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Eagle Ground Station Pak
by sco＠sco-inc.com 08 Oct '06

08 Oct '06

Does anyone have any idea what will be in the proposed Eagle Ground Station package that has been proposed to be provided from Amsat? I assume this is for the digital transponder, correct? Might it be a patch antenna combo for S/C that would attach to a dish antenna? Would it include the upconverter and downconverter required to work S/C digital? Depending on what is included I might be interested in building such a kit/package for users. Les W4SCO

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Re: Old SATV Dish --pitch or sell?
by Bob Bruninga 08 Oct '06

08 Oct '06

>our school has an old five to seven foot SATV dish. >Question: is there a market for it? otherwise, it is >dumpster bound. I just found a bashed up 3 meter dish and only 1/4th of it, or one quadrant was still in good shape. I then realized that being only 4 feet across, it would make a much more manageable 802.11 "S" band dish for terrestrial work.! Keep the feed point at the same place, but you can still throw away 1/4th, 1/2 or 3/4ths of the original dish and only use what is convenient. In this case, only the 1/4th quadrant. Put your "S" band feed at the same old focal point but pointed at the center of what's left and now you have a perfectly good 4 foot or so OFFSET FEED large "S" band dish. And a cute thing is that it LOOKS like it is looking up at satellites (because of the top mounted offset feed) when in fact, it is now looking horizontal. So the fu ll size dish is nice, but usually too big to be manageable. But 1/4th of it still makes a great "S" band system... de WB4APR, Bob

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Microsat Telemetry data archive
by W4UPD 08 Oct '06

08 Oct '06

For those that maybe interest (and even if you're not), that URL below points to a group of directories containing telemetry data collected by those whose calls you see listed. This data was at the beginning of the life of the various Microsats (AO-16, LU-19, etc.) and even include AO013 and a couple of Fuji satellites. This data was collected and sent to me to allow for access later by the command stations and even some schools for review. I thought that some may be interested in reviewing the data contents and comparing with the more recent satellites now in use. ftp://bristor-assoc.com/pub/Amateur/Microsat/ This next URL contains some of the programs that were used to collect and/or review the captured telemetry data. The data is in the form of raw, ascii and WOD (Whole Orbit Data). Some of these programs and others are probably available at the AMSAT.ORG site as well. The data file names are basically date.type. Hopefully this will be useful to someone. This data will remain at this site for some time, so there is no hurry for it access to be removed. ftp://bristor-assoc.com/pub/Amateur/Satellite/ Regards, Reid Bristor, W4UPD

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Old SATV Dish --pitch or sell?
by Wade Grimes 08 Oct '06

08 Oct '06

our school has an old five to seven foot SATV dish....it is the metal mesh type. purchased in 1991 ??? Question: is there a market for it? otherwise, it is dumpster bound. we could use the money for our school ham radio club -- unless there is a mod we could do, and make use of it. and is the rotor of any value? (no longer controlled by the recvr) reply direct to k0mhp(a)arrl.net thanks, Wade

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Re: check out the amsat web site.
by John Champa 08 Oct '06

