Re: [amsat-bb] 432 10-13 -Element Antenna?
You could look at a 12 element ZL Special 1.1M long and gives 14dBd gain. In the UK they are made by Moonraker Steve G6UIM -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Jim Jerzycke Sent: 21 July 2014 05:38 To: l...@highnoonfilm.com; AMSAT Mailing List; Star-Com BB Subject: Re: [amsat-bb] 432 10-13 -Element Antenna? Hi, Les I've been using an M2 420-50-11 for satellite use for years now, and it works great. Not as much gain as the old KLM 30-element CP antenna I have, but then it's not 10' long either! Check it out at the M2 website: http://www.m2inc.com/index.php?ax=amateurpg=103 73, Jim KQ6EA On 07/21/2014 04:18 AM, Les Rayburn wrote: I'm limited to indoor antennas for all my amateur operations, including satellite operation. Right now, I'm running a 6 element 2 Meter yagi, along with the 7 element 432 beam (part of an arrow antenna). I have room to rotate a larger, and longer 432 antenna, and I'd love to have more gain. Most of the commercial antennas seem to be either small and portable, like the Arrow or much longer intended for weak signal operations. Is anyone aware of something in between, such as a 10 to 13 element antenna available commercially. No time or interest in homebrewing one right now. Even better, does anyone have one that is surplus to their needs that they'd like to sell? ___ Sent via AMSAT-BB@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-BB@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] Last Call for Digital Communications Conference Papers
July 14 is the deadline to submit papers for the proceedings of 2014 ARRL/TAPR Digital Communications Conferencehttp://www.tapr.org/dcc, September 5 - 7, in Austin, Texas. You do not have to attend the conference to have your paper included in the proceedings. Your paper on any technical topic relevant to amateur digital communications will be published as submitted and you will retain all rights. Please e-mail your submission no later than July 14 to Maty Weinberg, KB1EIB, ARRL Production Coordinator, at m...@arrl.org. Send text files and images separately and do not attach Zip files. Total of attachments cannot exceed 5 Mbytes per message. ___ Sent via AMSAT-BB@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
Re: [amsat-bb] LO-78 Decay Date
Did anyone hear the satellite on the NA pass a few minutes ago. I never heard it, but that could be due to incorrect keps. Steve W5IEM On Jun 30, 2014 11:26 AM, Paul Stoetzer n...@arrl.net wrote: I noticed that AMSAT-UK and the ARRL have both published posts that state that LO-78 will decay by the end of this week. That's probably based in part by information I posted on the BB from satflare.com, which predicts decay on July 2nd (http://www.satflare.com/track.asp?q=39571#TOP) However, the keps they are using appear to be incorrect. They are showing an altitude of just 226 km. Celestrak keps are showing an altitude of 317 km. Interestingly, the map view of the satellite's current position appears to be correct. SATVIEW's decay predictions seem to be based on the 317 km current altitude and show a predicted reentry of August 5th. (http://www.satview.org/decay.php) I think SATVIEW's prediction is more accurate. Anyone else have any input? 73, Paul, N8HM ___ Sent via AMSAT-BB@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-BB@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] DCC Call for Papers
Amateurs are invited to submit technical papers for presentation at the 33rd Annual ARRL and TAPR Digital Communications Conference to be held September 5-7 in Austin, Texas. These papers will also be published in the Conference Proceedings (you do not need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 15. Please send papers to: Maty Weinberg, ARRL, 225 Main St, Newington, CT 06111. Or you can make your submission via e-mail to: m...@arrl.orgmailto:m...@arrl.org. If you must e-mail Zip files, add ZIP FILE ATTACHED to your e-mail subject line. For more information about the conference, see the Tucson Amateur Packet Radio website,http://www.tapr.org/dcc or call 972- 671-8277. ___ Sent via AMSAT-BB@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: Faking a software TNC as hardware
Easy enough to do, I needed to do this for an app that expected a hardware TNC. So I asked the Author of Dire Wolf to include a KISS over IP option. All you need is HW VSP which is free for a single port version. Connect that to Dire Wolf via IP port 8001 http://www.hw-group.com/products/hw_vsp/index_en.html It works well. Steve G6UIM -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Stefan Wagener Sent: 05 March 2014 02:42 To: Kevin Cc: AMSAT BB Subject: [amsat-bb] Re: Faking a software TNC as hardware Try Dire-Wolf as an alternative: http://home.comcast.net/~wb2osz/site/ Stefan, VE4NSA On Tue, Mar 4, 2014 at 8:14 PM, Kevin n2...@yahoo.com wrote: Would that be a serial loopback interface as referenced in: http://www.soundcardpacket.org Kevin On March 4, 2014 8:46:49 PM EST, Clayton Coleman kayakfis...@gmail.com wrote: I am trying to use an application that expects a hardware TNC on traditional serial port. At this point in time I don't have a hardware TNC connected to my satellite station. I do have a traditional multimode TNC I could utilize but I prefer not. I am looking for a way, if possible, to configure a soft TNC application to pretend it is a traditional serial TNC. Essentially, the soft TNC would respond as a COMx,8N1 TNC just as if it were hardware. Is there a way to do this? 73 Clayton W5PFG ___ Sent via AMSAT-BB@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 from my Android phone with K-9 Mail. Please excuse my brevity. ___ Sent via AMSAT-BB@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-BB@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-BB@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: FUNCUBE-1/AO-73 reception issue
Hi Rick Am using HRD for tracking and Doppler, but for some reason I am not hearing the Satellite at all. Have checked the Antenna but perhaps a Tri band Co-linear antenna is not the best antenna to use. I have an interface between the radio and soundcard that I have also tested that, but I am not hearing the satellite let alone getting to decode, I did perhaps think I had got confused about the frequency and radio mode. Thanks very much for the reply though for the useful info Steve Daniels Amateur Radio Callsign G6UIM APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com _ From: Rick Walter [mailto:wb3...@gmail.com] Sent: 22 November 2013 22:18 To: Steve Daniels Cc: amsat-bb@AMSAT.Org Subject: Re: [amsat-bb] FUNCUBE-1/AO-73 reception issue Duh! Brain fade Steve. That pass is 2:36 UTC. Also the first things I mentioned I watch are on the left bottom for the screen. Rick On Fri, Nov 22, 2013 at 5:08 PM, Rick Walter wb3...@gmail.com wrote: Steve, I don't know if I can help. I am using a Kenwood TS 2000 X with an interface to go between the audio output in the back of the rig to the input of my HP laptop. I just have an M squared eggbeater without any pre-amp for receive. My tracking software is SatPC32 to correct for the doppler effect. I only touched up the downlink a couple of times on each of the two passes I recorded and uplinked to the warehouse (147 frames). I Load SatPC32, have it running, Load the dashboard software and choose to capture from the soundcard. The audio output of the RASCAL interface goes into the input to my sound card. I have the volume up at about 75%. Before the bird comes over the horizon, I see a wave on the Dashboard software that is the result of the noise coming from the receiver. I can actually hear the bird about 20-40 seconds before it comes over the horizon (very faint but hear the distinct tone). The real time screen starts filling with data as I see on the right bottom counting of the type of data received, the serial number, and to the right, the packets decoded and missed, plus the number of packets already sent to the warehouse and the number waiting to be sent. Don't know if that helps at all. Having taught Earth Science and Astronomy for 36 years, now retired, I not only like the linear transponders, but love to collect telemetry from the birds too. It is not available yet, but I can't wait until they allow us to download the whole earth orbit data from the warehouse. I want to watch the data change as the bird goes around the earth. I used to do that with UO-11 telemetry and use the data for labs using Excel's graphing functions in my Astronomy classes with my students. Did you try decoding the sample wave files they provide? They allow you to experiment getting the audio to your soundcard, then to the dashboard software. I'm looking forward to the 03:41 Z pass for me later tonight. Rick, WB3CSY in FN10 On Fri, Nov 22, 2013 at 3:43 PM, Steve Daniels st...@daniels270.eclipse.co.uk wrote: I don't know what I am doing wrong but so far I have failed to hear FUNCUBE let alone decode. I seem to have the correct keps as I see station near me uploading. Am using a radio not a dongle 145.935MHz USB mode is what I am using as settings. Is that correct or have I made a mistake Steve Daniels Amateur Radio Callsign G6UIM APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com ___ Sent via AMSAT-BB@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 from Rick's gmail account -- Sent from Rick's gmail account ___ Sent via AMSAT-BB@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: FUNCUBE-1/AO-73 reception issue
Maybe I should try satpc32 for tracking and Doppler, you have a private email on that subject. Using an FT-817 for receive. Perhaps my collinear is not great for high passes but really though I should be able to hear something, and by hear I mean I have the speaker on the radio turned on Thanks for taking the time to respond, it will probably be something stupid when I figure it out (most likely the operator) Steve Daniels Amateur Radio Callsign G6UIM APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com _ From: Rick Walter [mailto:wb3...@gmail.com] Sent: 22 November 2013 23:05 To: Steve Daniels Cc: amsat-bb@AMSAT.Org Subject: Re: [amsat-bb] FUNCUBE-1/AO-73 reception issue Ok Steve. I am listening to 145.935 MHz +/- doppler in the USB mode. The bird is using power output which is a little higher than originally planned but still lower that normal use in the future. It has a nice strong signal here. I would think you could hear it with a 1/4 wave whip or ground plane antenna on a high elevation pass. My eggbeater is only 10 feet off the ground with a large pin oak tree blocking to the south and my house blocking to the north. Hope you get to hear the bird. Let me know if I can help in any way. Rick On Fri, Nov 22, 2013 at 5:28 PM, Steve Daniels st...@daniels270.eclipse.co.uk wrote: Hi Rick Am using HRD for tracking and Doppler, but for some reason I am not hearing the Satellite at all. Have checked the Antenna but perhaps a Tri band Co-linear antenna is not the best antenna to use. I have an interface between the radio and soundcard that I have also tested that, but I am not hearing the satellite let alone getting to decode, I did perhaps think I had got confused about the frequency and radio mode. Thanks very much for the reply though for the useful info Steve Daniels Amateur Radio Callsign G6UIM APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com _ From: Rick Walter [mailto:wb3...@gmail.com] Sent: 22 November 2013 22:18 To: Steve Daniels Cc: amsat-bb@AMSAT.Org Subject: Re: [amsat-bb] FUNCUBE-1/AO-73 reception issue Duh! Brain fade Steve. That pass is 2:36 UTC. Also the first things I mentioned I watch are on the left bottom for the screen. Rick On Fri, Nov 22, 2013 at 5:08 PM, Rick Walter wb3...@gmail.com wrote: Steve, I don't know if I can help. I am using a Kenwood TS 2000 X with an interface to go between the audio output in the back of the rig to the input of my HP laptop. I just have an M squared eggbeater without any pre-amp for receive. My tracking software is SatPC32 to correct for the doppler effect. I only touched up the downlink a couple of times on each of the two passes I recorded and uplinked to the warehouse (147 frames). I Load SatPC32, have it running, Load the dashboard software and choose to capture from the soundcard. The audio output of the RASCAL interface goes into the input to my sound card. I have the volume up at about 75%. Before the bird comes over the horizon, I see a wave on the Dashboard software that is the result of the noise coming from the receiver. I can actually hear the bird about 20-40 seconds before it comes over the horizon (very faint but hear the distinct tone). The real time screen starts filling with data as I see on the right bottom counting of the type of data received, the serial number, and to the right, the packets decoded and missed, plus the number of packets already sent to the warehouse and the number waiting to be sent. Don't know if that helps at all. Having taught Earth Science and Astronomy for 36 years, now retired, I not only like the linear transponders, but love to collect telemetry from the birds too. It is not available yet, but I can't wait until they allow us to download the whole earth orbit data from the warehouse. I want to watch the data change as the bird goes around the earth. I used to do that with UO-11 telemetry and use the data for labs using Excel's graphing functions in my Astronomy classes with my students. Did you try decoding the sample wave files they provide? They allow you to experiment getting the audio to your soundcard, then to the dashboard software. I'm looking forward to the 03:41 Z pass for me later tonight. Rick, WB3CSY in FN10 On Fri, Nov 22, 2013 at 3:43 PM, Steve Daniels st...@daniels270.eclipse.co.uk wrote: I don't know what I am doing wrong but so far I have failed to hear FUNCUBE let alone decode. I seem to have the correct keps as I see station near me uploading. Am using a radio not a dongle 145.935MHz USB mode is what I am using as settings. Is that correct or have I made a mistake Steve Daniels Amateur Radio Callsign G6UIM APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite
[amsat-bb] Re: D STAR
