A roundup of recent products in the GNSS and inertial positioning industry from the January 2020 issue of GPS World magazine. The heavy-duty CHCNAV AT311T is designed for demanding applications ...

[Charlie Morris] has been busy building a portable ham radio rig and documenting his progress in a series of videos. You can see the first one below. There’s four parts (more if you count things like ...

[K6ARK] likes to operate portable, so he puts together very lightweight antennas. One of his latest uses tiny toroids and SMD capacitors to form trap elements. You can see the construction of it in ...

Security professionals, government agencies and monitoring enthusiasts will welcome the new digital upgrade to AOR’s legendary AR8200D handheld receiver. In addition to its many standard operating ...

Although Digital Radio Mondiale (DRM) services have been broadcast since 2003, it is only recently that domestic portable receivers have entered the market. The senstivity of this early equipment has ...

At present, portable receivers generally use ferrite rod antennas for LF and MF (below 2 MHz), and whip antennas for HF (up to 30 MHz). Each type has proved effective in its particular application.