2 hours ago
Last night's Chang'e 5.
@coastal8049 list:
Orbiter-B - 8463.7MHz (decoded)
Orbiter-A - 8571.2Mhz (detected)
Lander - 8455MHz (no signal)
AZ and EL offsets needed to correct SpaceTrack elements. As much as +7 deg AZ and -1.5 deg. EL. Offsets were changes before and after TCA. https://t.co/5CKAXPxevV
8 hours ago
More X-band wonders coming out of the lab today. A VE4MA choke ring made out Aluminum to reduce system weight. Next is the depolarizer and transition. Goal ultra light dish and feed for telescope mounting. https://t.co/1POcDAXFHe
16 hours ago
This is the high speed data downlink, 2.5MSym/s BPSK, CCSDS framed, but not using APIDs. Uses some custom protocol on VChan 38. It was very busy earlier, now it's mostly idling with some basic telemetry.
This looks like 8 channels of accelerometer data, some changes are visible: https://t.co/3LigSvKfqs https://t.co/0frT5rixkk
20 hours ago
Chang'e 5 Downlink on X-Band centred on 8455MHz, a lump of fast wide band data! https://t.co/Eye0cMFFCf
22 hours ago
Feed center check with laser bore sight in custom self-centering printed adapter plate!
Seems there is room for improvement.
WIll install some turnbuckle threaded rods to allow adjustment per feed leg. https://t.co/2N0hnpRgrh
Monthly Archives: June 2012
SATCOM Logs 29-June-2012
CONUS 258.650: 92 calling for radio check.
SATCOM Logs 28-June-2012
CONUS 266.750: Romeo Sierra requesting Cheeksaw.
HF Logs 27-June-2012
5732 USB 0847 UTC: CAMSPAC giving Rescue 1703 SAR coordinates. [audio:https //usa-satcom.com/wp-content/uploads/2012/06/F13407868701.mp3][/audio]
HF Logs 26-June-2012
5732 USB 0230 UTC: Rescue 1702 calling CAMSPAC to take guard for SAR operation 200 miles of coast of Mendocino.
HF Logs 22-June-2012
7527 USB 0836 UTC: Rescue 1714 requesting guard from CAMSPAC Pt. Reyes. Enroute to Lake Tahoe for SAR operation.
S-Band Shuttle Audio
The shuttle fleet has been retired and new commercial space vehicles (SpaceX) are being deployed for shuttling people and cargo to and from the International Space Station. In more of a historical archive move I have collected all of the … Continue reading
Posted in Spacecraft
Tagged S-Band
QS1R Clock Modification
I just added some images and details on QS1R Clock Modification. This modification allows the SDR hardware to accept a 125MHz PLL source clock that is referenced to an external 10MHz timing signal (e.g. GPS referenced).
SATCOM Logs 20-June-2012
CONUS 260.475: Fortress calling for radio check on CONR 1 with additional information “Adviso 01”. CONUS 260.475: Panther calling any station for radio check on CONR 1.
20MHz of Ku-Band DVB Sprectrum
Below is a 20MHz chunk of Ku-Band DVB spectrum. A mixture of DVB-S1, S2 and VSAT. The displayed frequency is the IF, so you would add 10600 MHz to get actual frequency.
HF Logs 19-June-2012
11494 USB: ALE originated phone patch to Air Station San Francisco. Can only hear one side. [01:07:10][TO ][K20 ][TIS][P33 ][AL0] BER 30 SN 11
