apr 14 2018
Här finner du nyheter om amatörradiosatelliter från hela världen.
jan 28 2018
Nu är AO-92 öppen för amatörradiobruk, eller som det kallas på satellitspråk ”Commissioned”. Nedan kan du läsa det officiella meddelandet inkl. en bra frekvensguide:
On the 03:25 UTC pass on January 26, 2018, AMSAT Vice President –
Engineering Jerry Buxton, N0JY, announced that AO-92 had been
commissioned and formally turned the satellite over to AMSAT
Operations. AMSAT Vice President – Operations Drew Glasbrenner, KO4MA,
then declared that AO-92 was now open for amateur use.
Initially, the U/v FM transponder will be open continuously for a
period of one week. After the first week, operations will be scheduled
between the U/v FM transponder, L-Band Downshifter, Virginia Tech
Camera, and the University of Iowa’s High Energy Radiation CubeSat
Schedule updates will appear in the AMSAT News Service Weekly
Bulletins and will also be posted to the AMSAT-BB, AMSAT’s Twitter
account (@AMSAT), the AMSAT North America Facebook group, and the
AMSAT website at https://www.amsat.org/satellite-schedules/
AO-92 was launched on the PSLV-C40 mission from Satish Dhawan Space
Centre in Sriharikota, India on January 12, 2018. For the past two
weeks, the AMSAT Engineering and Operations teams have been testing
the various modes and experiments on board. Testing has shown that
both the U/v FM transponder and L-Band Downshifter work very well. The
Virginia Tech camera has returned stunning photos and data from HERCI
has been successfully downlinked.
AMSAT thanks the 178 stations worldwide that have used FoxTelem to
collect telemetry and experiment data from AO-92 during the
commissioning process. The collection of this data is crucial to the
missions of AMSAT’s Fox-1 satellites. Please continue to collect data
from AO-85, AO-91, and AO-92.
RADIO PROGRAMMING CHART
Fox-1D Doppler Shift Correction
Memory 1 (AOS) – TX 435.340 MHz (67.0 Hz Tone), RX 145.880 MHz
Memory 2 (Rise) – TX 435.345 MHz (67.0 Hz Tone), RX 145.880 MHz
Memory 3 (TCA) – TX 435.350 MHz (67.0 Hz Tone), RX 145.880 MHz
Memory 4 (Descend) – TX 435.355 MHz (67.0 Hz Tone), RX 145.880 MHz
Memory 5 (LOS) – TX 435.360 MHz (67.0 Hz Tone), RX 145.880 MHz
The L-band experiment will use 1267.350 MHz uplink with 145.880 MHz
downlink. UHF and L-band uplink operation are set by the command
stations; the operating schedule will be posted.
[ANS thanks AMSAT Vice-President Engineering, Jerry Buxton, NØJY,
AMSAT Vice President Operatings Drew Glasbrenner, KO4MA, and AMSAT
Executive Vice President Paul Stoetzer, N8HM for the above information]
jan 22 2018
Det finns en del ny information om arbetet med AO-92 och L-bandstesterna (se även videon nedan).
”The AMSAT Engineering and Operations teams have been hard at work testing the various modes and experiments aboard AO-92 since its launch on January 12th. Since the last update, testing has concentrated on the University of Iowa’s High Energy CubeSat Radiation Instrument (HERCI) experiment and the AMSAT L-Band Downshifter.”
Läs mer på:
jan 22 2018
AO-73 går nu in i kontinuerligt läge där solen lyser på satelliten och därför ändras schemat på AO-73 enligt nedanstående (info från G3VZV AO-73 hemsida):
Obviously, the autonomous switching system that the spacecraft has been using to switch between amateur mode, with the transponder on in eclipse and educational mode with high power telemetry only in sunlight, will no longer work.
Already the periods of eclipse are reducing quite rapidly and we are therefore planning for manual mode switching to take be undertaken. This will start from the week beginning Jan 21st and will follow this initial plan.
Wednesday evening (UTC) or Thursday morning – switch to full time amateur mode – ie transponder on with low power telemetry.
Sunday evening (UTC) or Monday morning – switch to full time educational mode with high power telemetry only.
So if you are planning school demonstrations or particular DXpeditions please take this new schedule into account.
The team may have to flex this plan with experience as this situation was not allowed for in the original mission plan!
jan 13 2018
Lyckad uppskjutning av Fox-1D AO-92 skedde kl 03:59UTC den 12 januari (2018). Telemetri togs emot drygt en timme efteråt. Det finns många källor på internet runt AO-92 och jag hänvisar här till några:
Dec 30 2017
Vill först börja med att tacka alla intresserade för året som gått. Ett speciellt stort tack till Lars som håller vår hemsida rullande.
Det börjar närma sig ett nytt år och då kommer det så småningom ett årsmöte.
