March 27, 2018

NUSAT-2 beacons


 NUSAT-2 ACTIVE
 437.445 9K6 19K240K0 GFSK




The Argentinian ÑuSat earth observation satellites form the Aleph-1 constellation developed and operated by Satellogic S.A.
The satellites in the constellation are identical 40 cm × 43 cm × 75 cm spacecraft of 37 kg mass. The satellites are equipped with an imaging system operating in visible light and infrared. The constellation will allow for commercially available real-time Earth imaging and video with a ground resolution of 1 m. The satellite were developed based on the experience gained on the BugSat 1 (Tita) prototype satellite.
An U/V transponder with 2 W of output power for 8 GHz downlink and 2 GHz uplink will be operating on 100 kHz bandwidth. For backup telemetry, designers are considering UHF transponder operating at 9k6 GFSK.
Additionally, ÑuSat-1 carries a U/V linear transponder called LUSEX provided by AMSAT Argentina (AMSAT-LU) to offer services to the HAM community.
The Aleph-1 constellation will consist of up to 25 satellites.
  • The first two satellites, ÑuSat 1 and 2 were launched as piggy-back payloads on a Chinese CZ-4B rocket in April 2016 from the Taiyuan Satellite Launch Center into a 500 km sun synchronous orbit with an inclination of 97.5°.
  • The third, ÑuSat 3, followed in 2017 also as piggy-back payloads on a Chinese CZ-4B rocket.
  • Another pair, ÑuSat 4 and 5 will launch in early 2018 as piggy-back payloads on a Chinese CZ-2D (2) rocket.
  • Three more, ÑuSat 6, 7 and 8 will follow in 2018 also as piggy-back payloads on a Chinese CZ-2D (2) rocket. 
  • Gunter's Space

CHINESE SPACE STATION TO DISINTEGRATE

CHINESE SPACE STATION TO DISINTEGRATE: China's Tiangong-1 space station is about to return to Earth--as a massive fireball. Low solar activity kept Tiangong-1 in orbit longer than officials predicted, but it's finally coming down. The European Space Agency says the 8-ton craft should re-enter sometime between March 30th and April 2nd, a window of uncertainty which will narrow in the days ahead.


Above: The green band in this map shows the broad area where Tiangong-1 could potentially re-enter, given the uncertainties on March 26th. Source: The European Space Agency's
 Spaceweather     

Photos received via Falconsat-3 from brazil

Roland PY4ZBZ, uploaded two photos to Falconsat-3 digital store-and-forward system, from Brazil.  I was succeed to download both photos in one pass over Africa.
 QSL card from anthenoxat-1,. and  antenna photo.
Thanks my friend Roland, for sharing those nice photos.


Rolands webside  
 Roland Falconsat-3 webpage

March 24, 2018

Very strong NUDTSat (QB50 CN06 )Telemetry Beacon !!


Very strong NUDTSAT satellite Beacon Telemetry .Mode 9600 BPSK @ 436.270 Mhz
Direct decode or replay IQ file -RX  Mode @ USB .
Soundmodem (BPSK G3RUH 9600) ver0.04b by UZ7HO.(other-versions.zip)



NUDTSat (National University of Defense Technology Satellite) is a 2U-CubeSat for technolgy development and upper atmosphere science. It is developed and built at the National University of Defense Technology (NUDT).
It is a part of the QB50 constellation to gather science data in the upper layers of the troposphere in the altitude range from 350 km down to 200 km. The QB50 project, which will demonstrate the possibility of launching a network of 50 CubeSats built by Universities Teams all over the world as a primary payload on a low-cost launch vehicle to perform first-class science in the largely unexplored lower thermosphere.
It carries a Science Unit (SU) named INMS (Ion/Neutral Mass Spectrometer) for sampling of low mass ionized and neutral particles in lower thermosphere, such as O, O2, and N2.

March 20, 2018

ATHENOXAT-1

Icon received from Athenoxat-1 telemetry
 

 
 

March 18, 2018

WISP+SM+HW VSP

Working Falconsat-3 with hardware TNC is piece of cake. compared to combination of multi-software to read data and keying the rig .

TX LINE -WISP-> HW VSP-> SOUMDMODEM -> 9600 DATA --> Keying circuit
RX LINE -SDR-> SOUNDMODEM (FULL DUP)

I succeed to upload a message to FS-3 .
 Also got the "NO -5" errors.when I requesting the Dir.

Other problem during handshake, the transmitter noise desensitization (desense)  the SDR receiving signal . (instead dozens  ferrite choke on every wire and coax ). All equipment has a decent earthing too.


March 8, 2018

The FalconSAT-3 satellite..


 The FalconSAT-3 satellite Packet Bulletin Board System
 Packet Bulletin Board System is active .



The FalconSAT-3 satellite is in a 35.4 degree inclination orbit, with an approximate altitude of 465 to 476 km. The Packet Bulletin Board System is operating at 9600 baud with a 145.840 uplink, and 435.103 downlink. Output power is 1 watt, and the downlink is continuously on. Current Keplerian elements can be found in the AMSAT distributed Keplerian elements. More information can be found at https://www.amsat.org/falconsat-3/

CAS-4A & CAS-4B satellites beacon

CAS-4A ACTIVE BEACON @145.835 MODE 4k8 FSK AX.25 Callsign BJ1SK
CAS-4B ACTIVE BEACON @145.890 MODE 4k8 FSK AX.25 Callsign BJ1SL


March 1, 2018

Falconsat-3 satellite back to business !!!

Great job AMSAT-NA. 👍Thanks.
Falconsat-3 satellite perfectly back to business .