Category: Ham Satellite news

AMSAT-SM gratulerar BRICsat och PSAT och dess team för att de blivit tilldelade Oscar-nummer: NO-83 och NO-84!

Läs allt om satelliterna här: http://www.aprs.org/psat.html

Frekvenser:

PSAT: 145.825 – 1200 baud AX.25 telemetry – digi off
PSAT PSK31-5: 435.350 FM down, 28.120 SSB PK31 uplink – Brno University

BRICsat: 437.975 – 9600 baud telemetry evry 20s
BRICsat PSK31-6 – same as PSAT but PSK TLM on 375 Hz (PSAT on 315 Hz)

Det finns en ny video från Jerry Buxton N0JY om Fox-1c:

Håkan SM7WSJ skriver:

Förutom att vi har FOX satelliterna http://www.amsat.org/?page_id=1113 på väg upp i rymden under året, så kommer vi även att få ett antal nya linjära satelliter uppskickade från Kina.

Det verkar vara ett stort intresse för rymden från nya spelare (nationer) och det skulle inte förvåna mig om vi inom några år återigen får se någon amatörsatellit i högre bana.

Känns ännu mer inspirerande att bygga upp sin nya satellitstation med så mycket på väg upp i omloppsbana.

73 Håkan SM7WSJ

PS: Se även http://amsat-uk.org/2015/05/24/nine-cas-3-ham-radio-satellites/

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CAMSAT announces mid-July launch with six U/V transponders

Alan Kung, BA1DU (CAMSAT CEO) recently sent AMSAT-NA the following
press release:

CAMSAT orchestrated CAS-3 amateur satellite system is now nearing
completion, six Chinese amateur satellites will be launched in mid-
July,it includes different weight category satellites, consists of a
20 kg, three 10 kg and two 1 kg satellites. All six satellites are
equipped with substantially the same amateur radio payloads, a U/V
mode linear transponder, a CW telemetry beacon and an AX.25
19.2k/9.6k baud GMSK telemetry downlink are attached in each of the
six satellites, each set of amateur radio equipments has the same
technical characteristics, but operates on different frequencies of
70cm band uplink and 2m band downlink.

During the years, CAMSAT works closely with DFH Satellite Co. Ltd to
complete the project, which is Chinese government aerospace
contractor and provided most of the support for this project. All the
satellites are currently conducting final testing and inspection,
here are the technical details:

CAS-3A:

– Micro-satellite architecture
– Dimensions: 400Lx400Wx400H mm
– Mass: 20kg
– Stabilization: three-axis stabilization system with its +Y surface
facing the earth
– Antenna: Deployable antenna, one 1/4? monopole VHF antenna with
max.0dBi gain is located at +Z side and one 1/4? monopole UHF
antenna with max.0dBi gain is located at –Z side, close to the each
edge of satellite body
– Uplink: 70cm band
– Downlink: 2m band
– Amateur radio payloads:
Callsign: BJ1SB
CW Telemetry Beacon: 50mW, 22wpm
U/V Mode Linear Transponder: 100mW, 20kHz bandwidth, spectrum
Inverting
AX.25 telemetry: 100mW, 19.2k/9.6k baud GMSK

CAS-3B, CAS-3C and CAS-3D:

– Micro-satellite architecture
– Dimensions: 250Lx250Wx250H mm
– Mass: 9kg
– Stabilization: three-axis stabilization system with its +Y surface
facing the earth
– Antenna: Deployable antenna, one 1/4? monopole VHF antenna with
max.0dBi gain is located at +Z side and one 1/4? monopole UHF
antenna with max.0dBi gain is located at –Z side, close to the each
edge of satellite body
– Uplink: 70cm band
– Downlink: 2m band
– Amateur radio payloads:
Callsign: BJ1SC ( for CAS-3B), BJ1SD ( for CAS-3C), BJ1SE (for CAS-3D
CW Telemetry Beacon: 50mW, 22wpm
U/V Mode Linear Transponder: 100mW, 20kHz bandwidth, spectrum
Inverting AX.25 telemetry: 100mW, 19.2k/9.6k baud GMSK

CAS-3E and CAS-3F:

