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Books

  • Technical Handbook for Radio Monitoring HF Volume I - Latest Edition 49,00 €

    Technical Handbook for Radio Monitoring HF Volume I – Latest Edition

    New Edition 2026
  • Technical Handbook for Radio Monitoring HF  Volume II - Latest Edition 49,00 €

    Technical Handbook for Radio Monitoring HF Volume II – Latest Edition

    New Edition 2026
  • Frequency Handbook for Radio Monitoring HF Latest Edition 39,00 €

    Frequency Handbook for Radio Monitoring HF – Latest Edition

    New Edition 2026
  • Technical Handbook for Satellite Monitoring - Latest Edition 49,00 €

    Technical Handbook for Satellite Monitoring – Latest Edition

  • Signal Analysis for Radio Monitoring Latest Edition 49,00 €

    Signal Analysis for Radio Monitoring – Latest Edition

  • Technical Handbook for Radio Monitoring VHF/UHF Latest Edition 49,00 €

    Technical Handbook for Radio Monitoring VHF/UHF – Latest Edition

    New Edition 2022

Bundles

  • Technical Handbook for Radio Monitoring HF Bundle 89,00 €

    Technical Handbook for Radio Monitoring HF Bundle

    New Edition 2026
  • All 6 Books Bundle 259,00 €

    All 6 Books Bundle

  • Any 4 Book Bundle 179,00 €

    Any 4 Book Bundle

  • Any 2 Book Bundle 89,00 €

    Any 2 Book Bundle

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Signals, signals and signals

DF3LZ
Retweet on Twitter Roland Retweeted
sv2hwm Merkouris SV2HWM @sv2hwm ·
9 Jul

Reception of continuous wave signal from the old 🇨🇳 🛰 FengYun-1D on 480.019 MHz, with strong QRM on 480 MHz from the USB port, where my @airspy_com R2 sdr was connected. Besides, there is DVB-T tv channel 22, centered on 482 MHz (from 478 MHz to 486 MHz). Replay of recorded IQ.

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Retweet on Twitter Roland Retweeted
i56578_swl Antonio (Tony) I56578 SWL 🇮🇹 @i56578_swl ·
3 Jul

Russian Pacific Fleet HF intercept: voice hail on 8439 kHz negotiates a shift to 9100 kHz, followed by FSK 300Bd/500Hz data bursts. Roles of callsigns Greyder/Volnoboy seem to suggest a doctrine that inverts NATO's FAB/BRASS model.
https://i56578-swl.blogspot.com/2026/07/voice-coordination-fsk-300bd500.html

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df3lz Roland @df3lz ·
2 Jul

Installed my TinyGS station in Oreoi on Evia. The station is receiving nearly 1500 packets in 24 h.

3

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Retweet on Twitter Roland Retweeted
sfx_ewss sfx_ewss @sfx_ewss ·
29 Jun

#JGSDF 7-element #CDAA #HFDF installation on Yonaguni, Okinawa. I'm surprised they installed the antenna array in the middle of a cluster of buildings; this is against the basic requirement of obstacle clearance when setting up a system like that.

#JSDF #TaiwanStrait #ECS

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  • New “Technical Handbook for Radio Monitoring HF Edition 2026” is ready
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