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AFEDRI SDR [17] Pre-built Active 30 kHz – 35 MHz, 35 MHz – 1700 MHz 2.3 MHz 12 No 80 MSPS 0/2 USB 2.0, 10/100 Ethernet Yes Yes Yes AirSpy R2 [18] Pre-built Active 24 – 1700 MHz 10 MHz 12 N/A No 10 MSPS MSps ADC sampling, up to 80 MSPS for custom applications 0.5 0/1 USB Yes Yes Yes using ports none AirspyHF+ [19] Pre-built Active
Each competitor receives a detailed topographic map of the competition area. The map will indicate the location of the start with a triangle and the location of the finish with two concentric circles. Somewhere within the competition area designated on the map, the meet organizer will have placed five low power radio transmitters.
There is also the ability to map user's positions using the D’PRS function of D-STAR. The application is written in Python/GTK and is cross-platform. It runs on Windows, Mac OS X, and Linux. The application was developed by Dan Smith (KK7DS) for the Washington County Amateur Radio Emergency Service in Oregon. [23]
Software-defined radio (SDR) is a radio communication system where components that conventionally have been implemented in analog hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a computer or embedded system. [1]
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Antibiotic use was not associated with an increased risk of cognitive impairment and dementia in healthy older adults, according to a recent study.
Finland handed the defending champion United States its first loss at the 2025 world junior hockey championship as Tuomas Uronen scored in overtime for a 4-3 win on Sunday afternoon.
Maps are useful in presenting key facts within a geographical context and enabling a descriptive overview of a complex concept to be accessed easily and quickly. WikiProject Maps encourages the creation of free maps and their upload on Wikimedia Commons. On the project's pages can be found advice, tools, links to resources, and map conventions.