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Written by Lars Thunberg
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Feb 21, 2010 at 07:44 PM |
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Hej,
Dagens nät på 3740 Khz Klockan
10.00
Deltagare
SM4EFW SM4JLX SM4XIO SM5HL SM6NZV SM7WSJ
*Rymdfärjan
uppe http://www.youtube.com/watch?v=W-aDSv494v4&feature=player_embedded#
*ISS
frekvenser (samt några som används vid rymdpromenader)
http://www.issfanclub.com/frequencies
*AO-51
Satelliten
upplevs enligt en del rapporter svagare i signalstyrka numera.
http://www.amsat.dk/oz7sat/tlm/view.php?sat=ao51
Det
kom ett intressant meddelande via e-post listan.
Again, I encourage you
all to research the power levels OUT at the comparison times. That has to at
least be considered in the discussion.
For example:
Power is
"watts" out
Date 435.150 435.300 Battery V
Before
flips
2009-02-09 19:27:04 oz7sat 0 0.779 0.859 7.660 <--- 859 mW
one year ago! compare to today, listed below!
2009-10-25 18:17:01
oz7sat 0 0.452 0.617 7.868
2009-11-25 17:41:51 oz7sat 0 0.361 0.744 7.581
<-- 745 mW before the flip!
2010-01-15 18:45:31 oz7sat 0 0.437 0.462
7.892
Currently:
2010-02-09 17:19:06 oz7sat 0 0.452 0.475 7.752
<-- 475 mW today!
We are running a few hundred milliwatts below what
we were running pre-flip, and a good bit less than we were able to run a year
ago. So you all may be seeing the difference between 600-850 mW and 475
mW. It's real.
Yes, the bird is aging, and we're doing the best we can
to manage the resources available on-board (the limits now are orbit and
battery condition) . The full illumination periods in the last year or
two have taken their toll on the batteries. What will be interesting is to
see what happens when we return to periods of eclipse!! Personally, I don't
expect the situatio to improve, although it might be that the batteries will
cool and some capacity will return. But we'll need it with
eclipses.
73, Mark N8MH
*Övrigt Solens aktivitet ökar
stadigt. Bra aktivitet på satelliterna och undertecknad har hört följande SM
stationer SM0NZY SM5CUI SM7BHH. FO-29 i mycket bra form.
73 Håkan
SM7WSJ
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