[amsat-bb] ARISSat-1 CW and BPSK-1000 telemetry heard over Vietnam
Hello everyone, This morning I had a good pass of ARISSat-1 over Hanoi, Vietnam and decoded its BPSK-1000 for the first time. According to ARISSatTLM, more than 30 frames were sent to the server out of more than 60 decoded. Manually tuning the CW signal to keep it within range is fun and it was audible until the satellite was 1.5 degree under the horizon. Maybe next time I'll try the transponder :) 73, Thu XV9AA ___ 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] ARISSAT-1 Pass Over DO33 2011-08-31
The FM telemetry downlink was initially acquired at 0014 UTC with the end of the SSTV transmission. The signal was barely audible. Transmission resumed at 0016 with S9+ strength, no noise, and the following details: - ID - Greeting in English - Secret word - MET = 45 minutes - IHU temp. = +31 degrees C - Control panel temp. = +31 degrees C - Battery voltage = 35.70 V - Battery current = -24 mA The CW beacon was not heard. 73s Bernhard VA6BMJ @ DO33FL ___ 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] Seeking satellite presentation materials
I'm on the hook for an amateur satellite presentation next week to the Vashon Island Amateur Radio Club (http://www.w7vmi.org/) and am hoping not to reinvent the wheel. Pointers to favorite amateur satellite presentations in .ppt form which can legitimately be re-purposed for this effort would be appreciated. Dave - N7LKL ___ 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: Response to my request of information about EduSat fromGAUSS team in Rome: Re: [CubeSat] Edusat operative or failure
Hi Giulio, AB2VY Edusat is a "Non amateur satellite" ? ..OK ,but it has received an experimental license on 435.750 MHz for communicating at no cost into the "Satellite Amateur Frequencies" without coordination from IARU..OK ? It is very strange that Edusat has received an experimental licence for communications into the Satellite Amateur Band without a frequency coordination from IARU It is also very strange that the GAUSS group do not officially published the operating frequencies of Edusat stating that those frequencies published via internet are wrong frequencies. It seems that there is no coordination between our Communication Autority in Roma and IARU as well between the GAUSS group the IARU and the Radio Amateur community. In conclusion dear Giulio Edusat is a satellite not of our interest and please forget the above box for shoe. 73" de i8CVS Domenico - Original Message - > From: "Gi. (Ab2vy)" > To: "Amsat-bb" > Sent: Tuesday, August 30, 2011 7:18 AM > Subject: [amsat-bb] Response to my request of information about EduSat > fromGAUSS team in Rome: Re: [CubeSat] Edusat operative or failure > > > Hi to all, this is what I have received from GAUSS team in Rome about my > request of Info about Edusat, they talk about of "Non Amateur Radio > satellite"... > > 73 de Giulio AB2VY > > Sent from my BlackBerry® wireless device > > -Original Message- > From: Group of Astrodynamics > Date: Tue, 30 Aug 2011 00:11:38 > To: > Cc: > Subject: Re: [CubeSat] Edusat operative or failure > > Dear all, > > this is the GAUSS group which is in charge of Edusat satellite. > > We want to calm down Giulio: Edusat mission is carrying on flawlessly. We > have communicated with it and he told us that the weather is a bit chilly > but the panorama is great. > > We have seen that many wrong informations are reported on the web. For > example, all the radio frequencies are wrong. Edusat is not a radioamateur > satellite and has an experimental license for communicating. > > We didn't thought our satellite could be so interesting for the space > community. Thank you for giving us so much attention. > > 2011/8/29 Gi. (Ab2vy) > > > Hi to all the members, knowing that Edusat is not pretty a cubesat.., I'm > > looking for some informations or reports about the bird, because , > > monitoring the spectrum of UHF and S-Band from the launch to today , NO > > Signals was received from ground stations in US and EU (same thing for > > Nigeriasat) is there a problem on the mission? > > Thanks for any reports > > 73 de Giulio AB2VY > > > > Sent from my BlackBerry® wireless device > >___ > > CubeSat mailing list > > cube...@cubesat.org > > http://lists.cubesat.org/mailman/listinfo/cubesat > > Gruppo di Astrodinamica Università degli Studi Sapienza > > Via Salaria, 851 > > 00138 Roma > > > > website: www.gaussteam.com > > tel. 0039 06 88346436 > ___ 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] SatPC and TS-2000
