Here are a couple of items from the electronics engineering trad magazines that hams might find interesting:
Digital and analog PC TV dongles—the basics. Some amateur radio operators are using these dongles as a software-defined radio (SDR).
Can public-safety radio’s P25 survive LTE? P25 has been with us since 1988, but its capacity and bandwidth are being obsoleted by the latest and anticipated next generations of cellular technology.
Material effectively replaces gold. Impact Coatings claims that its Silver MaxPhase performs like gold while carrying a much lower price tag.