[amsat-bb] Re: AMSAT JOURNAL
Yes, Rich, the article was very interesting. Your group is doing an awesome job with so many youngsters. John WA4WDL Rich/wa4bue wrote: > Thank you AMSAT for publishing the great artical about the K4AMG Club in the > AMSAT JOURNAL. > > Happy New Year Everyone. > > Rich > W4BUE > Pres K4AMG > > ___ > 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: Keeping up with technology
Yes, I agree, club meetings are one of the best aspects of ham radio, AMSAT, etc. But the draw needs to be the meeting and what is shared at the meetings. I am looking for a few regular meetings locally where I can share my actions/activities with others. John WA4WDL From: Bryce Salmi Sent: Wednesday, November 06, 2013 5:19 PM To: jmfranke Cc: kk5do ; amsat-bb@AMSAT.Org Subject: Re: [amsat-bb] Re: Keeping up with technology While I can't vouch for checking in on Twitter or other social medias. I can say I do respect the want to incorporate alternative and more publicly visible methods into the operations of ham radio and AMSAT. One of the stongest pulls for me into ham radio is the social aspect. Club meetings are some of the best aspects of the hobby when you have a great club with really personable members. A saying from Massachusetts (when I was out there, now I'm in Los Angeles) was "Clubs are the heartbeat of ham radio". So, Facebook, Twitter, Youtube, Google Plus, etc... I'd love to see more AMSAT involvement. It can only bring good to incorporate these into activities. Bryce KB1LQC On Wed, Nov 6, 2013 at 2:03 PM, jmfranke wrote: That is not "keeping up with technology," it is keeping up with fads. John WA4WDL -- From: "Bruce" Sent: Tuesday, November 05, 2013 7:44 PM To: "amsat-bb@AMSAT.Org" Subject: [amsat-bb] Keeping up with technology In trying to keep up with technology, the Houston AMSAT Net will now take check ins by Tweeting using the hash tag #houamsatnet 0200 UTC during the winters on Wednesdays (8PM Central Time) Be one of the first on your block to check in electronically. Of course, you can still use one of these: IRC, APRS, EchoLink, Telephone, E-mail or voice on the repeater directly. I would use Facebook but I have a thing against giving out all that information publicly. My Facebook account has been active for a long, long time and I have no friends. Not a one. In fact, once every year or two I check to see if it is still there. I think I have broken the Facebook record for the longest running account without a friend. Too easy for bad things to happen with Facebook. 73...bruce -- Bruce Paige, KK5DO AMSAT Director Contests and Awards ARRL Awards Manager (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0200z on Echolink - Conference *AMSAT* Also live streaming MP3 at http://www.amsatnet.com Podcast at http://www.amsatnet.com/podcast.xml or iTunes Latest satellite news on the ARRL Audio News http://www.arrl.org AMSAT on Twitter http://www.twitter.com/amsat ___ 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: Keeping up with technology
That is not "keeping up with technology," it is keeping up with fads. John WA4WDL -- From: "Bruce" Sent: Tuesday, November 05, 2013 7:44 PM To: "amsat-bb@AMSAT.Org" Subject: [amsat-bb] Keeping up with technology In trying to keep up with technology, the Houston AMSAT Net will now take check ins by Tweeting using the hash tag #houamsatnet 0200 UTC during the winters on Wednesdays (8PM Central Time) Be one of the first on your block to check in electronically. Of course, you can still use one of these: IRC, APRS, EchoLink, Telephone, E-mail or voice on the repeater directly. I would use Facebook but I have a thing against giving out all that information publicly. My Facebook account has been active for a long, long time and I have no friends. Not a one. In fact, once every year or two I check to see if it is still there. I think I have broken the Facebook record for the longest running account without a friend. Too easy for bad things to happen with Facebook. 73...bruce -- Bruce Paige, KK5DO AMSAT Director Contests and Awards ARRL Awards Manager (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0200z on Echolink - Conference *AMSAT* Also live streaming MP3 at http://www.amsatnet.com Podcast at http://www.amsatnet.com/podcast.xml or iTunes Latest satellite news on the ARRL Audio News http://www.arrl.org AMSAT on Twitter http://www.twitter.com/amsat ___ 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: Lightning protection
The best practice varies from region to region. Omission of a single factor can negate any insurance claims, so the best practice is to hire the services of a licensed electrician who would be familiar with the local electrical code. The insurance company should be able to provide references. John WA4WDL -- From: "David Carr" Sent: Wednesday, October 16, 2013 4:10 PM To: Subject: [amsat-bb] Lightning protection Hi group, I have a new wooden outbuilding and am thinking of putting a rotator on the roof. What are the best practices for lightning protection for a setup like this? I'm not as worried about the equipment as I am the building catching on fire. There are some things inside that are very important to me. Thanks for the help, David KD5QGR ___ 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: DELETE DELETE and DELETE AGAIN
AMSAT is only as good as its members. Everyone needs to ask themselves how they have contributed; articles to the Journal, support at hamfests, donations of time and money, etc. John WA4WDL -- From: Sent: Sunday, February 10, 2013 4:38 PM To: "AMSAT" Subject: [amsat-bb] DELETE DELETE and DELETE AGAIN Does Amsat have anything to offer us besides an email BB ? Now I guess there will be 2 weeks of RE: emails to this honest question that we all know the answer to.(nothing but excuses) Amsat needs more money, send more money. How much money does Amsat have? All these rocket scientist out there and not one of them can bum a little 6 inch square satellite a ride into space. Please don't dazel me with anymore of your electronic genius, I don't care, I would like to see it in space in the form of a bird that we can talk through. One that just doesn't beep beep beep . I would be good to see this BBS used for making contacts in grids ,states and friends. Why would anyone want to be a member of Amsat or renew membership? See u Damon ___ 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: NIWAKA detected in VT on 5.84 GHz!
