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Re: Re: [amsat-bb] ISS silence



Hello to All and Good Morning;

- I would like to recall the situation I monitored the day before yesterday
at 12.24 LT. (16.24 UTC), when ISS passed over FI96 a 10 min. pass
with a excellent elevation, reading ISS 59+ and I called it Jamming.
At the uplink I heard nothing only on the downlink , undecodable packets
and from time to time CQ NOCALL UI ETC, signal not placed by me.
As the " QRM " sustained over the complete pass, my concern is/was
related to TX overheating and damaging. Francisco reported similar
"QRM" , as I recall. As at the present time we do not have any official
word, I hope a simple reset will make it and that the equipment has only
been switched off due to ISS maneuvers

Best Regards
Nicolaus Sallay - PP8DA
E-mail : n.sallay@internext.com.br

----- Original Message -----
From: "Dr Dave Larsen [ PhD ]" <doc@volcano.net>
To: "Dr Dave Larsen [ PhD ]" <doc@volcano.net>; "'Margaret Leber (K3XS)'"
<maggie@voicenet.com>
Cc: "Francisco P Costa" <francisco-p-costa@telecom.pt>; <amsat-bb@AMSAT.Org>;
<sarex@AMSAT.Org>
Sent: Wednesday, April 18, 2001 5:22 PM
Subject: RE: [sarex] Re: [amsat-bb] ISS silence


>
>  I did not get a chance to see the "HOLE" string - but this looks like
> someone on the grd for got to put a call sign in and made a digi through
> ISS's Digi  -
>
>  Also with the Shuttle "coming to visit" the crew is probley house cleaning
> The ham eqm - unlike MIR has to be stowed away and has no perm. place
> out of storage.
>
> Dave
> N6CO
> >
>
> ----------
> From: Margaret Leber (K3XS)
> Sent: Wednesday, April 18, 2001 2:04 PM
> To: Dr Dave Larsen [ PhD ]
> Cc: Francisco P Costa; amsat-bb@AMSAT.Org; sarex@AMSAT.Org
> Subject: Re: [sarex] Re: [amsat-bb] ISS silence
>
> "Dr Dave Larsen [ PhD ]" wrote:
>
> >  The crew had been docking and updocking  TM31 to change ports - so I would
> > think they would turn off all RF com links  - I have a PacComm and have
> > been trying for the last 3 days to "over load" it  - C to NOCALL - digi at
the same
> > time ETC - so far its still-a-running
>
> You're doing that with nothing connected to the console port, right?
>
> Four frames a second of "NOCALL>CQ<<UI>>:" just plain looks scary. But ARISS
> being powered down for the Soyuz maneuver is the simplest hypothesis for the
> lack of signal, and if it *was* driven into a loop somehow (free memory
> exhaustion?) the mode change for the station may have the beneficial side
effect
> of resetting the TNC.
>
> Of course, it's possible that the stream in question might not have come from
> ISS at all.
>
> 73 de Maggie K3XS
>
> --
> -----/___.   _)   Margaret Stephanie Leber    / "The art of progress  /
> ----/(, /|  /| http://voicenet.com/~maggie   / consists of preserving/
> ---/   / | / |  _   _   _    `  _AOPA 925383/ order amid change and /
> --/ ) /  |/  |_(_(_(_/_(_/__(__(/_  FN20hd / change amid order."   /
> -/ (_/   '  K3XS  .-/ .-/    ARRL 39280   /___ --A.N.Whitehead ___/
> /____ICQ 7161096_(_/_(_/__AMSAT 32844____/ <maggie@voicenet.com>
>
> ----
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