*absolutely true* We've surrendered freedoms by using this. ICOM of course had no real understanding or appreciation of this (I've talked with higher-up managers at Dayton), so it's become something we have to live with. It does reek, however. --STeve Andre' wb8wsf en72 On 11/12/13 15:58, Rob wrote: If I can't duplicate the codec understand the codec ... improve the codec ... whether a ham developed it or not is irrelevant. On Tue, Nov 12, 2013 at 8:42 PM, Angelo Glorioso n5...@hotmail.com wrote: Last question. Do you know for a fact that the AMBE codecs was not developed by a ham radio operator for that company??? A lot of hams are in that business. 7 3 de Angelo - Original Message - From: Rob pabut...@gmail.com To: AMSAT-BB@amsat.org Sent: Tuesday, November 12, 2013 12:16 PM Subject: [amsat-bb] Re: D STAR An example of an enhancement to the radio art would be PSK31 for example. Created by an amateur radio operator used by amateur radio operators. An amazing technology for weak signal work. Multiple conversations tacking place in a single SSB channel. Don't misinterpret what I'm saying ... D-STAR is neat but if I (or someone smarter than me) can't fabricate it from core technologies it can't be fully understood or improved upon. Which is what this hobby is suppose to be about. On Tue, Nov 12, 2013 at 5:48 PM, Angelo Glorioso n5...@hotmail.com wrote: Sorry. I thought we were comparing apples with apples. PS: By the way, apple (big brother is watching you ) :-) - Original Message - From: Rob pabut...@gmail.com To: AMSAT-BB@amsat.org Sent: Tuesday, November 12, 2013 11:26 AM Subject: [amsat-bb] Re: D STAR I can do all that with my iphone which are the enhancements? On Tue, Nov 12, 2013 at 5:18 PM, Angelo Glorioso n5...@hotmail.com wrote: To help the believer :-) Either you have not used Dstar before or have not used it in a long time. Have your tried to send a picture with Dstar?? Have you chatted voice and text as the same time?? Have you tried to surf the web with DStar. Have you used DRats for Emergencies, trainings or other exercises ??? Just to mention a few things that add to the enhancement of the radio art!! 7 3 de Angelo - Original Message - From: Rob pabut...@gmail.com To: AMSAT-BB@amsat.org Sent: Tuesday, November 12, 2013 10:39 AM Subject: [amsat-bb] Re: D STAR To help the non beleiver.. Well I guess it official ... it's now become a religious argument. D-STAR is the fast-food of amateur radio (much the same way repeaters are ... but I digress) I'm not arguing the technical merits but it does not enhance the radio art ... it does not promote innovation ... Sure you can buy a radio ... plug it in program it or what ever you need to do to get on the net and talk to someone you've learned nothing and you've given nothing back. The spectrum we use is very valuable if we're not generating any value for what we've been entrusted with it's going to be sold off to the highest bidder. We need more of this - http://wc2fd.com/eaps/ On Mon, Nov 11, 2013 at 4:32 PM, luclebla...@videotron.ca wrote: On 11 Nov 2013 at 15:22, Gordon JC Pearce wrote: On Mon, Nov 11, 2013 at 08:46:24AM -0600, damon runion wrote: Well back in the days of AM and when SSB came out it was the same thinking then BUT what has happened to AM . Same thing with DSTAR it is growing and will grow . Thats what makes ham radio so much fun, there is something for everyone 73,s Damon But the difference there is that *anyone* can make an SSB rig. Only one manufacturer is allowed to make AMBE codecs, and they will only sell to a handful of approved radio manufacturers. It is illegal to make your own DStar radio, without buying the AMBE codec from DVSI. That sort of thing has no place in amateur radio. -- Gordonjcp MM0YEQ ___ Sent via AMSAT-BB@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 To help the non beleiver.. just read this: http://www.eham.net/articles/30174 And yes telephone and satellite phone are available but if one choose to use DSTAR it is relevant to discredit him? If you think something has no place im amateur radio just don't use it and let those who wants to use it enjoy one of the most reliable digital communication protocol available. Yes some will say DMR, MotoTRBO are better it's just to say competition is already present. The cost question. You can already interface a lot of recent HF transceiver to DSTAR for 700$ and much less if you are technicaly inclined.See below it's just an example and i'm not connected to their business. http://dstarradioclub-international.com/dv-adapters- --for-more-information--manual-links.html?success=1 ucfid
[amsat-bb] Re: D STAR
The unique feature of D-STAR for amateur use is that if a user doesn't like the price, or doesn't like the fact that ICOM is using an AMBE chip, or doesn't like ICOM because they capitalize every letter in their name, or because they think that the gubment is going to break down their door because they are encrypting their signal, or because they don't like anything new, with D-STAR the user simply doesn't have to use it. But, if a amateur doesn't like it there is an absolute, gubment-mandated requirement that he or she tell everyone that cares or doesn't as to why he or she doesn't like it and/or why they never will. Steve, W5IEM On Nov 11, 2013 3:44 AM, Gordon JC Pearce gordon...@gjcp.net wrote: On Mon, Nov 11, 2013 at 12:14:26AM -0600, George Henry wrote: There are very good reasons why no other amateur radio manufacturer will touch it. George, KA3HSW What, apart from encryption being illegal on the amateur bands? Without a radical redesign and a new codec, DStar is just not suitable for amateur use. Proprietary software runs counter to the whole principle of amateur radio, and in this case the encrypted proprietary codec is quite possibly not legal for amateur use. -- Gordonjcp MM0YEQ ___ Sent via AMSAT-BB@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-BB@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] Manual needed for Houston Tracker IV
Does anyone have a manual for the Houston Tracker IV track box? This vintage controller was used for C-band satellite pointing from a few years ago. Steve Bell KJ7OG -- I am using the free version of SPAMfighter. SPAMfighter has removed 49 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len Do you have a slow PC? Try a Free scan http://www.spamfighter.com/SLOW-PCfighter?cid=sigen ___ Sent via AMSAT-BB@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] Call for Papers: 2013 Digital Communications Conference
Amateurs are invited to submit papers for publication in the conference proceedings of the ARRL/TAPR Digital Communications Conference that is taking place September 20-22 in Seattle, WA. You do not have to attend the conference to submit a paper for consideration. Send papers by July 31 to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 . . . or by e-mail to m...@arrl.org Submissions will not be edited and authors will retain all rights. 73 . . . Steve Ford, WB8IMY QST Editor in Chief and Publications Manager ARRL -- the National Association for Amateur Radio tel 860-594-0287 sf...@arrl.org ___ Sent via AMSAT-BB@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] Call for Papers: 2013 Digital Communications Conference
Amateurs are invited to submit papers for publication in the conference proceedings of the ARRL/TAPR Digital Communications Conference that is taking place September 20-22 in Seattle, WA. You do not have to attend the conference to submit a paper for consideration. Send papers by July 31 to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 . . . or by e-mail to m...@arrl.org Submissions will not be edited and authors will retain all rights. 73 . . . Steve Ford, WB8IMY QST Editor in Chief and Publications Manager ARRL -- the National Association for Amateur Radio tel 860-594-0287 sf...@arrl.org ___ Sent via AMSAT-BB@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: The Ham Radio Bucket List
On 04/15/13 09:34, i8cvs wrote: On Sun, Apr 14, 2013 at 1:11 AM, Les Rayburn l...@highnoonfilm.com wrote: snip I wasted 35+ years on HFman, all the fun really is in the World Above 50 MHz! Thanks for helping to make a boys dreams come true at age 51! -- 73, Les Rayburn, N1LF 121 Mayfair Park Maylene, AL 35114 EM63nf Hi Les, N1LF I completely disagree with your statement that you wasted 35+years on HF because in my opinion the HF are fundamental to get technical and operational experience to come face to face in the future above 50 MHz. Please remember that your actual expertice above 50 MHz was born because of your previous 35+years activity on HF. Read please my similar Ham Radio history from the HF and up in QRZ.com http://www.qrz.com/db/I8CVS Best 73 de i8CVS Domenico (81 years old and 58 years of Ham Radio from HF to Microwave) A new religious war! I had never thought of this one. Let the acolytes gather... --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: Satellite hit by debris from weapon test
On 03/10/13 11:42, Trevor M5AKA wrote: CNN are reporting the BLITS satellite was rendered inoperable after being impacted by debris from a 2007 weapon test. http://edition.cnn.com/2013/03/09/tech/satellite-hit/index.html Wiki says the weapon test created 2,317 pieces of trackable size (golf ball size and larger) and an estimated 150,000 debris particles so there's clearly potential for more impacts. 73 Trevor M5AKA Thank you Trevor, for these. Most of the time I've heard of them before, but sometimes not. In the information age where we are bombarded by multiple firehoses, it is easy to miss something. Having relevant items pointed to here helps that, at least some. Emails are light and easy to deal with. The simple application of the delete key in your mailer makes them go away. In general 50% of the emails I get on lists are deleted fairly quickly, leaving the others for more reading. If people like Ted don't like them, any subject header that smells like a re-transmission should be automatically deleted, and if that really really isn't enough, mails from Trevor could simply be zapped on arrival. That can be automated (deleting) in mailers like Thunderbird. But, I hope no one does that because Trevor has done a lot. --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: APRS Balloon antenna tracking
As one of the current holders of the World Record I would like to wish everyone involved good luck with the flight. I used a big red bee 70cm aprs unit on the plane, very light weight. If you use APRSIS32 for tracking it has the ability to display a communication range circle based on altitude Steve Daniels G6UIM APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of David Julian Sent: 24 October 2012 01:34 To: Robert Bruninga; amsat-bb@amsat.org Subject: [amsat-bb] Re: APRS Balloon antenna tracking Sorry folks, should have added more information. The Engineering department at the University of Southern Indiana is sponsoring a balloon launch with a paper airplane payload that will be released in an attempt to break the world record for a released flight. . Here is the USI High Altitude Balloon website: https://sites.google.com/site/usihab2011/ The balloon with have one APRS xmtr, W9MOK; and the plane will have another APRS xmtr, W9MOK-2. Our main concern is the plane. Tracking it so we can recover it. The information that I have is that launch will be about 8am somewhere in Illinois. The launch site chosen to the landing site will be in So. Gibson or No. Vanderburgh counties in Indiana. Exact time and launch location will be determined based on mother natures whims Thanks//Dave WB9YIG From: Robert Bruninga bruni...@usna.edu To: David Julian ddjulia...@yahoo.com; amsat-bb@amsat.org Sent: Tuesday, October 23, 2012 8:54 AM Subject: RE: [amsat-bb] APRS Balloon antenna tracking And where on the planet might this local event be? A balloon can have a range of 400 miles or so. Lots of us can watch if we know what part of the planet this might be in... -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of David Julian Sent: Monday, October 22, 2012 7:59 PM To: amsat-bb@amsat.org Subject: [amsat-bb] APRS Balloon antenna tracking A local University is going to do a balloon launch and release a paper airplane this Saturday. they will have APRS on both the balloon and airplane with the goal to find both when they land. I won't be able to join the chase but just for fun I would like to use my satellite antenna array to track them. Is anyone aware of a program that will steer the antenna's based on received APRS data? I am using an LVB tracker and Yaesu 5400 setup and have SATPC32 and Nova for windows if there is some sort of an interface program. Thanks//Dave WB9YIG ___ Sent via AMSAT-BB@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-BB@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-BB@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: LEO to HEO
On 10/18/12 08:44, Joshua wrote: Morning folks, I'm a relatively new ham and started following amsat only a few months so forgive something of a novice question. The biggest trouble I see the community hitching a ride to a high orbit although low orbits seem to be easy to get. So my question is this, who says we can't launch a sat in LEO and design it to move itself up to a higher orbit? I mean if NASA can build probes capable of reaching mars, it stands to reason we can build a bird to move only a few thousand miles. Thanks, Joshua Abraham, KJ4VYR It absolutely could be done -- with the right amount of money. I'm not sure that a kick motor would ultimately be cheaper than a flight designed to get something into HEO, nor as safe. It's really all about money, several millions of little dollarettes... --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: F1 Telemetry Decoder
I found a way of using a software modem to send KISS to the decoder via a serial port emulator. Run this modem click activate APRS-SCS support (it only works with the default soundcard) http://www.tapr.org/~kb2scs/scs01.html Download the following Virtual serial port http://www.hw-group.com/products/hw_vsp/index_en.html install as standalone on the virtual Serial port tab select a free com port, ip address 127.0.0.1 and port 4000 run the decoder and connect to the port you setup. Hope that helps Steve Daniels G6UIM APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Mark L. Hammond Sent: 30 September 2012 17:30 To: Keith O'Brien; AMSAT-BB Subject: [amsat-bb] Re: F1 Telemetry Decoder Hi Keith, It's apparently setup to use hardware modems. This shack loves hardware TNCs :) You might be able to get AWGPE working if you can send KISS data out to a virtual com port...check out http://www.soundcardpacket.org/ In addition, Tim Pearson KB9VQF has written a http://www.pearsoncomputing.net/freeware.phpAGWPE Serial Loopback utility that creates virtual serial ports that will let you link AGWPE to any packet program that can link to a KISS-enabled TNC (AGWPE's sound card mode simulates a KISS TNC). 73, Mark N8MH At 09:04 AM 9/30/2012 -0700, Keith O'Brien wrote: The F1 Telemetry Decoder Manual in Section 5.2.3 Decode Data OBC2 *You should connect this program with your transceiver first. Not sure what they are looking for here. I would like to use AGW Packet Engine as my packet TNC. Anyone offer any guidance in how to configure APWPE to the F1 decoder program ? I also have MixW if that would work... Keith N4ZQ ___ Sent via AMSAT-BB@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-BB@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-BB@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: Launch Costs (was-re: AMSAT-BB Digest, Vol. 7, Issue 312)
I don't know why everyone thinks it is so expensive to send something to space. Here is a video of a couple of guys that sent some Natural Light beer into space with a weather balloon. Why can't we just get together with these guys and send up a satellite? http://www.youtube.com/watch?v=_00eZtsuJ9M Note: Before I get my inbox filled up with Yer an idiot! There's more to it than that!!! please understand that I know fully well that there is just a bit more to it to get a satellite into orbit than what the guys do in this video. It is still a well-produced video of about the last thing I'd think of to send up on a balloon. Steve, W5IEM *This message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any retention, dissemination, distribution, or copying the communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately and delete the email along with any and all attachments from your system* ___ Sent via AMSAT-BB@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] Final Call for Papers--2012 ARRL/TAPR Digital CommunicationsConference