Awesome feat! John WA4WDL -- From: "Mike Seguin N1JEZ" Sent: Saturday, November 10, 2012 8:03 AM To: Cc: ; Subject: [amsat-bb] NIWAKA detected in VT on 5.84 GHz! Hi Takushi, Success! I was able to detect NIWAKA. It was lower in frequency that I expected, but with the Funcube, easy to spot. The Doppler was huge! and I was moving the dish almost continuous to try and keep up. I'll edit the I&Q RF file and post it so folks can play it back for themselves. Two quick screen shots. In the first shot, you can see the signal on the left side Doppler shifting down. In the second shot, a close up of one data burst with Doppler - about 3 secs or so... http://users.burlingtontelecom.net/~n1...@burlingtontelecom.net/images/NIWAKA_1.jpg http://users.burlingtontelecom.net/~n1...@burlingtontelecom.net/images/NIWAKA_2.jpg The 5.84 GHz transmitter seemed to come on very close to the set time. First detection at 12:24:21 UTC. More later. 73, Mike, N1JEZ AMSAT 29649 "A closed mouth gathers no feet" - Original Message - From: "Mike Seguin N1JEZ" Subject: [amsat-bb] Re: 5.8GHz transmission from NIWAKA Hi Takushi, Excellent! I'm set and waiting for NIWAKA to come up over the horizon in about an hour. 73, Mike, N1JEZ AMSAT 29649 "A closed mouth gathers no feet" - Original Message - From: Subject: Re: [amsat-bb] 5.8GHz transmission from NIWAKA Dear Mike, We have set the delay command successfully. NIWAKA will send the 5.84GHz at 12:24:30 on 10th Nov. (UTC) There may be +,-,30 sec error. Please watch! Thank you. Best 73 de Takushi, JA6AVG - Original Message - Hi Takushi, I loaded the latest keps today and the pass times are confirmed. Looking forward to hearing NIWAKA! I will be recording the pass using a FunCube Dongle in I & Q RF mode, so I'll have ~ 80 kHz of bandwidth. If I'm able to detect the signal on 10 Nov, I can try an RTL SDR receiver on 11 Nov that can receive a much wider bandwidth. I use HDSDR with both SDR receivers. I will be setting up portable in a nearby parking lot so I have an unobstructed view to the satellite. I see the Doppler will be quite large on both days (~ 125 kHz). I use the original NOVA program on my laptop in the field which calculates Doppler for me. Let's hope for success and thanks for coordinating this test. 73, Mike, N1JEZ AMSAT 29649 "A closed mouth gathers no feet" - Original Message - From: Subject: Re: [amsat-bb] 5.8GHz transmission from NIWAKA > Dear Mike, > > We found the south paths with enough elevation in your suggestions. > We plan the following times which start 5.8GHz transmission. > The signal continues around 2 min. > (1) at 12:24:30 on 10th Nov. (UTC) > (2) at 11:32:30 on 11th Nov. (UTC) > According to our calculating orbit software, > the time is little bit delayed. > Please confirm with the latest TLE. > Thank you. > > 73 > Takushi, JA6AVG ___ 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: Herringbone Log Periodic Antenna
http://www.cq-vhf.com/vhf_highlights/2012_vhf/2012_spring_vhf/2012_spring_vhf_antennas.pdf John WA4WDL -- From: "Joe Lowenthal" Sent: Tuesday, July 17, 2012 11:06 PM To: Subject: [amsat-bb] Herringbone Log Periodic Antenna In June there was an email about the Herringbone Log Periodic's which were used at Dayton. Can someone give me that link? Thanks &73, Joe WA4OVO EM55 ___ 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: Circular polarization
When you check, please note that some are LHCP and some are RHCP. John -- From: "David 4X1DG" <4x...@iarc.org> Sent: Sunday, May 13, 2012 12:30 PM To: Subject: [amsat-bb] Circular polarization Is a UHF circular polarization antenna needed for the current operational satellites? I am planning some work on my antenna system and wonder if the CP is needed, or actually, deteriorate the signal by 3dB if the satellites are using linear antennae?? ___ 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: W4PUJ
It was with a sad heart I learned of his passing. I was fortunate to have been able to talk with Dick at several conferences and at his home in April 2007. He was quick to smile, always friendly, and eager to help newcomers. He will be long remembered by many, John WA4WDL -- From: "Martha" Sent: Wednesday, February 15, 2012 11:02 AM To: "Board of Directors" ; "AMSAT Officers" ; "AMSAT BB" Subject: [amsat-bb] W4PUJ It is with great sadness that I inform you of the death of Dick Daniels, W4PUJ at 8:00 PM last night. More information to follow. -- 73- Martha ___ 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: GPS Time observation
The difference between GPS time and UTC is adjusted as necessary. The adjustments come in the form of leap seconds and are added when needed at the end of June or December. The difference between GPS time and UTC is currently 15 seconds. There will be a leap second added this coming June 30. What is being seen is the casual user GPS receiver software does not put a high priority on time display. John WA4WDL -- From: "Jim Jerzycke" Sent: Thursday, February 02, 2012 3:18 PM To: Subject: [amsat-bb] Re: GPS Time observation I think this has something to do with "GPS Time" vs "Earth Time". IIRC, GPS time doesn't take into account the Leap Seconds that have been added to Earth time since the first GPS satellites have been launched. I think some of the newer receivers can compensate for this, but I'm not sure. It's been about 14 years since I last worked in the GPS industry, and I'm a bit rusty on all the new stuff! 73, Jim KQ6EA On 02/02/2012 04:57 PM, George and Cheryl Abbott wrote: I'm not sure about GPS,but I have noticed that the clock on our cable box is off by up to 4 seconds at times.Customer service was not aware or concerned when I let them know. -Original Message- From: Vince Fiscus, KB7ADL Sent: Thursday, February 02, 2012 10:28 AM To: amsat-bb@amsat.org Subject: [amsat-bb] GPS Time observation I have an old GPS unit, a Magellan explorist 210. It's fairly accurate determining position. After it has acquired about eight to ten satellites the position error averages between 20 to 35 feet. Now the question, the other day I was looking at one of the information pages the unit can display and on it, it gives the time in UTC. Just for fun I thought I would see how close the time was to WWV. I was surprised to see the unit was between one to four seconds off over various tests compared to WWV. IS this typical of all GPS units or do some display the time of day more accurately? KB7ADL ___ 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 ___ 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: GPS Time observation
You will find that most handheld GPS receivers sold for casual use have a displayed time error that varies from 0 to 4 seconds. The receiver software was designed with an emphasis on computing position and performing other tasks, such as routing, more than on displaying time. Hence the presentation of time is some times delayed. If time is of higher importance, then a specialized GPS timing receiver is needed. Look for one that outputs a 1PPS (one pulse per second) signal and comes with timing software. John WA4WDL -- From: "George and Cheryl Abbott" Sent: Thursday, February 02, 2012 11:57 AM To: ; "Vince Fiscus, KB7ADL" Subject: [amsat-bb] Re: GPS Time observation I'm not sure about GPS,but I have noticed that the clock on our cable box is off by up to 4 seconds at times.Customer service was not aware or concerned when I let them know. -Original Message- From: Vince Fiscus, KB7ADL Sent: Thursday, February 02, 2012 10:28 AM To: amsat-bb@amsat.org Subject: [amsat-bb] GPS Time observation I have an old GPS unit, a Magellan explorist 210. It's fairly accurate determining position. After it has acquired about eight to ten satellites the position error averages between 20 to 35 feet. Now the question, the other day I was looking at one of the information pages the unit can display and on it, it gives the time in UTC. Just for fun I thought I would see how close the time was to WWV. I was surprised to see the unit was between one to four seconds off over various tests compared to WWV. IS this typical of all GPS units or do some display the time of day more accurately? KB7ADL ___ 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: Charge for Satellite Tracking?
