Software Defined Radios (“SDR”) were first developed by and for the US Air Force to enhance air to ground radio communication. The SDR software performs filtering, demodulation and signal enhancement. More recently, SDRs have moved into the mainstream. Typical amateur and home uses include morse code, signal sideband, slow-scan television and packet radio. www.wikipedia.com
First, for you non-geeks, a Software Defined Radio (SDR) is a radio where the typical radio hardware has been replaced by software. This allows you to turn any computing device (laptop, smartphone, etc.) into a radio. With an SDR, first responders and others cancommunicate with anyone, anywhere – no cell phone towers necessary. The Wireless Innovation Forum wrote a short paper with a thorough overview.
Most of the SDR kits available on the market today assume that you have some level of technical knowledge. Many of the kits are USB peripherals that require programming knowledge to implement. Some are full kits with limited functionality others are pc boards for enhancing existing radio hardware. Bliley Technologies wrote a good summary of the various SDR kits available in 2016 and again in 2018. In the years spanning these two reviews, the technology had developed significantly.
And, that technology continues to develop. There is a new SDR solution coming soon that brings this high-tech device into the hands of all of us – using your smartphone as the base components. i-BLADES is developing an SDR Smartblade that will snap onto your i-BLADES Smartcase, transforming your smartphone into a two way radio. How cool!
How to keep your smartphone clean and sanitized The recent COVID-19 (AKA Corona Virus) outbreak of the pandemic startled us all, especially due to the fact that the virus is highly infectious and even potentially lethal. More and more people are coming to an understanding that they need to clean and sanitize every single item they touch whenever they go outside, especially smartphones and wallets.
Rumours, Leaks and Reviews for Galaxy S30 or S21 Smartphones made by Samsung are undoubtedly among the finest on the market, and every time this brand schedules a release a huge cloud of dust rises up alongside tons of rumors. As soon as S21 (may also change name to S30)was announced, people all over the world have speculated what it will be like, what specs it will come supplied with, and, most importantly, will it be worth the money? The latter is exceptionally hard to answer, mainly due to the fact that Samsung’s Galaxy S21 is among the most expensive boutique level smartphones ever to exist.