSP it's software and its control electronics within a critical path which has large potential for a single failure. For example if one of the junctions in the DSP is 'hit', then the transponder stops working. - There is no plan B. OK, Yes it will be radiation tested, but as I pointed out in a previous mail, it will be launched at the peak of the sunspot cycle and orbital manouvers can go wrong leaving the satellite in the wrong part of the Van Allen belts. Let's look at our own history: AO-10 was placed in a high radiation environment and within a short period the IHU died. However, the RF components in the transponder continued to function and the satellite provided a limited service. Why did it continue to function? Well, I can only guess. But how about the possibility that RF devices with large junctions are less vunerable to radiation than sub 1 micron devices in LSI logic. In AO-7, the RF components are still working 20 years on. I have suggested that a simple signal path be designed around the SDX core. Signals appear to exist at 10.7MHz and adding just a few extra components would allow a malfunctioning SDX to be bypassed. What is really curious is that these fears have been voiced before and reassurances were given by Rick W2GPS. However for some reason, what seems to be a prudent, inexpensive and simple option has been dropped in favour of increased trust in radiation testing or by providing an equally vunerable duplicate DSP unit. Please see original question asked by Drew KO4MA with reply from W2GPS dated July 2005. ============================================================== Drew, See the Eagle specification document at _http://www.amsat.org/amsat-new/eagle/Eagle_Fall_2004.php_ (http://www.amsat.org/amsat-new/eagle/Eagle_Fall_2004.php) It says "To provide a safe backup system in case of a failure in the digital implementation of the linear transponders there will be two S-Band transmitters and either of them will be capable of being driven by the SDR driver or by a traditional analog linear driver. One or more of the receivers will also be capable of analog operation." Rick W2GPS AMSAT LM 2232 -----Original Message----- From: owner-Eagle(a)AMSAT.Org [_mailto:[email protected]_ (mailto:[email protected]) ] On Behalf Of Andrew Glasbrenner Sent: Sunday, July 24, 2005 7:45 PM To: Robert McGwier; Amsat-Bb Cc: Jim Sanford Subject: [eagle] Re: [amsat-bb] LONG and long overdue report Hi Bob, Thank you very much for the update on the Eagle transponder progress. The SDR based transponders sound very cutting edge and extremely adaptible to AMSAT's needs. I very much look forward to hearing them at the symposium in a few months. I'll have my satellite backpack station that was used for the Dayton demos, and will be glad to offer it up for demonstrating the new transponders. CC Rider is also very exciting and sure to open new realms of small stations and portable operation. As someone primarily looking in from a user/member point of view I would like to offer two comments. First, I'd hate to think we are going to hang our entire mission on just the SDR transponders. Wouldn't it be prudent to include at least a bare bones analog backup transponder? Please tell me this is the plan. Second, I'd like to encourage that software development not lag too far behind the hardware. I'm not a big fan of the idea of writing the code once it's in orbit. One does not have to look too far to find where AMSAT has oversold or overpromised features based on writing the software after launch. Please take these comments in the spirit with which they were offered, with only my desire to see Eagle as succesful as possible. 73 and thanks for your efforts, Drew KO4MA AMSAT #33438

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