December 2009 - AMSAT-BB - mailman.amsat.org

XW-1 Over North America 15Dec09 1517Z
by John Papay 15 Dec '09

15 Dec '09

The XW-1 CW Beacon was heard over North America this morning with an excellent signal and tone quality. It sends a long string which changes a bit on every transmission. The keps are a bit off since the bird went over the horizon prior to the prediction. I lost it when it was still at 2.7 degrees according to SatPC32. The doppler correction is off as well indicating changing keps. Hopefully we will get some better keps soon. The bird is apparently ahead of the predicted position. A recording of XW-1 is on my webserver: http://www.papays.com/XW-1_15Dec2009_1517z.mp3 At one point the antenna had to turn around. I had some copy on this bird while the antennas came around 180 degrees indicating a strong signal. I noted that there were polarity shifts between right and left hand circular. At one point I tuned to the packet frequency to see if there was any activity. I heard none but only listened for a short time before returning to the beacon frequency. Congratulations to the Chinese Team that designed, built and launched this satellite. It is off to an excellent start. We look forward to having it operational soon and for many years to come. 73, John K8YSE EN91dh

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XW-1 was launched successfully
by Alan Kung 15 Dec '09

15 Dec '09

XW-1 was launched at UTC 02:31 and has successfully gotten into the orbit at UTC 02:53. BA7JA, BA7NQ and BA7IA, members of XW-1 launching monitoring team reported they received XW-1 beacon in Sanya city Hainan province after the satellite deployed. XW-1 Keplerian data 1 99999U 09349.11987269 .00000000 00000-0 00000-0 0 00006 2 99999 100.4859 046.2958 0001760 147.4703 038.6343 13.15267150000017 For the satellite test, XW-1 will work on FM and Store-forwared transponder mode between UTC 12:52:34 and 13:14:32 today, and will work on linear transponder mode between UTC 12:36:31 and 12:58:32 tomorrow. after that we will upload new flight program to setup payload schedule. XW-1 telemetry beacon will keep continue to transmitte. 73 Alan Kung,BA1DU XW-1 project manger www.camsat.cn

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Re: [VUHams] Indian Institute of Technology Bombay Student Satellite, Pratham
by Gopal Madhavan 15 Dec '09

15 Dec '09

Hello Johny While it is appreciated that you students are planning to make a satellite, I would just like to remind you that using amateur radio frequencies by non licensed amateurs is just not permitted and WPC will not allocate such frequencies unless the users have valid licenses. I am sure that you are already aware of this. For your information another university is also planning such a project and there faculty and students are busy studying to get their licenses before the satellite is built. I would suggest that you also do likewise or request WPC to allocate frequencies that are outside the amateur bands, so that licensed amateurs can also use their setup to monitor and assist you. This is not to discourage the project but only to caution you on the use of allowed frequencies. Best regards Gopal VU2GMN President Amateur Radio society of India From: vuhams(a)yahoogroups.com [mailto:vuhams@yahoogroups.com] On Behalf Of Mani VU2WMY Sent: Friday, December 11, 2009 12:32 To: vuhams(a)yahoogroups.com; Mr Kalyana Sundaram R. Subject: Re: [VUHams] Indian Institute of Technology Bombay Student Satellite, Pratham Thank you Kalyan for your kind offer. We'll keep you posted once every thing is in place. 73 de Mani VU2WMY Quoting "Mr Kalyana Sundaram R." <vu2kls(a)yahoo.com>: Dear Mani and Johny If any help needed from Chennai Kindly let us KNOW.We are with you. R.Kalyanasundaram (vu2kls(a)yahoo.com) Jt.Secratary. Madras Amatuer Radio Society. --- On Thu, 10/12/09, Mani VU2WMY <wmy(a)isac.gov.in> wrote: From: Mani VU2WMY <wmy(a)isac.gov.in> Subject: Re: [VUHams] Indian Institute of Technology Bombay Student Satellite, Pratham To: vuhams(a)yahoogroups.com, "jhonny jha" <jhajhonny(a)gmail.com> Cc: vuhams(a)yahoogroups.com, amsatindia(a)yahoogroups.com Date: Thursday, 10 December, 2009, 9:45 PM Hi Jhonny, It is nice to see your mail just after the review we had in ISRO Satellite Centre. I am sure that more amateur stations from India would participate and be useful to augment your mission goals. Looking forward to meet you and your entire team during the PDR meet at ISRO. Good luck and wishes. with regards Mani, VU2WMY Secretary & Station-In-Charge Upagrah Amateur Radio Club VU2URC ISRO Satellite Centre Airport Road, Bangalore-560 017. Phone:(O)91- 80-2508 2054/2192/2537 Mobile: 91-80-98803 41456 E-mail ID: wmy(a)isac.gov. in vu2wmy_mani@ yahoo.com isrohams@yahoo. com Quoting jhonny jha <jhajhonny@gmail. com>: Hello everyone, I am Jhonny Jha, student of IIT Bombay, and the project manager of a student satellite initiative of the institute. We started the project a year back and we are currently entering the detailed designed phase of our satellite. The project is an initiative undertaken jointly by the institute and ISRO. Payload of this mission is to measure the total electron count of the atmosphere using the technique of faraday rotation. In order to implement this, we have two monopoles onboard working in VHF and UHF amateur bands and a Groundstation at IITB to receive the signals.The total electron cont can be estimated by using a simple circuitry after your receiving antennae which gives the polarization of the incoming signal. In order to make the mission successful, we have also included a social goal in our mission statement, wherein we aim at teaching students from across the country the intricacies of antennae designing and fabrication. We have already c onducted 2 national workshops for the same. We want the amateur radio community to help us in our mission by setting up mini groundstations all over the country and measure the polarization of the incoming signal. Incase, we have a large number of stations spread across India, we would have more datapoints and can even perform ionospheric tomography with the data. This would help create a 3D map of electron count over India, which we currently do not have. This data can be used in the field of GPS correction, incase the country aims for its own GPS system in a few years. I request wholehearted support from the amsat and Ham community in this project of ours. Regards, Jhonny Jha, Project Manager, Pratham, IITB Student Satellite, IIT Bombay. www.aero.iitb. <http://www.aero.iitb.ac.in/pratham> ac.in/pratham _____ The INTERNET now has a personality. YOURS! See <http://in.rd.yahoo.com/tagline_yyi_1/*http:/in.yahoo.com/> your Yahoo! 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identification for XW-1
by Louis House 15 Dec '09

