(Araucaria) REP ARISS: ARISSat-1 activated to celebrate 50th anniversary of first human spaceflight

[REP-Rede dos Emissores Portugueses]

*ARISSat-1 activated to celebrate 50th anniversary of first human
spaceflight*

To celebrate the 50th anniversary of the first human spaceflight by
cosmonaut Yuri Gagarin, the ARISSat-1 satellite aboard the International
Space Station will be on the air using the station's external antenna.
Transmissions will begin on Monday, April 11, at 14:30 UTC and continue
until 10:30 UTC on April 13.

To preserve the satellite's battery, transmissions will cycle on and off.
ARISSat-1 will transmit for 40 to 60 seconds, and then remain silent for 2
minutes.

The FM transmissions on 145.950 MHz will alternate between a voice ID,
telemetry values, SSTV images and audio greetings in 15 different languages.
One of the transmissions will contain audio of a conversation between
Gagarin and ground controllers that was recorded during the historic flight.

A CW beacon will be heard on 145.919 MHz cycling between the ARISSat-1 call
sign, telemetry and call signs of individuals involved in the ARISS program.

BPSK-1000 telemetry transmissions will also take place on 145.920 MHz SSB
using the new 1kBPSK protocol developed by Phil Karn, KA9Q.

AMSAT will issue commemorative certificates to listeners who receive the
ARISSat-1 transmissions. Reports can be e-mailed to Gagarin em arissat1.org or
yuri em arrisat1.org. Include your name, call sign, a description of what you
heard and the UTC time you heard it. Recording the battery voltage telemetry
values and the UTC time you received them will be especially helpful.

You can determine when the International Space Station will be passing
overhead by using the AMSAT-NA online pass prediction tool at
http://www.amsat.org/amsat-new/tools/predict/.

Passes over Europe will be in nightly hours.

Technical details are available on the ARRL website
http://www.amsat.org/amsat-new/index.php

Good luck!

73,

Gaston Bertels, ON4WF
ARISS Chairman




_____________________________________________________________________
Rede dos Emissores Portugueses
Associação Nacional de Radioamadores
Fundada em 1926 - Membro da IARU desde 1931
Membro ARISS-Europa / REP-ARISS
Membro AMSAT / REP-AMSAT
Instituição de Utilidade Pública desde 1980
Página na Internet em http://www.rep.pt
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