MaSA


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ISS Frequencies Radio : Tracking of the International Space Station

Freq (MHz)

Satellite

Payload

Signal Type

Notes

121.750

Soyuz TMA-1
(Soyuz 11F732 No211)

2002-050A
27552

ISS Crew transport

Medium bandwidth FM voice

Frequency used during on-orbit operations to and from the Space Station, and reportedly used for recovery beacon during landing module descent - Also transmits at 166 MHz and 922.763 MHz

130.167

ISS
(International Space Station)

1998-067A
25544

Space Station

Medium bandwidth FM voice

VHF-2 channel used as an alternative to VHF-1 (143.625 MHz) during Shuttle/ISS on-orbit operations

130.167

ISS
(International Space Station)

1998-067A
25544

Space Station

Ranging pulses

Used by TORU remote control docking system, usually tested 1-2 days before a Progress docking is due, the Progress return path is at 121.750 MHz

143.625

ISS
(International Space Station)

1998-067A
25544

Space Station

Medium bandwidth FM voice

VHF-1 channel, also used to relay Mission Control to the Shuttle - used as part of the ISS Early Communications System over the USA working with the Wallops Facility and White Sands, detected carrying packet data transmissions during Expedition 1

145.800

ISS
(International Space Station)

1998-067A
25544

Space Station

Amateur Radio downlink frequency

Amateur radio downlink - see NASA's ARISS Page

145.825

ISS
(International Space Station)

1998-067A
25544

Space Station

Amateur Radio downlink frequency

Amateur radio downlink - see NASA's ARISS Page

145.990

Suitsat
(Orlan-M No14)

2005-035C
28933

Amateur radio experiment - life expired Orlan spacesuit equipped with a radio transmitter and released from ISS during a crew EVA

NFM - extremely weak

Voice recording + SSTV image - the low power was due to a failed amplifier - Released from ISS 2006 Feb 3 and battery exhausted 2006 Feb 18

166.000

Soyuz TMA-1
(Soyuz 11F732 No211)

2002-050A
27552

ISS Crew transport

FM telemetry - sidebands at +/- 128 kHz

Transmits during on-orbit operations to and from the ISS, and while docked with the space station - The transmission sounds as a loud buzz with sharp peaks at the sideband frequencies - Also transmits at 121.750 MHz and 922.763 MHz

259.700

STS

ISS Crew/payload transport

AM voice

Detected over Europe occasionally prior to Shuttle re-entry from ISS operations, and with voice during the orbital injection phase from Kennedy SC to Europe - also transmits at 2217.500 MHz

628.000

ISS
(International Space Station)

1998-067A
25544

Space Station

FM telemetry - sidebands at +/- 128 kHz

Transmits on command from within Russia - usually in parallel with 630 MHz - Similar transmission format to Soyuz/Progress at 166 MHz but with lower power - part of the BITS telemetry system

630.000

ISS
(International Space Station)

1998-067A
25544

Space Station

FM telemetry - sidebands at +/- 128 kHz

Transmits on command from within Russia - usually in parallel with 628 MHz - Similar transmission format to Soyuz/Progress at 166 MHz but with lower power - part of the BITS telemetry system

632.000

ISS
(International Space Station)

1998-067A
25544

Space Station

FM telemetry - sidebands at +/- 128 kHz

Transmissions originally reported by Sven Grahn when Zarya first reached orbit - Similar transmission format to Soyuz/Progress at 166 MHz but with lower power - part of the BITS telemetry system and probably no longer in use

634.000

ISS
(International Space Station)

1998-067A
25544

Space Station

FM telemetry - sidebands at +/- 128 kHz

Transmissions originally reported by Sven Grahn when Zarya first reached orbit - Transmits on command from Moscow, similar transmission format to Soyuz/Progress at 166 MHz but with lower power - part of the BITS telemetry system and probably no longer in use

922.763

Soyuz TMA-1
(Soyuz 11F732 No211)

2002-050A
27552

ISS crew transport

CW

Part of the REGUL command and control system - there may be other elements of signals on sidebands around this frequency - transmits during the approach and departure phases from the ISS and occasionally during checks while docked - Also transmits at 121.75 MHz and 166 MHz

2217.500

STS

ISS Crew/payload transport

CW carrier plus side bands carrying data

Integrated voice and data on SGLS Channel 4 - transmitter operates almost continuously while the payload bay doors are open, also transmits at 259.7 MHz

Perubahan?!!

Aku terbace satu artikel dari blog sahabat aku. Dlm blog sahabat aku ni mengatakan dia ingin berubah menyebabkan aku pun terpikir aku pun perlu berubah jgk kan?. Huh!! pening gakz aku, ape tak peningnnya umur dah meningkat tapi masih disini jgk. Tapi alhamdulillah kini aku mempunyai keje yg agak aku minat dari dulu lagi. Tiap hari leh kata kan aku mengadap komputer utk dibaiki dan diservice. Walau bagaimana pun bile bekerja ngan org ni biase la mesti ada yg cuba menjatuhkan kita tapi ape2 pun aku cekal kan hati sebb aku tgh pasang azam ni. Huh!! Insyallah aku cuba megejar ape yg dicita kan. Amin!!!