Is anyone using SatPC32 with a Kenwood TS-2000? If so, what is your Doppler.SQF entry for the transponder. I can not seem to get it to go into Duplex (Satellite) mode. It goes into Split and, of course, I can not hear the downlink. 73 -- *Carl W8KRF* ___ 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
>ARISS - International Space Station (BBS/APRS on) ISS is transmiting this but not accepting packets nor BBS connections. Probly off just sending the wrong ID. 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
[amsat-bb] Re: Fw: Response to my request of information about EduSat fromGAUSS team in Rome: Re: [CubeSat] Edusat operative or failure
Hi Domenico, The Gauss website at http://www.gaussteam.com/index.php?option=com_content&view=article&id=91:unisat-program&catid=29:unisat&Itemid=195 says regarding frequencies: "The communication system uses frequencies in the 145MHz band to communicate from ground to satellite (uplink) and frequencies in the 435MHz band for communications from the satellite to earth (downlink). It also provides the S-band." As I see it there are two issues. (1) The failure to apply for IARU frequencies. Gauss of course are not alone in this, for example none of the Russian Federation's satellites have gone through IARU coordination. Clearly it is desirable that all Amateur Radio satellite groups go through coordination to minimize interference and enable us to make maximum use of our limited allocations. (2) The use of 145 MHz for command uplink and 435 MHz for downlinks by satellites that are nothing to do with Amateur Radio and are using the Amateur Satellite Service spectrum for their own private use. An earlier posting on this list indicated that the 435.750 MHz downlink (and presumably the 145 MHz uplink ?) would only be used when the satellite was in range of Italy. A subsequent posting indicated that EDUSAT would also be commanded from the United States. I do not have a detailed knowledge of USA Amateur license regulations so I do not know if US Amateurs are permitted to control private non-Amateur spacecraft using Amateur Satellite Service frequencies. 73 Trevor M5AKA --- On Wed, 31/8/11, i8cvs wrote: > Edusat is a "Non amateur satellite" ? ..OK ,but it has > received an > experimental license on 435.750 MHz for communicating at no > cost > into the "Satellite Amateur Frequencies" without > coordination from > IARU..OK ? > > It is very strange that Edusat has received an experimental > licence > for communications into the Satellite Amateur Band without > a > frequency coordination from IARU > > It is also very strange that the GAUSS group do not > officially published > the operating frequencies of Edusat stating that those > frequencies > published via internet are wrong frequencies. > > It seems that there is no coordination between our > Communication > Autority in Roma and IARU as well between the GAUSS group > the > IARU and the Radio Amateur community. > > In conclusion dear Giulio Edusat is a satellite not of our > interest and > please forget the above box for shoe. > > 73" de > > i8CVS Domenico > > - Original Message - > > From: "Gi. (Ab2vy)" > > To: "Amsat-bb" > > Sent: Tuesday, August 30, 2011 7:18 AM > > Subject: [amsat-bb] Response to my request of > information about EduSat > > fromGAUSS team in Rome: Re: [CubeSat] Edusat operative > or failure > > > > > > Hi to all, this is what I have received from GAUSS > team in Rome about my > > request of Info about Edusat, they talk about of "Non > Amateur Radio > > satellite"... > > > > 73 de Giulio AB2VY > > > > Sent from my BlackBerry® wireless device > > > > -Original Message- > > From: Group of Astrodynamics > > Date: Tue, 30 Aug 2011 00:11:38 > > To: > > Cc: > > Subject: Re: [CubeSat] Edusat operative or failure > > > > Dear all, > > > > this is the GAUSS group which is in charge of Edusat > satellite. > > > > We want to calm down Giulio: Edusat mission is > carrying on flawlessly. We > > have communicated with it and he told us that the > weather is a bit chilly > > but the panorama is great. > > > > We have seen that many wrong informations are reported > on the web. For > > example, all the radio frequencies are wrong. Edusat > is not a radioamateur > > satellite and has an experimental license for > communicating. > > > > We didn't thought our satellite could be so > interesting for the space > > community. Thank you for giving us so much attention. > > > > 2011/8/29 Gi. (Ab2vy) > > > > > Hi to all the members, knowing that Edusat is not > pretty a cubesat.., > I'm > > > looking for some informations or reports about > the bird, because , > > > monitoring the spectrum of UHF and S-Band from > the launch to today , NO > > > Signals was received from ground stations > in US and EU (same thing for > > > Nigeriasat) is there a problem on the mission? > > > Thanks for any reports > > > 73 de Giulio AB2VY > > > > > > Sent from my BlackBerry® wireless device > > >___ > > > CubeSat mailing list > > > cube...@cubesat.org > > > http://lists.cubesat.org/mailman/listinfo/cubesat > > > Gruppo di Astrodinamica Università degli Studi > Sapienza > > > Via Salaria, 851 > > > 00138 Roma > > > > > > website: www.gaussteam.com > > > tel. 0039 06 88346436 > > > > ___ > 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: Seeking Sat Presentation
My reply is too long to post here ... But some hints and tips for making an effective satellite presentation are on this page ... http://web.me.com/clintbradford/Work-Sat/Presentations.html I have a couple excellent "How to make an effective slideshow" articles that will be added in the next few days, too ... Clint, K6LCS 909-241-7666 ___ 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] Has the ARISSat-1 CW-2 frequency shifted?
A couple days ago, I noticed that to get a 500 Hz signal for CW-2 (nominally 145.9190 MHz) to decode the BPSK-1000 signal, I had to change the unDoppler-shifted frequency on my USB receiver from 145.918500 MHz to 145.918280 MHz, a change of 220 Hz. This new value have been consistent over a couple days of careful watching. I don’t believe it to be an error in the keps or clock as it has been true both at the beginning and end of the pass. My receiver has been on for over a month, so unless a component changed value suddenly, Has ARISSat-1 changed, has my radio changed, or does only my hairdresser know for sure? 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
[amsat-bb] Re: Has the ARISSat-1 CW-2 frequency shifted?
Ron, I have been catching a couple of passes a day for TLM since deployment. After the initial tweaks, is has been consistently within +/ 20 Hz of the predicted value. I haven't seen a large jump, though I did tweak it down 20 Hz yesterday to refine my initial values. 73s, Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Ronald G. Parsons Sent: Wednesday, August 31, 2011 4:15 PM To: AMSAT-BB Subject: [amsat-bb] Has the ARISSat-1 CW-2 frequency shifted? A couple days ago, I noticed that to get a 500 Hz signal for CW-2 (nominally 145.9190 MHz) to decode the BPSK-1000 signal, I had to change the unDoppler-shifted frequency on my USB receiver from 145.918500 MHz to 145.918280 MHz, a change of 220 Hz. This new value have been consistent over a couple days of careful watching. I don't believe it to be an error in the keps or clock as it has been true both at the beginning and end of the pass. My receiver has been on for over a month, so unless a component changed value suddenly, Has ARISSat-1 changed, has my radio changed, or does only my hairdresser know for sure? 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] IARU-R1 - Disconnect D-Star Repeaters Violating Bandplan
Edition 58 of the IARU Region 1 VHF-UHF-UW Newsletter publishes the notes from the key C5 committee meeting at the IARU-R1 Sun City conference. There are a number of Italian repeaters operating in the Amateur Satellite Service segment from 145.8-146.0 MHz causing interference to the uplinks and downlinks of Amateur Radio satellites. Among them are: D-STAR: IR0MA 145.99375MHz -1.975 Roma, Lazio IR7AZ 145.97500MHz -1.250 San Giovanni Rotondo , Puglia Also these Italian repeaters using other modes: FM: IR0CK 145.8500MHz -0.600 Roma (Internet Linked) Echolink: IQ0FP 145.8875MHz Node 522 131 Packet: IK4MTK-6 145.975MHz Parma, North Italy The IARU-R1 Sun City conference C5 committee meeting notes say: SC11_C5_16 – D-Star in Italy using SAT-Band IARU R1 stresses the importance of satellite service and band plans also in case of the introduction of new modes. It is recommended to disconnect repeaters/nodes from international D-Star network if these are operated in contradiction to IARU-R1 band plans. Action points: 1. Write the repeater operator to remove out of satellite segment. 2. Inform the trust server operator of the IARU bandplan breach made by the use of the repeater. 3. Inform the government about the repeater and request them to remove the repeater. Action for the chairman OE1MCU Voted in favour: All unanimous in favour 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
