ARLA/CLUSTER: Os Astronautas escutam em 145,800 MHz.

[Pedro Ribeiro (CR7ABP)]

O título da mensagem está a induzir em erro, eles não escutam nessa 
frequência.

A comunicação directa com a ISS processa-se como se de um repetidor de 
VHF se tratasse sob o ponto de vista terrestre.

Configurar o equipamento para receber em 145.800MHz com a emissão 600KHz 
abaixo, nos 145.200MHz (sem quaisquer tons)
Eles lá têm a configuração ao contrário para nos receberem nos 
145.200MHz e transmitirem para nós nos 145.800MHz

O título mais correcto seria provavelmente:
"Os Astronautas são escutados em 145,800 MHz."

Como nota extra, ontem à noite a ISS esteve mais uma vez "visível" pelo 
menos no centro do país e lá estavam eles no QSO ... ouvi pouco porque 
sintonizei quase na altura em que deixaram de estar em linha de vista.

Mais pormenores técnicos em:
http://spaceflight.nasa.gov/station/reference/radio/
(coluna lateral direita de título "Configuration")

73!

On 07-09-2010 15:54, João Gonçalves Costa wrote:
>
>   Astronauts heard on 145.800 MHz
>
> It's always worth keeping a check on 145.800 MHz FM for the ISS
> astronauts as a YouTube video shows.
>
> The YouTube description reads:
>
> Audio from the ISS amateur radio downlink. Much to my pleasant surprise
> some of the astronauts were on the air talking to stations in Spain and
> the UK. This was the first time I heard NA1SS operating as opposed to
> being in repeater mode. I thought it was a bit quiet when I saw her come
> into view!
>
> Audio recorded using my Yaesu FT-857D & comet GP-6 antenna. In real time
> the audio would have been about 10+ minutes long so its edited to save
> your ears from the white noise.
>
> Watch - International Space Station amateur radio
>
> http://www.youtube.com/watch?v=_eQPU2ctCKY
>
> *The Radio Amateurs on the Space Station call CQ on 145.800 MHz FM*. If
> you hear them calling CQ and you are in the British Isles/*IARU Region 1
> you should go back to them on 145.200 MHz*. This means simply *switching
> in your -600 kHz repeater shift*. The *ISS uses wide (5 kHz) deviation
> FM* so if your radio has switchable FM filters try the wider setting.
>
> Pass predictions and status information are available on the ISS Fan
> Club website
> http://www.issfanclub.com/
>
> Getting started on Amateur Radio Satellites PDF
> http://www.uk.amsat.org/content/view/408/168/
>
> *AMSAT-UK *publish a colour A4 newsletter, OSCAR News, that is full of
> Amateur Satellite information.
> Join online at https://secure.amsat.org.uk/subs_form/
>
>
>
> _______________________________________________
> CLUSTER mailing list
> CLUSTER  radio-amador.net
> http://radio-amador.net/cgi-bin/mailman/listinfo/cluster

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Pedro Ribeiro
Indicativo: CR7ABP
QTH: São Francisco, Alcochete
GRID LOC: IM58MR
** Limitado a RX em Classe3 até 31/03/2012 **
( Decreto-Lei 53/2009, Art 8, 2a e Art 5, 3a )
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