Technical papers are solicited for presentation at the 31st Annual ARRL and TAPR Digital Communications Conference to be held September 21-23, 2012 in Atlanta, Georgia. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2012. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 ...or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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] Call for Papers--2012 ARRL/TAPR Digital Communications Conference
Technical papers are solicited for presentation at the 31st Annual ARRL and TAPR Digital Communications Conference to be held September 21-23 in Atlanta, Georgia. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper published in the Proceedings). The submission deadline is July 31. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 ...or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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] Space Track Beta Web site
Space Track are beta testing a new website. It includes an API for element downloads. http://beta.space-track.org look under the docs section Steve Daniels G6UIM ___ Sent via AMSAT-BB@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: European Lunar Lander - Call for Declarations
On 06/01/12 19:54, Daniel Schultz wrote: Keep in mind that any ham radio transponder on the moon will not be an easy sat. You will need an EME class station to work it. If we build a lunar transponder, we can expect to see many, many postings on Amsat-BB about how Amsat only cares about elite hams and is not interested in building satellites for the common ham. I'm not saying it wouldn't be fun to have a transponder on the moon, and we in the USA might even be able to help you build it if they get ITAR fixed in time, but we better put on the flame proof trousers when we announce the project to the masses. Dan Schultz N8FGV Are you sure about that, Dan? I'm hardly an expert on EME, still looking to get there, but based on numbers I worked with some time ago, even 500mW from the Moon should be copyable with a good radio, with a yagi and possibly a preamp. This is not to say that a random HT would work, but I don't think we're talking of the classic EME-capabile station. --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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] First Satellite QSO
I want to give a huge Thank You to all of the guys at the Dayton Hamvention for the information they shared at the AMSAT booth and the demonstrations. After a few unsuccessful tries I made my first QSO on SO-50 about 10 minutes ago. I only made one contact tonight, that being KC9TTR in Indiana, but I know that the first one is the hardest. I am thrilled right now, and I know that learning what I learned in Dayton put me ahead many, many hours. Thanks again, -- Steve May, W5IEM Amateur Extra - Georgetown, KY (520) 261-7847 - Cell Skype: USHorseman steve.w5...@gmail.com *This message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any retention, dissemination, distribution, or copying the communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately and delete the email along with any and all attachments from your system* ___ Sent via AMSAT-BB@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] HORYU-2 Status?
Is anyone aware of the current status of HORYU-2? We've been attempting to receive the telemetry at W1AW, but without success. It is possible that we are using the wrong Keps (we have located two different sets). 73 . . . Steve Ford, WB8IMY QST Editor / Publications Manager ARRL - The national association for Amateur Radio(tm) 225 Main Street Newington, CT 06111 (860) 594-0200 ___ Sent via AMSAT-BB@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: HORYU-2 Status?
We finally achieved success just a bit ago. Nice, strong CW. Thanks for your help, Ken. Not sure what we may have been doing wrong before. 73 . . . Steve Ford, WB8IMY QST Editor / Publications Manager ARRL - The national association for Amateur Radio(tm) 225 Main Street Newington, CT 06111 (860) 594-0200 -Original Message- From: Ken Swaggart [mailto:k.swagg...@charter.net] Sent: Thursday, May 24, 2012 1:56 PM To: Ford, Steve, WB8IMY; amsat-bb@amsat.org Subject: Re: [amsat-bb] HORYU-2 Status? It was transmitting CW telemetry yesterday. Object 38340 is Horyu-2 according to Space-Track.org, and they worked very well yesterday. 73, Ken, W7KKE -Original Message- From: Ford, Steve, WB8IMY Sent: Thursday, May 24, 2012 10:40 To: amsat-bb@amsat.org Subject: [amsat-bb] HORYU-2 Status? Is anyone aware of the current status of HORYU-2? We've been attempting to receive the telemetry at W1AW, but without success. It is possible that we are using the wrong Keps (we have located two different sets). 73 . . . Steve Ford, WB8IMY QST Editor / Publications Manager ARRL - The national association for Amateur Radio(tm) 225 Main Street Newington, CT 06111 (860) 594-0200 ___ Sent via AMSAT-BB@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-BB@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] Learning about AMSAT in Dayton
I have been interested in AMSAT operation for awhile but have not even began to put together a station for satellite work. I will be attending the Dayton Hamvention this weekend, and in doing so I am hoping to learn enough about satellite work to get on the air over the next few weeks. With the large collection of AMSAT experts in Dayton, my question is what the group would recommend to a newcomer to try to get out of Dayton in learning some satellite basics. Should I make sure to go to the forum? Are there going to be demonstrations on software and station setup? Should I mainly try to make in-person resource contacts? Mainly, where should I focus my efforts this weekend? I am hoping to learn as much as possible and hope to finally get involved in satellite operations in the next few months. Thanks in advance, Steve, W5IEM ___ Sent via AMSAT-BB@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] Call for Papers--2012 ARRL/TAPR Digital CommunicationsConference
Technical papers are solicited for presentation at the 31st Annual ARRL and TAPR Digital Communications Conference to be held September 21-23, 2012 in Atlanta, Georgia. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2012. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 ...or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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: 145.825 MHz APRS on Katy to Nanjing Balloon
Is the ISS currently working on 145.825? if not, and it seems it's just on 70cm at the moment can someone request it is turned back on for 2M Steve Daniels G6UIM Torbay Freecycle Moderator -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Michael Chen Sent: 11 February 2012 21:40 To: Trevor . Cc: amsat-bb Subject: [amsat-bb] Re: 145.825 MHz APRS on Katy to Nanjing Balloon Well, I live in Nanjing. It's interesting to read this. Michael Chen, BD5RV/4 AMSAT-China: http://www.camsat.cn --- Twitter: http://twitter.com/bd5rv Email: michael.bd...@gmail.com MSN: bd...@jsdxc.org Skype: michael-bd5rv On Thu, Feb 9, 2012 at 7:49 PM, Trevor . m5...@yahoo.co.uk wrote: The kt5tk-11 balloon will be using the ISS Digipeater frequency of 145.825 MHz while in mid-Atlantic on its journey from Texas to China. See http://www.uk.amsat.org/4505 Launch date 3pm CST Feb. 11 73 Trevor M5AKA ___ Sent via AMSAT-BB@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-BB@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-BB@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: Icom 451 questions
On 01/12/12 23:19, John Geiger wrote: A local friend here has an Icom 451A 70cm all mode which he might sell me. What is the typical selling price for these rigs? It is in good physical condition with the mic and power cord. Are there any typical problems that show up with these rigs as they age, that I should be looking out for? 73s John AA5JG ___ Sent via AMSAT-BB@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 During my quest for x75 Icom rigs, I was told a few times that the 471 did not have a service manual, and you had to use a 271 manual for it. Since I have not ever seen one, I tend to think that is true. I've only used a 471 once, but I have respect for it. The larger problem with it may be its age, and getting some of the specialty ICs could be hard. I seem to remember a few of them selling on ebay in the $200 area? --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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] ISS Soyuz rocket re entry
The recent launch to the ISS the Soyuz rocket comes back http://www.youtube.com/watch?v=QRY8hW2ya7E Video taken in Germany Steve Daniels G6UIM ___ Sent via AMSAT-BB@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: ARISSAT1
I heard voice just now on the UK pass Steve Daniels G6UIM Torbay Freecycle Moderator -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Joe Batty Sent: 21 December 2011 17:16 To: Amsat-BB Subject: [amsat-bb] ARISSAT1 ARISSAT1, The pass over the Pacific Northwest yesterday afternoon at 2320 was heard for several minutes. The anouncement and telemetry was heard. I can't do SSTV or read the telemetry and the signal was a tad weak but we heard the whole pass. 73 all, as I learn how to do this sat stuff Joe KT7E CN85mm ___ Sent via AMSAT-BB@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-BB@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: Coast-to-Coast Balloon Flight
Hi Bob The tracker was a bigredbee high power 2M unit, I used one on a balloon flight and it's now in my car as G6UIM-9 http://www.bigredbee.com/blgps_2mhp.htm Launch announcements here http://www.arhab.org/ARHABlaunchannouncements.html Most of the technical chat happened on the GPSL yahoo group http://groups.yahoo.com/group/GPSL you don't need to be running APRSIS32 but it makes using ANSRVR easier, if you are interested in Balloons I suggest joining the BALLOON group on ANSRVR that will give you automatic notification of Balloon launches the callsign and the location of the launch, and also notify you of Balloon burst. If you track a balloon using APRSIS32 you will also get the option of displaying the Balloon communication range circle, so you can see if you are in range. http://aprsisce.wikidot.com/doc:ansrvr I have suggested that the tracker software is modified to switch frequency and path based on longitude. 144.390MHz in the states, 145.825MHz path ARISS over ocean, and then 144.800MHz over Europe If lucky you then stand a chance of getting a report via ISS or PCSAT whilst out of range of land based stations. And APRSIS32 also includes the ability to track satellites Steve Daniels G6UIM -Original Message- From: aprssig-boun...@tapr.org [mailto:aprssig-boun...@tapr.org] On Behalf Of Bob Bruninga Sent: 14 December 2011 21:08 To: 'Nick' Cc: 'TAPR APRS Mailing List'; amsat-bb@amsat.org Subject: Re: [aprssig] Coast-to-Coast Balloon Flight This transcontinential and trans-Atlantic Balloon mission was fantastic! But in reviewing all the hundreds of emails and minute-by-minute tracking excitement, I just went back to read about the balloon itself, and can find nothing. The original post referred to the California Near SpaCe Project as being the owners. http://californianearspaceproject.com/ But in reviewing all the emails, I can find no other reference to WHO launched it and what it is. Further, going to that site has NO NEWS about this mission, other than a link to APRS.FI which we are all using to track it. So what gives? Are there no pictures of the launch, or who owns it? Or did I just miss the memo... Bob, WB4APR ___ aprssig mailing list aprs...@tapr.org https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig ___ Sent via AMSAT-BB@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: Gibraltar Monitoring for 144.39 balloon
M0XSD caught a packet from PCSAT-1 earlier today on 144.390 which confused us for a bit. I have over the last couple of days got APRS from the UK into NE North America via PCSAT-1 Stations that received me AA1XD,VA2CMQ,V01BIL and VE2RIN I did suggest to the balloon ops to put a switchable by longitude tracker in future so 144.390, switching to 145.825 mid atlantic and 145.800 when near Europe. But they seem to prefer using things like the Iridium commercial system. Which to my mind is a shame How cool would it have been to have got a transatlantic balloon flight, picked up by the ISS and PCSAT-1 and digipeated Steve Daniels G6UIM -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Bob Bruninga Sent: 13 December 2011 22:58 To: amsat-bb@amsat.org; 'TAPR APRS Mailing List' Subject: [amsat-bb] Gibraltar Monitoring for 144.39 balloon While everyone in Southern Europe and Northern Africa is listening for the Transatlantic Balloon, K6RPT-11 on 144.39, I should also offer that you might hear (during mid-day only) a possible packet from W3ADO-1 too. PCSAT-1 has a downlink on 144.39 that is usually never heard in the USA due to QRM, but it might possibly be heard in Europe where there should be no other packets on that frequency. But remember, that PCSAT can ONLY be heard during rare alignment of its best solar panel to the sun, and usually around mid-day. All the excitement about K6RPT-11 landfall will be at night, so there will be nothing heard of PCSAT (using the callsign of W3ADO-11) until possibly mid-morning (if at all). If PCSAT does come alive, you will hear attempted occasional packets at both 1200 and 9600 baud, but almost always they are not decodable because there is not enough battery power to complete even the full duration of most 1 second packets.. But I just thought I would keep everyone informed in case a rare packet popped up on 144.39 in a quiet area. I also put out an object named max-rng? where I think will be the maximum receive range of the Azores stations based on the range when the started hearing it. This object is NNW of Funchal. And I see the track is starting to turn slightly northward, improving our chances of a Portugal reception! Bob, Wb4APR ___ Sent via AMSAT-BB@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-BB@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: Fast1
The satellite has been confirmed working by a member of the aprsisce yahoo group. Uplink 145.825MHz and downlink of 437.345MHz and an APRS path of FAST1 That was at 2011-12-08 00:35 Steve Daniels G6UIM -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Tom Lubbers K8TL Sent: 08 December 2011 15:09 To: amsat-bb@amsat.org Subject: [amsat-bb] Fast1 Has anyone had any positive results?? I have beaconed with 1200 and 9600, nothing. After the 0330Z pass did copy RS0ISS on the same frequency pair, boy was my element set off!! Happy Holidays Tom K8TL ___ Sent via AMSAT-BB@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-BB@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: satellite radios
On 11/28/11 16:48, Jim White wrote: I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com Why limit yourself to current radios? The Icom 910 isn't made now but there are a lot of them around. The much older IC-275/IC-475 are cheaper still but give great performance. Harder to get, but I'll bet with a little luck you could get a pair of them for about the same price as a 910H. Another thing to think of is an Elecraft with their 2m/70cm transverters. The Flex 5000 with their 2m/70cm board would make a fantastic rig, albeit at a price (3500 ish?) but is in the neighborhood of the 9100. The IC-290/IC-490 are older ssb rigs, but they'd work pretty well, too. A few thoughts... --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: OSCAR Acronym?