[amsat-bb] Re: ARISSAT-1 TLM Problem
All, ARISSatTLM only uses the 48 kHz sampling rate on soundcards, so that's the only rate your card needs to be able to run at for ARISSatTLM. Douglas KA2UPW/5 James McBride wrote: Randy, Make sure you have any audio or DSP filters switched off, IF shift to centre etc. I found the 'tone' control on the FT736 affects the decode (eventually, by accident).. Also I found that I had a dirty contact on the soundcard input to my PC's motherboard! After I fixed some of these things, the decode was okay, mind you I suspect shielded cable would also be better - I'm using twin speaker lead.. :( . Put the CW at the marker (as close as possible and adjust for doppler) in USB mode and you should get some good frames eventually. I've found usually the high elevation passes are reliable, the low ones at 3-5 degrees just don't give me enough of a chance to get telemetry sometimes. The soundcard is usually part of the issue also. My old P-4 shuttle mainboard AC97 codec style soundcard I think only samples at 48KHz or something and uses software drivers to pretend the sampling is at other rates - a proper PCI soundblaster style card or high quality SDR style soundcard would probably work better. At some stage I might try a better PC but for now it works some of the time straight from the headphone socket to line-in on the soundcard. 73 James VK6FJA ___ 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] 5 in EM55
Congrats to Mike K5TRI for award # 027 5 in EM55 WA4HFN Damon 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
[amsat-bb] Re: Has the ARISSat-1 CW-2 frequency shifted?
Alan, For the last week or so we have been observing it come out of eclipse. I have noted at worst, a very slow 40Hz shift as ARISSAT1 warms up. I update the TLE's every day for ARISSAT1 (possibly an overkill) but it is always within +/-20 Hz at AOS that you quoted. 73 Colin VK5HI. -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Alan P. Biddle Sent: Thursday, 1 September 2011 07:01 To: 'Ronald G. Parsons'; 'AMSAT-BB' Subject: [amsat-bb] Re: Has the ARISSat-1 CW-2 frequency shifted? Ron, I have been catching a couple of passes a day for TLM since deployment. After the initial tweaks, is has been consistently within +/ 20 Hz of the predicted value. I haven't seen a large jump, though I did tweak it down 20 Hz yesterday to refine my initial values. 73s, Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Ronald G. Parsons Sent: Wednesday, August 31, 2011 4:15 PM To: AMSAT-BB Subject: [amsat-bb] Has the ARISSat-1 CW-2 frequency shifted? A couple days ago, I noticed that to get a 500 Hz signal for CW-2 (nominally 145.9190 MHz) to decode the BPSK-1000 signal, I had to change the unDoppler-shifted frequency on my USB receiver from 145.918500 MHz to 145.918280 MHz, a change of 220 Hz. This new value have been consistent over a couple days of careful watching. I don't believe it to be an error in the keps or clock as it has been true both at the beginning and end of the pass. My receiver has been on for over a month, so unless a component changed value suddenly, Has ARISSat-1 changed, has my radio changed, or does only my hairdresser know for sure? 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 ___ 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: SatPC and TS-2000
Hi Carl, Maybe this will work for you---seems fine to me. ARISSat-1,145930.0,435750.0,USB,LSB,REV,0,0,XPDR 73, Mark N8MH At 04:19 PM 8/31/2011 -0400, Carl Rimmer W8KRF wrote: >Is anyone using SatPC32 with a Kenwood TS-2000? If so, what is your >Doppler.SQF entry for the transponder. I can not seem to get it to go into >Duplex (Satellite) mode. It goes into Split and, of course, I can not hear >the downlink. > >73 > >-- >*Carl W8KRF* >___ >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] ISS Back on
Looks like people are getting back on. Get your Digi contacts now before they abandon the ISS! 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
[amsat-bb] QRV EM47, Sep. 3 & 5 - For 2 Passes ONLY!