08 Oct '06

Alan, "Interesting..."! You are so modest, sir. This could change Amateur Radio forever! Eagle will be a communications resources like none other in the history of the service. 73, John Champa - K8OCL & AAR5AH/T (MARS) AMSAT Life Member 1069 >From: "Alan P. Biddle" <APBIDDLE(a)mailaps.org> >Reply-To: APBIDDLE(a)mailaps.org >To: <amsat-bb(a)amsat.org> >Subject: [amsat-bb] Re: check out the amsat web site. >Date: Sat, 7 Oct 2006 22:04:37 -0000 > >Interesting list of transmitters. > >============================ > > >AMSAT Board of Directors Approves Eagle Communications Payloads > >AMSAT's Board of Directors met on 5 October in San Francisco, CA and >approved the following Eagle communications payloads: > > * A SSB/CW (etc.) transponder with uplink on U-band and downlink on >V-band. System design has a goal that it be usable over 75% of the orbit by >an AO-13 or AO-40 capable ground station. > * A SSB/CW (etc.) transponder with uplink on L-band and downlink on >S1-band (2.4 Ghz). An AO-13 or AO-40 capable ground station will be able to >use this payload. > * A low rate text message system, like SMS. It will operate on >U/V-bands >and be usable over 75% of the orbit by a small terminal on the ground. > * These transponders will be implemented using Software Defined >Transponders (SDX). > >Eagle will also carry an advanced communications payload (ACP). Using >advanced signal processing and RF techniques, the ACP will allow: > > * Voice communications on S2-band (3.4 Ghz) uplink and C-band (5.8 >Ghz) >downlink using a single 60cm dish. The satellite antennas will be >electrically steered to reduce spin modulation and allow use over 75% of >the >orbit. > * An additional, fix-pointed, uplink will be available at L-band. This >L-band uplink will require a separate uplink antenna at the ground station. > * High rate data communications, such as streaming video, using a 2m >dish on S2/C bands. > * AMSAT will develop and make available an affordable ground segment >for >the ACP System. > >Additional information will be posted here in the near future. > >_______________________________________________ >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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HITSAT Oct 7
by Mike Rupprecht 07 Oct '06

07 Oct '06

AOS 0503 UTC Oct 07 (JN49lr) Hit1 jr8yjt Hit2 a071402362e Hit3 de494e4b4e49484b Hit4 c1d7d1e1 Hit1 jr8yjt Hit2 a0714062837 Hit3 384a50494d4a4b4a LOS 0511 UTC AOS 0636 UTC Oct 07 (JN49lr) Hit4 c1d7d2b8 Hit1 jr8yjt Hit2 a0715360929 Hit3 0d4c4e4b4e4..84b Hit4 c1d7d2e1 Hit1 jr8yjt Hit2 a071540032f Hit3 304d4e4b4e4b4a4d Hit4 c1d7.... LOS 0644 UTC AOS 1543 UTC Oct 07 (JN49lr) Hit2 a080041124a Hit3 4a4c50494e4b484c Hit4 c1d9d1e2 Hit1 jr8yjt Hit2 a0800450739 Hit3 394a4c4b4d49484a LOS 1549 UTC AOS 1715 UTC Oct 07 (JN49lr) Hit4 c1dad1e2 Hit1 jr8yjt Hit2 a080215202b Hit3 2c4950494e4b474a Hit4 c1dad1e2 Hit1 jr8yjt Hit2 a0802191625 Hit3 254c4f494.4c4a49 LOS 1723 UTC 73, Mike DK3WN

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InstantTrack and KCT
by Kyle Yoksh 07 Oct '06

07 Oct '06

Hi all, I've just received my KCT board, and interfaced it to my rotor boxes. Good news, the MOVENOW program commands my rotors perfectly! However, I'm having some trouble with the communication from InstantTrack to KCT. Will a current/former IT / KCT user please contact me off list? k0kn at amsat dot org. Thanks and 73, Kyle Yoksh KØKN Olathe, Kansas

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Re: AO51 APRS @9600 Bps
by Bob Bruninga 07 Oct '06

07 Oct '06

> has anyone had any success with APRS at 9k6 on AO51? > PCSAT2 is now removed from the ISS I'm looking to > experiment with something else. John, My understanding was that ECHO is operating with only 0.3W on the UHF digital downlink and that is 5 dB less power than even PCSAT2. But this is only because the present firmware on the satelite does not account for bursty packet operations. SO the transmitter is on 24/7 all around the world transmitting even when no one is in the footprint so it is an inefficient way to conserve power for digital which only has uses over about 10% of the Earth. From what I understand, it is on their TO-DO list to change the firmware so that the TX only is on when it has user demand. THis soiuld allow for drqastically imcreasing TX power. So we just have to wait until this is done, or hav a pretty good receive station. But all we need are a few receive stations to feed into the global APRS system and that is a big part of it. Bob, Wb4APR