On 11/12/11 21:49, Clint Bradford wrote: ... OSCAR stands for Orbital Satellite Carrying Amateur Radio ... Why was it changed to OrbitING Satellite Carrying Amateur Radio? Did Orbital just sound too geeky for the masses? YES - the early citations from the 1960s had it as Orbital. WHO changed it to Orbiting ??? I don't think it was changed so much as someone used a different word. The words orbital and orbiting are very close to each other. So close that I'll bet most people would not readily discern the difference. I learned it with orbital. I'd probably use that if talking with people, but hardly think that orbiting is bad. So use either. Orbital is better--or more historically accurate-- but not worth fights over (not implying you were thinking that). --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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] APRS satellite prediction
Those of you with APRS capability can query a system to get the next satellite pass for a specific satellite, the idea being for those with APRS capable radios, to get information on an upcoming satellite pass and information during the pass. The reply format is designed to be short and to the point to maximise the chances of an RF station receiving the information. More info here http://aprsisce.wikidot.com/doc:satsrv Feedback welcome Steve Daniels G6UIM ___ Sent via AMSAT-BB@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: KickSat - a personal spacecraft of your own in space
On 10/17/11 15:23, William Leijenaar wrote: Hi AMSATs, I really wonder if this ever can and will be launched. AMSAT started with eperimental communication systems on the early oscars, and grown into highly complex satellites like AO-40, which was a real achievement for ham radio amateurs. However recent years there is a big trend on CubeSats, of which most are bleep-sats as they only send digital data (as cheap downlink ?). Luckily not all CubeSats are like that :o) At least these CubeSats are under some kind of control, and don't survive very long or can be switched off to minimize RF polution. When I see the idea of 100 chipsats that will all send digital RF signals I wonder where amateur satellite hobby will go into. I see these ChipSats more like RF polution and I believe you can better put your money and effort in designing a real communication satellite. I wonder what is the mission of these 100 chips ? (commercial ? publicity ?) Is there any technology thing we learn from this ? 73 de PE1RAH William Leijenaar William, I have wondered about this, too. I have come to think of these as seeds. Seeds that plant the idea of satellites in the heads of people and make them want larger, better (heo) systems. They won't last that long, so the idea of RF pollution isn't really there. And, if the sat sub-band can have a section devoted to these cube sats such that they aren't everywhere, even better. The more people that get a taste of satellites, the better. --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: Seriously Get Over It!
On 08/21/11 18:56, Kevin Deane wrote: Enough with the friggin ARISSAT-1 reports, gee I heard it too. Post your reports here http://oscar.dcarr.org/ I mean really . Kevin KF7MYK Whats wrong with that? Just hit your delete key when you see arissat and report. --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: ASISSAT-1 Returning to ISS
Looks like an antenna is possibly missing, I could see only one. And they have discussed that Steve Daniels G6UIM Torbay Freecycle Moderator -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Clint Bradford Sent: 03 August 2011 16:28 To: AMSAT BB Subject: [amsat-bb] ASISSAT-1 Returning to ISS Aborted deployment? Taking back to ISS 8:27AM PDT. Clint Bradford clintbradf...@mac.com ___ Sent via AMSAT-BB@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-BB@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: Crew handleing of ARISSat-1
On 08/03/11 12:10, Andy Kellner wrote: Is it just me, or did it look that crew did handle the satellite extremely unprofessional ? The removal of the Solar Array covers was pretty uncoordinated. They basically just ripped them off. Once outside they let the satellite bounce around like a basketball. For several minutes the satellite was just left to his own devices dangling from a teather, hitting the station all over the place, while the Astronauts try to position themselves. Then they pulled it in and flipped the switches without any coordination with the ground and apparently no regards of the order the switches are supposed to be flipped. He then described the LED's he was seeing, and it was pretty apparent that he didn't knew how it was _supposed_ to be look like. This became even more apparent when they discussed how many antennas are actually supposed to be attached to the satellite. One said : I was here 3 months earlier and there was only one. Is that the way to check that the device is in a correct configuration ? Just to the end, when the decision has been made not to deploy, somebody at the ground warned them to be careful not to break any solar arrays. IMHO it is a miracle that the solar arrays are still intact, and I would not be surprised if they broke of the second antenna because of careless handling. I understand that it must be very difficult to do all this is space in a bulky space-suit. But nevertheless this is a Satellite which is fragile and needs the be handled carefully. There are procedures to follow and checks to make before the sat is deployed. If it would have come to the crew, they would have just pushed it out and be done with it. This is all financed by donations and build by volunteers. Many people put a lot of effort into this. Its not that we can just build and launch another one, if they screw it up. I think its simply unexcusable that the correct configuration of the satellite has not been confirmed even before the spacewalk has started. Very disappointing. Andreas Kellner - VK4FHAW I think the reality of this is that activities like this need a champion on board who is truly enthusiastic about this, as opposed to another thing that ground control wants. I do not know any of the history or politics behind this. I could see it being that ham stuff onboard being pushed more by Americans, and there has been some kind of subtle shift in things now that the Shuttle is no more? It's rather like getting time on Hubble. I once talked with someone who'd done observations with it, and there was a lot of jossling over who did what, when. I am sorry to hear of the problems that happened. I suppose this is a good lesson for kids, that nothing in space should be taken for granted. This failed to be deployed once before? So a lesson to learn. --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: Three Words ...
As I think on this more, this is classic diplomacy in action. We, the ham community are going to need to do a polite dance around issues like roughness, etc. The answer about refunding is that no one will. If we crab loudly enough, it will not be possible to do more things like this. IF we paid full freight, then yes we'd have more of a 'right', but I'll bet that entities who have experiments done have some sort of clause in their agreement which indemnifies the ISS if things go wrong. The effort for this can't be less than $500,000 if you totaled it up. Space is still a very experimental workplace. ...How long did the various US astronauts train for Hubble missions? I'm not excusing rough or really careless handing, but things happen. --STeve Andre' wb8wsf en72 On 08/03/11 17:15, Michael Schulz wrote: So let me play devils advocate here for a second or three. When I was watching the stream, it sure looked like they didn't really give a rats ass about the satellite. The fact that these spacewalks don't occur every day tells me that there's some effort behind them. So how can it be that the folks responsible did not have their act together and check something truly obvious like .. uhm .. an antenna? I mean it's not like we're talking about a software bug that only could've been uncovered after it was all done. No, we're talking about an external, visible and physical thing. Now here's the rub. If AMSAT paid for it (to which degree and what percentage doesn't really matter) and the satellite does not have the desired and expected (and paid for) functionality because either it was damaged during the deployment or before (also doesn't really matter) who will refund AMSAT? Even more important what's the follow up to this? I sure did not get the impression that it was a well coordinated mission. The communication between the two seemed a bit .. well let's say unprofessional. Cheers, Mike K5TRI On Aug 3, 2011, at 4:06 PM, Andy Kellner wrote: No .. Linear .. Transponder ! Thank you very much Alexander Samokutyaev, Sergei Volkov and Roscosmos for a job well done. VK4FHAW ___ Sent via AMSAT-BB@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: OMG
On 08/03/11 19:31, Kevin Deane wrote: I am ashamed, even though the rookie ruskies broke it, the whole battery thing, everything about this to me is just embarrassing, pathetic actually... Kevin KF7MYK Why, Kevin? Things get messed up all the time. Suitsat had problems, but still caused a stirr. Hubble went up with a screwed up mirror, but it was fix. The second ALSEP package on the moon was at least mostly destroyed when an astronaut stumbled and ripped out the ribbon cable connecting parts together. Things Happen. It isn't pathetic, it just happens. Could things be improved? Absolutely! But consider this: where would the ISS be if it was run the way the US congress has been acting lately? At the bottom of an ocean, I'd say... --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: ISS Views STS-135 Re-entry
On 07/25/11 19:04, Vince Fiscus, KB7ADL wrote: At 05:38 PM 7/25/2011 -0400, you wrote: On 07/25/11 14:27, Clint Bradford wrote: NASA PHOTO - http://www.nasa.gov/images/content/573236main_iss028e018218_full.jpg This doesn't make any sense to me. It looks like a launch, not a descent. If the shuttle went down at that angle it would be toast. I think they got their captions wrong? --STeve I thought that too until I took another look at it. This is a two dimensional view of three dimensional space, so things in the photo might give a different impression than what is described by it. The decent only looks step because the earth is a sphere and the orbiter's track in this view is away from the ISS. 73 KB7ADL I'm struggling to 'get' this. It's certainly an interesting optical illusion, or whatever this kind of misleading effect is... Thanks, I'll ponder this! --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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] Call for Papers--2011 ARRL/TAPR Digital CommunicationsConference
Technical papers are solicited for presentation at the 30th Annual ARRL and TAPR Digital Communications Conference to be held September 16-18, 2011 in Baltimore, Maryland. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2011. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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: FD Mess
Well, is IS a contest, no matter what the ARRL says. People see it as such. My first FD before I was a ham, looked like a contest to me and it was only later, reading all the ARRL books I could get ahold of that I realized it really wasn't one. All contests where you go outside are test runs for emergency stuff. Our club in Ann Arbor MI (Arrow Communication Association) does the summer vhf+ contests outside (6m-1296) and those have been a great way to figure out ways of doing stuff. I would argue that the ARRL needs to change the way they talk, and offer FD as both a contest and exercise in communications, and speak of the exercise opportunities at the other contests, especially those of rovers. --STeve Andre' wb8wsf en72 On 06/27/11 14:21, Nigel Gunn wrote: A bigger FD problem is that FD is advertised as a chance to demonstrate your emergency comms ability to Joe Public. FD is NOT a contest so why are points and bonuses involved at all? On 27/06/11 19:13, Bill Acito W1PA wrote: I think we have to let go of the mantra that “any use of the bandwidth is good use” with respect to “encouraging more satellite activity”. Wasn’t that the original intent of the “100 point bonus” items? To encourage specific activities – traffic handling, promotion, emergency power, etc. ___ Sent via AMSAT-BB@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: FD Mess
Me, I'm recovering from bad sunburn. I look like a lobster ready for dinner... --STeve Andre' wb8wsf en72 On 06/27/11 15:40, Bob- W7LRD wrote: After all the hoopala settles. When/where else can you play with radios, go camping, go potty in the woods, get bug bites, have a good time with friends, and figure how all this stuff works. Because, just maybe, one day you'll have to do it for real! still scratching bites 73 Bob W7LRD Seattle *From: *STeve Andre' and...@msu.edu *To: *amsat-bb@amsat.org *Sent: *Monday, June 27, 2011 12:09:45 PM *Subject: *[amsat-bb] Re: FD Mess Well, is IS a contest, no matter what the ARRL says. People see it as such. My first FD before I was a ham, looked like a contest to me and it was only later, reading all the ARRL books I could get ahold of that I realized it really wasn't one. All contests where you go outside are test runs for emergency stuff. Our club in Ann Arbor MI (Arrow Communication Association) does the summer vhf+ contests outside (6m-1296) and those have been a great way to figure out ways of doing stuff. I would argue that the ARRL needs to change the way they talk, and offer FD as both a contest and exercise in communications, and speak of the exercise opportunities at the other contests, especially those of rovers. --STeve Andre' wb8wsf en72 On 06/27/11 14:21, Nigel Gunn wrote: A bigger FD problem is that FD is advertised as a chance to demonstrate your emergency comms ability to Joe Public. FD is NOT a contest so why are points and bonuses involved at all? On 27/06/11 19:13, Bill Acito W1PA wrote: I think we have to let go of the mantra that “any use of the bandwidth is good use” with respect to “encouraging more satellite activity”. Wasn’t that the original intent of the “100 point bonus” items? To encourage specific activities – traffic handling, promotion, emergency power, etc. ___ Sent via AMSAT-BB@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-BB@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: ARISSatTLM source code
