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RE: ISS Packet Turned Off?



 Both radio systems could be turned as early as a few orbits after the conclusion of the EVA. Crew activities may delay the activation of the ISS radio but PCSAT2 should be commanded back on pretty close to that schedule.


Kenneth - N5VHO

-----Original Message-----
From: owner-AMSAT-BB@amsat.org [mailto:owner-AMSAT-BB@amsat.org] On Behalf Of Felim Doyle M3HIM
Sent: Tuesday, July 11, 2006 9:03 AM
To: amsat-bb@amsat.org
Subject: Re: [amsat-bb] ISS Packet Turned Off?

As EVA 3 appears to be going ahead tomorrow, I assume that we won't here from the ISS / PCSAT2 until Thursday (UTC) at the earliest.

Félim M3HIM
----- Original Message -----
From: "Frank H. Bauer" <ka3hdo@comcast.net>
To: <amsat-bb@amsat.org>
Sent: Sunday, July 09, 2006 10:32 PM
Subject: [amsat-bb] ISS Packet Turned Off?


> All,
>
> The packet is turned off primarily as a safety measure to ensure that the
> ham radio systems do not interfere with the electronics embedded in the
> space suit.  As you can well imagine, interference of this nature could
> have disastrous effects.  While this would be highly unlikely, the space
> agencies and the ham radio community mutually agreed that the ham radio
> community would not be too effected by a shutdown during the short time
> that these EVAs occur.
>
> Also, FYI, we shut down during docking maneuvers.
>
> 73,
>
> Frank H. Bauer, KA3HDO
> AMSAT-V.P. for Human Spaceflight Programs
> ARISS International Chairman
>
>
> ----------------------------------------------------------------------
> Message: 10
> Date: Sat, 8 Jul 2006 23:22:37 -0600
> From: Nate Duehr <nate@natetech.com>
> Subject: Re: [amsat-bb] ISS Packet Turned Off?
>
> On Jul 8, 2006, at 10:35 PM, Paul Reilly wrote:
>
>  > Why does it need to be turned off during spacewalks?
>
> I'm not expert, but I'd assume it's because of the potential for
> interference with the numerous other transmitters and receivers in
> use during EVA's.  Basically it probably bottom-lines at "Why risk
> it?".  It's an untested and unknown configuration and no one in space
> in a suit would probably appreciate it much if a ham radio
> transmitter caused problems for them while they're in a very tenuous
> environment.
>
> - --
> Nate Duehr - WY0X
> nate@natetech.com
> ----
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