To paraphrase Yoda in Star Wars: Whine not. Do. Or do not. There is no whine. John WA4WDL -- Help if you want, don't if you don't. Simple enough. 73, Armando N8IGJ ___ 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 received spectrum
Well done! It is nice to see someone using a mixture of commercial and homemade equipment to make useful measurements. John WA4WDL -- From: "Roland Zurmely" Sent: Tuesday, October 18, 2011 3:27 PM To: "AMSAT" Subject: [amsat-bb] ARISSat received spectrum Today I copied the spectrum of signals received from ARISSat with an SDR-IQ (and homemade VHF / HFconverter ) and SpectraVue. The frequencies listed are the transmitted by satellite, and Doppler effectis clearly visible in the received signals, with higher frequencies at the beginning and lower at the end of the pass. The noise generated by linear transponder and the return of the transmission that I did in the UHF uplink are clearly visible. The CW-2 signal close to the 1kBPSK telemetry signalcan also be seen, as well as FM transmissions, switching between voice and SSTV. Please see here: http://www.qsl.net/py4zbz/arissat.htm#o 73 de Roland. ___ 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: Oscarlocator
I would like to see it. I have a linear one from the US Navy. It has a Mercator map with a transparent slide. You move the slide to the satellite longitude position, find your position through the transparency, and then read the elevation and azimuth angle from the slide markings. John WA4WDL -- From: "andy thomas" Sent: Friday, October 14, 2011 7:34 AM To: Subject: [amsat-bb] Re: Oscarlocator At the flea market in St Petersburg (Russia, not Fla!) this August I bought a Russian ex-ship "Oscarlocator"- type device for geostationary satellites in the Inmarsat series. It's a map of the world with the satellites marked on it along the equator, and a transparent plastic overlay from which you can read the az and el to the satellite from your position. It rotaes around a central screw. Obviously it'll work with any geostationary satellite once you have drawn it in. I have scanned all 3 components - map, overlay and Russian text - and translated the text. I sent it to amsat-uk for their bulletin but I don't think they are interested. Maybe nobody is. But if anyone is, let me know and I'll post it on my website. 73 de andy g0sfj ___ 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: Geostationary Satellites
There is also the issue that the commercial operator wants the Earth facing side of the satellite for their antennas. It is hard to find room for amateur band antennas. We ran into this problem while trying to get NASA payloads a ride on commercial satellites. John WA4WDL -- From: "Alan P. Biddle" Sent: Monday, October 10, 2011 5:50 PM To: "AMSAT-BB" Subject: [amsat-bb] Re: Geostationary Satellites Don, Cost, which is enough to drop any other issues to noise level. That is the High Rent District, and given how much the commercial users pay, they would not want to have an "amateur" satellite wandering around. More practically, it would be nice to have a package on a commercial satellite. They provide the power, pointing, and control. We just provide the RF. Again, cost, though we have been looking for the right opportunity. Another drawback is that a geosynch only provides coverage to _about_ a third of the earth, and it is always the same third. Birds like AO-13 and AO-40 covered just about all of it over the space of a few days. Did I mention cost? It is fun to think about having 3 which could be linked for true global coverage. Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of ka9qjg Sent: Monday, October 10, 2011 4:23 PM To: AMSAT-BB@amsat.org Subject: [amsat-bb] Geostationary Satellites Hello Hope Everyone is doing Well, I know people say no such thing as a dumb question So here goes What is the reason We do not have any Type of geostationary Satellites. Is it because they are for World Wide Use and If stationary one could Hit it 24/7 and Maybe park there butt on it and Run a Beam and Amp and take it over Thanks 73 De Don KA9QJG ___ 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: SarPC32 and local repeater
One thought would be to copy and use the keps from any geostationary satellite visible from your location. At least the Doppler would not be shifting. John WA4WDL -- From: "Ronald G. Parsons" Sent: Saturday, August 27, 2011 4:21 PM To: "AMSAT-BB" Subject: [amsat-bb] SarPC32 and local repeater Since I use the same radio (Icom IC-910H) for both satellite and local UHF/VHF repeaters, I’d like to be able to have SatPC32 automatically switch over the radio to satellite mode when a satellite is in view, and switch back to the repeater after LOS. I seems it should be possible to use “Automatic sat change ON” and have a dummy satellite in the satellite list configured to a local repeater. When a real satellite comes into view, SatPC32 would switch to that and when no real satellites are in view, the dummy satellite (repeater) would become active. My first idea would be to have the dummy satellite in the lowest satellite priority, and a dummy keps entry which would have the dummy satellite always in view. However, I don’t know how to construct such a keps element. Perhaps there is a more elegant way. Suggestions? Ron W5RKN ___ 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: ARISSat deployment direction?
With the speed reduction, the satellite drops to a lower orbit. The lower the orbit, the less time it takes to go around the Earth, hence it passes satellites in higher orbits. John WA4WDL -- From: "Rich Dailey" Sent: Monday, August 08, 2011 8:44 AM To: Subject: [amsat-bb] ARISSat deployment direction? > I've seen several comments and reports stating the deployment was > against the ISS velocity vector. Why do I see arissat out ahead of ISS > by a few hundred miles? Keps are current, and 3 tracking programs are in > agreement. Can someone provide enlightenment? tnx...:-) > > Rich, N8UX. > > ___ > 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: AO-51 Activity?
I think you will like the turnstile Moxon. I recently, last week, fabricated one for receiving Russian navigation satellites on 149.940 to 150.030 MHz and was very pleased. It replaces a commercial QFH I had in my attic. I used 3/4" wide aluminum straps for the elements, a 90 degree hybrid coupler instead of the phasing network, and held the ends of the elements in alignment with 3/4" wide strips of bare G-10 printed circuit boards. John WA4WDL -- From: "Richard Lawn" Sent: Monday, July 18, 2011 11:27 PM To: "Andrew Glasbrenner" Cc: Subject: [amsat-bb] Re: AO-51 Activity? > Yes I knew about freq change. All I can assume is that the home brew > k5oe isn't up to the task and I will turnstile moxon in a week when I > get back to this vacation qth. > Tnx > Rick > W2jaz > > On Monday, July 18, 2011, Andrew Glasbrenner > wrote: >> Have you looked at the schedule page? We are on 435.150 down now. >> >> 73, Drew KO4MA >> >> Sent from my iPhone >> >> On Jul 18, 2011, at 4:41 PM, Richard Lawn wrote: >> >>> As some of you may recall, I've been doing my best to make and try >>> various >>> stationary antennas. It's been tough testing them since not many birds >>> seem >>> active, particularly AO-51 which I usually heard well. Can anyone tell >>> me if >>> AO-51 was functioning during the pass at around 16:30 EDT on 7/18. I >>> haven't >>> heard a peep out of it but have heard a few other birds. >>> TNX >>> Rick >>> W2JAZ >>> ___ >>> 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: A Proposal for ARISS
Good thoughts! Echoes and elaborates on my email. John WA4WDL -- From: "Edward R. Cole" Sent: Friday, July 01, 2011 4:54 PM To: Subject: [amsat-bb] A Proposal for ARISS > After posting some thoughts a few days ago (RE: ISS, what the heck > happened?), I have given the idea more consideration. > > Proposal (ARISS on ISS): > 1) Install a 100-KHz transponder unit on ISS, with usual digital > beacon/engineering > 2) It would run mode-UV > 3) Installed internally in the ISS > 4) Replace most of the current ISS ham radio equipment > 5) Could be considered an upgrade/improvement to the existing ham radio > on ISS > 6) Use ISS power and existing ham radio antenna infrastructure (no > solar panels)(no thermal requirements for space environ)(perhaps less > radiation hardening) > 7) Use batteries for stand-alone operation (recharged from ISS power) > 8) Control commanded from ground (no intervention required by astronauts) > 9) Local access for use of astronaut-hams > 10) Provide emergency back-up comms for ISS (perhaps with a separate > FM channel) > 11) (perhaps) Use of existing ham-radio handheld on ISS on low-power > to dedicated receiver which would activate astronaut repeater channel. > 12) This FM channel could be used as FM ham repeater when not in use > by astronauts (means world-wide monitoring for the astronauts as > well as normal Leo FM activity) > 13) Modular design for future upgrades and/or repair (easy > installation by astronauts-plug*n*play) > 14) Segmented pass-band to allow packet/APRS digipeating > 15) Transmitters able to be shut down for eva and other critical > missions either locally on ISS or from ground. > 16) Perhaps a special Rx/Tx on ISS eva channel for cross-band repeat > in event of loss of atmosphere emergency (help to sell the concept to > NASA as a comms back-up). > 17) No need for orientation (spin or de-spin), rad hardening, > thermal structures (air-cooled), no propulsion, no launch requirements. > 18) Easily maintained by supply from ground (repairs or upgrades). > 19) Long-Life > > Re-direct of either Fox or P3E efforts? (no launch requirement-rides > as cargo to ISS) > > > 73, Ed - KL7UW, WD2XSH/45 > == > BP40IQ 500 KHz - 10-GHz www.kl7uw.com > EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-? > DUBUS Magazine USA Rep dubus...@gmail.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: [AMSAT-BB] ISS, what the heck happened?
