Awesome feat!
John WA4WDL
--------------------------------------------------
From: "Mike Seguin N1JEZ" <n1...@burlingtontelecom.net>
Sent: Saturday, November 10, 2012 8:03 AM
To: <tan...@fit.ac.jp>
Cc: <amsat-bb@amsat.org>; <fits...@hotmail.co.jp>
Subject: [amsat-bb] NIWAKA detected in VT on 5.84 GHz!
Hi Takushi,
Success! I was able to detect NIWAKA. It was lower in frequency that I
expected, but with the Funcube, easy to spot.
The Doppler was huge! and I was moving the dish almost continuous to try
and keep up. I'll edit the I&Q RF file and post it so folks can play it
back for themselves.
Two quick screen shots. In the first shot, you can see the signal on the
left side Doppler shifting down. In the second shot, a close up of one
data burst with Doppler - about 3 secs or so...
http://users.burlingtontelecom.net/~n1...@burlingtontelecom.net/images/NIWAKA_1.jpg
http://users.burlingtontelecom.net/~n1...@burlingtontelecom.net/images/NIWAKA_2.jpg
The 5.84 GHz transmitter seemed to come on very close to the set time.
First detection at 12:24:21 UTC.
More later.
73,
Mike, N1JEZ
AMSAT 29649
"A closed mouth gathers no feet"
----- Original Message -----
From: "Mike Seguin N1JEZ" <n1...@burlingtontelecom.net>
Subject: [amsat-bb] Re: 5.8GHz transmission from NIWAKA
Hi Takushi,
Excellent! I'm set and waiting for NIWAKA to come up over the horizon in
about an hour.
73,
Mike, N1JEZ
AMSAT 29649
"A closed mouth gathers no feet"
----- Original Message -----
From: <tan...@fit.ac.jp>
Subject: Re: [amsat-bb] 5.8GHz transmission from NIWAKA
Dear Mike,
We have set the delay command successfully.
NIWAKA will send the 5.84GHz at 12:24:30 on 10th Nov. (UTC)
There may be +,-,30 sec error.
Please watch!
Thank you.
Best 73
de Takushi, JA6AVG
----- Original Message -----
Hi Takushi,
I loaded the latest keps today and the pass times are confirmed.
Looking
forward to hearing NIWAKA!
I will be recording the pass using a FunCube Dongle in I & Q RF mode,
so
I'll have ~ 80 kHz of bandwidth. If I'm able to detect the signal on
10 Nov,
I can try an RTL SDR receiver on 11 Nov that can receive a much wider
bandwidth. I use HDSDR with both SDR receivers.
I will be setting up portable in a nearby parking lot so I have an
unobstructed view to the satellite. I see the Doppler will be quite
large on
both days (~ 125 kHz). I use the original NOVA program on my laptop in
the
field which calculates Doppler for me.
Let's hope for success and thanks for coordinating this test.
73,
Mike, N1JEZ
AMSAT 29649
"A closed mouth gathers no feet"
----- Original Message -----
From: <tan...@fit.ac.jp>
Subject: Re: [amsat-bb] 5.8GHz transmission from NIWAKA
> Dear Mike,
>
> We found the south paths with enough elevation in your suggestions.
> We plan the following times which start 5.8GHz transmission.
> The signal continues around 2 min.
> (1) at 12:24:30 on 10th Nov. (UTC)
> (2) at 11:32:30 on 11th Nov. (UTC)
> According to our calculating orbit software,
> the time is little bit delayed.
> Please confirm with the latest TLE.
> Thank you.
>
> 73
> Takushi, JA6AVG
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