AMSAT-NA AMSAT News Service

January 19, 2003

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AO-27 Operation

Several stations have recently reported hearing AO-27's transponder operating during unexpected periods of the orbit.

Mike, N1JEZ, provided the following explanation, "AO-27's orbit has moved the satellite into a period of full orbit solar illumination. Due to this, the Timed Eclipse Power Regulator or 'TEPR' method of timing the transmitter does not work. Therefore AO-27 cannot turn its transmitter on by itself and can only be turned on by ground station command." Mike continued, "We will try to turn it on for analogue work on the weekends when we are not downloading telemetry. We are working on new flight software that will let us upload a schedule for the transmitter. This will take us sometime to write, debug, and upload to AO-27."

Mike requests that operators can best help by being patient during this process. E-mails to the AO-27 command stations asking about when the satellite will be on take time away from the software development. The command team members are working quickly but carefully to get AO-27 back in analogue mode.

In conclusion Mike noted that, "As a bonus to this orbit, during the seasons of full orbit solar illumination, we will be able to have the transmitter on at night and for different parts of the world."

[ANS thanks Mike, N1JEZ, for the above information]

AO-40 QSO Party Extended to 4 Days

The operating period for the first AO-40 QSO Party has been extended to 4 days in order to give more operating windows to amateur stations world wide. The QSO Party will begin at 0000 UTC on 24 Jan 2003 and conclude at 2400z on 27 Jan 2003. Currently stations from over 30 countries have indicated their intention to participate in the AO-40 QSO Party.

1. Objective

To encourage more and more amateur radio stations to have two way communication via AO-40, especially during the good condition of the satellite.

2. Rule Of Operation

3. Suggested Frequency

Downlink: S-band, USB
Uplink: U-band LSB OR L-band LSB (only one band per station is allowed during the event)
Mode: SSB Only

Keep +/- 10 kHz from MB always clear.

4. Venue

Event will be commenced in January 24, 25, 26 and 27 2003 UTC. Starting and ending MA is in accordance with the availability of pass-band.

5. Award

6. Email Address

For receiving the above mentioned award, electronic worksheet in the following format: ASCII text, ADIF, Microsoft Excel, should be sent to ReinhardSual@TheTempoGroup.Net

The closing date for electronic log-sheet submission is 31 January 2003.

7. Post Office Address

To get Special Certificate as per point 5 above, SASE and US$ 5 should be sent to:

Reinhard Sual - YB0KTQ
Pulo Gebang Permai G1/9
Jakarta Timur 13950
Indonesia

8. Website

All information on this AO-40 QSO Party is available on Internet at http://202.158.39.236/AO40QSOParty2003.asp

9. Acknowledgement

This event is coordinated by YB0KTQ, and by no means related to any organization, locally or internationally. However, I have discussed most of this matter with friends especially with AO-40 enthusiast from more than 15 countries, which support this event to happen.

[ANS thanks Reinhard, YB0KTQ, for the above information]

AO-49 Uplink Test

The team of SAFIR-M (AATiS OSCAR-49) invites you to participate in a test of the uplink conditions for AO-49 SAFIR-M.

To get more information about the behavior of AO-49 SAFIR-M stations are requested to attempt uplinking at various power levels. Uplink results can be viewed by monitoring the onboard implemented MH0 and MH1 reports of the SAFIR-M.

At the moment, there is still one known problem in the downlinked data of the messages (bit0 is fixed to "0"). A SW upload for correction is planned but will still need some time of preparation.

The SAFIR-M digipeating functionality is not affected by this fault and can be monitored with every 2m 9k6 equipment!

Details about possibilities to receive and even decode the data are described at the following links:

http://hft.fh-pforzheim.de/ao49/
http://www.ne.jp/asahi/hamradio/je9pel/safir-m2.htm

The onboard implemented MH0 and MH1 list (normally) looks as follows:

[001: DP0AIS > MH0 UI^]
   MH/RSSI    min  max  sec
   DG6BCE-00 -070 -070 0006
   DG6BCE-04 -070 -070 0023
   DG6BCE-03 -070 -070 0052
   DG6BCE-03 -070 -070 0076
   DG6BCE-02 -120 -117 0109
   DG6BCE-01 -120 -117 0133
   DG6BCE-01 -120 -117 0155
   xxxxxx-00 -120 -120 1121

   [001: DP0AIS > MH1 UI^]
   MH/RSSI    min  max  sec
   xxxxxx-00 -120 -120 1121
   xxxxxx-00 -120 -120 1121
   xxxxxx-00 -120 -120 1121
   xxxxxx-00 -120 -120 1121
   xxxxxx-00 -120 -120 1121
   xxxxxx-00 -120 -120 1121
   xxxxxx-00 -120 -120 1121
   xxxxxx-00 -120 -120 1121

Description:

The used call and SSID of the last 2 x 8 received messages are displayed with the related min and max RX power within this message in dBm and the elapsed time in seconds. Note: Only messages with destination "DP0AIS" will be listed here.