On 06/23/11 18:40, Gordon JC Pearce wrote: On Tue, 21 Jun 2011 19:08:25 -0500 George Henryka3...@att.net wrote: HOpe this helps!!! What the original poster was asking for is the source, rather than precompiled Windows and Mac OSX binaries. The source doesn't seem to be available yet. It's a shame that closed-source software seems to be so common in amateur radio - you get people sharing all sorts of information, but they just don't seem to have grasped the idea that letting people see the source code is a Very Good Thing. Gordon MM0YEQ Yeah, absolutely this is a problem. What bothers me the most about this is saying I don't run Windows, or MacOS, or Linux, and then I just get the blink blink response, and that's it. I know two kids interested at least to some extent about ham radio, both who are learning and understand open source culture, who were not exactly impressed with some of the closed source programs they've seen--and wanted to improve on. But this is changing, and is yet another reason to get more younger people involved in ham radio in general. --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: ARISSatTLM source code
Anthony, my comments were about ham software in general, not the arissattlm code. Apologies if it came off that way. --STeve Andre' wb8wsf en72 On 06/23/11 21:57, Anthony Monteiro wrote: Hi Guys, This has always been open source, its just that the server is temporarily down. You can find all of the original LINUX code without the GUI on Phil's web site: http://www.ka9q.net/ We hope to have the server with the ARISSatTLM Windows code up again soon. 73, Tony AA2TX On 6/23/2011 7:36 PM, STeve Andre' wrote: On 06/23/11 18:40, Gordon JC Pearce wrote: On Tue, 21 Jun 2011 19:08:25 -0500 George Henryka3...@att.net wrote: HOpe this helps!!! What the original poster was asking for is the source, rather than precompiled Windows and Mac OSX binaries. The source doesn't seem to be available yet. It's a shame that closed-source software seems to be so common in amateur radio - you get people sharing all sorts of information, but they just don't seem to have grasped the idea that letting people see the source code is a Very Good Thing. Gordon MM0YEQ Yeah, absolutely this is a problem. What bothers me the most about this is saying I don't run Windows, or MacOS, or Linux, and then I just get theblink blink response, and that's it. I know two kids interested at least to some extent about ham radio, both who are learning and understand open source culture, who were not exactly impressed with some of the closed source programs they've seen--and wanted to improve on. But this is changing, and is yet another reason to get more younger people involved in ham radio in general. --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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-BB@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: [RTTY] Call for Papers--2011 ARRL/TAPR Digital CommunicationsConference
Technical papers are solicited for presentation at the 30th Annual ARRL and TAPR Digital Communications Conference to be held September 16-18, 2011 in Baltimore, Maryland. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2011. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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: ISS HRD
On 06/16/11 02:38, Gordon JC Pearce wrote: On Wed, 2011-06-15 at 23:05 -0700, Kevin Deane wrote: So I have confirmed HRD is like 23 minutes ahead of Amsat, I got a good Digi Qso on the last pass... I just dont see why Amsat shows good info but not on there keps download. Because the amsat site is an unusable pile of crap, with various bits and pieces that don't entirely talk to each other. The keps download and the pass predictions should pull their information from the same source. This would be incredibly easy to script. However, it appears that the downloadable keps are only updated when someone can be bothered to get off their hindmost and upload a text file containing them. Several people (including) have offered to fix or rewrite the amsat.org site, even for free. Instead they're all too busy with their HEO cargo-cult. Gordon MM0YEQ Offer again, in public? Like, here? --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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] Call for Papers--2011 ARRL/TAPR Digital Communications Conference
Technical papers are solicited for presentation at the 30th Annual ARRL and TAPR Digital Communications Conference to be held September 16-18, 2011 in Baltimore, Maryland. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2011. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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: Flames on Endeavor
On 06/01/11 02:48, Kevin Deane wrote: Is that normal?? If anyone was watching that is... Kevin ___ Sent via AMSAT-BB@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 Yes, it's the APU, I think. --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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] Call for Papers--2011 ARRL/TAPR Digital CommunicationsConference
Technical papers are solicited for presentation at the 30th Annual ARRL and TAPR Digital Communications Conference to be held September 16-18, 2011 in Baltimore, Maryland. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2011. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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] Call for Papers--2011 ARRL/TAPR Digital CommunicationsConference
Technical papers are solicited for presentation at the 30th Annual ARRL and TAPR Digital Communications Conference to be held September 16-18, 2011 in Baltimore, Maryland. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2011. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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: searching advice on low pass filter for 146 MHz
Werner Kullmann, HB9BNK expunged (hb9...@uska.ch): What an amazing responsetime on this list ! (post the question, go shopping, find valuable advice !) thank you all very much ! Since you have plenty of gainr, one cheap alternative might be to try a tuned stub inline with the feedline. -Steve N1JFU - http://n1jfu.blogspot.com - smeuse@twitter ___ Sent via AMSAT-BB@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] Call for Papers--2011 ARRL/TAPR Digital Communications Conference
Technical papers are solicited for presentation at the 30th Annual ARRL and TAPR Digital Communications Conference to be held September 16-18, 2011 in Baltimore, Maryland. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2011. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ Sent via AMSAT-BB@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: MESSENGER About To Go Into Orbit Around Mercury
JoAnne Maenpaa expunged (k9...@comcast.net): NASA TV is carrying coverage right now ... http://www.nasa.gov/ntv I was happy to discover there is now a NASA-TV app for the Roku box. I finally get NASA TV! Yay! http://www.roku.com/ -Steve N1JFU - http://n1jfu.blogspot.com - smeuse@twitter ___ Sent via AMSAT-BB@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: RARE Photo of AMSAT ACs
Clint Bradford expunged (clintbradf...@mac.com): Some of my fellow AMSAT friends may not have seen this group photo of AMSAT area coordinators ... I use it in my presentations ... http://tinyurl.com/SKEDS What's that funny thing you're holding? ;) Is that an abacus or something? tongue firmly implanted in cheek -Steve N1JFU - http://n1jfu.blogspot.com - smeuse@twitter ___ Sent via AMSAT-BB@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: ARISSat-1 decoding software release
On 02/09/11 14:09, Gould Smith wrote: As I posted on Monday, the ARISSatTLM software is not yet ready for distribution. We are still testing it. We expect to release the free ARISSatTLM software next week. This software will demodulate, decode and display the BPSK-1000 telemetry and Experiment data as well as the CW signal. There will be both PC and Mac versions. 73, Gould, WA4SXM AMSAT ARISSat-1 Project Manager ___ Sent via AMSAT-BB@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 Are you releasing the source? --STeve Andre' wb8wsf en72 ___ Sent via AMSAT-BB@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: SSETI-ESEO project cancelled?
On 02/08/11 16:35, Thomas Frey wrote: Greetings Since about a month the URL www.sseti.net doesn't exist anymore. Is the SSETI-ESEO project with participation of AMSAT-UK cancelled ? I can't really tell, but the whois info for it makes me think the domain was up for renewal, and when it expired a robot came along and snatched it up, in the hopes that its owners would pay 25+ times the renewal price for it. --STeve Andre' wb8wf en72 ___ Sent via AMSAT-BB@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] FW: [Ballooning] Launch Opportunity To All Balloon Groups, Or Individuals!
Forwarded by Steve G6UIM Launch Opportunity To All Balloon Groups, Or Individuals! This will be a launch opportunity that will be for most if not all the balloon groups a once in a lifetime opportunity! A few people on these lists already know about this. I am now trying to hit all the lists that I know of. If you know of anyone that may be interested please forward this on to them. In the spirit of cooperation between all the balloon groups, Like the Four to Six groups did from those early days over 20 years ago now. Where every flight that happened all the groups all joined in helping each other to make sure the flight was successful. There were only a dozen or so flights each YEAR! Now sometimes in one weekend, there are more flights happening, than what would have happened for the whole year back in those old days! After MUCH thought, and deliberation, in the spirit of the fellow founders of this extremely fun activity we do. I have decided to open this flight opportunity to anyone and everyone. Anyway, I at first thought of using this opportunity for myself to grab and smash for all time the maximum altitude record. But then I also thought, maybe while that is cool, but at the same time an awful waste of this opportunity. And this will be a one time flight! I know myself for sure could never ever even come close to doing a flight like this again. The Balloon alone when purchased cost close to $2800.00 Yikes! So I got to thinking of instead of simply grabbing the all time and probably forever maximum altitude record. I thought maybe open up this opportunity to all the groups anywhere to propose a payload to fly on it. For more details visit the address below. http://www.qsl.net/wb9sbd/300K.html Any proposals I get I will post on that web site for everyone to examine. Joe WB9SBD Near Space Sciences __._,_.___ http://geo.yahoo.com/serv?s=97359714/grpId=2133522/grpspId=1705063108/msgId =3511/stime=1296793816/nc1=4025321/nc2=4836045/nc3=5028924 __,_._,___ ___ Sent via AMSAT-BB@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] Payloads required for very big balloon flight
HI WB9SBD plans to fly a very large balloon. He wants to reach hopefully 250,000 ft. and make the balloon a floater i.e. for it not to burst. I thought this might be an opportunity for AMSAT. To fly a transponder or other payload. More Details here http://www.qsl.net/wb9sbd/300K.html Steve G6UIM ___ Sent via AMSAT-BB@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] Launch Opportunity To All Balloon Groups, Or Individuals!
Forwarded by Steve G6UIM Launch Opportunity To All Balloon Groups, Or Individuals! This will be a launch opportunity that will be for most if not all the balloon groups a once in a lifetime opportunity! A few people on these lists already know about this. I am now trying to hit all the lists that I know of. If you know of anyone that may be interested please forward this on to them. In the spirit of cooperation between all the balloon groups, Like the Four to Six groups did from those early days over 20 years ago now. Where every flight that happened all the groups all joined in helping each other to make sure the flight was successful. There were only a dozen or so flights each YEAR! Now sometimes in one weekend, there are more flights happening, than what would have happened for the whole year back in those old days! After MUCH thought, and deliberation, in the spirit of the fellow founders of this extremely fun activity we do. I have decided to open this flight opportunity to anyone and everyone. Anyway, I at first thought of using this opportunity for myself to grab and smash for all time the maximum altitude record. But then I also thought, maybe while that is cool, but at the same time an awful waste of this opportunity. And this will be a one time flight! I know myself for sure could never ever even come close to doing a flight like this again. The Balloon alone when purchased cost close to $2800.00 Yikes! So I got to thinking of instead of simply grabbing the all time and probably forever maximum altitude record. I thought maybe open up this opportunity to all the groups anywhere to propose a payload to fly on it. For more details visit the address below. http://www.qsl.net/wb9sbd/300K.html Any proposals I get I will post on that web site for everyone to examine. Joe WB9SBD Near Space Sciences __._,_.___ http://geo.yahoo.com/serv?s=97359714/grpId=2133522/grpspId=1705063108/msgId =3511/stime=1296793816/nc1=4025321/nc2=4836045/nc3=5028924 __,_._,___ ___ Sent via AMSAT-BB@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: Rig debate time...