I also agree. We do not require the astronauts to be in the loop. We need the communications port, particularly one that can be repaired or replaced and can be reprogrammed from Earth. The astronauts are most assuredly encouraged to participate. NASA can blank the output during critical times. John WA4WDL -- From: "i8cvs" Sent: Wednesday, June 29, 2011 9:42 PM To: "amsat-bb" ; "Edward R. Cole" Subject: [amsat-bb] Re: [AMSAT-BB] ISS, what the heck happened? > Hi Ed, KL7UW > > I agree completely with you on a hi power continuously operating U/V > linear transponder on board of the ISS may be 100 KHz BW because it > can be used as well for emergency communications on the earth without > intervention of the astronauts. > > 73" de > > i8CVS Domenico > > - Original Message - > From: "Edward R. Cole" > To: "amsat-bb" > Sent: Wednesday, June 29, 2011 10:24 PM > Subject: [amsat-bb] Re: [AMSAT-BB] ISS, what the heck happened? > > >> Wasn't going to comment, but oh heck! >> >> I think Alex has it pegged. I see a lot of Astronauts getting their >> ham license but figure that is probably NASA "encouraged" mainly for >> PR purposes and secondarily for emergency comms if the main systems >> fail. It is likely many Astronauts are not particularly interested >> in ham radio, per se. I'll admit making your first contact with >> either the shuttle or ISS is a thrill and fun, but the opportunities >> may be not that frequent, nor should any ham expect it to be so. >> - >> Now on a related subject, I would really favor Amsat approaching NASA >> for the installation of a linear transponder (say Mode UV) unit to be >> attached to the exterior of ISS (with remote shut-off for ISS >> critical operations). This may be a better option to finding/paying >> for launch opportunities for free orbiting linear-transponder >> satellites. Since there is a regular launch schedule to resupply ISS >> and no propellant/engine would be involved it would be a benign cargo > item. >> >> I do not underestimate the difficulty quotient for such a mission, >> but we do have ham gear installed on ISS, and have done Suitsat and >> ARISSat with NASA and ISS. >> >> If no launch is forthcoming for P3E perhaps the backup unit (sans >> propellant system and solar panels) could be considered? It would be >> in a Leo orbit but at least it would provide a long-term alternative >> to FM Leos. >> >> Something to chew on and consider? >> >> 73, Ed - KL7UW >> >> At 05:57 AM 6/29/2011, Alexander Sack wrote: >> >On Wed, Jun 29, 2011 at 7:40 AM, KM9U wrote: >> > > >> > > >> > >>> So I think everyone read the announcement ARRL made before FD. Now >> > >>> that FD weekend is at an end, can someone explain to me why NASA >> > >>> couldn't let the astronauts have 10 minutes on the radio for one > pass? >> > >>> I mean were they having issues with the radio itself? >> > > >> > > During Expedition 24/25, Col. Wheelock made many contacts from the >> > > ISS > in >> > > the evenings and on weekends during his free time. This was not > because he >> > > was "scheduled" to be the radio, but rather because he enjoyed doing > it. >> > > I don't believe we can blame NASA for the current crew members >> > > obvious > lack >> > > of interest in Amateur Radio. Had Col. Wheelock (or someone as >> > enthustiastic >> > > as he) been aboard the ISS on FD, NA1SS would likely not have been > silent. >> > > >> > >> Have you never make a calculation or an estimation on how it costs a > 10 >> > >> minutes of an astronaut activity all costs including on board of the > ISS ? >> > >> >I don't buy it. >> > >> >What I do believe is the current crew isn't that interested in making >> >contacts with amateur radio operators. That's fine. Operating the >> >radio outside the educational outreach program is ertainly not part of >> >their mission. I will just have to be more patient and hope someone >> >gets the ham bug up there during some mission and starts to make >> >contacts. I can wait. >> > >> >I DO want to state again I think it behooves NASA and the whole space >> >program to try to get someone on that radio like a Col Wheelock >> >(doesn't have to be as frequent as Col Wheelock) to generate the >> >enthusiasm and excitement for the ISS and the whole space program >> >among hams. My 2 cents. >> > >> > > This brings up an interesting thought. The astronauts receive >> > > monetary >> > > compensation for performing their duties while employed by NASA. So, > if >> > > their employer schedules them to operate amateur radio as part of > their job >> > > assignment, would this not violate Part 97.113 (Prohibited > transmissions) >> > > which specifically prohibits "Communications in which the station > licensee >> > > or control operator has a pecuniary interest, including >> > > communications > on >> > > behalf of an employer". >> > > Now, DON'T GET YOUR PANTIES IN
[amsat-bb] Re: AMSAT Board & political opinion- take this somewhere else
Please take this somewhere else. John WA4WDL -- From: "Nigel A. Gunn" Sent: Wednesday, June 29, 2011 5:25 PM To: "Ted" Cc: ; "'Gordon JC Pearce'" Subject: [amsat-bb] Re: AMSAT Board & political opinion > Ted. > As, for decades, the US government has seen fit to force itself upon any > country with which it doesn't agree, anyone, anywhere has a right to an > opinion, even if it doesn't suit you. > > I don't agree with Gordon most of the time but he has a right. > > > > On 29/06/11 22:11, Ted wrote: >> Also,your 'opinion' on our country is of very little interest to me. >> >> TK, K7TRK > > ___ > 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: FD Mess
So if there are three stations operating, only two can make a contact because the once two make contact with each other neither can contact the third. John WA4WDL -- From: "Tom Schaefer, NY4I" Sent: Monday, June 27, 2011 11:36 AM To: Cc: "AMSAT" Subject: [amsat-bb] Re: FD Mess > My game plan was to listen to the zoo on the FM birds just for kicks but > use the linear birds for real contacts. After missing out last year as I > was a complete SAT newbie, I snagged a contact with first pass on FO-29 > with W3AO (25A MDC). I got a few more contacts on VO-52 before our washout > send us packing. > > All it took this year was an IC 9100, 2m/440 SAT beam, MacDoppler and a > rotator. Next year it is back to the Arrow and the tripod but it was fun > getting that one contact this year versus missing out last year. > > One suggestion on the multiple FM contacts…if you know any calls that were > making multiple contacts, call them out here. Granted, the call may be the > field day call, but I did hear guys that were 1D (at home) making more > than one contact. I just don't remember the calls. Peer pressure is a > wonderful thing to correct bad behavior. We should single operators that > don't play by the rules just as I would hope someone would let me know if > I was doing something stupid on a pass. > > BTW, I was W4TA 5A West Central Florida this year. > > 73, > > > Tom Schaefer, NY4I > n...@arrl.net > EL88pb > Monitoring EchoLink node KJ4FEC-L 489389 > DSTAR Capable APRS: NY4I-15 > > > > On Jun 27, 2011, at 11:13 AM, wa4...@comcast.net wrote: > >> It took me 5 satellite passes before I could make 1 contact There were >> too many ops making what sounded like HI POWER multi contacts .This >> should not have happened. Maybe someone with good writting skills could >> send the ARRL world above 50 an artical on how to work the birds during >> FD >> WA4HFN em55 Damon >> ___ >> 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: AO7-Excess transmit power
