Search results
Results from the WOW.Com Content Network
A ready-to-use module is a complete system with a transceiver, and optionally an MCU and antenna on a printed circuit board. While most of the modules in this list are Zigbee , Thread , ISA100.11a , or WirelessHART modules, some don't contain enough flash memory to implement a Zigbee stack and instead run plain 802.15.4 protocol, sometimes with ...
20 MSPS with 12 built-in preselection filters and 3 antenna ports 0.5 1/1 USB 2.0 Yes Yes Yes none SDRplay: RSPduo [100] Pre-built 1 kHz – 2 GHz 10 MHz 14<2 MHz 12<8 MHz 10<9.216 MHz 8>9.216 MHz No Two independent tuners, each with 11 built-in preselection filters. 3 antenna ports 0.5 2/2 USB 2.0 Yes Yes Yes none
Multichannel multipoint distribution service (MMDS), formerly known as broadband radio service (BRS) and also known as wireless cable, is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception.
A whip antenna is an antenna consisting of a straight flexible wire or rod. The bottom end of the whip is connected to the radio receiver or transmitter. A whip antenna is a form of monopole antenna. The antenna is designed to be flexible so that it does not break easily, and the name is derived from the whip-like motion that it exhibits when ...
In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave ...
In telecommunications, [1] particularly in radio frequency engineering, signal strength refers to the transmitter power output as received by a reference antenna at a distance from the transmitting antenna. High-powered transmissions, such as those used in broadcasting, are expressed in dB-millivolts per metre (dBmV/m).
AN/PRC 77 radio and handset American soldier using the KY-38 "man-pack", part of the NESTOR voice encryption system that was used during the Vietnam War. The upper unit is an AN/PRC-77 radio transceiver. The combined weight of the units, 54 pounds (24.5 kg), proved an obstacle to their use in combat.
Linksys WRT54G series routers fed the antennas with short LMR400 cables, so the effective gain of the complete antenna is estimated at 30 dBi. [ 12 ] This is the largest known range attained with this technology, improving on a previous US record of 201 km (125 mi) achieved last year in U.S.