15 Dec '09

I am updating my SatPC32 files to include the new XW-1 Bird. Can someone help me with the 5-digit "Identification Number" and the satellite's 8-digit "International ; Designator" for the XW-1 SAT. I can't seem to find these in the recently published information. TNX Louis, KD5GM

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Celestial Keps for SatPC32
by Joel I. Kandel 15 Dec '09

15 Dec '09

Has anyone added the Keplerian elements to SatPC32 for the sun and planets? Would like to use the tracking software for radio astronomy. Looking for a source for the elements and any tipe on adding them. Thanks, Joel, KI4T

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Software to run a ts-200 and LVB
by racer5039 15 Dec '09

15 Dec '09

I am having a really hard time getting HRD to run with Windows 7 or Vista. Is there something else out there that will run the 200 and the LVB tracker? HRD was working real well til the last couple of updated but I'm ready to try something else. Thanks Marv. N0FJP

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XW-1 13:20Z pass audible
by Bruce Robertson 15 Dec '09

15 Dec '09

Listening to this pass right now, using Mineo's keps. Quite audible with very few fades from 5 deg. with a 1/4 wave vertical and a mast-mounted preamp. Telemetry does have a 5 second period about every minute or so when it goes off. The keps are not yet suitable for doppler tuning: I'm tuning up by 2kHz right now. Hooray for the Chinese amateur community and for those who allowed the launching hardware to be used for our benefit! 73, Bruce -- http://ve9qrp.blogspot.com

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Parabola Calculator
by Bruce 15 Dec '09

15 Dec '09

need to calculate the parabola of a dish and where the focal point is? one of those that helped on this program was my friend, edisher, 4l4fn. http://mscir.tripod.com/parabola/ 73...bruce -- Bruce Paige, KK5DO AMSAT Director Contests and Awards ARRL Awards Manager (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0100z 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

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XW-1 heard over Europe again
by OZ1MY 15 Dec '09

15 Dec '09

Hi all, Can confirm Christians report. CW beacon on. Had to go down on the downlink frequency. To start with - 600 Hz when using USB. Had to follow down during the pass until TCA, then up again. Used an additional - 2.1 kHz at TCA. Keps may be a little off. Nominel published frequency 435.790 MHz. Congratulation to AMSAT-China 73 OZ1MY Ib

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XW-1 CW beacon
by Mineo Wakita 15 Dec '09

15 Dec '09

OBJECT A 1 36121U 09072A 09349.15640464 -.00000045 00000-0 00000+0 0 19 2 36121 100.5046 046.2483 0006436 232.0630 127.9902 13.18995687 00 Beacon is active tonight over Japan, 11:04 UTC, 15 Dec 2009 http://www.ne.jp/asahi/hamradio/je9pel/91215xw1.mp3 Recorded by JE9PEL, 435.790MHz http://www.ne.jp/asahi/hamradio/je9pel/xw1_yubi.htm

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