I agree that many people use too much power. But, remember it is not just the output power that counts, it is also affected by the antenna gain. 10W into a dipole is about the same in terms of effective radiated power as 1W into a 12-13 dB gain Yagi. John WA4WDL -- From: "Dean Maluski" Sent: Sunday, May 22, 2011 9:45 AM To: "AMSAT-BB" Subject: [amsat-bb] AO7-Excess transmit power > Yesterday I was working/listening and waiting AO7 SSB VHF/UHF, One > station was booming in. Call sign intentionally not posted to skip their > possible embarrassment. Midway thru the pass the signals went dead. No > receive at all. If I recall from reading my theory he was likely hitting > bird with 100 watts and used up the batteries in bird. > Am I on track? > Also, last week I was working a 6 land station who was proudly boasting > 100 watts, Yikes, I never use more than 20 watts and my signal makes it > no problem. > > de n1ety > > ___ > 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: Funnies
Other than the moon, I would have to vote for OSCAR 6. John WA4WDL -- From: "Ted" Sent: Thursday, May 05, 2011 7:30 PM To: "'Kevin Deane'" ; Subject: [amsat-bb] Re: Funnies > I have it on good authority that Loren, K7CWQ, worked Sputnik... > > Ted, K7TRK > > -Original Message- > From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On > Behalf Of Kevin Deane > Sent: Thursday, May 05, 2011 3:41 PM > To: amsat-bb@amsat.org > Subject: [amsat-bb] Funnies > > > > Since Ham Radio cartoon funnies seem to be so hard to come by, I have been > making my own. I was hoping I could find out from you guy's what was the > OLDEST and BEST sat you all got to use so I could make them more > interesting...Basically lookin for the oldtimers fav, something before my > time if you will. > > I know Amsat has good info on all of them, just do not know the right one > or > one's to pick for my project. > > I have had good feedback on them so far, I thought I might circulate them > publicly seeing how postage would get a little expensive... > > Kevin > KF7MYK > > ___ > 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: MMDS Downconv Information
Or try: http://www.cqham.ru/image2/cal-amp-dc_big.gif John WA4WDL -- From: "jmfranke" Sent: Thursday, April 28, 2011 10:10 PM To: "i8cvs" ; "Amsat - BBs" ; "Giulio P. AOL" Subject: [amsat-bb] Re: MMDS Downconv Information > Start at: > > http://translate.google.com/translate?hl=en&sl=ru&u=http://www.cqham.ru/ao40_equip.htm&ei=mrGkTJHfOJDSsAO6ypT-Dg&sa=X&oi=translate&ct=result&resnum=9&ved=0CDwQ7gEwCDgK&prev=/search%3Fq%3DCalamp%2B31732%26start%3D10%26hl%3Den%26sa%3DN%26prmd%3Div > > > John WA4WDL > > -- > From: "i8cvs" > Sent: Thursday, April 28, 2011 7:29 PM > To: "Amsat - BBs" ; "Giulio P. AOL" > > Subject: [amsat-bb] Re: MMDS Downconv Information > >> - Original Message - >> From: "Giulio P. AOL" >> To: >> Sent: Friday, April 29, 2011 12:10 AM >> Subject: [amsat-bb] MMDS Downconv Information >>> >>> Hi Guys, i have a couple of California Amplifier Part. 130015 and >>> 13001, >> does anyone have some info's on how > to modify the internal IF (2278 >> Mhz) >> to a new value below 2000 Mhz? >>> Thanks >>> >>> Giulio AB2VY >>> Toms River NJ 08756 >> >> Hi Giulio, AB2VY >> >> The friend Al, W8KHP >> >> w8...@amsat.org or tok...@myranch.com >> >> was recently looking for the same information, see belowe. >> >> http://www.mail-archive.com/amsat-bb@amsat.org/msg13048.html >> >> He probably already found what you need. >> >> 73" de >> >> i8CVS Domenico >> >> ___ >> 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: MMDS Downconv Information
You might want to check those numbers, I believe the second might be a common model 130001 downconverter. I am working on an article showing how to modify the local oscillator and to use the FB506 prescaler as part of a 10 Hz to 2.8 GHz frequency counter. John WA4WDL -- From: "i8cvs" Sent: Thursday, April 28, 2011 7:29 PM To: "Amsat - BBs" ; "Giulio P. AOL" Subject: [amsat-bb] Re: MMDS Downconv Information > - Original Message - > From: "Giulio P. AOL" > To: > Sent: Friday, April 29, 2011 12:10 AM > Subject: [amsat-bb] MMDS Downconv Information >> >> Hi Guys, i have a couple of California Amplifier Part. 130015 and 13001, > does anyone have some info's on how > to modify the internal IF (2278 Mhz) > to a new value below 2000 Mhz? >> Thanks >> >> Giulio AB2VY >> Toms River NJ 08756 > > Hi Giulio, AB2VY > > The friend Al, W8KHP > > w8...@amsat.org or tok...@myranch.com > > was recently looking for the same information, see belowe. > > http://www.mail-archive.com/amsat-bb@amsat.org/msg13048.html > > He probably already found what you need. > > 73" de > > i8CVS Domenico > > ___ > 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: MMDS Downconv Information
Start at: http://translate.google.com/translate?hl=en&sl=ru&u=http://www.cqham.ru/ao40_equip.htm&ei=mrGkTJHfOJDSsAO6ypT-Dg&sa=X&oi=translate&ct=result&resnum=9&ved=0CDwQ7gEwCDgK&prev=/search%3Fq%3DCalamp%2B31732%26start%3D10%26hl%3Den%26sa%3DN%26prmd%3Div John WA4WDL -- From: "i8cvs" Sent: Thursday, April 28, 2011 7:29 PM To: "Amsat - BBs" ; "Giulio P. AOL" Subject: [amsat-bb] Re: MMDS Downconv Information > - Original Message - > From: "Giulio P. AOL" > To: > Sent: Friday, April 29, 2011 12:10 AM > Subject: [amsat-bb] MMDS Downconv Information >> >> Hi Guys, i have a couple of California Amplifier Part. 130015 and 13001, > does anyone have some info's on how > to modify the internal IF (2278 Mhz) > to a new value below 2000 Mhz? >> Thanks >> >> Giulio AB2VY >> Toms River NJ 08756 > > Hi Giulio, AB2VY > > The friend Al, W8KHP > > w8...@amsat.org or tok...@myranch.com > > was recently looking for the same information, see belowe. > > http://www.mail-archive.com/amsat-bb@amsat.org/msg13048.html > > He probably already found what you need. > > 73" de > > i8CVS Domenico > > ___ > 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: OT: NASA Website access?
