RS-44 業餘衛星 最近開啟 轉頻器 2020-04

RS-44 業餘衛星 最近開啟 轉頻器



西伯利亞州立航太大學製造了 DOSAAF-85 科學衛星，
2019年12月26日發射升空，
為了紀念「陸軍航行與海軍助手志工社團」85周年，
開啟了業餘頻道的轉頻器。

信標: 435.605 MHz – transmits CW call sign RS44

反相轉頻器:
上鏈: 145.965 MHz +/- 30 kHz
下鏈: 435.640 MHz +/- 30 kHz



DOSAAF-85 (RS-44) amateur radio transponder activated
https://amsat-uk.org/2020/04/30/dosaaf-85-rs-44-amateur-radio-transponder-activated/

The amateur radio linear transponder (SSB/CW) payload on the Russian satellite DOSAAF-85 (RS-44) has been activated.

Dmitry Pashkov R4UAB reports:

DOSAAF-85 / RS-44 under construction
DOSAAF-85 / RS-44 under construction

DOSAAF-85 is a small scientific satellite created by specialists of the company Information Satellite Systems (ISS) Reshetnev and students of the Siberian State Aerospace University (SibSAU) Krasnoyarsk.

The satellite is named after the 85th anniversary of the Voluntary Society for the Assistance to the Army, Aviation and Navy, the organization responsible for the military training of Soviet youth.

The DOSAAF-85 satellite is designed to provide amateur radio communications, as well as to develop promising technologies. This is the third satellite that was created by specialists of ISS-Reshetnev and is based on the Yubileyniy platform, which features a hexagonal prism structure with body mounted solar cells.

DOSAAF-95 / RS-44 Antennas, 435 MHz top 145 MHz bottom
DOSAAF-95 / RS-44 Antennas, 435 MHz top 145 MHz bottom

The satellite was launched into orbit on December 26, 2019 from the Plesetsk Cosmodrome and is in an elliptical orbit with a perigee of 1175 km, an apogee of 1511 km and an inclination of 82.5 degrees.

Transmitter power: 5 watts
Beacon: 435.605 MHz – transmits CW call sign RS44

Inverting transponder:
Earth-to-Space: 145.965 MHz +/- 30 kHz
Space-to-Earth: 435.640 MHz +/- 30 kHz

Source Dmitry Pashkov R4UAB whose page also contains the satellite’s TLE, see
https://tinyurl.com/RussiaR4UAB

Peter 2M0SQL has added RS-44 to the AMSAT Live OSCAR Satellite Status Page at
https://www.amsat.org/status/

Linear Satellite Frequency Summary https://www.amsat.org/linear-satellite-frequency-summary/

RS-44 Pass Prediction http://amsat.org.ar/pass?satx=rs-44




2020-04-30
2020-05-04