On 10/16/10 17:01, K8TB wrote: So I have an Icom IC-821 that I am using for the birds, SSB and FM. I don't know what to say, but that rig isn't quite there. So I am trying to decide between a TS-2000 and an IC-910H. I've had a 2000 in the past, and it is a pretty good rig. But I've heard that the 910H is better, more or less. I have mast mounted SSB preamps to equalize everything out. Anyone on the list own both an IC-910H and a TS-2000, and do you have any thoughts on the use of them for sat use? (I don't really need the low band part of the TS-2000, I have a K3 there). tom bosscher K8TB Hello Tom, I'm not sure where it is, but in the archives where was a discussion about IC-910 vs TS-2000 wars, which had some good comments in it. I personally prefer the IC-910 (I have one) but have played with a TS-2000 for less than 10 hours. So, where is the archive? --STeve Andre' wb8wsf en82 ___ 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: Antenna Opinions?
I use a Directive Systems 25 element loop yagi and it works great for AO-51 L band. http://www.directivesystems.com I'm feeding it with 10 watts via 35 feet of LMR400. Directive Systems antennas are very well built and less expensive than some other popular brands. Steve N5EN --- ko6th_g...@hotmail.com wrote: From: Greg D. ko6th_g...@hotmail.com To: amsat-bb@amsat.org Subject: [amsat-bb] Antenna Opinions? Date: Tue, 21 Sep 2010 22:03:31 -0700 Hi folks, So, we had a swap meet a couple of weekends ago, and I found a bargain I couldn't refuse. Of course, now I need to decide what to do with it... The Find was a 35 element 1296mHz antenna, well built and in excellent condition. Linearly polarized, horizontal; supposed to be 23dBi gain. Manufacturer, of course, is unknown. No markings, but it does not look home-built. By the mounting hardware, it looks like it was part of some sort of stacked array. The problem is that I already have a 1296mHz antenna. Home-made, circularly polarized, 18 turns Helix. Should be something like 17dBic, if the calculations are correct. In the shack, which is at the wrong end of 60' of 1/2 hardline and a total of about 15' of RG-213 or something like it, I have my Yaesu 736R and its 10 watts of screaming RF power. No preamps. Which antenna should I keep up on the rotor assembly? Last weekend I put up the new antenna. I've made one AO-51 LU pass with the new antenna, and I was not impressed. Several times I couldn't get into the bird, presumably because of the crossed polarization. But when I did get in, it was full quieting, even at low elevations. I don't recall having this much trouble with the Helix. I think AO-51 is the only current satellite on L-band, right? For other uses, there's nothing terrestrial to aim at, repeaters-wise; they're all hiding behind one or more hills, or went off the air years ago. That leaves Weak Signal work (hence the horizontal mounting). I do have one shot into the valley, to the North West, but probably slim pickings for contacts. I haven't tried EME. I'm leaning towards putting the Helix back up, and passing the new one on to someone more able to use it. What are your thoughts? Thanks, Greg KO6TH ___ 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] (no subject)
http://www.twincities.com/ci_16128573 ___ 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: satellite radio for sale
Interesting radio... Receives on 2m and 70cm but transmits on 2m only. Steve N5EN --- wa4...@comcast.net wrote: From: wa4...@comcast.net To: AMSAT amsat-bb@amsat.org Subject: [amsat-bb] satellite radio for sale Date: Fri, 10 Sep 2010 19:01:39 + (UTC) Memphis ham KA2BSM has a DRAKE TR 270 FM satellite radio for sale see it at http://sites.google.com/site/tristaterepeaterassociation/club-wiki/sell-trade WA4HFN Damon ___ 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: New Satellite Downlink?
Heh. One of the escape sequences could be which language to use, so with the 16-bit scheme here, you could have 64K possible ones to choose from. Just have a 65,000 word table for each one. You'd send out messages one language at a time. On Wednesday 25 August 2010 17:55:09 Graham Shirville wrote: Hi Steve, I wonder how that would work with multiple languages:) 73 Graham G3VZV - Original Message - From: STeve Andre' and...@msu.edu To: amsat-bb@amsat.org Sent: Wednesday, August 25, 2010 10:24 PM Subject: [amsat-bb] Re: New Satellite Downlink? On Wednesday 25 August 2010 12:27:00 Robert Bruninga wrote: Possible new AMSAT Application? We may have access to two old TRANSIT navigation satellites with a 50 baud downlink at 149.985 (and 400 MHz). (presently coming over in the mid afternoon). My problem is, coming up with any meaningful application to use them for communications that would capture the interest of students, hams or volunteers in support of education, public service or emergency comms or just plain fun... The downlink can be heard on an OMNI antenna (though I would suggest a 3/4 wave (55) vertical) and could be decoded by a simple software only application with a sound card. (someone has to write it)... The total useful message capability is about 500 bytes transmitted every 2 minutes (at 50 baud). The uplink is very specialized and can ONLY BE DONE from one (or two) very special commmand stations. These satellites of course were the original Navy Navigation satellite system (also called OSCARS) and so the message would be in-place of the normal navigation data. SO in a sense, this is a downlink BROADCAST application. Since ham radio is two way, I'm stumped for applications. Well, I'm not sure how many applications there are for this, but it could be fun to try some stuff. Way way back hundreds of years ago in the 70's I wrote some code to take English text and crunch it down and transmit it over a modem. I won't say the following is reasonable, but at 50 baud the little link needs all the help it can get. ;-) A lookup table can be made for about 65,000 of the most commonly used words plus various technical stuff. A message can then it converted into a series of 16-bit offsets into the table of words, taking 2 bytes (octets) per word. Printing out words takes the stream of data, does a lookup for each 16-bit quantity, prints that word plus a space, and goes on. A word like communications which is 14 bytes becomes two and is thus a win, but a I and the like is a loss. There could be an escape sequence to provide for the literal transmission of a word not in the 65,000 lookup table, and one could also be added for upper casing of the next word, etc. Doing this, you can transmit 250 words from the lookup table each minute, fairly faster than squirting out raw ASCII. Since you'd likely need a decoder no matter what the transmission is, the 65,000 word table is stored on the client side. Hilarity will probably ensue when someone doesn't update their table after a big change, and gets slightly demented messages till they update their code. Thinking about what to transmit... Possibly space weather transmissions? CMEs and such are something that has world wide impact. Well, that, or national lottery scores. -- STeve Andre' wb8wsf en82 Disease Control Warden Dept. of Political Science Michigan State University A day without Windows is like a day without a nuclear incident. ___ 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 -- STeve Andre' Disease Control Warden Dept. of Political Science Michigan State University A day without Windows is like a day without a nuclear incident. ___ 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: Grid Location
John Neeley expunged (w6...@att.net): First Mike, you are in EN81gq, per QRZ.com, and second you dont need the last 2 I would avoid using QRZ.com *if you want your 6 digit grid locator* I discovered they use the geographical center of your zip code, or some other method that isn't accurate. It's easy enough to get your lat-long from google earth and plug it into the Amsat grid calculator as well http://www.amsat.org/amsat/toys/gridconv.html -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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] Final Call for Papers--2010 ARRL/TAPR Digital Communications Conference
Technical papers are solicited for presentation at the 29th Annual ARRL and TAPR Digital Communications Conference to be held September 24-26, 2010 near Portland, Oregon. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2010. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ 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 Mode Switch
On Thursday 10 June 2010 07:50:54 John Papay wrote: AO-7 has normally switched modes every other day except during periods of eclipse when it stays in Mode B. On June 8th, it was in Mode A as predicted, however, when it was supposed to switch to Mode B between 0200 and 0500 on June 9th, the AO-7 log reported that it was heard in Mode B at 0407z by SP9TTX and then was reported off on the next pass at 0600z. When it came back on at 0800z, it was in Mode A rather than Mode B. Then it switched back to Mode B on the 10th at the normal time. In other words, it has skipped a day in the switching schedule. I didn't see any eclipse event and even if there was, the satellite would normally come back in Mode B rather than Mode A. Is there an explanation? 73, John K8YSE John Papay j...@papays.com The hardware is not 100% stable. It's been up there a long time, and while its operational status has been pretty well figured out, it isn't something that is completely defined. Thats my guess. I'm simply glad (and amazed) that it works at all. --STeve Andre' wb8wsf en82 ___ 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] Call for Papers--2010 ARRL/TAPR Digital Communications Conference
Technical papers are solicited for presentation at the 29th Annual ARRL and TAPR Digital Communications Conference to be held September 24-26, 2010 in Portland, Oregon. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2010. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org. Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ 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: Re HELIX REFLECTOR?
john, whats a good rule for height of the antennas to avoid large back lobes reflecting, ie how many wavelengths up should the antennas be? Thanks... --STeve Andre' wb8wsf en82 On Saturday 05 June 2010 17:07:15 John Belstner wrote: Just another $0.02 to add. You will find that the size and shape of the reflector will not affect the forward gain as much as it does the F/B ratio. It depends on what is important to you and (of course) how high you are above the ground. Even for satellite operation pointing up, large back lobes reflecting off the ground can adversely affect the forward pattern when the antenna is mounted only 6-8 feet above ground. On Jun 4, 2010, at 10:13 PM, Clare Fowler wrote: To add to the discussion the July/Aug 2007 Amsat Journal has an article covering some gain comparisonmeasurements I made between four 13 turn (2.88 wavelengths) 13cm antennas with different square solid aluminum reflectors. The sizes were 0.56 wavelengths, 0.84 wavelengths, 1.0 wavelength and 1.4 wavelengths. There was no difference between the 0.84, 1.0 and 1.4 wavelengths but the antenna with the0.56 wavelength reflector had 1.5 db less gain. However for my 70cm helix antennas I followed the Satellite Handbook minimum size of 0.6 wavelengthsor slightly over 16 inches. I used 1/2 inch hardware cloth mesh to keep the weight and windloading down. These antennas have performed well however it appears that they would be a bit better with a somewhat larger reflector. A brief description and picture of the 70 cm reflector is in the November/December 2005 Amsat Journal article on The Development of a Quarter Wave Match for helical antennas. Clare VE3NPC Hi All: I am rebuilding a 440 MHZ Helix that I built several years ago . It worked very well, but I would like to reduce the size of the reflector to a more manageable size than I had before. The only reference to reflector size I can find is, minimum 20 . I may be looking in the wrong places. I would appreciate it, if someone would steer me in the right direction. Thanks, Pete, K1HZU ___ 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: Attempted Falcon 9 Launch Halted
Retry in 5 minutes: http://www.spacex.com/webcast.php Steve N5EN --- top_gun_can...@yahoo.com wrote: From: B J top_gun_can...@yahoo.com To: amsat-bb@AMSAT.Org Subject: [amsat-bb] Attempted Falcon 9 Launch Halted Date: Fri, 4 Jun 2010 10:53:25 -0700 (PDT) The engines shut down right after ignition shortly before T-0. There may be another attempt later today. 73s Bernhard VA6NMJ @ DO33FL ___ 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: Satpc32
I have checked to observer 2. It is set same as 1. It's weird because all are equally off in timing about 20 minutes early I may change me local clock to see exactly how far off it is. Bit still need it to work proper. Thanks for you asvise Larry Steve Sent from my iPhone On May 14, 2010, at 9:36 PM, Larry Gerhardstein gerhardst...@montana.com wrote: Sounds like your predicted time may be over Europe. Check that your secondary location is same as primary. Larry W7IN On 5/14/2010 8:41 PM, Steve Bluemel wrote: Hello All, Recently my Satpc32 software has been predicting the birds about 20 minutes ahead of their actual AOS. I am using the latest version. System clock is accurate and reads the same as the software. Kep data is fresh. My location is loaded accurately. Has anyone experienced this before or have any ideas what may be wrong? Thank you, Steve, KI6OQU ___ 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] Call for Papers--2010 ARRL/TAPR Digital Communications Conference
Technical papers are solicited for presentation at the 29th Annual ARRL and TAPR Digital Communications Conference to be held September 24-26, 2010 in Portland, Oregon. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2010. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ 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: Email etiquette - was Re: Re: Moon
Nigel Gunn G8IFF/W8IFF expunged (ni...@ngunn.net): Top posting is the better option. My favorite annoyance are people who post 1 line of text but have 5 lines of a .sig :) -- 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. -Steve ___ 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] Spring Sprints start tonight!