This feature was implemented to allow a simple check of the used ground station equipment and shall allow a couple of more experiments.

The uplink equipment could be quite simple: even a transmitter for 435,275 MHz, up to 30 W of TX-power, antenna, 1k2 AFSK modem/TNC.

To verify this functionality, we request the usage of SAFIR-M digipeating function

And reports, containing

It is helpful to include some of this information in the transmitted data packet as shown in the following example:

  DK2SM>DP0AIS: JO42rl 80W  430269 kHz
  DK2SM>DP0AIS: JO42rl 25W  430279 kHz

The actual TLEs are available on the CELESTRAK database under TLE-NEW and "RUBIN 2" with the NORAD #27605.

We kindly request to provide us with monitored SAFIR-M beacon messages and reports of uplink experiments so that we can analyze this feature.

For any questions please do not hesitate to contact us.

Please address any reports to DG6BCE@aatis.de

[ANS thanks Oliver, DG6BCE, for the above information]

Weekly Operating Update

ANS welcomes the opportunity to publish your good news of success in working a new satellite, new DX, new mode, etc. We also print reports about what space related activities your local satellite groups and ham clubs are doing. Send your operating reports to JoAnne (wb9jej@amsat.org) and they will be printed here.

[ANS thanks KK5DO and congratulates WC9C and KC7USS for this week's operating update.]

ARISS Contact Schedule

Upcoming ARISS Contact Schedule as of 2003-01-16 02:00 UTC

The ARISS (a joint effort of AMSAT, the ARRL, NASA, the ARISS international partners including Canada, Russia, the European Partners, and Japan) operations team wishes to announce the following very tentative schedule for ARISS school contacts. This schedule is very fluid and may change at the last minute. Remember that amateur radio use on the ISS is considered secondary. Please check the various AMSAT and ARISS webpages for the latest announcements. Changes from the last announcement are noted with (***). Also, please check MSNBC.com for possible live retransmissions (http://www.msnbc.com/m/lv/default.asp). Listen for the ISS on the downlink of 145.80 MHz.

For information about educational materials available from ISS partner space agencies, please refer to links on the ARISS Frequently Asked Questions page.

If you are interested in supporting an ARISS contact, then you must fill in an application. The ARISS operations mentor team will not accept a direct request to support an ARISS contact.

You should also note that many schools think that they can request a specific date and time. It does not work that way. Once an application has been accepted, the ARISS mentors will work with the school to determine a mutually agreeable date.

Websites that may be of interest include:

http://www.arrl.org/sarex
http://www.arrl.org/ariss
http://www.amsat.org
http://ariss.gsfc.nasa.gov
http://spacelink.nasa.gov/index.html
http://ehb2.gsfc.nasa.gov/edcats/educator_guide/

Your completely filled out application should be returned to the nearest coordinating ARISS region if your specific region is not listed. E-mail is the preferred method of submitting an application.

Here are the email addresses:

ARISS-Canada and all other countries not covered: ve2ka@rac.ca (Daniel Lamoureux VE2KA)
ARISS-Europe: jh.hahn@gmx.net (J. Hahn, DL3LUM / PA1MUC)
ARISS-Japan and all Region 3 countries: iaru-r3@jarl.or.jp (Keigo Komuro JA1KAB)
ARISS-Russia: n2ww@attbi.com (Valerie Agabekov N2WW/UA6HZ)
ARISS-USA: ARISS@arrl.org (The American Radio Relay League)

ISS Expedition 6 crew:
Kenneth Bowersox KD5JBP
Nikolai Budarin RV3FB
Donald Pettit KD5MDT

Field School Park Ridge, Illinois
Contact is 2003-01-23 14:37 UTC, telebridge via ZS6BTD

The latest ARISS announcement and successful school list in now available on the ARISS web site. There are several ways to get there:

http://ariss.gsfc.nasa.gov
click on "English", you are now at http://www.rac.ca/ariss/
click on "School contact information"
click on "ARISS school contact schedule"

or go to

http://www.amsat.org/amsat/ariss/news/arissnews.txt

Currently the ARISS operations team has a list of over 60 schools that we hope will be able to have a contact during 2002-2003. As the schedule becomes more solidified, we will be letting everyone know. Current plans call for an average of one scheduled school contact per week.

[ANS thanks Charlie Sufana AJ9N for the above information]

News in Brief

Weekly Satellite Report

Link to the weekly report on satellite ...

All Satellites
ISS. RS-12. RS-13. RS-15. RS-20. AO-7. AO-10. UO-11. UO-14. AO-16. LO-19. FO-20. UO-22. KO-23. KO-25. IO-26. AO-27. FO-29. GO-32. SO-33. PO-34. UO-36. AO-40. SO-41. SO-42. NO-44. NO-45. MO-46. AO-49. SO-50


Please send any amateur satellite news or reports to the ANS Editors at ans-editor@amsat.org

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This week's AMSAT News Service bulletins were edited by AMSAT News Service Editor Lee McLamb, KU4OS, ku4os@amsat.org.

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