Hi All,
The power budget on AO-51 has really been stretched with both transmitters on,
so we are now in single transmitter mode. That means quite a bit more power on
435.300 (the voice repeater), which is now around 1.3W or so. We'll be in this
mode for a while (until further notice).
Hello All,
Power up that L-band transmitter!
AO-51 is about 2 days away from full sun. On-board temperatures are climbing,
and it looks like we have just enough power to try to run both repeaters. It
will take some tweaking of various power management parameters, and we'll see
how things
Hi All,
We are back in normal mode as of about 20:30utc 22 Dec 2010--but the L-band
uplink to the PBBS is OFF for a bit so that we can try to catch up on the
download of whole orbit data that has been accumulating during the S-band
period. It might remain off for a day or so, we'll see.
We
Hi All,
The mode change is complete, according to schedule.
November 18 (late UTC)
FM Repeater, L/SU
Uplink: 1268.705 MHz FM (no PL tone)
Downlinks: 2401.200 MHz FM *and* 435.300 MHz FM (at low power!)
The next mode change will be:
November 21 (late UTC)
FM Repeater, V/U
Uplink: 145.920 MHz
Mode change has been completed, as per schedule at
http://www.amsat.org/amsat-new/echo/CTNews.php
November 4 (late UTC)
FM Repeater, V/U
Uplink: 145.920 MHz FM (no PL tone)
Downlink: 435.300 MHz FM
and
9k6 Baud PBBS Operations, L/U
Uplink: 1268.705 MHz FM at 9600 baud
Downlink: 435.150 MHz
Hi All,
You can expect the mode change on AO-51 from S-band to U/V to occur around 1120
utc tomorrow (Monday, 5/17).
73,
Mark L. Hammond [N8MH]
___
Sent via amsat...@amsat.org. Opinions expressed are those of the author.
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Attempted to use this mode on 2 passes but was not successful.
Several stations tried to work on the first pass over Australia
(07:51 UTC 29 Dec) but audio was very weak and there was a lot of
interference on the signal.
Some stations had difficulty netting onto frequency, probably because
AO-51 has been switched to the SSB/FM crossmode repeater, 145.880 USB
up, 435.150 FM down. Power output is 1.93 watts. The downlink modulation
is set very high, so that even very weak signals will be audible. The
downside to this is that someone running excessive power will cause the
downlink
Hi All,
Around 2230UTC 20 Dec 2009 the mode on AO-51 was changed according to the
posted schedule as follows:
December 21 - December 28
FM Repeater, V/U
Uplink: 145.920 MHz FM
Downlink: 435.300 MHz FM
9k6 BBS, L/U
Uplink: 1268.700 MHz 9k6 FM
Downlink: 435.150 MHz 9k6 FM
The FM
AO-51 is back to it's normal configuration, 145.920/435.300 repeater at
510mw, and 1268.700/435.150 BBS at 540mw. The digipeater is on, and I
apologize to our Japanese friends who are fond of using the digipeater
that we have neglected to make sure it stays on.
The BBS is set to a slightly
To any Command Team members:
I have a great pass at just after 7.00pm edt this evening, that's only
23:00 utc - so will AO-51 remain in its current config until 00:00utc
and be commanded by someone else on the planet?
I just don't want to set everything up for Mode S to find that its
stopped
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