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  2. WSPR (amateur radio software) - Wikipedia

    en.wikipedia.org/wiki/WSPR_(amateur_radio_software)

    The software code is now open source and is developed by a ... The program can decode signals with a signal-to-noise ratio as low as −28 dB in a 2.5 kHz bandwidth. [2]

  3. bmon - Wikipedia

    en.wikipedia.org/wiki/Bmon

    bmon is a free and open-source monitoring and debugging tool to monitor bandwidth and capture and display networking-related statistics.It features various output methods including an interactive curses user interface and programmable text output for scripting.

  4. List of amateur radio modes - Wikipedia

    en.wikipedia.org/wiki/List_of_amateur_radio_modes

    FreeDV - Narrow bandwidth, open source digital voice mode. Uses Codec 2 with differential or coherent PSK modulation, as well as the new experimental high-fidelity Radio Autoencoder (RADE) based on the Framewise Autoregressive GAN (FARGAN) ML vocoder. M17 - Another open source [1] digital voice mode based on Codec 2.

  5. Project 25 - Wikipedia

    en.wikipedia.org/wiki/Project_25

    Several hand-held Project 25 radios used around the world. Project 25 (P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1]

  6. Zigbee - Wikipedia

    en.wikipedia.org/wiki/Zigbee

    Zigbee is an IEEE 802.15.4-based specification for a suite of high-level communication protocols used to create personal area networks with small, low-power digital radios, such as for home automation, medical device data collection, and other low-power low-bandwidth needs, designed for small scale projects which need wireless connection.

  7. 15-meter band - Wikipedia

    en.wikipedia.org/wiki/15-meter_band

    The 15-meter band (also called the 21-MHz band or 15 meters) is an amateur radio frequency band spanning the shortwave spectrum from 21 to 21.45 MHz. The band is suitable for amateur long-distance communications , and such use is permitted in nearly all countries.

  8. Cacti (software) - Wikipedia

    en.wikipedia.org/wiki/Cacti_(software)

    Cacti is an open-source, web-based network monitoring, performance, fault and configuration management framework designed as a front-end application for the open-source, industry-standard data logging tool RRDtool. [3] Cacti allows a user to poll services at predetermined intervals and graph the resulting data. Through the use of Cacti plugins ...

  9. Wize technology - Wikipedia

    en.wikipedia.org/wiki/Wize_technology

    Wize technology is a low-power wide-area network technology using the 169 MHz radio frequency. It was created by the Wize Alliance in 2017. Derived from the European Standard Wireless M-Bus, it has mainly been used by utility companies for smart metering infrastructures for gas, water and electricity but is equally open to other applications in industry and 'Smart City' spaces.