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First, for you non-geeks, a Software Defined Radio (SDR) is a radio where the typical radio hardware has been replaced by software.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!
Top 3 Screen Protectors for the Pixel 4 Introduction. The Google’s Pixel 4 is a remarkable phone. That’s why we recommend that you encase your screen with the best Pixel 4 screen protectors. We have taken the liberty of selecting a couple of models across different price point categories, so without any further ado, let’s dive straight into it:
Top 3 Screen Protectors for the Galaxy S20 Ultra Introduction Samsung’s imminent launch of the Galaxy S20 Ultra has got dozens of brands riled up. It’s safe to say that every brand that manufactures smartphone accessories will have their own version of the Galaxy S20 Ultra screen protector before the phone even gets out on the market. In fact, a plethora of protective cases and wallets have already started popping up here and there. With the S20 specs being already made public, the brands knew what to expect and did their best to include the finest features they could muster. Today we are going to talk about the top 3 best protective cases for the Samsung’s Galaxy S20 Ultra, so let’s get straight to it, shall we?
The Top 5 Leather Wallets for the Galaxy S20 Smartphone Introduction Taking proper care of our precious possessions is something we should all be striving to do, especially if we’re talking about smartphones which cost a small fortune. You could look for a sturdy, rigid case and make your phone pretty much impervious to all damage, or you could search for a fancy case that doesn’t particularly do much in terms of actual protection, but it looks nice, which is probably just as important. What’s great about living in these modern times is that you can find both of the aforementioned qualities in a single product. Today we’re going to talk about some of the best leather wallets for the Samsung Galaxy S20 smartphone, so without any further ado, let’s get straight to it.