In between making satellite Q's tonight, point your antennas toward the horizon and make some noise! http://groups.google.com/group/springsprints/web/2010-announcement-rules Note: The rules have changes, we go to distance scoring. Make sure you have your 6 digit grid locator handy! -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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: Heil Headset
David expunged (max...@shaw.ca): Greetings. Is there anyone that is using a Heil headset on the FT-736R, and if so which one, which mike cartage and what adapter. I would like to replace the hand mike on the 736R, which will free up both my hands. Thanks for any help you can pass on. I've used one for years, I think the proset-plus, which has the dual element. The adapter is the yellow Yaesu, I don't have the part number in front of me. -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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: New audio stream for Houston AMSAT Net
Bruce expunged (kk...@arrl.net): The Houston AMSAT Net now has a new Icecast streaming server, thanks to Mike, N0VZC. During our net, Tuesday 8PM Central Time (Wednesday 0100 UTC), our audio can be heard by pasting the following into your URL, Winamp, iPhone, iTunes or almost any other player. radio.arert.net:8000/amsat.m3u Thanks Bruce, I miss listening to the net! -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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] Call for Papers--2010 ARRL/TAPR Digital Communications Conference
Technical papers are solicited for presentation at the 29th Annual ARRL and TAPR Digital Communications Conference to be held September 24-26, 2010 in Portland, Oregon. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2010. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: m...@arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL ___ 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: Wish List, The Ideal VHF/UHF Sat Rig
Ken Ernandes expunged (n2...@mindspring.com): 1. Can I come up with a design to these specifications that I can sell in the realistic price range of the typical amateur operator? 2. Is there a large enough market out there that I can make a profit on this exercise? I generally agree with these questions, but how do you explain the Icom IC-7800? That's a $10,000 rig! I personally am planning on skipping the all-in-one box (even if it actually existed) and will be building an SDR/Transverter based system eventually. I think you have much better control of your environment with the SDR/Xverter combo. -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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: LVB Tracker and Kenpro
n4hy expunged (n...@flex-radio.com): After the 2 feet of snow melts, I will be refurbishing the rotator where needed. I am hoping this and the antenna deployment coincides with the arrival of my U/V full duplex 60w on both bands, transverter block arrives from Flex and I get back on satellites again. I'm saving my pennies for the same setup, but to get my Sat antennas back up I need to trench some conduit across the back yard. Hard to do when the ground is frozen solid :) -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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: This amateur has had enough of amsat-bb...
Hi Mark, I certainly understand your decision. Another solution you may consider, if your email client supports it, is to place the regular trolls on your 'block sender list'. You can also filter some key words in incoming message subject lines to reduce the clutter even more. It's not a perfect solution but it does reduce the noise a bit. Steve .. AI7W lm 2270 - Original Message - From: Mark VandeWettering kf6...@gmail.com To: amsat-bb@amsat.org Sent: Saturday, February 06, 2010 16:32 UTC Subject: [amsat-bb] This amateur has had enough of amsat-bb... Only serious business instead of amateur stuff... Again amateur radio apparatus is left on the extreme right lane and probably soon in the ditch if the ISS amateur radio apparatus is not put back in service soon! I asked this question about an hundred times: why they don't put the ISS cross band repeater on? It can run unattended and there is no risk the batteries get down as those in the camera. It will also send the QRP'er away off the other sat as the ISS repeater is very very easy to hear and work too. Great promoting asset collecting floating dust in space. Wow, you never know when your threshold will be reached, but this is mine. This list never seems to miss an opportunity to complain about the state of affairs, but always seems to miss opportunities to actually do anything positive. I've reached my personal limit of grouchery.Complain all you want from your position in the ditch, I'm hitting the road. 73 Mark K6HX ___ 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: 20-year Li-Ion Packs
On Friday 05 February 2010 18:31:08 Clint Bradford wrote: Japanese research and development firm Eamex claims to have found a new way to increase the typical average life of a high-capacity lithium-ion battery. Eamex's new technology will allow the demanding batteries to sustain over 10,000 recharges over the course of 20 years. http://tinyurl.com/20yrbatt I remember just a few years ago how thrilled we consumers were with 1200-1400mAH in NiMH AA cells. Now we have twice that capacity ... It's very exciting seeing both consumer and commercial-grade battery technology mature. Clint, K6LCS Thank you for posting this Clint -- I'd heard of this from a friend but he could not give me the link, but now I have it. I am happy to hear of this, but I take it with some skepticism, in that this is a projected life time, not a real one. While I would *love* for this to be true, I wonder what un-thought of chemical reactions there might be, affecting the battery some years down the road. To give an example that fuels my skeptic tank, consider recent disk drives and the enormous published mean time between failures for them. They were garbage, and looking at WD disks (scorpio blue), they don't publish MTBF any more. So while I want aa batteries with 13.1AH capacity and 12,000 recharge cycles, I'm going to have to wait for them... ;-) --STeve Andre' wb8wsf en82 ___ 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: It's NOT Censorship
Joel Black expunged (jbblac...@gmail.com): What I disagree with is the statement, AMSAT is not 'censoring' anyone. Now, I'm no lawyer by any stretch, but I can read. Censoring is limiting speech based on what one finds objectionable. What is objectionable is completely subjective. When you are using the private resources of the AMSAT corporation, they can do whatever they like. That's not censorship, that's protecting their own resources. I, for one, welcome our new mailing list overlords :) -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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] OT Tubes
I noticed thread about building a tube amp, which reminded me I had a some lying around. I have dug them out and am offering them free to anyone who can make use of them. So I have 5 OA2 150 tubes (tube equivalent of a zener diode) and 5 2c39 tubes plus 1 cv6224 (conduction cooled 2c39 I think) they are all used or out of spec, but I believe they all work. They are free to a good home just pay the pp and maybe make a donation to Amsat-UK for the funcube project. http://www.funcube.org.uk/ I used to work in a factory that made 2c39's and 4cx250's amongst other tubes, mostly Klystrons and TWT's and could often get hold of out of spec tubes etc. I wonder why I was a very popular Ham back in the 80's lol. Steve G6UIM ___ 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: 471A Service manual - looking again
On Friday 08 January 2010 11:35:11 Rich Dailey (Gmail) wrote: Alas, my search is back on again for a service manual (not the instruction manual, which does have some technical info, but is not comprehensive) for the Icom IC-471A. I do have the instruction manual, as well as a schematic. Thanks again to all who helped previously, and thanks in advance for anyone who can help put me back on the trail. Rich, N8UX Rich, I'm hoping this is wrong, but I was talking with another ham who had lots of Icom stuff and he said that there never was a service manual for the 471--something about Icom running out of time, etc, and that the 271 would be a general guide to the 471. I've collected just about all the service manuals for all my Icom gear plus that of friends, and I have never seen 471 service stuff. Ever since hearing the bad news I've idly looked about. Perhaps you can prove this wrong in your further searches. If you do find it, please let folks know. --STeve Andre' wb8wsf en82 ___ 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: IT/vista
Bob- W7LRD expunged (w7...@comcast.net): Thanks for the many suggestions I received for getting IT to run on a Vista (os) laptop. Unfortunately I can not get it working. A local ham/computer guru will, perform the laying on of hands. Why computer manufacturers and software companies (MS) seemingly make things obsolete before their time I find unconscionable. Bob, while I can sympathise, I don't think this is Microsoft's fault. IT was written 20 years ago for a different operating system. We can't expect Microsoft to support this forever, it's just not practical. It's probably worth the time investment to learn a new client. -Steve P.S. That is about the only time you will ever hear me defend Microsoft :) N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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: nova
Hi Jerry, Northern Lights Software is still selling Nova so I assume they're still supporting it. Northern Lights Software Associates P.O. Box 321 Jamesville, NY 13078 telephone : (315) 345-6991 e-mail : n...@nlsa.com Steve .. AI7W - Original Message - From: Dads w0...@msn.com To: amsat-bb@amsat.org Sent: Tuesday, December 22, 2009 05:43 UTC Subject: [amsat-bb] nova Hi: I have had Nova for years and when I put it on my new computer I can,t get it to go to the main menu and file to register it with my number. I mean my serial number. Do I have to buy a new one Jerry w0sat ___ 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: Mode J filter
Jabi expunged (ea2...@euskalnet.net): I want to buy one Mode J filter for work V/U mode. I've been meaning to try this filter, I know PAR makes good quality products: http://www.parelectronics.com/images/amateur_sat/modej_specs.htm Of course, you could also just use a diplexer... -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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: Here is a very nice video about XW-1
Andrew Glasbrenner expunged (glasbren...@mindspring.com): http://english.cctv.com/program/chinatoday/20091216/100966.shtml Makes me wondering if our German friends have had any discussions with the Chinese launch authority -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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: volunteering
Thanks for the replies. Since I am in the UK I have contacted Jim off list Steve G6UIM -Original Message- From: Jim Heck [mailto:jiml...@milnet.uk.net] Sent: 20 October 2009 08:58 To: Steve Daniels Cc: Graham Shirville Subject: RE: [amsat-bb] volunteering Steve, I wonder if you have heard of FUNcube? (see www.funcube.org.uk) I wonder if you know Word Press? (!) I also wonder where you are located (I live in Blandford, Dorset), and if you have any experience in PR/outreach. My records show that you aren't a member of AMSAT-UK. Maybe you would consider joining? See http://www.uk.amsat.org/content/view/35/34/ 73 Jim Heck G3WGM Hon Sec AMSAT-UK -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org]on Behalf Of Steve Daniels Sent: 20 October 2009 00:04 To: amsat-bb@amsat.org Subject: [amsat-bb] volunteering Hi After reading various posts I decided that having time one my hands at the moment, I would like to volunteer to help out in whatever capacity I can. I think being able to help build a satellite is probably out of my league. But I could help out collating information and updating websites etc. I run my own web server built by myself and a few websites. Hopefully someone can contact me for a discussion on how I can help. Steve G6UIM Email st...@daniels270.eclipse.co.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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.422 / Virus Database: 270.14.21/2445 - Release Date: 10/19/09 06:40:00 ___ 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: volunteering (Mobile Satellite PAPER Predictor)
Hi Bob, I think the following site does pretty much what you are asking http://www.heavens-above.com/ If you register there and input your location one of the options is to display a list of Amateur Satellites for a 24 hour period. It does list all passes and not just the best. You can use the next button to select the following days. The site developer Chris Peat is very helpful, I am sure he could tweak the page to better suite our needs Steve G6UIM -Original Message- From: Robert Bruninga [mailto:bruni...@usna.edu] Sent: 20 October 2009 18:06 To: bruni...