SQ3SWF

@Sq3Swf

VHF, UHF, Sats, DIY radio, QRP, CW...

Vrijeme pridruživanja: srpanj 2016.

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  1. proslijedio/la je Tweet
    2. velj

    Finally🥇 🇵🇱 is Multi-Operator Champion in Contest 2019 from JO70UR Śnieżka Mountain🏔️over 1602m ASL. 🍾🍾 Official results Congratulations to 🥈 🥉 and others for their high scores

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  2. 12. sij

    AD8317 RF power meter is alive! Todo: housing, a few buttons and obviously - a proper calibration. I prefer the tiny OLED over 2x16, especially for a handheld device.

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  3. 7. sij

    Szrenica 🏔️ Few hundred meters away from old contest QTH 📡

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  4. 31. pro 2019.
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  5. 29. pro 2019.

    transmitting some SSTV @ 434.650 MHz 🖼️🎶📡

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  6. 28. pro 2019.

    Strange signals in 70cm band

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  7. proslijedio/la je Tweet
    27. pro 2019.

    Inspired by 's recent blog post, tried to send some 2 kbaud DVB-S2 short frames through the narrowband transponder. Looks like I need to GPS-lock all my stuff.

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  8. proslijedio/la je Tweet
    26. pro 2019.

    I couldn't attend so I’ve got a spare ticket to sell or give away if you can’t afford it (paying a part of full price also works). Revolut or SEPA preferred

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  9. 24. pro 2019.

    Poor man's SAQ 17.2 kHz receiver - TL072 op-amp, rtl-sdr in direct sampling mode & 3 meters of wire as antenna. Not great, not terrible - lot of room for improvement, but I easily copied the CW message.

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  10. 17. pro 2019.

    That's a cute little detector. I'm going to box it, calibrate it and make it into a serious power meter 😁

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  11. proslijedio/la je Tweet
    23. lis 2019.
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  12. 9. pro 2019.

    Local 23cm beacon heard at the same time on 2ppm tcxo Pluto (left) and stock Airspy Mini (right). Pluto drifts upwards during warmup period, Airspy goes down (~2 minutes bottom to top) Airspy carrier is wobbly, much more stable (and pleasant to listen to) on Pluto.

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  13. 9. pro 2019.

    I replaced stock oscillator in Pluto with cheap (<$1) tcxo. Plug and play, no need for any changes on PCB, pad layout fits. Should help with ssb on

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  14. proslijedio/la je Tweet
    25. stu 2019.

    5 autumn microwave workshops 2019 5 Jesienne Warsztaty Mikrofalowe 2019 photos

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  15. 24. stu 2019.

    Are these calibration kits good enough for NanoVNA, or do I need to find something better..? ;-)

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  16. 23. stu 2019.

    I've found gold 💰💰💰

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  17. 23. stu 2019.

    50 years old VHF bandpass filter made by SP1CNV. It aged well!

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  18. proslijedio/la je Tweet
    19. stu 2019.

    How decrease the noise figure very fast???

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  19. proslijedio/la je Tweet
    20. stu 2019.

    W1GHZ's Microwave Antenna Book is online at . Paul's book is an excellent resource for . If you haven't seen it, look at it.   He has added an update of Chapter 7, Slot Antennas, and an improved 32-bit version of the HDL_ANT program for Windows.

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  20. 12. stu 2019.

    You wouldn't download an amplifier, would you?

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