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Re: S band interference solution
by John Champa 07 Oct '06

07 Oct '06

I really do get bored reading about all these threats to Mode S from WiFi, etc. NOT! These are 100 mW devices...maximum! That means they have to be relatively close to your QTH for you to hear them. 1. Pick up your old laptop, or borrow one. 2. Plug in a Linksys wireless PC card from Radio Shack. 3. Download the free NetStumbler shareware. 4. Find the source of the Wifi QRM. 5. Knock on his door and ask him to change his AP to a channel 7 - 11 (outside the Ham Band) 6. Reason: He's interfering with a licensed radio service (be nice!). 7. Return to your radio room and operate Mode S until LOS. This is child's play guys! These are consumer grade wireless devices, not super computers. Fixing such local QRM issues is easier than solving the old fashioned TVI problems. The most troublesome devices I have found , even to WiFi, are 2.4 GHz cordless phones. In that case the only solution I have found is to go next door and offer to buy him a replacement cordless phone of any type he would like EXCEPT one on 2.4 GHz. That is a cheap solution. They're usually not more than $79.95 while you probably have multiple Ks of $ invested in your satellite ground station. For a bunch of supposedly sophisticated wireless guys, you sure don't know beans about consumer grade wireless devices. That includes our wonderfully dedicated but pessimistic AMSAT satellite engineers! Now get on with the work, and get those birds into orbit! (HI). Vy 73, John Champa, K8OCL AMSAT Life Member 1069 >From: Luc Leblanc VE2DWE <lucleblanc6(a)videotron.ca> >To: AMSAT-BB(a)amsat.org >Subject: [amsat-bb] Re: S band interference solution >Date: Wed, 04 Oct 2006 23:51:30 -0400 > >On 4 Oct 2006 at 20:11, Tim Tapio wrote: > > > Lets see....intentionally jamming another radio service?? I think not. > > > > K4SHF > >See to who they can sell their things first and if you can get one of them >and still afford the >price you will be able to use it to experiment only. There is also some >2.4GHZ muticoupler with up >to 10 inputs who show up time to time on ebay if you feed them with 7 cheap >wi-fi router each of >them on a different channel and you can feed the output through an >amplifier and on an omni high >gain wi-fi antenna you will be able to experiment which one is making the >better job... > >The last one can be very disturbing that's why you will operate it for a >very short period for an >experimental purpose only! > >Could be someone can provide an exterminator kit oups i want to wrote an >experimenter kit for those >who are not satisfied playing with a variac and a microwave oven with no >door plus a door latch >disable in their attic. > >Fisherman are very patient as the fish is harder to cook with this method >but it's legal aside of >using an unsafe oven. > >Yes it is a JOKE don't ever try to do that its dangerous but you can share >your ideas and >experiences with us. The use of a former ao-40 antenna can provided some >added gain and >directivity. You will be surprised how far you can go between 2 points and >how quit the place >became when you will listen 2 weeks after. > >P.S. Is someone hit you on a side of your face turn your head to present >him the other side...amen. >Do what i tell not what i do a guy wearing a pair of sandals ever said. > >Signed.. The colonel Sanders in the Asterix village. > > >"-" >The medium is the message...The content is the audience...;) > >Luc Leblanc VE2DWE >WAC basic,CW,Phone,Satellite >Skype VE2DWE >www.qsl.net/ve2dwe >_______________________________________________ >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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HITSAT 1743 UTC
by Mike Rupprecht 06 Oct '06

06 Oct '06

AOS 1743 UTC Oct 06 (JN49lr) Hit3 394d514b4e4a494b Hit4 c1d2d1e2 Hit1 jr8yjt Hit2 a070244394b Hit3 4b4a4e49514c4a4c Hit4 8bd2d1e2 Hit1 jr8yjt Hit2 a0702483227 LOS 1751 UTC 73, Mike DK3WN

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