Abstract: To solve the poor quality of Very high frequency (VHF) speech communication in the navigation field, a VHF speech enhancement model based on an improved transformer (VHFSE) is proposed in ...

The magnetic loop antenna is a familiar sight in radio amateur circles as a means to pack a high performance HF antenna into a small space. It takes the form of a large single-turn coil made into a ...

The VHF radio is undoubtedly the most common piece of electronic gear on saltwater fishing boats. It enables us to carry on casual conversations over substantial distances on marine radio channels, ...

Abstract: A conformal log-periodic balloon antenna operating at a very high-frequency (VHF) band is presented in this communication. The antenna consists of eight conformal bowtie-dipole elements ...

Effective communication is crucial for efficient operations and worker safety at waste hauling companies, landfill operators, and recycling facilities. Whether deploying a new system or enhancing an ...

Sam Fortescue tests some of the best handheld VHF radios on the market… A VHF radio is a staple on almost any boat’s equipment list and a legal requirement in the UK for boats over 45ft. For sheer ...

Austin, June 29, 2025 (GLOBE NEWSWIRE) -- Land Mobile Radio Market Size & Growth Insights: According to the SNS Insider Report, “The Land Mobile Radio Market Size was valued at USD 24.24 billion in ...

Virtual LANs (VLANs) allow the segmentation of a physical network into multiple logical networks. VLAN trunking is the process of transporting multiple VLANs over a single network link—typically ...

The start of VHF broadcasts from the transmitter at Wrotham on 2 May 1955 was greeted with much ceremony. The chance for better quality sound, free from the interference that dogged the existing ...

A 6×6 truck carries the radar antenna of Alpha Design Technologies' VHF radar, which will be supplied to the IAF. (Janes/Oishee Majumdar) Bangalore-based Alpha Design Technologies has secured a ...

DRDO's new VHF-SR radar is seen displayed at Aero India 2025. (Janes/Ajay Shankar Pandey) India's Defence Research and Development Organisation (DRDO) has unveiled a new very-high-frequency (VHF)-band ...