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Monthly Archives: July 2019

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15 July 2019
Our booth on the HAM RADIO 2019 at Lake Konstanz by Roland
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Signals, signals and signals

DF3LZ
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cqcqcqdx RossRadio @cqcqcqdx ·
1 Mar

The Super Dual Auroral Radar Network (SuperDARN) antennas located at the Geographic South Pole in Antarctica. SuperDARN is an international radar network consisting of 32 installations used to study the Earth's upper atmosphere and ionosphere.

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i56578_swl Antonio (Tony) I56578 SWL 🇮🇹 @i56578_swl ·
24 Feb

Unid 142-byte Data Link protocol with fragmentation support. Data stream is structured into blocks and logical fragments which are one-to-one mapped to physical bursts. The process is orchestrated by the Block ID ➔ Fragment ID ➔ Packet Index hierarchy.
https://i56578-swl.blogspot.com/2026/02/a-142-byte-data-link-protocol-with.html

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df3lz Roland @df3lz ·
22 Feb

Very nice marine radioroom clock. Download at https://archive.org/details/marine-radioroom-clocks/

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df3lz Roland @df3lz ·
20 Jan

The "Technical Handbook for Radio Monitoring HF Volume I and Volume II" are now available at http://www.frequencymanager.de . Both books do have more then 40 new pages with lots of new modes active today.

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  • New “Technical Handbook for Radio Monitoring HF Edition 2026” is ready
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  • Our booth on the HAM RADIO 2019 at Lake Konstanz

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