Radio 2 (satellite)
| Radio 2 Radio Sputnik 2 RS-2 |
|
|---|---|
| Type: | Training satellite , amateur radio satellite |
| Country: |
 Soviet Union
|
| Operator: | DOSAAF |
| COSPAR-ID : | 1978-100C |
| Mission dates | |
| Dimensions: | 40 kg |
| Begin: | October 26, 1978 UTC |
| Starting place: | Plesetsk 32/2 |
| Launcher: | Cyclone-3 |
| Status: | inactive |
| Orbit data | |
| Rotation time : | 120.3 min |
| Orbit inclination : | 82.5 ° |
| Apogee height : | 1,712.4 km |
| Perigee height : | 1,693.0 km |
Radio 2 , ( Russian Радио-2 ) also Radio Sputnik 2 , RS-2 , is a former Soviet amateur radio satellite .
construction
The amateur radio satellite Radio 2 was developed and built in parallel with Radio 1 by students from the Moscow State Aviation Institute (MAI) . Both satellites are similar, but not identical in construction. The satellite has a cylindrical construction with a diameter of 420 mm and a height of 390 mm. The transmitter and receiver devices of the converter and the command system, as well as the telemetry system, heat regulation and the chemical voltage sources are housed in this body. The mass is 40 kg. The power supply came from solar cells and chemical voltage sources. The satellite carried a command receiver for remote control and a beacon transmitter that also sent telemetry data. Morse code and a data format with 100 baud transmission speed were used to transmit the telemetry. He also carried a 40 kHz wide linear transponder from the 2 m band to the 10 m band. A 0.5 µV signal at the input of the receiver generated an output power of 100 mW at the output of the converter. The maximum output power of the linear transponder was 1.5 W. Radio 1 had a dipole antenna (Inverted Vee) for the 2 m band and a quarter-wave antenna (rod antenna) for the 10 m band.
mission
The satellite was launched on October 26, 1978 together with Radio 1 and the dummy satellite Kosmos 1045 with a Soviet Zyklon-3 launcher from the Plesetsk cosmodrome .
The command stations were located in Moscow (call sign RS3A), in Arsenyev (RS0A) and near Novosibirsk (RS3B). Radio 2 ceased operations in March 1979.
Frequencies
- Uplink 145.880… 145.920 MHz ( SSB , CW , max. 1500 mW)
- Downlink 29.360 ... 29.400 MHz (SSB, CW)
- Call sign: RS
literature
- NN: The amateur radio satellites "Radio 1" and "Radio 2", Funkamateur 1979, issue 3, pages 109–111
- Labutin, L., UA3CR: First results of the work of "Radio 1" / "Radio 2" (excerpts from Radio 1979 issue 5), Funkamateur 1979 issue 11, page 528
- Davidoff, Martin: The Radio Amateurs Satellite Handbook, The American Radio Relay League, 1998