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Merkouris SV2HWM @SV2HWM
Joined May 2016
  • Tweets 5,874
  • Following 188
  • Followers 1,824
3,563 Photos and videos
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Merkouris SV2HWM@SV2HWM
1 Jan 2020
All twelve Expedition 61 - #ARISS Series 15 #SSTV images transmitted from the #ISS in memory of cosmonaut Alexei #Leonov, as received in Greece on Dec 29-31, 2019 and Jan 1, 2020. @ARISS_status @lambdaprog @AmsatUK @ISS_Ham_Radio @issfanclub @AmsatUK @SWRadiogram @R4UAB @SP3QFE
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2026-06-14 08:54 UTC. Improved reception of the second image "Я люблю Россию", transmitted from the 🇷🇺 🛰️Vizard-Meteo (RS38S) on 437.825 MHz, in Robot36 #SSTV mode. Rx with @airspy_com R2 and 7-element Yagi antenna in 🇬🇷.
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2026-06-14 08:25 UTC. This is definitely my last reception from the decaying 🇷🇺 🛰️ ArcticSat-1 RS74S at an altitude of ~163 km, on 435.890 MHz, in GMSK USP 19200 bd. Five frames uploaded to the @SatNOGS db. It is expected to burn up in the atmosphere during its next few orbits.
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2026-06-13 19:23 UTC. Reception of raw telemetry from the newly deployed 🇫🇷 8U CubeSat 🛰️ BRO-22 on 401.735 MHz, in FSK AX.100 Mode 5 @ 4800 bd. Replay of recorded IQ with @airspy_com R2 and Yagi antenna in 🇬🇷.
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2026-06-13 19:57 UTC. Images received from the 🇷🇺 🛰️Vizard-Meteo (RS38S) on 437.825 MHz, in Robot36 #SSTV mode. Broadcast on the occasion of Russia Day 2026, celebrated on June 12. Rx with @airspy_com R2 and 7-element Yagi antenna in 🇬🇷.
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2026-06-13. Probably my last reception from the decaying 🇷🇺 🛰️ ArcticSat-1 (RS74S) on 435.890 MHz, in GMSK USP @ 19200 bd, at an altitude of ~180 km. Rx in 🇬🇷 with @airspy_com R2 and Yagi antenna. Decoded frames uploaded to the @SatNOGS db. It is expected to re-enter tomorrow.
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It's a worldwide broadcast that ends on Sunday evening Moscow time.
Merkouris SV2HWM@SV2HWM
Jun 12
2026-06-12 20:30 UTC. Image received from the 🇷🇺 🛰️ Vizard-Meteo (RS38S) on 437.825 MHz, in Robot36 #SSTV mode. Broadcast on the occasion of Russia Day 2026, celebrated on June 12. Rx with @airspy_com R2 and 7-element Yagi antenna in 🇬🇷.
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2026-06-12 20:30 UTC. Image received from the 🇷🇺 🛰️ Vizard-Meteo (RS38S) on 437.825 MHz, in Robot36 #SSTV mode. Broadcast on the occasion of Russia Day 2026, celebrated on June 12. Rx with @airspy_com R2 and 7-element Yagi antenna in 🇬🇷.
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The 🇷🇺 🛰️ArcticSat-1 RS74S will burn up in the atmosphere around June 15. Telemetry rx during the last days in orbit will be confirmed by eQSL or QSL card. Frequency: 435.890 MHz Mode: GMSK USP 19200 bd More at t.me/amateursat/341566 Instructions on how to demodulate 19k2 bd ⬇️
Merkouris SV2HWM@SV2HWM
May 5
As 🛰️ArcticSat-1 is currently xmitting at 19200 bd, I thought it might be possible to trick the 9k6 GMSK USP SoundModem into demodulating these 19k2 packets, by adjusting the ppm value in the RX Corr field. Since 9k6 is half of 19k2, the required ppm value is -500000. It worked!
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2026-06-12. Telemetry reception from the decaying 🇷🇺 🛰️ArcticSat-1 (RS74S) on 435.890 MHz, in GMSK USP @ 19200 bd, with @airspy_com Mini and turnstile antenna LNA/BPF in 🇬🇷. Current altitude ~230 km. Orbital decay prediction: June 15. Decoded frames uploaded to the @SatNOGS db.
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Today, I was able to recover the Meteomodem M20 #Radiosonde with s/n 601-2-02249, released this morning from Thessaloniki airport LGTS (WMO 16622) and landed near my QTH (25 km route). Rx with @rtlsdrblog v.3 dongle and Sirio CX-395 antenna. Flight track: sondehub.org/601-2-02249
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2026-06-10. Telemetry reception from the decaying 🇷🇺 🛰️ ArcticSat-1 (RS74S) on 435.890 MHz, in GMSK USP @ 19200 bd. Current altitude ~235 km. Decay prediction: June 13-14. Sadly, the operator announced that there will be no farewell SSTV broadcast 😢 t.me/amateursat/341207
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Merkouris SV2HWM retweeted
Peter Vogel
@PeterVogel
Jun 10
The story behind "Bliss", the most-viewed photo ever. Hint: Windows XP. boredpanda.com/windows-xp-mo…

