A few years back, I decided to dive into the world of Digital Mobile Radio. I have a long history in IP networking and information technology, so I’m naturally intrigued by this confluence of networking technology and radio. I even worked on a project with a customer who was building a new IP transport for…
Month: February 2021
Cell Phone Frequencies
Did you ever wonder what frequencies cell phones use? I always though it was about 900 MHz but look at the table below to see a wide range of bands that are used. The matrix below meshes provider against technology. We can see that 5G distinguishes itself from the others in that it uses 28…
SHARES, DHS and Winlink – Thanks Steve Waterman!
Many thanks to Steve Waterman (K4CJX) for his presentation on SHARES and DHS Emcomm planning. His presentation is available here. For more information contact Steve at firstname.lastname@example.org.
CQ: Calling any station
As the club web presence begins to evolve and grow, there’s a genuine opportunity for all club members to have a bigger impact. The driving force behind changing the format of our web site was to create a platform for members to communicate and share their experience. Your posts need not be long, nor technical….
Contingencies in Amateur Radio – Power Blackout
Here’s the scenario… you’re the net control operator for your club’s weekly net and just as you finish the preamble and are ready to pause for check-ins, the power at your home QTH goes out. You have no idea if it will be out for a minute or an hour or a day. If there’s…