SATELLITI RADIOAMATORIALI ATTIVI
JULY 2011
AMSAT-OSCAR 51 (Echo or AO-51)
Analog Uplink:145.920 MHz FM (PL - 67Hz)
1268.700 MHz FM (PL - 67Hz)
Analog Downlink:435.300 MHz FM
2401.200 MHz FM
PSK-31 Uplink28.140 MHz USB
Digital Uplink:145.860 MHz 9600 bps, AX.25
1268.700 MHz 9600 bps AX.25
Digital Downlink:435.150 MHz 9600 bps, AX.25
2401.200 MHz 38,400 bps, AX.25
Broadcast Callsign:PACB-11
BBS Callsign:PACB-12
Launched June 29, 2004
AO-51 -- 30 Nov. 2011: Creased transmission
Status: Operational
AMSAT-OSCAR 51 or Echo as it is more commonly known is a FM
satellite carrying 4 VHF receivers, 2 UHF transmitters, a multimode
receiver and a 2400MHz transmitter. It can handle voice and FSK data
up to 76.8Kbps. Echo was launched into a low, sun-synchronous polar
orbit approximately 850 km high. You must transmit a 67Hz PL tone in
order to access the Echo voice repeater.
Please note the change in operational phone downlink frequency to
435.300 MHz.
AMSAT OSCAR 7 (AO-7)
Mode B and C Uplink432.125 to 432.175 MHz CW/LSB
Mode B and C Downlink145.975 to 145.925 MHz CW/USB (inverting)
Mode B Beacon145.9775 MHz (CW telemetry)
Mode C Beacon435.100 MHz (intermittent)
Mode A Uplink145.850 to 145.950 MHz CW/USB
Mode A Downlink29.40 - 29.50 MHz CW/USB (non-inverting)
Mode A Beacon29.502 MHz (CW telemetry)
Launched 15 November 1974
Status: Semi-operational
AO-7 became non-operational in mid 1981 due to battery failure . In
2002 one of the shorted batteries became an open and now the
spacecraft is able to run off solar panels. For this reason it is
not usuable in eclipse and may not be able to supply enough power to
the transmitter to keep from frequency modulating the signal. Lately
AO-7 has favored Mode B almost exclusively.
Mode A is equivalent to Mode V/A
Mode B (8 Watts PEP) is equivalent to Mode U/V
Mode C is the same as Mode B however the power is 2.5 Watts PEP
There is also a 13 cm beacon at 2304.1 MHz, however this does not
get turned on as it is outside the Amateur allocation for 13 cm.
AMRAD OSCAR 27 (AO-27)
Uplink145.850 MHz FM
Downlink436.795 MHz FM
Launched26 September 1993
Status: Operational
The AO-27 Team has reported that a new schedule has been uploaded.
If the batteries hold then it should continue to run. If the
batteries get too low then the software will turn the schedule off
and the control operators will have to compute another one. The
current schedule indicates that AO-27 is turned on for analogue
operations during a 6 minute pass on the ascending pass. As in the
past, the analogue mode is preceded and followed by 1 minute of
digital TLM. A TLM stream is also transmitted for one minute on the
decending pass.
The latest information on AO-27 from control operator Michael
Wyrick, N3UC (former N4USI), can be found at http://www.ao27.org/
Fuji OSCAR 29 (FO-29)
Analog Uplink146.000 to 145.900 MHz CW/LSB
Analog downlink435.800 to 435.900 MHz CW/USB
Beacon435.795 MHz (normally CW telemetry)
Digital Uplink145.850, 145.870, 145.910 MHz FM
Digital Downlink435.910 MHz 1200 baud BPSK or 9600 baud FSK
Digitalker435.910 MHz FM
Launched17 August 1996
Status: Operational
Please send the reception reports to lab2@jarl.or.jp . Please use
the subject line: 'FO-29reception report'.
Mineo, JE9PEL, has an FO-29 satellite telemetry analysis program
that will automatically analyze all digital telemetry from the
satellite (such as current, voltage and temperature). FO29CWTE is
available at:
http://www.ne.jp/asahi/hamradio/je9pel/
Saudi-OSCAR 50/SaudiSat 1C (SO-50)
Uplink145.850 MHz FM
Downlink436.795 MHz FM
Launched 20 December 2002
Status: Operational
SO-50 carries several experiments, including a mode J FM amateur
repeater experiment operating on 145.850 MHz uplink and 436.800 MHz
downlink. SO-50 is operational for 10 minutes when turned on by the
following procedure:
1) Transmit for 1-2 seconds on 145.850 MHz with a tone of 74.4 Hz to
arm the 10 minute timer on board the spacecraft.
2) Next transmit on 145.850 MHz (FM Voice) using 67.0 Hz to key the
repeater on and off within the 10 Minute window.
Note: Sending the 74.4 tone again within the 10 minute window will
reset the 10 minute timer.
VO-52 (Hamsat)
Analog SSB/CW
Dwn: 145.870 - 880 - 890 - 900 - 910 - 920 - 145.930
Up : 435.280 - 270 - 260 - 250 - 240 - 230 - 435.220
Status: Operational
SO-67 (SumbandilaSat)
Analog FM Voice
Up : 145.875
Dwn: 435.345
(Check http://www.amsatsa.org.za/ for schedule)
233.6 Hz CTCSS tone for access
Beacon: Dwn 435.300
ARISSat-1 (RS01S)
FM Voice, Telemetry, SSTV: Dwn 145.950
CW: Telemetry, callsigns: Dwn: 145.919
USB - BPSK-1000 Telemetry: Dwn: 145.920
Transponder U/v: CW/SSB
UP: 435.758 - 754 - 750 - 746 - 742
Dwn: 145.922 - 925 - 930 - 934 - 938
Amateur Radio on the International Space Station (ARISS)
Region 1 2m uplink145.200 MHz FM
Regions 2 & 3 2m uplink144.490 MHz FM
Cross Band Repeat Uplink437.800 MHz FM
Worldwide downlink (All modes)145.800 MHz FM
Worlwide Packet uplink145.990 MHz FM
US Voice CallsignNA1SS
Russian Voice Callsigns RS0ISS, RZ3DZR
UI Digipeater Callsign ARISS
Bulletin Board Callsign RS0ISS-11
Status: Operational
The ISS system has sometimes been turned on to Cross Band Repeat
mode. In this mode it functions as a Mode B-FM repeater. Amateurs in
the US and elsewhere have reported using the repeater with home
stations and handheld radios with great success. The crew is also
able to use the radio to transmit even when the system is in this
mode.
While the system is in cross band repeat mode the packet system is
turned off and vice-versa.
The ISS daily crew schedule can be found at
http://spaceflight.nasa.gov/station/timelines/. Remember that the
crew operates on UTC time. Also, all of the time line is NOT
translated from Russian and posted.
Current ARISS News is available at the ARISS page in this website.
Additional information is available at: http://www.rac.ca/ariss/
23.08.2011