by Bert | Aug 25, 2020 | Digital, General News, Radios
Ham Radio has changed in recent years from traditional point to point communication using Frequency Modulation and Single Side-band modes of communication to Digital Modulation. Radio Ham networks now include D.M.R. or Digital Mobile Radio and a great hand-held...
by Bert | Aug 25, 2020 | General News, Radios
Walkie talkies are very commonly used for communication between two points. The half duplex channels allow only one radio to transmit at one point of time and the other would have to just listen. It is only one way communication that is possible. They have...
by Bert | Nov 17, 2018 | General News, Misc, Radios
From technical to social aspects, ham radios have something for everyone When disaster strikes somewhere in the world, ham radio operators are uniquely qualified to assist with communications. Their battery-, solar- and generator-run equipment works even when...
by Bert | Jun 15, 2018 | Antenna, General News, Radios, Satellites
Puerto Rico’s Observatory Is Still Recovering From Hurricane Maria As Hurricane Maria approached Puerto Rico in late September 2017, planetary scientist Ed Rivera-Valentin knew he needed to get out. His apartment was near the coast, in Manatí, and some...
by Bert | May 16, 2016 | Frequencies, General News, Misc, Radios
Everybody knows that the so called “BIG GUNS” will win the contest, but you will have fun even if you come in the 9999th . When “Hams” (Amateur Radio Operators) talk about the Big Guns, they are talking about the radio station that...
by Bert | Jan 27, 2016 | General News, Radios, SDR (Software Defined Radio)
What is RTL-SDR? The RTL-SDR is an ultra cheap software defined radio based on DVB-T TV tuners with RTL2832U chips. The RTL-SDR can be used as a wide band radio scanner. RTL-SDR is a very cheap software defined radio that uses a DVB-T TV tuner dongle based on...