No problem here accessing NASA.com or http://www.nasa.gov/multimedia/nasatv/index.html John WA4WDL -- From: Sent: Saturday, February 26, 2011 1:11 PM To: Subject: [amsat-bb] OT: NASA Website access? > Am I the only one having issues accessing nasa.gov? It fails on Verizon > and Frontier Networks. Google has no new news. It seems the entry is gone > from any DNS I can do a lookup on... > > Could very well be my cloud has turned against me > Dave > > __ > Dave Donaldson > HAM:WB7DRU > Navy/MC MARS:NNN0AXK > Burnsville, MN > Sent from my android device. > ___ > 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: AO-51 schedule for February, March 2011
Thanks for the assortment of modes and especially for the heads up!! John WA4WDL -- From: "Mark L. Hammond" Sent: Thursday, February 24, 2011 3:00 PM To: "Amsat - BBs" Cc: Subject: [amsat-bb] AO-51 schedule for February, March 2011 > Hello All, > > Here is the AO-51 schedule for the next few weeks. There is a little > bit of something for everyone in here! > > Keep in mind that the schedule is subject to change due to power > budget and/or telemetry downloading. > > > February 21 (~2145 UTC) [Eclipses should end around Feb. 24/25] > > Dual Voice Repeaters : > Mode V/U FM Voice Repeater (no PL tone needed) > Uplink: 145.920 MHz FM > Downlink 435.300 MHz FM > > Mode L/U FM Voice Repeater (no PL tone needed) > Uplink: 1268.703 MHz FM > Downlink 435.150 MHz FM > > > February 27 (~2100 UTC) > > Mode V/S Voice Repeater (no PL tone needed) > Uplink: 145.880 MHz FM > Downlink 2401.200 MHz FM > > > March 3 (~1030 UTC) > > Mode V/U FM Voice Repeater (no PL tone needed) > Uplink: 145.920 MHz FM > Downlink 435.300 MHz FM > > Mode L/U PacSat BBS > Uplink: 1268.703 MHz FSK 9k6 baud > Downlink 435.150 MHz FSK 9k6 baud > > > March 6 (~2115 UTC) > > Mode L/SU FM Voice Repeater (no PL tone needed) > Uplink: 1268.703 MHz FM > Downlink1 2401.200 MHz FM > Downlink2 435.300 MHz FM (low power) > > > March 11 (~1000 UTC) [Eclipses return around March 12/13] > > Mode V/U FM Voice Repeater (no PL tone needed) > Uplink: 145.920 MHz FM > Downlink 435.300 MHz FM > > Mode L/U PacSat BBS > Uplink: 1268.703 MHz 9k6 baud > Downlink 435.150 MHz 9k6 baud > > > As always, command stations may need to reconfigure modes in order to > collect telemetry as needed. > > Remember that power management may be running, and the transmitter(s) > will shut > OFF during periods of eclipse and/or low battery voltage. > > 73, > > Mark N8MH > AO-51 Command Team > ___ > 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: Fwd: 420 MHz in Jeopardy!
Our presence there is secondary and the prime user has a much larger financial and national security commitment for keeping the band clear of others. I hope the US military takes the appropriate actions to protect the bands for their use and thereby ours. John WA4WDL -- From: "Patrick Green" Sent: Monday, February 21, 2011 6:22 PM To: "Amsat BB" Subject: [amsat-bb] Re: Fwd: 420 MHz in Jeopardy! > Auctioning off spectrum that includes the important 435-438 Satellite > segment? Let alone that 430-440 is a ham band almost everywhere in > the world. > > 73 de Pat --- KA9SCF. ___ 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: AMSAT-FOX
It is the sixth satellite of the microsat series so is given the letter F until orbit is achieved. The phonetic conversion for F is Fox as Echo was for the fifth satellite or E. John WA4WDL #10211 -- > From: "Clint Bradford" > Sent: Tuesday, February 15, 2011 6:08 PM > To: "AMSAT BB" > Subject: [amsat-bb] AMSAT-FOX > >> Is "FOX" an acronym? If not, is the formal title of the project, >> "AMSAT-Fox" or "AMSAT-FOX"? >> >> Hey - I am married to the owner of http://www.thegrammarbitch.com - a >> title she earned from appreciative co-workers ... (grin) >> >> Clint, K6LCS >> ___ >> 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: Ao51 Protocol ?