Guy On The Way To See His GF Takes A Random Photo That Becomes The Most Viewed Image In History

One image gave color to a whole generation. Over a billion people can recognise it in an instant. Redraw it from memory. Yet, it was only a few minutes in the making. An accidental image that would...

boredpanda.com
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2026-06-09 19:09 UTC. Another partial photo of the night sky received from the 🇷🇺🛰️UmKA-1 (RS40S) on 437.625 MHz, in GMSK USP 9600 bd with @airspy_com Mini and turnstile antenna LNA/BPF in 🇬🇷.
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2026-06-08 19:27 UTC. Photo of the Southern hemisphere starry sky near the Cruz constellation, received from the 🇷🇺🛰️UmKA-1 on 437.625 MHz, in GMSK USP 9600 bd with @airspy_com Mini and turnstile antenna LNA/BPF in 🇬🇷. Celestial bodies identification: nova.astrometry.net/user_ima…
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Correction: Crux constellation (Southern Cross)
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🛰 Meteor-M N2-4 LRPT RGB image 137.9 MHz / OQPSK @ 72k symbol rate. The 🇪🇸 islands Fuerteventura and Gran Canaria, as well as the 🇵🇹 island Madeira are visible among the clouds above the Atlantic ocean. Image, received in 🇬🇷 from a Western pass at 7.7° max elevation.
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2026-06-08 20:50 UTC. Telemetry reception from the decaying 🇷🇺 🛰️ArcticSat-1 (RS74S) on 435.890 MHz, in GMSK USP @ 19200 bd, with @airspy_com Mini and turnstile antenna LNA/BPF in 🇬🇷. Current altitude ~250 km. Decay prediction: June 14, according to sonik.space/decay/
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2026-06-08 08:30 UTC. Telemetry reception from the decaying 🇷🇺 🛰️ArcticSat-1 (RS74S) on 435.890 MHz, in GMSK USP @ 19200 bd, with @airspy_com Mini and turnstile antenna LNA/BPF in 🇬🇷. Current altitude ~260 km. Decay prediction: June 14, according to sonik.space/decay/
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2026-06-04 19:48 UTC – Image received from the 🇷🇺 🛰️ MONITOR-3 (RS58S), on 435.290 MHz, in Robot36 #SSTV mode, with @airspy_com R2 and Yagi antenna in 🇬🇷.
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🛰️ SAKHACUBE-CHOLBON (RS18S) #SSTV event, commemorating the International Children’s Day 2026. qsl.yksa.space/events/sstv-c… The seven transmitted images, as received in 🇬🇷 (with enhanced colour vibrancy).
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