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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.
The ASTRO 25 core is the hub for the communications network. It comprises P25 portable and mobile radios, dispatch consoles, data applications, and RF conventional or trunked sites. [16] In addition to ASTRO 25, Motorola also builds several other P25 radio models, including the APX family of radios, designed for first responders. [17]
20 MHz (streaming may be less due to USB 2.0) 12 12 Yes 61.44 MSPS 1/1 USB 2.0, Ethernet & WLAN with USB-OTG adapter Yes Yes Yes Xilinx Zynq Z-7010 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
Sarkis Acopian invented the first solar-powered radio in 1957. An experimental model, developed by General Electric, weighed just 10 ounces and was capable of working without light and recharging. It contained seven solar cells, four transistors and a small battery.
The PRC-163 is one of the Handheld, Manpack & Small Form Fit (HMS) components [3] of the Integrated Tactical Network family of radios, [1] the U.S. Army's modernization strategy for tactical radios. It is a member of L3Harris' Falcon IV family of tactical radios, and the successor to the Falcon III-family AN/PRC-152 Multiband Handheld Radio .
It was designed by G.D. Reynolds of Murphy Radio. Both AC and battery-operated versions were made. [7] [8] [9] Walkman – The original Walkman, released in 1979, was a portable cassette player. The Walkman brand was later extended to serve most of Sony's portable audio devices as well as related media devices, including radio receivers.
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