Another part of the solution would be to operate AO-51 in V/S or L/S more often. John WA4WDL -- From: "WILLIAMS MICHAEL" Sent: Tuesday, January 11, 2011 11:14 AM To: Subject: [amsat-bb] Re: Ao51 Protocol ? > Domenico, I8CVS said: > > "To solve the above problem the only way is to use satellites with linear > transponder like VO-52. OSCAR-7 and FO-29 with several QSO on CW > and SSB at the same time without QRM in the same passband." > > - > > These multiple QSOs at the same time can also be full duplex. > > 73, > > Mike Williams, K9QHO > > > > > ___ > Sent via amsat...@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: AO-51 S-Band antenna polarization
Many thanks to all who responded. The additional references were great! Thanks to all, John WA4WDL -- From: "Alan P. Biddle" Sent: Tuesday, December 21, 2010 3:10 PM To: "'jmfranke'" ; Subject: RE: [amsat-bb] AO-51 S-Band antenna polarization > John, > > It is linear. You are right that the information exists, but is sometimes > not readily available. A good place to look is the Weekly Satellite > Report > which AMSAT distributes. For many, but not all satellites, that > information > is just below the frequency information. For AO-51 we find: > > Mode and Antenna Polarization: > > V: Linear > U: TX A (usually digital)LHCP > TX B (usually analog) RHCP > L: Linear > S: Linear > > Alan > WA4SCA > > > > > > > -Original Message- > From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On > Behalf Of jmfranke > Sent: Tuesday, December 21, 2010 1:57 PM > To: amsat-bb@amsat.org > Subject: [amsat-bb] AO-51 S-Band antenna polarization > > Does anyone know the polarization of the 2.4 GHz transmissions from AO-51. > Are they circular? If so which polarity, RHCP or LHCP? Are they linear? > If so is there a preferred receiving polarization? I have examined the > AMSAT web site and many references on the Internet, but cannot seem to > find > the answer. > > Thanks, > > John WA4WDL AMSAT member 10211 > > > ___ > 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] AO-51 S-Band antenna polarization
Does anyone know the polarization of the 2.4 GHz transmissions from AO-51. Are they circular? If so which polarity, RHCP or LHCP? Are they linear? If so is there a preferred receiving polarization? I have examined the AMSAT web site and many references on the Internet, but cannot seem to find the answer. Thanks, John WA4WDL AMSAT member 10211 ___ 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: Demonstrator Rotator Setup
For starters, take a look at: http://ka6puw.tripod.com/azimuth1.html John WA4WDL -- From: "Clint Bradford" Sent: Monday, December 13, 2010 12:49 PM To: "AMSAT BB" Cc: "ARISS-ops OPS" Subject: [amsat-bb] Demonstrator Rotator Setup > I have an inquiry from a gentleman who would like to show the "dramatic > sight" of a computer-controlled small Yagi tracking a satellite while in a > convention booth - but not necessarily a full-blown Yaesu G-5500. > > If I am not making sense, just ask ... (grin) > > He is thinking 12VDC, laptop, just a six-foot mast with an Arrow-like > antenna, Ham Radio Deluxe(?), "smaller" radio like a FT-817ND)?) ... > > Brainstorming welcome! > > Many thanks. > > Clint Bradford, K6LCS > 909-241-7666 > ___ > 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] Launch opportunity
http://www.nasa.gov/directorates/somd/home/CubeSats_initiative.html John WA4WDL ___ 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: Two Chinese Sats ...
I agree, especially since China expressed the fact that they will be orbiting a space station soon and rendezvous and docking is a necessary technology. These are exciting times, more space projects and more orbiting technology. John WA4WDL -- From: "Ted" Sent: Wednesday, September 01, 2010 8:59 PM To: "'Clint Bradford'" ; Subject: [amsat-bb] Re: Two Chinese Sats ... > IMHO starting to have political commentary on this forum is going down the > wrong road and inappropriate > > Ted > K7TRK > > -Original Message- > From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On > Behalf Of Clint Bradford > Sent: Wednesday, September 01, 2010 12:06 PM > To: amsat-bb@amsat.org > Subject: [amsat-bb] Two Chinese Sats ... > > China's Secret Satellite Rendezvous 'Suggestive of a Military Program > > http://feeds.wired.com/~r/wired/index/~3/-1HfERcgJaA/ > > A pair of Chinese satellites have met in orbit. It's either a sign of > China's increasingly sophisticated space program or a sign of its > increasingly sophisticated space warfare program. > > Clint > ___ > 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: Sat Dishes and P3E Q's
Ron, In general, dish antennas should be used at frequencies that have wavelengths shorter than one tenth the diameter or width of the dish and the dish must have a suitable surface smoothness and accuracy. Without knowing more, I suspect the two dishes will work for the 2.4 GHz through 10 GHz bands. Of course, you will have to design and build suitable feeds for the dishes. One of the best references is: http://www.w1ghz.org/antbook/preface.htm John WA4WDL -- From: "Ron Overdrive" Sent: Wednesday, August 11, 2010 1:33 PM To: Subject: [amsat-bb] Sat Dishes and P3E Q's > I am curious how things are coming along with Phase 3 Express (P3E) as the > current official websites don't tell me much. The last bit of updates seem > to be from 2005 with an expected launch date of 2007 - 2008 which was 2 - > 3 > years ago. Since there's no info about it being active I'm guessing P3E > hasn't be launched yet. > > The reason I'm asking is because I came across 2 Dish Network dishes that > a > friend had sitting in his junk room that he acquired from the previous > owner > of his home. One is a smaller dish labeled Dish 500 which I'm guessing is > a > Ku-Band dish and a larger one labeled Dish Plus which I'm assuming is a > C-band dish. As you probably have guessed I want to use these for AMSAT > work > and I don't know much about parabolic dishes so all I have are guesses for > what bands they work on so if anyone can point me in the right direction > to > figure this out please do. > ___ > 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: HELIX REFLECTOR?
According to the W1GHZ antenna book at : http://www.w1ghz.org/antbook/conf/Helical_feed_antennas.pdf "The ground plane diameter is typically 0.94? in diameter" or about 25.25" for 440 MHz. John WA4WDL -- From: "Pete Norris, K1HZU" Sent: Thursday, June 03, 2010 8:51 PM To: Subject: [amsat-bb] HELIX REFLECTOR? > 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 > ___ 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: help, LEO navigational question
ITAR rules and restrictions apply to anyone exporting ITAR controlled information from the United States. It does not matter if the information is in regard to other country technology or where it came from. ITAR restricts me from discussing Soviet, Chinese, English, Iranian, or US satellite technology. There are exceptions but I would advise you to read the ITAR (22 CFR 120-130), it is readily available. ITAR does not control exports from other countries by non-US persons. They have their own laws and regulations. John WA4WDL -- From: "jlv" Sent: Saturday, March 06, 2010 6:38 PM To: Subject: [amsat-bb] Re: help, LEO navigational question > Ja! the ISS is very big for my in this life > > Does ITAR laws only apply for US satellites or also for satellites of > other > countries? > Does US apply restrictions in this topic for all the satellites in orbit? > I don't almost find any information of any satellite, of their systems of > position detection. > > 73..Luis > CX2AN > > > > - Original Message - > From: "jmfranke" > To: "jlv" ; > Sent: Saturday, March 06, 2010 8:11 PM > Subject: [amsat-bb] Re: help, LEO navigational question > > >> If it is not the ISS, the answer is YES. >> >> John WA4WDL > > ___ > 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: help, LEO navigational question
If it is not the ISS, the answer is YES. John WA4WDL -- From: "jlv" Sent: Saturday, March 06, 2010 5:04 PM To: Subject: [amsat-bb] help, LEO navigational question > Sorry...but.. > I am thinking.. > Does ITAR laws also include the cubesats and other radioamateur > satellites?? > > > 73.. Luis > CX2AN > ___ > 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: Max range apogee vs perigee
