Categories
Telemetry

SWSU telemetry over Stockholm 2022-08-08

Several of the SWSU satellites spotted/heard over Stockholm. Strong downlinks, antenna (13 el Yagi) fixed position Az: 147 El: 7

SWSU-55 #1 & R-390 (SWSU #5)
Callsign: RS10S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.050 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 2 (SWGU No. 6)
Callsign: RS11S
Telemetry: 437.050MHz 1200 bps .AX25 AFSK;
Payload: 437.062 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 3 (SWGU No. 7)
Callsign: RS1S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.075 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 4 (SWGU No. 8)
Callsign: RS2S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.082 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 5 (SWGU No. 9)
Callsign: RS3S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.100 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 6 (SWGU No. 10)
Callsign: RS4S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.087 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 №7 & R-390 (SWGU №11)
Callsign: RS5S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.1125 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

SWSU-55 No. 8 (SWGU No. 12)
Callsign: RS6S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.000 MHz 1200/2400/4800 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

Tsiolkovsky-Ryazan 1
Callsign: RS9S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.025 MHz 1200 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

Tsiolkovsky-Ryazan 2
Callsign: RS12S
Telemetry: 437.050 MHz 1200 bps .AX25 AFSK;
Payload: 437.0125 MHz 1200 bps .AX25 AFSK, SSTV, AUDIO, TEXT;

Categories
Ham Satellite news

Operating Tips for FM Satellites

From ANS-212 Drew Glasbrenner, KO4MA, AO-91 Control Operator, and Mark Johns, K0JM:

Recent abuses on AO-91, and continued bedlam on FM satellites generally, have raised a growing number of complaints among operators and control stations. Here are some tips to help everyone enjoy these satellites and avoid being labeled as a bad actor:

  1. LISTEN! These satellites are almost always busy when over populated areas. If you aren’t hearing activity on the downlink, it is unwise to make a “blind” call on the uplink frequency. Getting into the satellite is often easier than hearing it. Make certain you copy the downlink before transmitting.
  2. NO CQs. FM satellites have a single channel and many stations are attempting to use the channel in a limited time. There is no time for calling CQ, or for repeatedly announcing your own call. Instead, listen for stations already active on the pass, and when you have an opportunity, make a call to a specific station you wish to work.
  3. BE COURTEOUS. If Station A calls Station B, give Station B at least a millisecond or two to answer, and let them complete their brief QSO. Avoid interrupting or jumping on top of a contact in progress. Give priority to rovers or other special stations that many are anxious to contact.
  4. BE WELCOMING. Make an effort to make calls to unfamiliar callsigns you’ve not yet worked before. Let newcomers have a chance, rather than shutting them out to say hello to stations you greet everyday.
  5. DON’T BE A LID! Do “testing,” whistling, or “hello” someplace else. Modes other than FM voice have no place on these satellites. If you wish to experiment with FT modes, please feel free to do so on AO-109, but definitely NOT on an FM satellite.
Categories
Telemetry

Celesta received and decoded

#Celesta received over Stockholm 2022-07-26 and one packet uploaded to #satnogs

Used hardware and software:

  • RX at 436.500 MHz Wide FM BW 8 kHz
  • 2 x 13 el LFA X-Yagi (InnovAntenna) horisontal polarization worked best
  • AlfaSpid RAS az/el rotor
  • LNA Mini-70 from SHF Elektronik
  • LMR-400 coax
  • Airspy Mini SDR
  • SDR-Console v3 with doppler correction of downlink and satellite tracking, rotor control
  • PstRotator for rotor control interface between SDR-Console and RAS controller
  • VB-Cable: virtual audio cable for piping audio from SDR Console to Soundmodem. Set to 96 kHz and 16 bit.
  • HS Soundmodem version INS-2TD v0.01b at 2400bd
  • GetKISS+ v 1.3.13 from DK3WN
Categories
Telemetry

Greencube received

#greencube received over Stockholm 2022-07-24 with 1KUNS-PF decoder at 2k4.

And look at this amazing MEO orbit!

The use of Dual Channel in SoundModem make it easy to watch and decode two different baudrates in same pass.

Categories
Ham Satellite news

Hams.at activation web page

hams.at is a new satellite activation page by WW1X currently in beta state. This page makes it possible to enter your satellite activation and as a chaser station you can get a track of overlapping passes. It also has i very nice integration to Satmatch and a direct tweet generation for Twitter.

I hope this page can be a central hub for upcoming satellite activations for all users.

Categories
Hamradio from ISS

Multiple reports that NA1SS is active from ISS

On Twitter we can read about multiple reports that NA1SS is using the crossband repeater for FM QSOs.

Uplink: 145.990 (PL 67 Hz to be safe)
Downlink: 437.800