– Cube-satellite architecture
– Dimensions: 110Lx110Wx110H mm
– Mass: 1.5kg
– Stabilization: Spinning stabilization using permanent magnet torquer
– Antenna: Deployable antenna, one 1/4? monopole VHF antenna with
max.0dBi gain is located at +Z side and one 1/4? monopole UHF
antenna with max.0dBi gain is located at –Z side, close to the each
edge of satellite body
– Uplink: 70cm band
– Downlink: 2m band
– Amateur radio payloads:
Callsign: BJ1SF ( for CAS-3E), BJ1SG ( for CAS-3F)
CW Telemetry Beacon: 50mW, 22wpm
U/V Mode Linear Transponder: 100mW, 20kHz bandwidth, spectrum
Inverting
AX.25 telemetry: 100mW, 9.6k baud GMSK

This launch will use an brand new Chinese launch vehicle named as
Long March – 6 (LM-6 or CZ-6) at Taiyuan Satellite Launch Center of
China, CAS-3A will operate at about 450 km height sun-synchronous
orbit, the other satellites will operate at about 530 km height sun-
synchronous orbit.

The launch will carry total of 20 satellites, there are other three
satellites named as CAS-3G, CAS-3H and CAS-3I involved in amateur
radio from other agencies of China will share the same launch, CAMSAT
was assisting Chinese government administration to coordinate and
allocate their frequencies, more details will be announced later.

Kan meddela att det kommit upp nya satelliter från USNA PcSat-familjen under maj 2015. Pga. mycket jobb har jag inte hunnit skriva om eller lyssna på dessa ännu, men mera info finns här:

http://amsat-uk.org/2015/05/22/usna-cubesat-status-update/

Det finns bla. en PSK31-transponder på dessa satelliter.

I de senaste nyhetsbreven från ANS har det varit många intressanta nyheter. Här kommer en sammanställning:

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Announcing EO-79 transponder testing for one full orbit – May 4

Wouter Weggelaar PA3WEG from AMSAT-NL reported via the AMSAT-BB that
on Monday May, there is a fairly high chance that the AMSAT-NL
transponder will be tested for one full orbit.

Details will be made available on short notice, but the target time
for an activation starts at approximately 08:30 UTC and may last
until about 10:10 UTC.

The aim of the test is to characterize the power budget on board EO-
79. Usage of the transponder is being encourage. Please also report
the QSOs and signal reports to pa3weg at amsat.org

[ANS thanks Wouter Wouter PA3WEG for the above information]

EO-79 / QB50p1 First Transponder Test Success

AMSAT-NL is delighted to announce that an initial series of tests of
the FUNcube transponder payload aboard the QB50p1 CubeSat have been
successfully completed.

QB50p1 is one of two QB50 precursor spacecraft that were launched
from Yasny in Russia in June 2014.

The primary science payloads are still being extensively tested but
it has now been possible to undertake a short test of the transponder
payload as well. The transponder is intended as a long term secondary
mission following the initial technology demonstration and de-risking
phase.

After spending ten months in space, the transponder was commanded on
for short periods during each of the three morning passes over Europe
on Monday 27th April 2015. A number of FUNcube team members in the
Netherlands and in the UK were standing by to run through a
predefined test plan.

The transponder has a similar performance to that of FUNcube-1 but
the passband is nominally 5 kHz wider by design.

It is not yet known when this transponder may be available for
regular usage but AMSAT-NL is delighted to be able to report that the
hardware is functioning and is very grateful to the QB50 project, the
Von Karman Institute and ISIS B.V. for their ongoing support.

More information about the QB50 project can be found at
https://www.qb50.eu/

AMSAT-NL: http://amsat-nl.org

AMSAT-UK: http://amsat-uk.org

[ANS Thanks Graham G3VZV for the above information]

AMSAT-SM donates $1600 USD for the FOX satellite project

“AMSAT-SM believe that FOX project is very important to continue to
develop amateur radio on board satellites. We therefore hope that our
contribution can help the FOX satellites up in space.”

AMSAT-SM in Sweden has aprox 150 members. Membership is currently
free and registration is done online at our website: www.amsat.se

[ANS thanks Lars Thunberg SM0TGU for the above information]