All, I will be traveling through EM47 on Sep 3rd and again on the 5th. I will stop briefly on both days to provide an opportunity for as many as possible to put this rare grid in their logbook. I will only be able to be active on one pass per day. Planned operations will be via SO-50: 3/Sep/2011 14:49 - 15:02 UTC and 5/Sep/2011 14:06 - 14:20 UTC No QSL/SASE is necessary, just send me an email request and I'll be glad to QSL our contact. 73, Doug KD8CAO Ps. For those that need EM59, drop me an email. I may have the opportunity on Friday night to operate from this grid via SO-50 @ 2/Sep/2011 00:35 - 00:49UTC. If I get some requests, I'll try to fit it into my schedule. ___ 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] This place needs people!!
http://ncpa.ampr.org/phpbbThe Amateur Radio Digital Discussion Board 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
[amsat-bb] Re: This place needs people!!
There's way more traffic on the DigitalRadio list and I don't have to go to it to see the messages - they come to me. That's the biggest problem with online forums - you have to go to the forum to read the messages. I'm a member of at least a half dozen forums - I haven't been to ANY of them in at least 6 months. The 20 + lists I subscribe to OTOH, I get traffic from every day. Done deal! Jeff Moore -- KE7ACY CN94 - Original Message - From: "Kevin Deane" To: Sent: Wednesday, August 31, 2011 7:59 PM Subject: [amsat-bb] This place needs people!! http://ncpa.ampr.org/phpbbThe Amateur Radio Digital Discussion Board 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
[amsat-bb] Re: SatPC and TS-2000
This also works fine for the Yaesu FT 847. --- On Wed, 31/8/11, Mark L. Hammond wrote: From: Mark L. Hammond Subject: [amsat-bb] Re: SatPC and TS-2000 To: "Carl Rimmer W8KRF" , amsat-bb@amsat.org Received: Wednesday, 31 August, 2011, 12:56 PM Hi Carl, Maybe this will work for you---seems fine to me. ARISSat-1,145930.0,435750.0,USB,LSB,REV,0,0,XPDR 73, Mark N8MH At 04:19 PM 8/31/2011 -0400, Carl Rimmer W8KRF wrote: >Is anyone using SatPC32 with a Kenwood TS-2000? If so, what is your >Doppler.SQF entry for the transponder. I can not seem to get it to go into >Duplex (Satellite) mode. It goes into Split and, of course, I can not hear >the downlink. > >73 > >-- >*Carl W8KRF* >___ >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: Fw: Response to my request of information aboutEduSat fromGAUSS team in Rome: Re: [CubeSat] Edusat operativeor failure
Hi Trevor, M5AKA Thank you for the information.I believe that without the contribution of the Amateur Radio Community all around the word in receiving and collecting TLM as well commanding the satellite the success of Edusat will be a operativeor failure. Best 73" de i8CVS Domenico - Original Message - From: "Trevor ." To: "Amsat - BBs" Sent: Wednesday, August 31, 2011 10:38 PM Subject: [amsat-bb] Re: Fw: Response to my request of information aboutEduSat fromGAUSS team in Rome: Re: [CubeSat] Edusat operativeor failure Hi Domenico, The Gauss website at http://www.gaussteam.com/index.php?option=com_content&view=article&id=91:uni sat-program&catid=29:unisat&Itemid=195 says regarding frequencies: "The communication system uses frequencies in the 145MHz band to communicate from ground to satellite (uplink) and frequencies in the 435MHz band for communications from the satellite to earth (downlink). It also provides the S-band." As I see it there are two issues. (1) The failure to apply for IARU frequencies. Gauss of course are not alone in this, for example none of the Russian Federation's satellites have gone through IARU coordination. Clearly it is desirable that all Amateur Radio satellite