AMSAT-NAAMSAT News Service

October 12, 2001

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AO-40 Update

AO-40 may help change the way we travel to and from space, following initial testing of the GPS receivers onboard the satellite.

NASA provided two GPS receivers for AO-40, wanting to know if GPS signals from outside NASA's own ring of satellites could be useful. They turned to AMSAT to find out.

The two AO-40 GPS receivers, receiver A (used at apogee) and receiver B (for perigee), would help provide the information. AMSAT-NA's Jim White, WD0E, recently reported good received signals, even out to 52,000 kilometers. Data from the GPS receivers was downlinked via AO-40's S-band transmitter and the RUDAK system.

Currently, the received data is being analyzed.

If the data provides useful information, future high orbit satellites will be able to take advantage of GPS data for autonomous navigation and stationkeeping.

AO-40 activity continues.

RUDAK was turned on again during orbit 433 to allow control stations to downlink additional GPS data.

Mike, KD9KC, reports his first contacts via AO-40, using mode U/S. Mike tells ANS of contacts with VE7FM, W8GSM, N4WYK, N9MUH, K5OE and PY0DGV. "Thanks again to all the people who helped me with both effort and knowledge, allowing me to make the transition to AO-40," said KD9KC.

Masa, JA1ATI, reports success with AO-40 K-band reception. His received signals were S-1 to S-2 with heavy QSB. His system includes a dish with a dual mode horn and preamp.

AO-40 is currently in a long period during which the Earth eclipses the Sun near perigee. These actually began about August 28th, and will rapidly increase in length. The will continue well into June 2002.

For the current transponder operating schedule visit http://www.amsat-dl.org/journal/adlj-p3d.htm

Stay tuned to ANS, the official source of AO-40 information.

[ANS thanks AMSAT-NA and AR Newsline for this information]

AMSAT-NA Symposium Concludes

Over 150 satellite enthusiasts recently traveled to Atlanta for the 19th AMSAT-NA Symposium and Annual Meeting. Attendees heard presentations on a wide range of amateur satellite-related topics. Symposium attendees also packed presentations on the progress of AO-40, Project JJ, Amateur Radio on the International Space Station, along with and various technical topics relating to amateur satellite work.

Speaking of Project JJ, AMSAT-NA is currently looking for an official name for the project. Entries can be sent to President VE3FRH using ve3frh@amsat.org through November 30th.

Steve Diggs, W4EPI, chaired the conference.

ANS has received many favorable comments about the Symposium.

Antonio, EA4LE, enjoyed the 24 GHz Working Group Session and was impressed by the number of attendees and their contributions. Jim, W5VZF, reported terrific presentations and wonderful visits. "It was great to see old friends again and make some new ones," said W5VZF.

AMSAT Awards Manager Bruce Paige, KK5DO, tells ANS that for those who were not fortunate to be able to attend the Symposium in Atlanta, each of the papers presented is now available via the Internet. Visit http://www.amsatnet.com and follow the links to the 2001 Symposium audio.

AMSAT-NA President Robin Haighton, VE3FRH, was re-elected without opposition to another term at the board meeting. Haighton told the annual business meeting that AMSAT-NA now has more than 5000 members "and continues to grow."

Proceedings of the AMSAT-NA 19th Space Symposium and AMSAT-NA Annual Meeting are available from ARRL.

The 2002 AMSAT-NA Symposium and Annual Meeting will take place November 8-11 in Fort Worth, Texas.

On behalf of AMSAT-NA, ANS would like to express appreciation to Steve and Diana Diggs and their support organization for the wonderful job done in hosting the 2001 Symposium.

[ANS thanks AMSAT-NA and the ARRL for this information]

Digital Communications Conference Successful

The 2001 Digital Communications Conference recently held in Cincinnati, Ohio has been labeled a complete success. The conference was co-sponsored by the ARRL and the Tucson Amateur Packet Radio group (TAPR).

APRS, the Easy-Trak antenna rotator controller, a K8UD satellite seminar, PSK31 (and other innovative digital communications modes), DSP and digital voice technology - along with a K3RXK presentation on the history of amateur radio in space - was just some of the information presented at the Conference.

The 2002 Digital Communications Conference will be held in Denver, Colorado.

[ANS thanks TAPR and the ARRL for this information]

ANS in Brief

ANS news in brief this week includes the following:

Weekly Satellite Report

Link to the weekly report on satellite ...

All Satellites
ISS . RS-12 . RS-13 . RS-15 . AO-10 . UO-11 . UO-14 . AO-16 . DO-17 . WO-18 . LO-19 . FO-20 . UO-22 . KO-23 . KO-25 . IO-26 . AO-27 . FO-29 . TO-31 . GO-32 . SO-33 . PO-34 . SO-35 . UO-36 . AO-40 . SO-41 . SO-42


Please send any amateur satellite news or reports to the ANS Editors at ans-editor@amsat.org, or to ANS Editor Dan James, NN0DJ, at nn0dj@amsat.org.

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This week's AMSAT News Service bulletins were edited by AMSAT  News Service editor Dan James, NN0DJ.

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