Kategori: Telemetri

Actually my first decode from CAS-4B. I have used the following hardware and software:

• RX at aprox 145.891 MHz Wide FM BW 13 kHz
• 2 x 6 el VHF Yagi (Vårgårda) circular polarisation
• AlfaSpid RAS az/el rotor
• LNA Mini-2 from SHF Elektronik
• LMR-400 coax
• SDRPlay RSP1a
• 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 v0.21b at mode FSK G3RUH 4800bd.
• GetKISS+ v 1.3.9 from DK3WN
• CAS 4 Telemetry Beacon decoder from DK3WN
  

Today (2021-01-24) I have been following the launch of UVSQ-SAT from the start from SpaceX, to deploy of the satellites to be one of the lucky to be the first to receive and decode telemetry.

Congratulation to all teams behind this satellite!

The decoded data has been sent to MVP Telemetry server:

And also to SatNOGS network:

I have used the following hardware and software:

• RX at aprox 437.019 MHz USB BW 3.6 kHz
• 26 el UHF LFA X-Yagi (2* 13 el) from InnovAntennas.
• AlfaSpid RAS az/el rotor
• LNA Mini-70 from SHF Elektronik
• LMR-400 coax
• SDRPlay RSP1a
• 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.
• Soundmodem G3RUH BPSK v 1.02 at mode BPSK G3RUH 1200bd. Be sure that the BPSK signal is centered ”over” the signal in the spectrum.
  For other settings, the picture below. Note the ”Input device” – that is you virtual audio cable.
  KISS Server Port is connected to UVSQsat Decoder.
  

• UVSQsat Decoder v0.5. Data is beeing sent to both SatNOGS netword database and MVP Telemetry server.

Used the following:

• RX at aprox 145.933 MHz USB BW 3.2 kHz
• 2 * 6 el Yagi circular polarization (Vårgårda)
• AlfaSpid RAS az/el rotor
• LNA Mini-2 from SHF Elektronik
• LMR-400 coax
• SDR Airspy HF+ Discovery
• 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 FUNcube-1 Dashboard. Set to 96 kHz and 16 bit.
• Telemetry software: FUNcube-1 Dashboard.

Strong telemetry at 145.858 MHz easy to decode. Used the following:

• RX at aprox 145.858 MHz USB BW 3.2 kHz
• 2 * 6 el Yagi circular polarization (Vårgårda)
• AlfaSpid RAS az/el rotor
• LNA Mini-2 from SHF Elektronik
• LMR-400 coax
• SDR Airspy Mini
• 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.
• Soundmodem v 1.05 at mode BPSK AX.25 1200bd (1k2). Be sure that the BPSK signal is centered ”over” the signal in the spectrum. See image.
• Telemetry reader and forwarder from DK3WN, in order to see and forward telemetry to SatNOGS. Note that this is a beta version.

AO-73 Funcube-1 at 40mW telemetry but very easy to hear.

Test your UHF antennas with the LO-19 LUSAT constant carrier on 437.125 MHz.