ARLA/CLUSTER: Nova instalação de sistema de transmissão de video de amador na ISS

[João Costa > CT1FBF]

 Ham Video now installed and ready for commissioning

The Ham Video transmitter has been installed in the Columbus module of the
International Space Station March 6, 2014 at approximately 10.00 UTC.

The transmitter was powered on briefly and all control LEDs were nominal.
Ham Video is declared ready for Commissioning.
   Front panel of the HamTV transmitter

The first Commissioning step is planned March 8, 2014. Using call sign
OR4ISS, crew will power on the Ham Video transmitter in configuration 1:

- ARISS antenna 41
- Frequency 2.422 GHz
- Symbol rate 1.3 Ms/s

The transmission will start shortly before the pass of the ISS over Western
Europe at approximately 13.27 UTC.

Acquisition of signal (AOS) at Matera ground station in south Italy will be
at approximately 13.29 UTC.

Matera will receive the Ham Video signals with 3 different receivers.
The output of each receiver will be web streamed over BATC channels ISS1,
ISS2 and ISS3.

The ARISS ground station IK1SLD, located in Northern Italy, will also
receive the Ham Video signals and stream the video over BATC channel ISS4.

The BATC server is available at http://www.batc.tv/

On BATC you can do the following:

- select ISS
- click on one of the ISS channels
- click on Multi screen selector
- select the channels you wish to watch
- click on Watch.

When multiscreen appears, volume is turned down by default. Turn the volume
up using the volume control slider below the image.

During the pass, different configurations will be tested with ARISS antenna
41. After the pass, the Ham Video transmitter will stay powered on in
configuration 1 (see above) till the following Commissioning step, which is
planned Sunday March 9, 2014 at approximately 12.40 UTC.

For about 24 hours, the DATV signal will be transmitted permanently, but
the camera will be powered off. The reason is, that the camera is battery
powered and no provisions are made for frequent battery replacement. This
mode is called "blank" transmission.

Sunday March 9, the transmission will start shortly before the pass of the
ISS over Western Europe at approximately 12.39 UTC.

During Commissioning step 2, different configurations will again be tested,
this time with ARISS antenna 43. The Matera ground station and IK1SLD will
stream the video over the BATC server.

The plan is to resume blank transmission immediately after the pass over
Matera and to continue permanent transmission for one week, till Sunday
March 16, 2014. The frequency will remain 2.422 GHz, but antenna ARISS 43
will be used.

Reports on reception of blank transmissions are very welcome.
Reports can be filed via this webpage:
http://www.spaceflightsoftware.com/ARISS_FSTV/submit.php

Participants using the Tutioune receiving software, developed by Jean
Pierre Courjaud F6DZP, can record as well as stream detailed parameters of
the received signal. Please see: http://www.vivadatv.org/

Thank you for your participation

73,


*Gaston Bertels, ON4WF*ARISS Europe chairman
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