The numbers assume the antenna is on the surface of the Earth. You must add the distance from the antenna to the local horizon to the calculated figures. And, there is refraction. John WA4WDL -- From: "Pierre van Deventer" Sent: Friday, February 26, 2010 2:31 AM To: Subject: [amsat-bb] Max range apogee vs perigee > Bob W7LRD > > > I came across this info, might be of some value. > > Ref: The Satellite Experimenters Handbook, Pg 9-6 > > Max Dist (range) = 2R * arcos [R/(R+h)] > > Where R = 6,371 km and > h = 1,459 km at Apogee (AO-7) > h = 1,440 km at Perigee (AO-7) > > Therefore the maximum possible communication distance via AO-7 at Apogee = > 7,904 km. > Therefore the maximum possible communication distance via AO-7 at Perigee > = > 7,861 km. > > The difference in range from apogee to perigee appears to be only 33 km. > > > 73, Pierre ZS6BB > > > ___ > 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: Compact Quadrifilar Helix antenna
I have both the RHCP and LHCP receiver versions, but with a house move, I have not had the opportunity to test them. John WA4WDL -- From: "Andrew Glasbrenner" Sent: Wednesday, December 30, 2009 1:14 PM To: "Jeff Kelly" Cc: "amsat-bb" Subject: [amsat-bb] Re: Compact Quadrifilar Helix antenna > Jeff Kelly wrote: >> This antenna has been out for a while: >> >> http://www.antennas.us/store/p/229-UC-4364-328-Amateur-Satellite-antenna.html >> >> any feedback on it? >> >> Jeff >> KT2K >> ___ >> 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 >> >> > Works OK with a good preamp. I have one mounted on my Explorer with some > magnets from Harbor Freight, and an ARR preamp. Lots of guys here in > deed-restricted communes, err, communities use them because of their > stealth qualities. > > 73, Drew KO4MA > ___ > Sent via amsat...@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > ___ 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: using a microsat as a potential high altitude VHFreflector
One drawback of the design was the high drag from such a large structure, coupled with the low mass. The end result was a satellite with a low ballistic coefficient and hence a short lifetime. John WA4WDL -- From: "Samudra Haque" Sent: Wednesday, October 28, 2009 3:46 PM To: "Amsat-bb" Subject: [amsat-bb] using a microsat as a potential high altitude VHFreflector > Hi all, > > I read with interest an article on the web "ECHO - America's First > Communications Satellite" By John R. Pierce which is available here: > http://www.smecc.org/john_pierce___echoredo.htm > > I know ham radio operators love using their hand helds to communicate > using active transponders or active repeaters in space... no issue > with that. > > were there any ham radio projects (either through amsat-na or abroad) > that implemented a passive reflector on an orbital vehicle like > Project Echo > > I quote from > http://www.satmagazine.com/cgi-bin/display_article.cgi?number=490218137 > > The Echo-1 Balloon Satellite as it sits, fully inflated, at a Navy > hangar in Weeksville, North Carolina. The spacecraft measured 100 feet > across when deployed, and was nicknamed a ‘satelloon’ by those > involved in the project. The mylar film balloon acted as a passive > communications reflector for transcontinental and intercontinental > telephone (voice), radio and television signals. Echo 1 re-entered the > atmosphere May 24, 1968. > > > What strikes me is the implications of a large large very large > antenna (reflector), if only it could be reflective on one side of the > sphere only (any ideas?) > > The Echo 2 was a 135-foot rigidized inflatable balloon satellite. The > satellite is shown undergoing tensile stress test in a dirigible > hanger at Weekesville. The satellite, 50 times more rigidized than > Echo I. When folded, the satellite is packed into the 41-inch diameter > canister shown in the foreground. > > Did early amsat folks consider duplicating / adding to any of these > projects or launch their own 'satelloon' that did not carry an active > RF payload ? Could we outfit one of our future microsats to provide a > reflector to aid in Earth-LEO DXing like meteor-scatter ? > > > > 73 de Samudra, N3RDX > > ___ > 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: rotator questions
Or go to: http://www.usno.navy.mil/USNO/astronomical-applications/data-services/alt-az-us enter your location and get the azimuth of the Sun for every 10 minutes so you do not have to worry as much about clouds or trees, etc. John WA4WDL Daniel Schultz wrote: > To find true north at your QTH: > > Go to > http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-day-us > > Enter your nearest city and state into the menu > > If you prefer to enter latitude and longitude, or if you are outside of the > USA, go to > http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-day-world > > You will get a chart like this for your location: > > Thursday > 13 August 2009Eastern Daylight Time > > SUN > Begin civil twilight 5:50 a.m. > Sunrise6:19 a.m. > Sun transit1:12 p.m. > Sunset 8:05 p.m. > End civil twilight 8:33 p.m. > > MOON > Moonrise 11:04 p.m. on preceding day > Moon transit 6:29 a.m. > Moonset2:04 p.m. > Moonrise 11:44 p.m. > Moonset3:13 p.m. on following day > > Make a note of the "Sun transit" time. Set your watch by WWV or some other > reliable time source. Drive a stake in the ground (use a plumb line to make > sure it is vertical). Go outside at the exact moment of the sun transit, at > that time the shadow of the stake (or your tower if it is vertical) will be > true north. Mark the ground at that exact time. > > Dan Schultz N8FGV > > > > ___ > 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: ANDE-2 Deployment
No he means FX.25: >From the Milcom/BTown blogs: "The communications board contains the transmitter and receiver. The transmitter operates at 2 meters and can put out up to 1 watt of signal. Power level is adjustable. The transmitter can operate at 1200 baud AFSK and 9600 baud FSK. The transmitter uses the AX.25 protocol. An experimental FX.25 protocol will be tested that adds forward error correction capability to the AX.25 protocol and still allows typical TNCs to decode the packets. John -- From: "Nigel G8IFF/W8IFF" Sent: Wednesday, July 29, 2009 1:06 PM To: "Robin Theunis" Cc: "Ivan Galysh" ; Subject: [amsat-bb] Re: ANDE-2 Deployment > You mean AX25 TNC? > Your local amateur radio dealer should have them or you can implement it > is software. > Free programmes are available. > > Robin Theunis wrote: >> Where can you get those FX-25 TNC? >> >> >> Robin >> ON8RTH >> >> > > ___ > 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: 10GHZ transceiver
I believe the waveguide is WR-75 which is rated for 10-15 GHz, but I also believe the system will not move down to the 3cm amateur radio band without serious modifications. John WA4WDL -- From: "Luc Leblanc" Sent: Thursday, May 28, 2009 1:03 PM To: Subject: [amsat-bb] Re: 10GHZ transceiver > On 28 May 2009 at 12:26, n1...@burlingtontelecom.net wrote: > >> Hi Luc, >> What are you exactly trying to do? Are you trying to convert this into a >> 10 GHz transverter for use terrestrially on 10.368 GHz? Or are you >> looking at converting to a 'receive only' system on 10.450 GHz (P3E) >> >> From everything I've seen on these units, the transmit portion is Ku band >> and won't move down to 10 GHz (internally matched) >> >> >> 73, >> Mike, N1JEZ >> > > If feasable both as there is the TX and the RX on the same body. I think > someone play with this unit as a handwriting note appears as "10- > 15GHZ KU" but i have no clue for the transmit IF value nor the RX IF too. > Is it possible theses unit can be wide enough to cover from 10 > to 15GHZ it seems to be a bit extreme. > > Without any specs it is hard to come up with some solution to have it > working in our bands. > "-" > > > Luc Leblanc VE2DWE > Skype VE2DWE > www.qsl.net/ve2dwe > WAC BASIC CW PHONE SATELLITE > > > > ___ > 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
