May 27, 2016

The CPU from the original PlayStation is guiding the New Horizons space probe

You probably already know that your smartphone is more powerful than the computers used to land astronauts on the Moon. But did you know that the processor used in the original Sony PlayStation  is guiding  the New Horizons space probe. Yep, the same Sony PlayStation   MIPS R3000 CPU



sourse Verge/GameSpot

May 25, 2016

سهيل سات

The launch of the Es’Hail-2 satellite into a geostationary orbit at 25.5 degrees East is planned for December 2016. The coverage area of the amateur radio Narrowband (NB) and Wideband (WB) transponders should extend from Brazil to Thailand.

Es'hail-2 coverage area

Es’hail-2 coverage area

Es’hail 2 will carry two “Phase 4” amateur radio non-inverting transponders operating in the 2400 MHz and 10450 MHz bands. A 250 kHz bandwidth linear transponder intended for conventional analogue operations and an 8 MHz bandwidth transponder for experimental digital modulation schemes and DVB amateur television.
Narrowband Linear transponder
 2400.050 -  2400.300 MHz Uplink
10489.550 - 10489.800 MHz Downlink

Wideband digital transponder
 2401.500 -  2409.500 MHz Uplink
10491.000 - 10499.000 MHz Downlink
Equipment requirements:
X-Band 10 GHz Downlink:
– 89 cm dishes in rainy areas at EOC like Brazil or Thailand
– 60 cm around coverage peak
– 75 cm dishes at peak -2dB
– NB: linear vertical polarisation
– WB: linear horizontal polarisation
S-Band 2.4 GHz NB-Uplink:
– narrow band modes like SSB, CW
– 5W nominal Uplink power (22.5 dBi antenna gain, 75cm dish)
– RHCP polarisation
S-Band 2.4 GHz WB-Uplink (DATV):
– wide band modes, DVB-S2
– peak EIRP of 53 dBW (2.4m dish and 100W) required
– RHCP polarisation
Presentation on Es’hail by Peter Guelzow DB2OS, President of AMSAT-DL, at the 2013 AMSAT-UK Colloquium


May 24, 2016

Tomsk-TPU-120 CubeSat Video

The Russian space agency Roscosmos has released a video of the Tomsk-TPU-120 CubeSat commemorative transmission from the International Space Station.
The satellite was developed by students at the Tomsk Polytechnic University to test new space materials technology and is the world’s first space vehicle with a 3D-printed structure. It was launched from Baikonur to the ISS on March 31, 2016 in a Progress-MS-2 cargo vessel. It will be deployed by hand during a future Russian spacewalk (EVA), which is why unlike other CubeSats this one has a handle. The call sign of the satellite is RS4S.

Tomsk-TPU-120 CubeSat Callsign RS4S

In May 2016 the Tomsk Polytechnic University celebrated its 120th anniversary. As part of the celebrations on May 10/11 the Tomsk-TPU-120 was activated in the ISS and transmitted a greeting to Earth inhabitants, recorded by students of the university in 10 languages: Russian, English, German, French, Chinese, Arabic, Tatar, Indian, Kazakh and Portuguese.
The greeting message was transmitted once a minute on 437.025 MHz FM. One of the Kenwood transceivers on the ISS provided a cross-band relay, re-transmitting the signal on 145.800 MHz FM.
The video, recorded in the Russian ISS Service Module, shows the CubeSat and the amateur radio station.
Watch Микроспутник ТОМСК ТПУ 120 на МКС


ISRO Tests Reusable Space Shuttle

Published on May 22, 2016 by India Today  @ youtube India Today
In a significant step towards developing a full fledged reusable launch vehicle, Indian Space Research Organisation tested a sleek winged prototype through a short test flight. The first such flight which is a technology demonstrator has been launched from the Satish Dhawan Space Centre in Sriharikotta. The idea to develop a vehicle with delta wings and an angled tail fin is to fly into space and land on earth like an aircraft. This will help cut cost satellite launches by 10 times and an advanced version of the vehicle could also be used for manned missions as well.


All Satellites Frequency List Update

Latest Update by JE9PEL, May 22, 2016

SAT mode Finder made by JE9PEL and UY2RA

SAT status and prediction made by JE9PEL and N2YO

May 21, 2016

17 CubeSats were deployed from ISS

17 CubeSats were deployed from the station this week exploring solar flares, the upper atmosphere, Earth imagery, ship tracking and weather.

Published on May 20, 2016