Vi skulle behöva bli några fler i ledning av föreningen och saknar några funktionärer. (känner någon att det här kanske kunde vara intressant, så hör gärna av er.)
- Kontaktman QTC. Skall se till att producera samt sända in material till SSA VUSHF redaktör. Helt ok att plocka material från webben varvat med lite unika artiklar Vi skulle vilja ha med något i varje nummer.
mvh Håkan SM7WSJ
Nov 29 2017
AMSAT-SM has some cooperation with the student satellite MIST from KTH. Please read an update from MIST by Sven Grahn (link to PDF):
For more information about MIST see homepage:
Nov 29 2017
AMSAT-SM is proud to announce a donation to ARISS (via AMSAT-NA) of aprox. 285 US$. We hope that this small donation will help ARISS further work with amateur radio from ISS.
Information about AMSAT-SM:
AMSAT-SM is the Swedish section of AMSAT with aprox 220 members (2017). One of our objectives is to inform Swedish hams about the fun with amateur satellites! Not many SM hams are active via satellite at the moment. With the help from our swedish webpage and HF-net we hope that more swedish hams should be using amateur satellites. The AMSAT-SM annual meeting is held every spring. Some weeks on Sundays we have a HF-net on 80 meters with lots of news about satellites and space.
Below you can see the letter and stickers received from ARISS after our donation. Thank you very much for this gift and letter!
Nov 19 2017
Den 18 november 2017 kl 09:47 UTC kom då äntligen nästa satellit i FOX-serien upp och den heter numera AO-91. Just nu går det att ta emot telemetri på 145.960 MHz, sedan blir den en flygande repeater med upplänk på 435.250 MHz FM (67 Hz CTCSS).
Officiella nyhetsbrevet från ANS:
RadFxSat (Fox-1B) Launched, Designated AMSAT-OSCAR 91 (AO-91)
The Delta II rocket carrying RadFxSat (Fox-1B) launched at 09:47:36
UTC on November 18, 2017 from Vandenberg Air Force Base, California.
Following a picture-perfect launch, RadFxSat was deployed at 11:09
UTC. Then the wait began. At 12:12 UTC, the AMSAT Engineering team,
watching ZR6AIC’s WebSDR waterfall, saw the characteristic ”Fox Tail”
of the Fox-1 series FM transmitter, confirming that the satellite was
alive and transmitting over South Africa. Shortly after 12:34 UTC, the
first telemetry was received and uploaded to AMSAT servers by Maurizio
Balducci, IV3RYQ, in Cervignano del Friuli, Italy. Initial telemetry
confirmed that the satellite was healthy.
After confirmation of signal reception, OSCAR Number Administrator
Bill Tynan, W3XO, sent an email to the AMSAT Board of Directors
designating the satellite AMSAT-OSCAR 91 (AO-91). Bill’s email stated:
”RadFxSat (Fox-1B) was launched successfully at 09:47 UTC today
November 18, 2017 from Vandenberg Air Force Base in California and has
been received by several amateur stations.
RadFxSat (Fox-1B), a 1U CubeSat, is a joint mission of AMSAT and the
Institute for Space and Defense Electronics at Vanderbilt University.
The Vanderbilt package is intended to measure the effects of radiation
on electronic components, including demonstration of an on-orbit
platform for space qualification of components as well as to validate
and improve computer models for predicting radiation tolerance
AMSAT constructed the remainder of the satellite including the
spaceframe, on-board computer and power system. The amateur radio
package is similar to that currently on orbit on AO-85 with an uplink
on 435.250 MHz (67.0 Hz CTCSS) and a downlink on 145.960 MHz.
Experiment telemetry will be downlinked via the DUV subaudible
telemetry stream, which can be decoded using the FoxTelem software.
RadFxSat (Fox-1B) was sent aloft as a secondary payload on the United
Launch Alliance (ULA) Delta II rocket that will transport the Joint
Polar Satellite System (JPSS)-1 mission. RadFxSat (Fox-1B) is one of
four CubeSats making up this NASA Educational Launch of Nanosatellites
(ELaNa) XIV mission, riding as secondary payloads aboard the JPSS-1
Since RadFxSat (Fox-1B) has met all of the qualifications necessary to
receive an OSCAR number, I, by the authority vested in me by the AMSAT
President, do hereby confer on this satellite the designation
AMSAT-OSCAR 91 or AO-91. I join amateur radio operators in the U.S.
and around the world in wishing AO-91 a long and successful life in
both its amateur and scientific missions.
I, along with the rest of the amateur community, congratulate all of
the volunteers who worked so diligently to construct, test and prepare
for launch the newest amateur radio satellite.
William A. (Bill) Tynan, W3XO
AMSAT-NA OSCAR Number Administrator”
AMSAT Engineering reminds stations that the satellite will not be
available for general use until the on-orbit checkouts are complete.
Please continue to submit telemetry to assist the Engineering team in
completing the commissioning process.