groups go through coordination to minimize interference and enable us to make maximum use of our limited allocations. (2) The use of 145 MHz for command uplink and 435 MHz for downlinks by satellites that are nothing to do with Amateur Radio and are using the Amateur Satellite Service spectrum for their own private use. An earlier posting on this list indicated that the 435.750 MHz downlink (and presumably the 145 MHz uplink ?) would only be used when the satellite was in range of Italy. A subsequent posting indicated that EDUSAT would also be commanded from the United States. I do not have a detailed knowledge of USA Amateur license regulations so I do not know if US Amateurs are permitted to control private non-Amateur spacecraft using Amateur Satellite Service frequencies. 73 Trevor M5AKA --- On Wed, 31/8/11, i8cvs wrote: > Edusat is a "Non amateur satellite" ? ..OK ,but it has > received an > experimental license on 435.750 MHz for communicating at no > cost > into the "Satellite Amateur Frequencies" without > coordination from > IARU..OK ? > > It is very strange that Edusat has received an experimental > licence > for communications into the Satellite Amateur Band without > a > frequency coordination from IARU > > It is also very strange that the GAUSS group do not > officially published > the operating frequencies of Edusat stating that those > frequencies > published via internet are wrong frequencies. > > It seems that there is no coordination between our > Communication > Autority in Roma and IARU as well between the GAUSS group > the > IARU and the Radio Amateur community. > > In conclusion dear Giulio Edusat is a satellite not of our > interest and > please forget the above box for shoe. > > 73" de > > i8CVS Domenico > > - Original Message - > > From: "Gi. (Ab2vy)" > > To: "Amsat-bb" > > Sent: Tuesday, August 30, 2011 7:18 AM > > Subject: [amsat-bb] Response to my request of > information about EduSat > > fromGAUSS team in Rome: Re: [CubeSat] Edusat operative > or failure > > > > > > Hi to all, this is what I have received from GAUSS > team in Rome about my > > request of Info about Edusat, they talk about of "Non > Amateur Radio > > satellite"... > > > > 73 de Giulio AB2VY > > > > Sent from my BlackBerry® wireless device > > > > -Original Message- > > From: Group of Astrodynamics > > Date: Tue, 30 Aug 2011 00:11:38 > > To: > > Cc: > > Subject: Re: [CubeSat] Edusat operative or failure > > > > Dear all, > > > > this is the GAUSS group which is in charge of Edusat > satellite. > > > > We want to calm down Giulio: Edusat mission is > carrying on flawlessly. We > > have communicated with it and he told us that the > weather is a bit chilly > > but the panorama is great. > > > > We have seen that many wrong informations are reported > on the web. For > > example, all the radio frequencies are wrong. Edusat > is not a radioamateur > > satellite and has an experimental license for > communicating. > > > > We didn't thought our satellite could be so > interesting for the space > > community. Thank you for giving us so much attention. > > > > 2011/8/29 Gi. (Ab2vy) > > > > > Hi to all the members, knowing that Edusat is not > pretty a cubesat.., > I'm > > > looking for some informations or reports about > the bird, because , > > > monitoring the spectrum of UHF and S-Band from > the launch to today , NO > > > Signals was received from ground stations > in US and EU (same thing for > > > Nigeriasat) is there a problem on the mission? > > > Thanks for any reports > > > 73 de Giulio AB2VY > > > > > > Sent from my BlackBerry® wireless device > > >___ > > > CubeSat mailing list > > > cube...@cubesat.org > > > http://lists.cubesat.
