Using digital techniques has caused a resurgence of interest in VLF — very low frequency — radio. Thanks to software-defined radio, you no longer need huge coils. However, you still need a suitable ...

Satellite communication (SATCOM) is one of the pillars of the modern world, with applications including Global Positioning System (GPS) and Global Navigation Satellite System (GNSS) navigation, space ...

[K5ACL], aka [SignalSearch], recently brought his active receive loop antenna in off the roof to give it a checkup and perform any necessary maintenance. While it was in the shack, he took the ...

Every passing year sees radio transceivers get nearer to the ideal software-defined radio (SDR). The "ideal" will occur when the antenna is connected directly to a DSP baseband processor, which ...