The optimal way of receiving a digital TV signal is an outdoor antenna designed with VHF and UHF receiving frequencies.

When conditions prevent a fellow boater from contacting the USCG directly, a Good Samaritan steps in to help as a VHF relay.

Electromagnetic Spectrum (EMS) operations in contested environments require battlefield assumptions based on mission dependent factors and complex ...

A caminho das férias, o Governo anunciou e conseguiu aprovar um conjunto de medidas que alimentam a despesa e reduzem a receita do Estado. Já não temos de nos preocupar com as contas do Estado?

Abstract: Body-centric wireless communications represent a well-established field of research, with many studies and applications developed in a range of frequencies that extend from 400 MHz up to 10 ...

Abstract: Energy efficiency (EE) has become a key design metric for the sustainable development of future wireless communications. Dynamic metasurface antennas (DMAs), with their compact size and low ...

September 10th, 2025 Satellite NTN Market Size Worth USD 5,129.52 Million by 2034 \| CAGR: 33.5%. Rating 1 2 3 4 5; The global Satellite NTN market size is expected to reach USD 5, ...

As principais notícias de país e do mundo, em momentos-chave do dia, com o rigor da rádio pública portuguesa.

Frequency domain, multi-tone harmonic balance, simulation of scattering parameters and noise in nonlinear circuits containing Josephson junctions. Scattering parameter conversion and interconnection.