[amsat-bb] Re: IARU-R1 - Disconnect D-Star Repeaters Violating Bandplan
Hi Trevor, M5AKA The problem here in Italy is that our Communication Autority do not recognize IARU and the IARU band.plan ! In Italy only ARI is the IARU Amateur Society representing ARI members but here in Italy there are almost 10 different Amateur societies that are not representing IARU and do not recognize the IARU regulations but they have the same voice of ARI during meeting with the italian Communications Autority. No way to solve the problem ! 73" de i8CVS Domenico - Original Message - From: "Trevor ." To: Sent: Thursday, September 01, 2011 12:32 AM Subject: [amsat-bb] IARU-R1 - Disconnect D-Star Repeaters Violating Bandplan > Edition 58 of the IARU Region 1 VHF-UHF-UW Newsletter publishes the > notes from the key C5 committee meeting at the IARU-R1 Sun City > conference. > > There are a number of Italian repeaters operating in the Amateur > Satellite Service segment from 145.8-146.0 MHz causing interference to > the uplinks and downlinks of Amateur Radio satellites. Among them are: > > D-STAR: > IR0MA 145.99375MHz -1.975 Roma, Lazio > IR7AZ 145.97500MHz -1.250 San Giovanni Rotondo , Puglia > > Also these Italian repeaters using other modes: > FM: IR0CK 145.8500MHz -0.600 Roma (Internet Linked) > Echolink: IQ0FP 145.8875MHz Node 522 131 > Packet: IK4MTK-6 145.975MHz Parma, North Italy > > The IARU-R1 Sun City conference C5 committee meeting notes say: > > SC11_C5_16 – D-Star in Italy using SAT-Band > > IARU R1 stresses the importance of satellite service and band plans > also in case of the introduction of new modes. It is recommended to > disconnect repeaters/nodes from international D-Star network if these are operated in contradiction to IARU-R1 band plans. > > Action points: > 1. Write the repeater operator to remove out of satellite segment. > 2. Inform the trust server operator of the IARU bandplan breach made > by the use of the repeater. > 3. Inform the government about the repeater and request them to remove > the repeater. > > Action for the chairman OE1MCU > > Voted in favour: All unanimous in favour > > > 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
[amsat-bb] Re: Fw: Response to my request of information about EduSat fromGAUSS team in Rome: Re: [CubeSat] Edusat operative or failure
Hi Trevor, And thanks to Domenico, Sil, and the others who were concerned enough to post about"Edusat". A little background: I hardly ever "use" the amateur sats nowadays, time is short and work is long! However whenever a new sat goes up I at least try to get the telemetry from it, usually with some sort of semi automated system, or by real tune and capture when I'm in the shack. OK, its probably not what most on the list would call "operation", but it keeps the grey cells ticking over. Any way, the list came up with "edusat" being launched, in orbit, and transmitting. Great I thought, something new to track and decode. Well as you would do, I tried to find the Keps. Ok got them, bit difficult but found them. Looked for the downlink freq's...yeah right! Looked for the data format yeah right! Looked for the website...still looking! posted to this forum, got a couple of replies from the "owner" that lead me to the FCC website where I discovered that "edusat" is in actuality a commercial enterprise that has some how got both 2 metre and 70 cm freq's allocated by someonewho and how? It is not an "amateur satellite service" satellite in the generally accepted sense, neither does it comply with the IARU definition of an amateur satellite service sat. So WHY is it being snake oiled as an "Amsat", using (in particular) 2 metre freqs ? I fully understand the need to protect a command system uplink freq, which is usually done with encryption of the commands rather than obfuscation of the freq used.at least that's the standard technique for our terrestrial systems. I could go on and on, but my head is already bloodied by beating against a brick wall, Maybe, just maybe someone on the list could set something rolling to to stop this sort of rort of amateur freqs happening again. Up to the list,Its our valuable spectrum "they" are carefully and cunningly hijacking. That was the reason for my original post, to try and point out the erosion of our freq's by folk who are far from friendly to ham radio. Don, ZL1THO ___ 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