@usna.edu; 'Steve Daniels'; amsat-bb@amsat.org Subject: RE: [amsat-bb] Re: volunteering (Mobile Satellite PAPER Predictor) Actually, There is another similar WEB page project That does the same thing for ALL mobile operators, Not just those with APRS displays. It is simpler And only has a single TEXT output: Please see the idea on this web page: http://www.aprs.org/MobileLEOtracking.html PROJECT OBJECTIVE: Develop a web page that any amateur radio operator can go to that will print out this very simple PAPER tracking device. It is just a piece of paper with 5 columns for each of 5 days, and on each of those five days, the TIME of the best overhead pass for that users local area (morning and evening). For ECHO (AO51) this simple piece of paper with 10 times on it can be used for SHOWING the pass times of ALL morning and evening passes for the next 2 or 3 months! You don't need no stinkin computer to always know when AO51 is overhead while you are mobile! Just look at the TIME on the paper for today's date. (ECHO's pass times repeat every 5 days)... Each other satellite has similar REPEATABILITY. Just pring one of these slips of papwer for your favorite satellite, and you will never need to do a prediciton again, yet, will always hve what you need in the car to predict each day's pass times. Bob, WB4APR -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Robert Bruninga Sent: Tuesday, October 20, 2009 12:56 PM To: 'Steve Daniels'; amsat-bb@amsat.org Subject: [amsat-bb] Re: volunteering (Mobile Satellite Predictor) I would like to volunteer to help out in whatever capacity I can. I run my own web server built by myself and a few websites. Seeing your message, caused me to stop and think, what is the next thing I think might be valuable to help the general amateur radio operators to better operate the satellites? Again, this might not be at all what you are interested in, but let me have a go at defining a nice project for someone in case this fits anyone's talents. PROBLEM: To play satellites, you need to have a tracking program and to WATCH it all the time or do PLANNING to know when to go play satellites. Actually, this is so... Past decade. OBJECTIVE: What we need is a service that continuously feeds SAT-IN-VIEW information to everyone in the field right there on their radio front panel, whenever any AMSAT is in view. This way, you can be mobile, or hiking, or anywhere on the planet, and right their even without ASKING, the information will be PUSHED to you. SOLUTION: Actually, this capability has existed since about 1997 on the APRS channel, but it only works where a LOCAL individual runs either APRSdata or DIGI_NED in the local region, and maintains it. In this case, mobiles, or anyone monitoring the national APRS channel will receive this INSTANT information not only showing any SAT in view, but also its AZIMUTH, ELEVATION and FREQUENCY of both the uplink and downlink AND DOPPLER! You can see examples of this system on http://www.aprs.org/localinfo.html . Move your slider about 90% down the page and look for the paragraph LOCAL SATELLITE ALERTS. This way you don't need any PC, or anything. But if you are mobile and if a satellite comes above the horizon in your area, and you monitor APRS on your APRS mobile radio, then you will be able to work the satellite (also mobile, since we only output the satellites that are easy to work from a mobile)... The info on the satellite is updated once each minute when it is above the horizon. Also, once each TEN minutes a SCHEDULE of any satellites coming up in the next 80 minutes is transmitted to the DX LIST inside your radio, so you can also check for any future passes. PROJECT: Rather than having to have 1000 volunteers all over the world, one in the footprint of every APRS local area have to operate and maintain one of these programs (which is why most people never see these alerts), it would be nice if there was just ONE central server that fed this data everywhere. Then only one person would have to update the server when new satellites were launched and once every week or so to download new TLE element sets. ISSUES: In one sense this would be a great step forward, in centralizing the generation of this data. But the problem
[amsat-bb] Re: volunteering (Mobile Satellite PAPER Predictor)
Hi Bob, I think the following site does pretty much what you are asking http://www.heavens-above.com/ If you register there and input your location one of the options is to display a list of Amateur Satellites for a 24 hour period. It does list all passes and not just the best. You can use the next button to select the following days. The site developer Chris Peat is very helpful, I am sure he could tweak the page to better suite our needs Steve G6UIM -Original Message- From: Robert Bruninga [mailto:bruni...@usna.edu] Sent: 20 October 2009 18:06 To: bruni...@usna.edu; 'Steve Daniels'; amsat-bb@amsat.org Subject: RE: [amsat-bb] Re: volunteering (Mobile Satellite PAPER Predictor) Actually, There is another similar WEB page project That does the same thing for ALL mobile operators, Not just those with APRS displays. It is simpler And only has a single TEXT output: Please see the idea on this web page: http://www.aprs.org/MobileLEOtracking.html PROJECT OBJECTIVE: Develop a web page that any amateur radio operator can go to that will print out this very simple PAPER tracking device. It is just a piece of paper with 5 columns for each of 5 days, and on each of those five days, the TIME of the best overhead pass for that users local area (morning and evening). For ECHO (AO51) this simple piece of paper with 10 times on it can be used for SHOWING the pass times of ALL morning and evening passes for the next 2 or 3 months! You don't need no stinkin computer to always know when AO51 is overhead while you are mobile! Just look at the TIME on the paper for today's date. (ECHO's pass times repeat every 5 days)... Each other satellite has similar REPEATABILITY. Just pring one of these slips of papwer for your favorite satellite, and you will never need to do a prediciton again, yet, will always hve what you need in the car to predict each day's pass times. Bob, WB4APR -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Robert Bruninga Sent: Tuesday, October 20, 2009 12:56 PM To: 'Steve Daniels'; amsat-bb@amsat.org Subject: [amsat-bb] Re: volunteering (Mobile Satellite Predictor) I would like to volunteer to help out in whatever capacity I can. I run my own web server built by myself and a few websites. Seeing your message, caused me to stop and think, what is the next thing I think might be valuable to help the general amateur radio operators to better operate the satellites? Again, this might not be at all what you are interested in, but let me have a go at defining a nice project for someone in case this fits anyone's talents. PROBLEM: To play satellites, you need to have a tracking program and to WATCH it all the time or do PLANNING to know when to go play satellites. Actually, this is so... Past decade. OBJECTIVE: What we need is a service that continuously feeds SAT-IN-VIEW information to everyone in the field right there on their radio front panel, whenever any AMSAT is in view. This way, you can be mobile, or hiking, or anywhere on the planet, and right their even without ASKING, the information will be PUSHED to you. SOLUTION: Actually, this capability has existed since about 1997 on the APRS channel, but it only works where a LOCAL individual runs either APRSdata or DIGI_NED in the local region, and maintains it. In this case, mobiles, or anyone monitoring the national APRS channel will receive this INSTANT information not only showing any SAT in view, but also its AZIMUTH, ELEVATION and FREQUENCY of both the uplink and downlink AND DOPPLER! You can see examples of this system on http://www.aprs.org/localinfo.html . Move your slider about 90% down the page and look for the paragraph LOCAL SATELLITE ALERTS. This way you don't need any PC, or anything. But if you are mobile and if a satellite comes above the horizon in your area, and you monitor APRS on your APRS mobile radio, then you will be able to work the satellite (also mobile, since we only output the satellites that are easy to work from a mobile)... The info on the satellite is updated once each minute when it is above the horizon. Also, once each TEN minutes a SCHEDULE of any satellites coming up in the next 80 minutes is transmitted to the DX LIST inside your radio, so you can also check for any future passes. PROJECT: Rather than having to have 1000 volunteers all over the world, one in the footprint of every APRS local area have to operate and maintain one of these programs (which is why most people never see these alerts), it would be nice if there was just ONE central server that fed this data everywhere. Then only one person would have to update the server when new satellites were launched and once every week or so to download new TLE element sets. ISSUES: In one sense this would be a great step forward, in centralizing the generation of this data
[amsat-bb] Re: volunteering
Hi David Sadly no I don't have any 2m design experience, my design experience is mostly high voltage switch mode PSU for powering Traveling Wave Tubes, and the microcontroller based management systems for controlling high power travelling wave tubes + PSUs. Mostly I have done the microcontroller aspect of that. Over recent years I have been mainly involved in I.T. admin in schools Steve G6UIM _ From: g0...@aol.com [mailto:g0...@aol.com] Sent: 20 October 2009 17:00 To: st...@daniels270.eclipse.co.uk Subject: Re: [amsat-bb] Re: volunteering In a message dated 20/10/2009 15:57:17 GMT Standard Time, st...@daniels270.eclipse.co.uk writes: Thanks for the replies. Since I am in the UK I have contacted Jim off list Steve G6UIM Or, do you have any experience of designing for 2m ?(For the ESEO project) Thanks David G0MRF ___ 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: On the possibility of imaging AO-40 with earth bound telescopes...
This is interesting; I've learned stuff because of this. Not that it's practical, but what could Hubble see? The first question would be can it be positioned to stare down, and then how well would it see something that close and fast? --STeve Andre' wb8wsf en82 On Thursday 15 October 2009 08:57:59 Tim - N3TL wrote: Please see Page 19 of the May-June 2008 issue of The AMSAT Journal. Patrick Seitzer, WA4DSR, provided a photo of AO-40 taken by the University of Michigan's Curtis-Schmidt Telescope at Cerro Tololo Inter-American Observatory in Chile. Following is information from a University of Michigan Web page about the telescope: The Curtis-Schmidt telescope is a 0.61 meter aperture f/3.5 Schmidt telescope located at the Cerro Tololo Inter-American Observatory, about 500 km north of Santiago, Chile. This telescope was originally installed at the University of Michigan's Portage Lake Observatory in 1950, and moved to the much clearer skies of north central Chile in 1966. It is named for Heber D. Curtis, Director of the University of Michigan Observatories from 1930 until 1942. The telescope is dedicated to optical studies of artificial space debris for NASA's Orbital Debris Program Office at the Johnson Space Center. Projects include optical surveys for debris and follow-up observations to determine orbits and photometric properties of recently discovered debris. If you find the Journal photo, you'll see a field with dozens of blurred stars and one sharp litttle white dot, which is AO-40. I believe it's safe to say that obtaining an image with the detail necessary to try assess damage is impossible. 73 to all, Tim - N3TL From: Mark VandeWettering kf6...@gmail.com To: amsat-bb@amsat.org Sent: Thursday, October 15, 2009 2:57:40 AM Subject: [amsat-bb] On the possibility of imaging AO-40 with earth bound telescopes... Has there been any serious attempt to take a photograph of the damaged bird using ground based optical telescopes while it is in sunlight ? It's not going to work. AO-40 just isn't big enough. For fun, let's worth through some of the details. With modern telescopes such as http://www.refractortelescopes.co.uk/reviews/orion/orion-shorttube-80-a-refractor-telescope/ or similiar and a modern digital camera and a known RA/DEC co-ordinate of the satellite at any point in its orbit, it should be possible get a fairly decent picture of what is still up there... Note RA / DEC are astronomy co-ordinates which should be able to be calculated from AZ/EL or TLE, but I may not be able to do it myself. We don't need to track it, but just to image it in several consecutive frames. From: http://www.emergentspace.com/pubs/AIAA_GNC_2002_AMSAT_A040.pdf Table 1. Nominal Orbit Parameters for AO-40 Orbit Parameter Value Semimajor Axis (km) 36,245 Perigee Height (km) 1,042 Apogee Height (km) 58,691 Eccentricity 0.797 Inclination (deg) 6.04 Period (hours) 19.1 Let's look at a couple of potential telescopes. The short tube refractor that you linked to has an 80 mm (roughly 3 inch) aperature. According to the Rayleigh criterion, that scope should be able to resolve angles as small as about 1.5 arc seconds. At perigee, the resolving power is 1042000 * tan(1.5 arc seconds), or about 7.5 meters (or 25 feet). To increase the resolution by a factor of 2, you need to to double the aperature. To get resolutions down to 1/2 a foot, you need an aperature 50x larger, or 150 inches. This doesn't take into account any effects of atmosphere either. it's actually fairly rare to get sub arcsecond resolution from any earthbound telescope without using adaptive optics.. This limits the practicality of high resolution imaging. Impressive photos of the space shuttle, ISS and HST have been taken using amateur equipment, but these objects are both closer and an order of magnitude larger than AO-40. While we might be able to measure spin rate and the like by measuring the brightness curve, actual imaging of the satellite isn't likely. 73 Mark K6HX ___ 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
[amsat-bb] Re: AMSAT Symposium News Posted to the Web
Bob McGwier expunged (rwmcgw...@gmail.com): Did I ever tell you about the time I cranked 130w on 435 in Providence, R.I. and I received an admonishing phone call from OTIS, AFB asking me if I was on the air, reminding me of the limitations and my obligation to warn them? I hope I was not the cause of a false alarm, but I don't know. I had never spoken to them and didn't even know about the exclusion zones. This was ancient days, right after AO-10 was launched. I don't know the state of the rules or enforcement today but that caused some consternation let me tell you. Fred at least has the obligation to ask what the rules are currently. From Part 97: (http://www.arrl.org/FandES/field/regulations/news/part97/d-305.html#313) (f) No station may transmit with a transmitter power exceeding 50 W PEP on the UHF 70 cm band from an area specified in footnote US7 to §2.106 of the FCC Rules, unless expressly authorized by the FCC after mutual agreement, on a case-by-case basis, between the District Director of the applicable field facility and the military area frequency coordinator at the applicable military base. An Earth station or telecommand station, however, may transmit on the 435-438 MHz segment with a maximum of 611 W effective radiated power (1 kW equivalent isotropically radiated power) without the authorization otherwise required. The transmitting antenna elevation angle between the lower half-power (-3 dB relative to the peak or antenna bore sight) point and the horizon must always be greater than 10°. US7 §2.106 (http://www.fcc.gov/oet/info/maps/us7/) (e) In the State of Massachusetts within a 160-kilometer (100 mile) radius around locations at Otis Air Force Base, Massachusetts (latitude 41°45' North, longitude 70°32' West); Technically, if you were in R.I. you were not restricted because the regs specifically state In the State of Massachusetts. Also, you were exepemt most likely from the earth station exemption, depending on your ERP and if you are pointed up :) -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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: AMSAT Symposium News Posted to the Web
Steve Meuse expunged (sme...@mara.org): (e) In the State of Massachusetts within a 160-kilometer (100 mile) radius around locations at Otis Air Force Base, Massachusetts (latitude 41°45' North, longitude 70°32' West); Also, I don't know if this has any legal basis, but technically there is no such thing as Otis Air Force Base. Pave Paws is location on Cape Cod Air Force Station, which is on the Massachusetts Military Reservation. There is (recently closed) an Otis Massachusetts Air National Guard Base, but OTIS AFB ceased to exist back in the 60's. -Steve N1JFU - http://n1jfu.blogspot.com - sme...@twitter ___ 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
